The 4M x 36-Bit EDO - DRAM Module HYM364025S/GS-50/-60 is a SIMM module with 4 194 304 words x 36-Bit organization for PC main memory applications. It has fast access and cycle time, high performance Hyper Page Mode (EDO) function, single +5 V (± 10 %) supply and low power dissipation. In addition, it has CAS-before-RAS refresh, RAS-only-refresh implicit refresh, decoupling capacitors mounted on substrate, all inputs, outputs and clocks fully compatible TTL, 72 pin single in-line memory module (L-SIM-72-12) with 22.9 mm (900 mil) height, uses eight 4Mx4-EDO-DRAMs and four 4Mx1-EDO-DRAMs in SOJ packages, 2048 refresh cycles / 32 ms and optimized for use in byte-write parity applications.
The Siemens HYM364025S/GS-50/-60 is a 4 M × 36‑bit (16 MByte) EDO DRAM module offered in 50 ns and 60 ns access‑time versions. It uses eight 4 M × 4 EDO‑DRAMs and four 4 M × 1 EDO‑DRAMs mounted on a 72‑pin SIMM (L‑SIM‑72‑12) package.
The datasheet provides electrical characteristics, timing parameters, power consumption, and package dimensions, along with ordering information for both the standard (S) and gold‑plated (GS) versions.
| Capacity | 4 M × 36‑bit (16 MByte) |
|---|---|
| Access time | 50 ns (‑50 version) / 60 ns (‑60 version) |
| Cycle time | 84 ns (‑50 version) / 104 ns (‑60 version) |
| Active power dissipation | max 6820 mW (‑50) / 6160 mW (‑60) |
| Standby power | CMOS 66 mW, TTL 132 mW |
It is a 72‑pin Single In‑Line Memory Module (L‑SIM‑72‑12).
The module operates from 0 °C to +70 °C.
The module uses eight 4 M × 4 EDO‑DRAMs and four 4 M × 1 EDO‑DRAMs.