The IDT7130/IDT7140 are high-speed 1K x 8 Dual-Port Static RAMs. The IDT7130 is designed to be used as a stand-alone 8-bit Dual-Port RAM or as a 'MASTER' Dual-Port RAM together with the IDT7140 'SLAVE' Dual-Port in 16-bit-or-more word width systems. Using the IDT MASTER/SLAVE Dual-Port RAM approach in 16-or-more-bit memory system applications results in full-speed, error-free operation without the need for additional discrete logic.
The IDT7130SA/LA and IDT7140SA/LA are 1 K × 8‑bit dual‑port static RAMs designed for high‑speed applications. The IDT7130 can operate as a stand‑alone master or as a master in a master‑slave configuration with the IDT7140 slave, allowing word‑width expansion beyond 8 bits. Both devices support independent asynchronous access on two ports, include interrupt capability, and offer low‑power operation with optional battery‑backup versions (LA).
The datasheet provides detailed electrical characteristics, timing diagrams, pin configurations, and packaging options (48‑pin DIP, PLCC, TQFP, etc.). It also describes busy‑logic arbitration, data‑retention behavior for the LA versions, and ordering information, making it a comprehensive reference for designers integrating these RAMs into military or commercial systems.
| Access time (commercial) | 20 ns |
|---|---|
| Active power consumption (typical) | 550 mW |
| Standby power consumption (typical, commercial) | 5 mW |
| Standby power consumption (typical, low‑power LA) | 1 mW |
| Operating temperature range (commercial) | 0 °C to +70 °C |
| Operating temperature range (military) | -55 °C to +125 °C |
| Data retention voltage (LA version) | 2.0 V |
| Package options | 48‑pin DIP, 48‑pin side‑braze DIP, 48‑pin LCC, 48‑pin ceramic flat‑pack, 52‑pin PLCC, 64‑pin TQFP, 64‑pin STQFP |
The LA version consumes about 1 mW in standby mode.
The military‑grade part operates from –55 °C to +125 °C.
Data retention is maintained with a 2.0 V supply when the chip is not selected.
Typical active power consumption is 550 mW.