PCF8564A Real time clock and calendar
The PCF8564A is a CMOS real-time clock and calendar optimized for low power consumption. A programmable clock output, interrupt output and voltage low detector are also provided. All addresses and data are transferred serially via a two-line bidirectional I²C-bus. Maximum bus speed is 400 kbit/s. The built-in word address register is incremented automatically after each written or read data byte
产品特点 Features
- Provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal
- Wide clock operating voltage: 1.0 V to 5.5 V
- Low back-up current typical 250 nA at 3.0 V and 25 ℃
- 400 kHz two-wire I²C interface (1.8 V to 5.5 V)
- Low-voltage detector
- Alarm and timer functions
- Two integrated oscillator capacitors
- Programmable clock output for peripheral devices (32.768 kHz, 1.024 kHz, 32 Hz, and 1 Hz)
- Internal Power-On Reset (POR)
- I²C slave address: read A3h, write A2h
|
应用
- Timing devices
- Time of the day tracking
- Process timing
- Alarm
- Portable instruments
- Electronic metering
- Battery powered products
功能框图
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封装
| 型号 |
可订购的器件编号 |
订购码 (12NC) |
产品状态 |
封装 |
| PCF8564AU/10AB/1 |
9352 894 78005 |
PCF8564AU/10AB/1,0 |
量产 |
|
| PCF8564AU/5BB/1 |
9352 893 19015 |
PCF8564AU/5BB/1,01 |
量产 |
|
| PCF8564AU/5BD/1 |
9352 699 78015 |
PCF8564AU/5BD/1,01 |
量产 |
|
| PCF8564AU/5GB/1 |
9352 894 77015 |
PCF8564AU/5GB/1,01 |
量产 |
|
| PCF8564AU/5GC/1 |
9352 935 69015 |
PCF8564AU/5GC/1,01 |
量产 |
|
| PCF8564AUG/12HB/1 |
9353 010 11005 |
PCF8564AUG/12HB/1V |
量产 |
|
订货和供应
| 型号 |
订购码 (12NC) |
可订购的器件编号 |
化学成分 |
| PCF8564AU/10AB/1 |
9352 894 78005 |
PCF8564AU/10AB/1,0 |
PCF8564AU/10AB/1 |
| PCF8564AU/5BB/1 |
9352 893 19015 |
PCF8564AU/5BB/1,01 |
PCF8564AU/5BB/1 |
| PCF8564AU/5BD/1 |
9352 699 78015 |
PCF8564AU/5BD/1,01 |
PCF8564AU/5BD/1 |
| PCF8564AU/5GB/1 |
9352 894 77015 |
PCF8564AU/5GB/1,01 |
PCF8564AU/5GB/1 |
| PCF8564AU/5GC/1 |
9352 935 69015 |
PCF8564AU/5GC/1,01 |
PCF8564AU/5GC/1 |
| PCF8564AUG/12HB/1 |
9353 010 11005 |
PCF8564AUG/12HB/1V |
PCF8564AUG/12HB/1 |
PCF8564A 技术支持
| 档案名称 |
标题 |
类型 |
格式 |
| PCF8564A |
Real time clock and calendar |
Data sheet |
pdf |
| AN10441 |
Level shifting techniques in I2C-bus design
|
Application note |
pdf |
| AN255 |
I2C / SMBus Repeaters, Hubs and Expanders
|
Application note |
pdf |
| AN10710 |
Features and applications of the PCF8564A I2C-bus extender
|
Application note |
pdf |
| 75016527 |
Extend standard I2C-bus devices without worrying about offset voltages; NXP I2C-bus extender PCF8564A in a proven application
|
Brochure |
pdf |
| 75016532 |
Extend the I2C-bus with advanced repeaters and hubs; NXP 2-channel I2C-bus repeaters PCF8564Ax and 5-channel I2C-bus hubs PCA9516x
|
Leaflet |
pdf |
| 75016080 |
Extend the reach of any I2C-bus system without special offset voltage levels; NXP I2C-bus extender PCF8564A
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Leaflet |
pdf |
| 75017424 |
NXP I2C-bus solutions 2013: Smart, simple solutions for the 12 most common design concerns
|
Leaflet |
pdf |
| UM10204 |
I2C-bus specification and user manual
|
User manual |
pdf |
| UM10206 |
I2C Demonstration Board 2005-1 Quick Start Guide
|
User manual |
pdf |
| UM10323 |
PCA9600 demonstration board OM6293
|
User manual |
pdf |
