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STMICROELECTRONICS M41ST85WMX6TR
RTC, Date Time Format (Day/Date/Month/Year/Century, HH:MM:SS:hh), I2C, 2.7V to 3.6V Supply, SOIC-28
- Manufacturer:
- STMICROELECTRONICS STMICROELECTRONICS
- Manufacturer Part No:
- M41ST85WMX6TR
- Order Code:
- 2806825
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- Product Range
- -
- Technical Datasheet:
- M41ST85WMX6TR Datasheet
- ECAD / MCAD
-
Product Overview
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)
Warnings
Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.
Product Information
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- :
- Day; Date; Month; Year; Century
- :
- HH:MM:SS:hh
- :
- Alarm RTC
- :
- 2.7V
- :
- 3.6V
- :
- SOIC
- :
- 28Pins
- :
- I2C
- :
- -40°C
- :
- 85°C
- :
- -
- :
- -
- :
- MSL 3 - 168 hours
Technical Documents (2)
Packaging type
Cut Tape
916 In stock Need more?
916 deliver in 3-4 business days from our UK warehouse :(UK stock) Order before 17:00 Mon-Fri (excluding National Holidays)
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You can reserve stock now just order your desired quantity and checkout as normal. The quantity that cant be dispatched now will be placed on back order and sent as soon as we get a delivery from our supplier. You only get charged when the products are dispatched to you.
Extra stock is available upon order to the Supplier Lead Time which is approximately 5/26/25
916 deliver in 3-4 business days from our UK warehouse
Due to market conditions delivery times are for general guidance only and may be subject to change at short notice
¥1,268.11
(
¥1,394.92
Inc. JCT)
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| Quantity | Price (Incl JCT) | Your Price (Incl JCT) |
|---|---|---|
| 1+ | ¥1,268.11 (¥1,394.92) | ( ) |
| 10+ | ¥982.83 (¥1,081.11) | ( ) |
| 25+ | ¥912.29 (¥1,003.52) | ( ) |
| 50+ | ¥873.10 (¥960.41) | ( ) |
| 100+ | ¥833.91 (¥917.30) | ( ) |
| 250+ | ¥796.29 (¥875.92) | ( ) |
| 500+ | ¥774.35 (¥851.79) | ( ) |
| Quantity | Price (Incl JCT) | Your Price (Incl JCT) |
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