Manufacturer Part #
M41ST85WMX6TR
M41ST Series 3.6 V I2C Serial RTC NVRAM / Microprocessor Supervisor - SOIC-28
| | |||||||||||
| | |||||||||||
| Mfr. Name: | STMicroelectronics | ||||||||||
| Standard Pkg: | Product Variant Information section Available PackagingPackage Qty:1000 per Reel Package Style:SOIC-28 Mounting Method:Surface Mount | ||||||||||
| Date Code: | 2416 | ||||||||||
Product Specification Section
STMicroelectronics M41ST85WMX6TR - Product Specification
Shipping Information:
Item cannot ship to certain countries. See List
Item cannot ship to following countries:
ECCN:
EAR99
PCN Information:
N/A
File
Date
Part Status:
Active
Active
STMicroelectronics M41ST85WMX6TR - Technical Attributes
Attributes Table
| Date Format: | DW:DM:M:Y |
| Time Format: | HH:MM:SS:hh |
| Interface: | I2C / 2-Wire / Serial |
| Non-Volatile Memory Size: | 44B |
| SRAM Size: | 64b |
| Supply Voltage-Nom: | 2.7V to 3.6V |
| Temperature Grade: | Industrial |
| Operating Temp Range: | -40°C to +85°C |
| Storage Temperature Range: | -55°C to +150°C |
| Package Style: | SOIC-28 |
| Mounting Method: | Surface Mount |
Features & Applications
The M41ST85WMX6TR is a 3.6 V supply voltage, I2C combination serial real time clock, NVRAM supervisor and microprocessor supervisor, available in SOX-28 Package.
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.
Features:
- Automatic battery switchover and WRITE protect for:
- Internal serial RTC and
- External low power SRAM (LPSRAM)
- 400 kHz I2C serial interface
- 3.0/3.3 V operating voltage
- VCC = 2.7 to 3.6 V
- Ultralow battery supply current of 500 nA (max)
- –40°C to +85°C operation
- RoHS compliant
- Lead-free second level interconnect
- Serial RTC features:
- 400 kHz I2C
- 44 bytes of general purpose NVRAM
- Counters for: seconds, minutes, hours, day, date, month, and year
- Century
- Tenths/hundredths of seconds
- Clock calibration register allows compensation for crystal variations over temperature
- 2.5 to 5.5 V oscillator operating voltage
- Microprocessor supervisor features:
- Programmable watchdog : 62.5 ms to 128 s time-out period
- Early power-fail warning circuit (PFI/PFO) with 1.25 V precision reference
- NVRAM supervisor features:
- Programmable squarewave generator (1 Hz to 32 kHz)
- –40°C to +85°C operation
Pricing Section
Global Stock:
7,000
USA:
7,000
On Order:
0
Factory Lead Time:
24 Weeks
Quantity
Web Price
1,000+
$4.31
Product Variant Information section
Available Packaging
Package Qty:
1000 per Reel
Package Style:
SOIC-28
Mounting Method:
Surface Mount