| 型号 | 概述 |
| M48T02 | TIMEKEEPER SRAM |
| M48T08 | TIMEKEEPER SRAM |
| M48T08Y | TIMEKEEPER SRAM |
| M48T12 | TIMEKEEPER SRAM |
| M48T18 | TIMEKEEPER SRAM |
| M48T201V | TIMEKEEPER SUPERVISOR |
| M48T201Y | TIMEKEEPER SUPERVISOR |
| M48T35 | TIMEKEEPER SRAM |
| M48T35AV | TIMEKEEPER SRAM |
| M48T35Y | TIMEKEEPER SRAM |
| M48T37V | TIMEKEEPER SRAM |
| M48T37Y | TIMEKEEPER SRAM |
| M48T58 | TIMEKEEPER SRAM |
| M48T58Y | TIMEKEEPER SRAM |