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| Part Number | M48T201V-85MH1F | M48T201V-85MH1E | 
|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | 
| Product Status | Active | Obsolete | 
| Type | Clock/Calendar | Clock/Calendar | 
| Features | Alarm, Leap Year, Square Wave Output, Supervisor, Watchdog Timer, Y2K | Alarm, Leap Year, Square Wave Output, Supervisor, Watchdog Timer, Y2K | 
| Memory Size | - | - | 
| Time Format | HH:MM:SS (24 hr) | HH:MM:SS (24 hr) | 
| Date Format | YY-MM-DD-dd | YY-MM-DD-dd | 
| Interface | Parallel | Parallel | 
| Voltage - Supply | 3V ~ 3.6V | 3V ~ 3.6V | 
| Voltage - Supply, Battery | 3V | 3V | 
| Current - Timekeeping (Max) | 2mA @ 3V ~ 3.6V | 2mA @ 3V ~ 3.6V | 
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 44-BSOP (0.337", 8.56mm Width) requires SNAPHAT | 44-BSOP (0.337", 8.56mm Width) requires SNAPHAT | 
| Supplier Device Package | 44-SOH | 44-SOH |