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 dual‑port static RAM devices offering independent asynchronous access on two ports. The MASTER (7130) can expand bus width with a SLAVE (7140) for 16‑bit or wider configurations, includes on‑chip arbitration, BUSY signaling and optional interrupt mail‑box registers. Low‑power (LA) versions provide battery‑backed data retention at 2 V.
Key specifications include fast access times (as low as 20 ns in commercial PLCC/TQFP), typical active power of 550 mW, standby power as low as 5 mW (LA) or 1 mW (LA), and operation over an industrial temperature range of –40 °C to +85 °C (commercial) or –55 °C to +125 °C (military). The parts are offered in multiple 48‑pin and 64‑pin packages and comply with MIL‑STD‑883 Class B.
| Maximum access time (military) | 25 ns |
|---|---|
| Maximum access time (commercial) | 20 ns (7130 PLCC/TQFP) |
| Active power consumption (typical) | 550 mW |
| Standby power consumption (LA version, typical) | 5 mW |
| Data retention voltage (LA version) | 2 V |
| Operating temperature range (military) | ‑55 °C to +125 °C |
The LA version consumes about 5 mW in standby mode.
Data is retained at a supply voltage of 2 V.