| Electronic component: | Description: | Manuf. | Package | Pins | T°min | T°max | Datasheet |
|---|
| DS1553P-100 | 4MEG NV Y2KC Timekeeping RAM | Dallas-Semiconductor | PowerCap | 34 | 0°C | 70°C | 268 K |
| DS1553P-70 | 4MEG NV Y2KC Timekeeping RAM | Dallas-Semiconductor | PowerCap | 34 | 0°C | 70°C | 268 K |
| DS1554-100 | 256K NV Y2KC Timekeeping RAM | Dallas-Semiconductor | - | 32 | 0°C | 70°C | 284 K |
| DS1554-70 | 256K NV Y2KC Timekeeping RAM | Dallas-Semiconductor | - | 32 | 0°C | 70°C | 284 K |
| DS1554P-100 | 256K NV Y2KC Timekeeping RAM | Dallas-Semiconductor | PowerCap | 34 | 0°C | 70°C | 284 K |
| DS1554P-70 | 256K NV Y2KC Timekeeping RAM | Dallas-Semiconductor | PowerCap | 34 | 0°C | 70°C | 284 K |
| DS1554W-120 | 256K NV Y2KC Timekeeping RAM | Dallas-Semiconductor | - | 32 | 0°C | 70°C | 284 K |
| DS1554W-150 | 256K NV Y2KC Timekeeping RAM | Dallas-Semiconductor | - | 32 | 0°C | 70°C | 284 K |
| DS1554WP-120 | 256K NV Y2KC Timekeeping RAM | Dallas-Semiconductor | PowerCap | 34 | 0°C | 70°C | 284 K |
| DS1554WP-150 | 256K NV Y2KC Timekeeping RAM | Dallas-Semiconductor | PowerCap | 34 | 0°C | 70°C | 284 K |
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