. . . . 6 1.1 Security features . . . . . . . . 6 2 Operating modes . . . . . . . 12 2.1 2-wire bus characteristics . . . . .
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5.0, 3.3, or 3.0 V operation 400 kHz I2C bus NVRAM supervisor to non-volatize external LPSRAM 2.5 to 5.5 V oscillator operating voltage Automatic switchover and deselect circuitry Choice of power-fail deselect voltages
– M41ST87Y: THS = 1: VPFD≈ 4.63 V; VCC = 4.75 to 5.5 V THS = 0: VPFD≈ 4.37 V; VCC = 4.5 to 5.5 V
– M41ST87W: THS = 1: VPFD ≈ 2.9 V; VCC = 3.0 to 3.6 V THS = 0: VPFD ≈ 2.63 V; VCC = 2.7 to 3.6 V Two independent power-fail comparators (1.25 V reference) Counters for tenths/hundredths of seconds, seconds, minutes, hours, day, date, month, year, and century 128 bytes of.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | M41ST87Y |
STMicroelectronics |
5.0 V and 3.3/3.0 V secure serial RTC and NVRAM supervisor | |
2 | M41ST84W |
ST Microelectronics |
5.0 or 3.0V / 512 bit 64 x 8 SERIAL RTC with SUPERVISORY FUNCTIONS | |
3 | M41ST84Y |
ST Microelectronics |
5.0 or 3.0V / 512 bit 64 x 8 SERIAL RTC with SUPERVISORY FUNCTIONS | |
4 | M41ST85W |
ST Microelectronics |
5.0 OR 3.0V / 512 bit 64 x 8 SERIAL RTC and NVRAM SUPERVISOR | |
5 | M41ST85Y |
ST Microelectronics |
5.0 OR 3.0V / 512 bit 64 x 8 SERIAL RTC and NVRAM SUPERVISOR | |
6 | M411AX |
Heraeus Sensor Technology |
Platinum temperature sensor | |
7 | M41256xx |
Agere Systems |
DRAM | |
8 | M416 |
Heraeus Sensor Technology |
Platinum temperature sensor | |
9 | M41T0 |
ST Microelectronics |
Serial real-time clock | |
10 | M41T00 |
ST Microelectronics |
serial real time clock | |
11 | M41T00AUD |
STMicroelectronics |
Serial real-time clock | |
12 | M41T00CAP |
STMicroelectronics |
Serial access real-time clock |