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| TYPE | DESCRIPTION |
| Mfr | STMicroelectronics |
| Series | Timekeeper®, Snaphat® |
| Package | Tube |
| Part Status | Active |
| Type | Battery and Crystal |
| Battery Chemistry | Lithium |
| Capacity | 48mAh |
| Voltage - Rated | 2.8 V |
| Frequency | 32.768 kHz |
| Load Capacitance | 12.5 pF |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Base Product Number | M4T28 |
