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PCF8523T-1中文资料
PCF8523T-1数据手册规格书PDF详情
General description
The PCF8523 is a CMOS1 Real-Time Clock (RTC) and calendar optimized for low power consumption. Data is transferred serially via an I2C-bus with a maximum data rate of 1000 kbit/s. Alarm and timer functions are available with the possibility to generate a wake-up signal on an interrupt pin. An offset register allows fine-tuning of the clock. The PCF8523 has a backup battery switch-over circuit, which detects power failures and automatically switches to the battery supply when a power failure occurs.
Features and benefits
■ Provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal
■ Resolution: seconds to years
■ Clock operating voltage: 1.0 V to 5.5 V
■ Low backup current: typical 150 nA at VDD = 3.0 V and Tamb = 25°C
■ 2 line bidirectional 1 MHz Fast-mode Plus (Fm+) I2C interface, read D1h, write D0h2
■ Battery backup input pin and switch-over circuit
■ Freely programmable timer and alarm with interrupt capability
■ Selectable integrated oscillator load capacitors for CL = 7 pF or CL = 12.5 pF
■ Internal Power-On Reset (POR)
■ Open-drain interrupt or clock output pins
■ Programmable offset register for frequency adjustment
Applications
■ Time keeping application
■ Battery powered devices
■ Metering
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
恩XP |
20+ |
SMD |
11520 |
特价全新原装公司现货 |
|||
恩XP |
两年内 |
NA |
3000 |
实单价格可谈 |
|||
恩XP |
24+ |
QFN |
80000 |
只做自己库存 全新原装进口正品假一赔百 可开13%增 |
|||
恩XP |
24+ |
N/A |
20000 |
原厂直供原装正品 |
|||
恩XP |
25+ |
封装 |
500000 |
源自原厂成本,高价回收工厂呆滞 |
|||
恩XP |
2447 |
SMD |
100500 |
一级代理专营品牌!原装正品,优势现货,长期排单到货 |
|||
恩XP |
24+ |
N/A |
20000 |
原装进口正品 |
|||
恩XP |
23+ |
9865 |
原装正品,假一赔十 |
||||
恩XP |
24+ |
HVSON8 |
6000 |
市场最低 原装现货 假一罚百 可开原型号 |
|||
恩XP |
24+ |
N/A |
6000 |
原厂原装现货订货价格优势终端BOM表可配单提供样品 |
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Datasheet数据表PDF页码索引
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