| PartNumber | M48T35Y-70MH1F | M48T35Y-70MH1E | M48T35Y-70MH6E |
| Description | Real Time Clock 256K (32Kx8) 70ns | Real Time Clock 256K (32Kx8) 70ns | IC RTC CLK/CALENDAR PAR 28SOH |
| Manufacturer | STMicroelectronics | STMicroelectronics | - |
| Product Category | Real Time Clock | Real Time Clock | - |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | SO-28 | SO-28 | - |
| RTC Bus Interface | Parallel | Parallel | - |
| Time Format | HH:MM:SS | HH:MM:SS | - |
| Battery Backup Switching | Backup Switching | Backup Switching | - |
| RTC Memory Size | 256 kB | 32 kB | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Supply Voltage Min | 4.5 V | 4.5 V | - |
| Minimum Operating Temperature | 0 C | 0 C | - |
| Maximum Operating Temperature | + 70 C | + 70 C | - |
| Packaging | Reel | Tube | - |
| Function | Calendar, Clock, NV Timekeeping, Watchdog Timer | Calendar, Clock, NV Timekeeping, Watchdog Timer | - |
| Product | Real Time Clocks | - | - |
| Series | M48T35Y | M48T35Y | - |
| Brand | STMicroelectronics | STMicroelectronics | - |
| Moisture Sensitive | Yes | Yes | - |
| Product Type | Real Time Clock | Real Time Clocks | - |
| Factory Pack Quantity | 936 | 28 | - |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | - |
| Unit Weight | 0.078125 oz | 0.078125 oz | - |
| Date Format | - | DW:DM:M:Y | - |