实时时钟(RTC)和日历

PCF8523 正常供应

PCF8523是一款CMOS实时时钟(RTC)和日历，最适合低功耗应用。数据可通过I²C总线以1000 kbit/s的最大数据速率串行传输。提供报警和定时器功能，可在中断针脚上生成唤醒信号。偏移寄存器允许对时钟进行精细调整。PCF8523具有备用电池切换电路，会检测断电情况并在断电发生时自动切换至电池电源。

产品详情

特征

  • 基于32.768 kHz石英晶体提供年、月、日、周、时、分和秒
  • 分辨率：秒至年
  • 时钟工作电压：1.0 V至5.5 V
  • 低备用电流：VDD = 3.0 V和Tamb = 25 °C时典型为150 nA
  • 2路双向1 MHz快速模式Plus (Fm+) I²C接口，读取D1h、写入D0h
  • 电池备用输入引脚和切换电路
  • 具备中断能力的自由可编程定时器和警报
  • CL = 7 pF或CL = 12.5 pF的可选集成振荡器负载电容
  • 内部电源上电复位(POR)
  • 开漏中断或时钟输出引脚
  • 用于频率调节的可编程偏移寄存器

Target Applications

  • 计时应用
  • 电池供电设备
  • 计量

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N true 0 PSPPCF8523zh 17 包装信息 Packing Information t935 3 封装信息 Package Information t790 4 应用笔记 Application Note t789 3 手册 Brochure t518 1 支持信息 Supporting Information t531 1 数据手册 Data Sheet t520 1 用户指南 User Guide t792 3 选型指南 Selector Guide t528 1 zh 0 false zh zh 数据手册 Data Sheet 1 1 7.0 English 1442058813705718079074 PSP 646.9 KB None None documents None 1442058813705718079074 /docs/en/data-sheet/PCF8523.pdf 646895 /docs/en/data-sheet/PCF8523.pdf PCF8523 documents N 2015-04-28 Real-Time Clock (RTC) and calendar /docs/en/data-sheet/PCF8523.pdf /docs/en/data-sheet/PCF8523.pdf Data Sheet N 980000996212993340 2022-12-07 pdf en Apr 28, 2015 980000996212993340 Data Sheet N Real-Time Clock (RTC) and calendar 应用笔记 Application Note 3 2 1.0 English Improved timekeeping accuracy with PCF85063, PCF8523 and PCF2123 using an external temperature sensor 1442087074494735975495 PSP 316.8 KB None None documents None 1442087074494735975495 /docs/en/application-note/AN11247.pdf 316783 /docs/en/application-note/AN11247.pdf AN11247 documents N N 2015-03-06 Improved timekeeping accuracy with PCF85063, PCF8523 and PCF2123 using an external temperature sensor /docs/en/application-note/AN11247.pdf /docs/en/application-note/AN11247.pdf Application Note N 645036621402383989 2024-04-23 pdf N en Mar 6, 2015 645036621402383989 Application Note Y N Improved timekeeping accuracy with PCF85063, PCF8523 and PCF2123 using an external temperature sensor 3 1.0 English 1442087330310721534478 PSP 763.2 KB None None documents None 1442087330310721534478 /docs/en/application-note/AN10853.pdf 763238 /docs/en/application-note/AN10853.pdf AN10853 documents N N 2016-07-11 ESD and EMC sensitivity of IC /docs/en/application-note/AN10853.pdf /docs/en/application-note/AN10853.pdf Application Note N 645036621402383989 2025-02-10 pdf N en Mar 14, 2013 645036621402383989 Application Note Y N ESD and EMC sensitivity of IC 4 2.0 English 1442087073862722241763 PSP 1.7 MB None None documents None 1442087073862722241763 /docs/en/application-note/AN10706.pdf 1672029 /docs/en/application-note/AN10706.pdf AN10706 documents N N 2016-07-11 Handling bare die /docs/en/application-note/AN10706.pdf /docs/en/application-note/AN10706.pdf Application Note N 645036621402383989 2024-07-12 pdf N en Jun 16, 2011 645036621402383989 Application Note Y N Handling bare die 用户指南 User Guide 3 5 6.0 Japanese 1442125286808710770774ja PSP 751.0 KB None None documents None 1442125286808710770774 /docs/ja/user-guide/UM10204.pdf 750958 /docs/ja/user-guide/UM10204.pdf UM10204 documents N N 2016-07-12 I2C-bus specification and user manual /docs/ja/user-guide/UM10204.pdf /docs/ja/user-guide/UM10204.pdf User Guide N 132339537837198660 2024-10-24 ja Apr 28, 2014 132339537837198660 User Guide Y N I2C-bus specification and user manual 7.0 English NXP Semiconductors developed a simple bidirectional 2-wire bus for efficient inter-IC control. This bus is called the Inter-IC or I2C-bus. Only two bus lines are required: a serial data line (SDA) and a serial clock line (SCL). Serial, 8-bit oriented, bidirectional data transfers can be made at up to 100 kbit/s in the Standard-mode, up to 400 kbit/s in the Fast-mode, up to 1 Mbit/s in the Fast-mode Plus (Fm+), or up to 3.4 Mbit/s in the High-speed mode. 1442125286808710770774 PSP 751.0 KB None None documents None 1442125286808710770774 /docs/en/user-guide/UM10204.pdf 750958 /docs/en/user-guide/UM10204.pdf UM10204 documents N N 2016-07-12 I2C-bus specification and user manual /docs/en/user-guide/UM10204.pdf /docs/en/user-guide/UM10204.pdf User Guide N 132339537837198660 2024-10-24 pdf N en Oct 1, 2021 132339537837198660 User Guide Y N I2C-bus specification and user manual 6 1.0 English 1442125392489718872945 PSP 369.2 KB None None documents None 1442125392489718872945 /docs/en/user-guide/UM10760.pdf 369198 /docs/en/user-guide/UM10760.pdf UM10760 documents N N 2015-10-05 User manual for the I²C-bus RTC PCF8523 demo board OM13511 /docs/en/user-guide/UM10760.pdf /docs/en/user-guide/UM10760.pdf User Guide N 132339537837198660 2023-10-17 pdf N en Oct 5, 2015 132339537837198660 User Guide Y N User manual for the I²C-bus RTC PCF8523 demo board OM13511 7 2.1 English 1442125649798715943478 PSP 983.6 KB None None documents None 1442125649798715943478 /docs/en/user-guide/UM10301.pdf 983634 /docs/en/user-guide/UM10301.pdf UM10301 documents N N 2016-07-11 User Manual for NXP Real Time Clocks PCF85x3, PCF85x63, PCA8565, PCF2123, and PCA21125 /docs/en/user-guide/UM10301.pdf /docs/en/user-guide/UM10301.pdf User Guide N 132339537837198660 2025-01-10 pdf N en Jul 24, 2015 132339537837198660 User Guide Y N User Manual for NXP Real Time Clocks PCF85x3, PCF85x63, PCA8565, PCF2123, and PCA21125 手册 Brochure 1 8 1.0 English NXP provides broad portfolio of lower power Real Time Clocks 1442048649860716713778 PSP 289.3 KB None None documents None 1442048649860716713778 /docs/en/brochure/75017076.pdf 289342 /docs/en/brochure/75017076.pdf 75017076 documents N N 2019-08-21 NXP ultra-low-power RTC/calendars PCF8523 and PCF2123 /docs/en/brochure/75017076.pdf /docs/en/brochure/75017076.pdf Brochure N 712453003803778552 2022-12-07 pdf N en Aug 21, 2019 712453003803778552 Brochure Y N NXP ultra-low-power RTC/calendars PCF8523 and PCF2123 封装信息 Package Information 4 9 1.1 English Outline and soldering footprint drawings of SO8 package 1455079789802691427607 PSP 175.4 KB None None documents None 1455079789802691427607 /docs/en/package-information/SOT96-1.pdf 175406 /docs/en/package-information/SOT96-1.pdf SOT96-1 documents N N 2016-10-08 Plastic, small outline package; 8 terminals; 1.27 mm pitch; 4.9 mm x 3.9 mm x 1.75 mm body /docs/en/package-information/SOT96-1.pdf /docs/en/package-information/SOT96-1.pdf Package Information N 302435339416912908 2024-10-24 pdf N en Jan 9, 2017 302435339416912908 Package Information Y N Plastic, small outline package; 8 terminals; 1.27 mm pitch; 4.9 mm x 3.9 mm x 1.75 mm body PDF 10 1.0 English 1455204455941703978236 PSP 161.3 KB None None documents None 1455204455941703978236 /docs/en/package-information/OL-PCF8523U.pdf 161332 /docs/en/package-information/OL-PCF8523U.pdf OL-PCF8523U documents N N 2016-02-12 Bare die; 12 bumps (6-6); 1.58 x 2.15 x 0.22 mm /docs/en/package-information/OL-PCF8523U.pdf /docs/en/package-information/OL-PCF8523U.pdf Package Information N 302435339416912908 2023-10-17 pdf N en Feb 10, 2016 302435339416912908 Package Information Y N Bare die; 12 bumps (6-6); 1.58 x 2.15 x 0.22 mm 11 1.0 English 1455079139512706823552 PSP 291.5 KB None None documents None 1455079139512706823552 /docs/en/package-information/SOT402-1.pdf 291544 /docs/en/package-information/SOT402-1.pdf SOT402-1 documents N N 2016-10-08 plastic thin shrink small outline package; 14 leads; body width 4.4 mm /docs/en/package-information/SOT402-1.pdf /docs/en/package-information/SOT402-1.pdf Package Information N 302435339416912908 2024-04-12 pdf N en Feb 8, 2016 302435339416912908 Package Information Y N plastic thin shrink small outline package; 14 leads; body width 4.4 mm 12 1.0 English 1455078939393730256077 PSP 195.8 KB None None documents None 1455078939393730256077 /docs/en/package-information/SOT909-1.pdf 195760 /docs/en/package-information/SOT909-1.pdf SOT909-1 documents N N 2016-02-12 plastic thermal enhanced very thin small outline package; no leads; 8 terminals; body 4 x 4 x 0.85 mm /docs/en/package-information/SOT909-1.pdf /docs/en/package-information/SOT909-1.pdf Package Information N 302435339416912908 2023-10-17 pdf N en Feb 8, 2016 302435339416912908 Package Information Y N plastic thermal enhanced very thin small outline package; no leads; 8 terminals; body 4 x 4 x 0.85 mm 包装信息 Packing Information 3 13 2.0 English 1442131194585714093488 PSP 237.4 KB Registration without Disclaimer None documents Extended 1442131194585714093488 /secured/assets/documents/en/packing/SOT96-1_118.pdf 237384 /secured/assets/documents/en/packing/SOT96-1_118.pdf SOT96-1_118 documents Y N 2013-04-19 SO8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 /webapp/Download?colCode=SOT96-1_118&lang_cd=zh /secured/assets/documents/en/packing/SOT96-1_118.pdf Packing Information N 145666923842250347 2024-03-13 pdf Y en Apr 19, 2013 145666923842250347 Packing Information Y N SO8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 14 2.0 English 1442131565647710164681 PSP 186.4 KB None None documents None 1442131565647710164681 /docs/en/packing/SOT909-1_118.pdf 186448 /docs/en/packing/SOT909-1_118.pdf SOT909-1_118 documents N N 2013-04-19 HVSON8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 /docs/en/packing/SOT909-1_118.pdf /docs/en/packing/SOT909-1_118.pdf Packing Information N 145666923842250347 2023-10-17 pdf N en Apr 19, 2013 145666923842250347 Packing Information Y N HVSON8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 15 1.0 English TSSOP14; Reel pack; SMD, 13"Q1/T1 Standard product orientationOrderable part number ending ,118 or JOrdering code (12NC) ending 118 1442131432535729363194 PSP 222.1 KB None None documents None 1442131432535729363194 /docs/en/packing/SOT402-1_118.pdf 222068 /docs/en/packing/SOT402-1_118.pdf SOT402-1_118 documents N N 2013-04-17 TSSOP14; Reel pack; SMD, 13"Q1/T1 Standard product orientationOrderable part number ending ,118 or JOrdering code (12NC) ending 118 /docs/en/packing/SOT402-1_118.pdf /docs/en/packing/SOT402-1_118.pdf Packing Information N 145666923842250347 2024-04-23 pdf N en Apr 8, 2013 145666923842250347 Packing Information Y N TSSOP14; Reel pack; SMD, 13"Q1/T1 Standard product orientationOrderable part number ending ,118 or JOrdering code (12NC) ending 118 选型指南 Selector Guide 1 16 0 Japanese リアルタイム・クロックセレクターガイド。高精度な計時、長い電池寿命、過酷な環境でのアプリケーションに、NXPの豊富なRTCのポートフォリオからお選びください。 1579625550018748134969ja PSP 1.1 MB None None documents None 1579625550018748134969 /docs/ja/product-selector-guide/RTCSelectorGuideA4.pdf 1111554 /docs/ja/product-selector-guide/RTCSelectorGuideA4.pdf RTCSelectorGuideA4 documents N N 2020-01-21 Real Time Clocks Selector Guide Brochure /docs/ja/product-selector-guide/RTCSelectorGuideA4.pdf /docs/ja/product-selector-guide/RTCSelectorGuideA4.pdf Selector Guide N 553557935274807777 2024-04-12 ja Apr 5, 2023 553557935274807777 Selector Guide Y N リアルタイム・ クロック 5 English Real Time Clocks Selector Guide. For highly accurate time-keeping, long battery life, and rugged environment applications, choose from NXP's extensive portfolio of RTCs. 1579625550018748134969 PSP 1.1 MB None None documents None 1579625550018748134969 /docs/en/product-selector-guide/RTCSelectorGuideA4.pdf 1111554 /docs/en/product-selector-guide/RTCSelectorGuideA4.pdf RTCSelectorGuideA4 documents N N 2020-01-21 Real Time Clocks Selector Guide Brochure /docs/en/product-selector-guide/RTCSelectorGuideA4.pdf /docs/en/product-selector-guide/RTCSelectorGuideA4.pdf Selector Guide N 553557935274807777 2024-04-12 pdf N en Apr 17, 2023 553557935274807777 Selector Guide Y N Real Time Clocks Selector Guide Brochure 支持信息 Supporting Information 1 17 1.0 English SSOP, TSSOP & VSO FOOTPRINT (WAVE SOLDERING) 1442126381432716559822 PSP 16.6 KB None None documents None 1442126381432716559822 /docs/en/supporting-information/SSOP-TSSOP-VSO-WAVE.pdf 16645 /docs/en/supporting-information/SSOP-TSSOP-VSO-WAVE.pdf SSOP-TSSOP-VSO-WAVE documents N N 2016-10-08 Footprint for wave soldering /docs/en/supporting-information/SSOP-TSSOP-VSO-WAVE.pdf /docs/en/supporting-information/SSOP-TSSOP-VSO-WAVE.pdf Supporting Information N 371282830530968666 2024-10-21 pdf N en Oct 8, 2009 371282830530968666 Supporting Information Y N Footprint for wave soldering false 0 PCF8523 downloads zh-Hans true 1 Y PSP Y Y 包装信息 3 /secured/assets/documents/en/packing/SOT96-1_118.pdf 2013-04-19 1442131194585714093488 PSP 13 Apr 19, 2013 Packing Information Registration without Disclaimer /secured/assets/documents/en/packing/SOT96-1_118.pdf English documents 237384 None 145666923842250347 2024-03-13 Y /webapp/Download?colCode=SOT96-1_118&lang_cd=zh SO8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 /secured/assets/documents/en/packing/SOT96-1_118.pdf documents 145666923842250347 Packing Information N en Extended Y pdf 2.0 Y N SO8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 237.4 KB SOT96-1_118 N 1442131194585714093488 /docs/en/packing/SOT909-1_118.pdf 2013-04-19 1442131565647710164681 PSP 14 Apr 19, 2013 Packing Information None /docs/en/packing/SOT909-1_118.pdf English documents 186448 None 145666923842250347 2023-10-17 N /docs/en/packing/SOT909-1_118.pdf HVSON8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 /docs/en/packing/SOT909-1_118.pdf documents 145666923842250347 Packing Information N en None Y pdf 2.0 N N HVSON8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 186.4 KB SOT909-1_118 N 1442131565647710164681 /docs/en/packing/SOT402-1_118.pdf 2013-04-17 1442131432535729363194 PSP 15 Apr 8, 2013 Packing Information TSSOP14; Reel pack; SMD, 13"Q1/T1 Standard product orientationOrderable part number ending ,118 or JOrdering code (12NC) ending 118 None /docs/en/packing/SOT402-1_118.pdf English documents 222068 None 145666923842250347 2024-04-23 N /docs/en/packing/SOT402-1_118.pdf TSSOP14; Reel pack; SMD, 13"Q1/T1 Standard product orientationOrderable part number ending ,118 or JOrdering code (12NC) ending 118 /docs/en/packing/SOT402-1_118.pdf documents 145666923842250347 Packing Information N en None Y pdf 1.0 N N TSSOP14; Reel pack; SMD, 13"Q1/T1 Standard product orientationOrderable part number ending ,118 or JOrdering code (12NC) ending 118 222.1 KB SOT402-1_118 N 1442131432535729363194 封装信息 4 /docs/en/package-information/SOT96-1.pdf 2016-10-08 1455079789802691427607 PSP 9 Jan 9, 2017 Package Information Outline and soldering footprint drawings of SO8 package PDF None /docs/en/package-information/SOT96-1.pdf English documents 175406 None 302435339416912908 2024-10-24 N /docs/en/package-information/SOT96-1.pdf Plastic, small outline package; 8 terminals; 1.27 mm pitch; 4.9 mm x 3.9 mm x 1.75 mm body /docs/en/package-information/SOT96-1.pdf documents 302435339416912908 Package Information N en None Y pdf 1.1 N N Plastic, small outline package; 8 terminals; 1.27 mm pitch; 4.9 mm x 3.9 mm x 1.75 mm body 175.4 KB SOT96-1 N 1455079789802691427607 /docs/en/package-information/OL-PCF8523U.pdf 2016-02-12 1455204455941703978236 PSP 10 Feb 10, 2016 Package Information None /docs/en/package-information/OL-PCF8523U.pdf English documents 161332 None 302435339416912908 2023-10-17 N /docs/en/package-information/OL-PCF8523U.pdf Bare die; 12 bumps (6-6); 1.58 x 2.15 x 0.22 mm /docs/en/package-information/OL-PCF8523U.pdf documents 302435339416912908 Package Information N en None Y pdf 1.0 N N Bare die; 12 bumps (6-6); 1.58 x 2.15 x 0.22 mm 161.3 KB OL-PCF8523U N 1455204455941703978236 /docs/en/package-information/SOT402-1.pdf 2016-10-08 1455079139512706823552 PSP 11 Feb 8, 2016 Package Information None /docs/en/package-information/SOT402-1.pdf English documents 291544 None 302435339416912908 2024-04-12 N /docs/en/package-information/SOT402-1.pdf plastic thin shrink small outline package; 14 leads; body width 4.4 mm /docs/en/package-information/SOT402-1.pdf documents 302435339416912908 Package Information N en None Y pdf 1.0 N N plastic thin shrink small outline package; 14 leads; body width 4.4 mm 291.5 KB SOT402-1 N 1455079139512706823552 /docs/en/package-information/SOT909-1.pdf 2016-02-12 1455078939393730256077 PSP 12 Feb 8, 2016 Package Information None /docs/en/package-information/SOT909-1.pdf English documents 195760 None 302435339416912908 2023-10-17 N /docs/en/package-information/SOT909-1.pdf plastic thermal enhanced very thin small outline package; no leads; 8 terminals; body 4 x 4 x 0.85 mm /docs/en/package-information/SOT909-1.pdf documents 302435339416912908 Package Information N en None Y pdf 1.0 N N plastic thermal enhanced very thin small outline package; no leads; 8 terminals; body 4 x 4 x 0.85 mm 195.8 KB SOT909-1 N 1455078939393730256077 应用笔记 3 /docs/en/application-note/AN11247.pdf 2015-03-06 1442087074494735975495 PSP 2 Mar 6, 2015 Application Note Improved timekeeping accuracy with PCF85063, PCF8523 and PCF2123 using an external temperature sensor None /docs/en/application-note/AN11247.pdf English documents 316783 None 645036621402383989 2024-04-23 N /docs/en/application-note/AN11247.pdf Improved timekeeping accuracy with PCF85063, PCF8523 and PCF2123 using an external temperature sensor /docs/en/application-note/AN11247.pdf documents 645036621402383989 Application Note N en None Y pdf 1.0 N N Improved timekeeping accuracy with PCF85063, PCF8523 and PCF2123 using an external temperature sensor 316.8 KB AN11247 N 1442087074494735975495 /docs/en/application-note/AN10853.pdf 2016-07-11 1442087330310721534478 PSP 3 Mar 14, 2013 Application Note None /docs/en/application-note/AN10853.pdf English documents 763238 None 645036621402383989 2025-02-10 N /docs/en/application-note/AN10853.pdf ESD and EMC sensitivity of IC /docs/en/application-note/AN10853.pdf documents 645036621402383989 Application Note N en None Y pdf 1.0 N N ESD and EMC sensitivity of IC 763.2 KB AN10853 N 1442087330310721534478 /docs/en/application-note/AN10706.pdf 2016-07-11 1442087073862722241763 PSP 4 Jun 16, 2011 Application Note None /docs/en/application-note/AN10706.pdf English documents 1672029 None 645036621402383989 2024-07-12 N /docs/en/application-note/AN10706.pdf Handling bare die /docs/en/application-note/AN10706.pdf documents 645036621402383989 Application Note N en None Y pdf 2.0 N N Handling bare die 1.7 MB AN10706 N 1442087073862722241763 手册 1 /docs/en/brochure/75017076.pdf 2019-08-21 1442048649860716713778 PSP 8 Aug 21, 2019 Brochure NXP provides broad portfolio of lower power Real Time Clocks None /docs/en/brochure/75017076.pdf English documents 289342 None 712453003803778552 2022-12-07 N /docs/en/brochure/75017076.pdf NXP ultra-low-power RTC/calendars PCF8523 and PCF2123 /docs/en/brochure/75017076.pdf documents 712453003803778552 Brochure N en None Y pdf 1.0 N N NXP ultra-low-power RTC/calendars PCF8523 and PCF2123 289.3 KB 75017076 N 1442048649860716713778 支持信息 1 /docs/en/supporting-information/SSOP-TSSOP-VSO-WAVE.pdf 2016-10-08 1442126381432716559822 PSP 17 Oct 8, 2009 Supporting Information SSOP, TSSOP & VSO FOOTPRINT (WAVE SOLDERING) None /docs/en/supporting-information/SSOP-TSSOP-VSO-WAVE.pdf English documents 16645 None 371282830530968666 2024-10-21 N /docs/en/supporting-information/SSOP-TSSOP-VSO-WAVE.pdf Footprint for wave soldering /docs/en/supporting-information/SSOP-TSSOP-VSO-WAVE.pdf documents 371282830530968666 Supporting Information N en None Y pdf 1.0 N N Footprint for wave soldering 16.6 KB SSOP-TSSOP-VSO-WAVE N 1442126381432716559822 数据手册 1 /docs/en/data-sheet/PCF8523.pdf 2015-04-28 1442058813705718079074 PSP 1 Apr 28, 2015 Data Sheet None /docs/en/data-sheet/PCF8523.pdf English documents 646895 None 980000996212993340 2022-12-07 /docs/en/data-sheet/PCF8523.pdf Real-Time Clock (RTC) and calendar /docs/en/data-sheet/PCF8523.pdf documents 980000996212993340 Data Sheet N en None pdf 7.0 N Real-Time Clock (RTC) and calendar 646.9 KB PCF8523 N 1442058813705718079074 用户指南 3 /docs/en/user-guide/UM10204.pdf 2016-07-12 1442125286808710770774 PSP 5 Oct 1, 2021 User Guide NXP Semiconductors developed a simple bidirectional 2-wire bus for efficient inter-IC control. This bus is called the Inter-IC or I2C-bus. Only two bus lines are required: a serial data line (SDA) and a serial clock line (SCL). Serial, 8-bit oriented, bidirectional data transfers can be made at up to 100 kbit/s in the Standard-mode, up to 400 kbit/s in the Fast-mode, up to 1 Mbit/s in the Fast-mode Plus (Fm+), or up to 3.4 Mbit/s in the High-speed mode. None /docs/en/user-guide/UM10204.pdf English documents 750958 None 132339537837198660 2024-10-24 N /docs/en/user-guide/UM10204.pdf I2C-bus specification and user manual /docs/en/user-guide/UM10204.pdf documents 132339537837198660 User Guide N en None Y pdf 7.0 N N I2C-bus specification and user manual 751.0 KB UM10204 N 1442125286808710770774 /docs/en/user-guide/UM10760.pdf 2015-10-05 1442125392489718872945 PSP 6 Oct 5, 2015 User Guide None /docs/en/user-guide/UM10760.pdf English documents 369198 None 132339537837198660 2023-10-17 N /docs/en/user-guide/UM10760.pdf User manual for the I²C-bus RTC PCF8523 demo board OM13511 /docs/en/user-guide/UM10760.pdf documents 132339537837198660 User Guide N en None Y pdf 1.0 N N User manual for the I²C-bus RTC PCF8523 demo board OM13511 369.2 KB UM10760 N 1442125392489718872945 /docs/en/user-guide/UM10301.pdf 2016-07-11 1442125649798715943478 PSP 7 Jul 24, 2015 User Guide None /docs/en/user-guide/UM10301.pdf English documents 983634 None 132339537837198660 2025-01-10 N /docs/en/user-guide/UM10301.pdf User Manual for NXP Real Time Clocks PCF85x3, PCF85x63, PCA8565, PCF2123, and PCA21125 /docs/en/user-guide/UM10301.pdf documents 132339537837198660 User Guide N en None Y pdf 2.1 N N User Manual for NXP Real Time Clocks PCF85x3, PCF85x63, PCA8565, PCF2123, and PCA21125 983.6 KB UM10301 N 1442125649798715943478 选型指南 1 /docs/en/product-selector-guide/RTCSelectorGuideA4.pdf 2020-01-21 1579625550018748134969 PSP 16 Apr 17, 2023 Selector Guide Real Time Clocks Selector Guide. For highly accurate time-keeping, long battery life, and rugged environment applications, choose from NXP's extensive portfolio of RTCs. None /docs/en/product-selector-guide/RTCSelectorGuideA4.pdf English documents 1111554 None 553557935274807777 2024-04-12 N /docs/en/product-selector-guide/RTCSelectorGuideA4.pdf Real Time Clocks Selector Guide Brochure /docs/en/product-selector-guide/RTCSelectorGuideA4.pdf documents 553557935274807777 Selector Guide N en None Y pdf 5 N N Real Time Clocks Selector Guide Brochure 1.1 MB RTCSelectorGuideA4 N 1579625550018748134969 true Y Products

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