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| Part Number | M41T256YMT7E | M41T256YMT7F | M41T256YMH7E |
|---|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Status | Obsolete | Obsolete | Obsolete |
| Type | Clock/Calendar | Clock/Calendar | Clock/Calendar |
| Features | Leap Year, NVSRAM | Leap Year, NVSRAM | Leap Year, NVSRAM |
| Memory Size | 32KB | 32KB | 32KB |
| Time Format | HH:MM:SS:hh (24 hr) | HH:MM:SS:hh (24 hr) | HH:MM:SS:hh (24 hr) |
| Date Format | YY-MM-DD-dd | YY-MM-DD-dd | YY-MM-DD-dd |
| Interface | I²C, 2-Wire Serial | I²C, 2-Wire Serial | I²C, 2-Wire Serial |
| Voltage - Supply | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V |
| Voltage - Supply, Battery | 2.5V ~ 3.5V | 2.5V ~ 3.5V | 2.5V ~ 3.5V |
| Current - Timekeeping (Max) | 2.5mA @ 4.5V ~ 5.5V | 2.5mA @ 4.5V ~ 5.5V | 2.5mA @ 4.5V ~ 5.5V |
| Operating Temperature | -25°C ~ 70°C | -25°C ~ 70°C | -25°C ~ 70°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 44-BSOP (0.337", 8.56mm Width) | 44-BSOP (0.337", 8.56mm Width) | 44-BSOP (0.337", 8.56mm Width) requires SNAPHAT |
| Supplier Device Package | 44-SOH | 44-SOH | 44-SOH |
