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数量 | 价钱 (含税) |
---|---|
10+ | CNY43.780 (CNY49.4714) |
25+ | CNY40.560 (CNY45.8328) |
50+ | CNY38.800 (CNY43.844) |
100+ | CNY37.040 (CNY41.8552) |
250+ | CNY36.950 (CNY41.7535) |
500+ | CNY36.860 (CNY41.6518) |
产品信息
产品概述
The M41ST85W is a combination serial real-time clock, microprocessor supervisor, and NVRAM supervisor. It is built in a low-power CMOS SRAM process and has a 64-byte memory space with 44 bytes of NVRAM and 20 memory-mapped RTC registers. The RTC registers are configured in binary coded decimal (BCD) format. The M41ST85W combines a 400 kHz I2C serial RTC with an automatic backup battery switchover circuit for powering an external LPSRAM as well as the internal RTC. When power begins to fail, the switchover automatically connects to the backup battery to keep the RTC and external LPSRAM alive in the absence of system power.
- Internal serial RTC and
- External low power SRAM (LPSRAM)
- 400 kHz I2C serial interface
- 3.0/3.3 V operating voltage
- Seconds, minutes, hours, day, date, month, and year
- Century
- Tenths/hundredths of seconds
- Clock calibration register allows compensation for crystal variations over temperature
- Programmable watchdog 62.5 ms to 128 s time-out period
- Early power-fail warning circuit (PFI/PFO) with 1.25 V precision reference
- Battery monitor (battery low flag)
警告
该产品的市场需求较大, 导致交货时间延长。交货日期可能会有延迟。该产品不在折扣范围内。
技术规格
星期;日;月;年;世纪
实时时钟闹钟
3.6V
28引脚
-40°C
-
MSL 3 - 168小时
时:分:秒:hh
2.7V
SOIC
I2C
85°C
-
No SVHC (21-Jan-2025)
法律与环境
进行最后一道重要生产流程所在的地区原产地:China
进行最后一道重要生产流程所在的地区
RoHS
RoHS
产品合规证书