IDT70121S Overview
The IDT70121/IDT70125 are high-speed 2K x 9 Dual-Port Static RAMs. The IDT70121 is designed to be used as a stand-alone 9-bit Dual-Port RAM or as a “MASTER” Dual-Port RAM together with the IDT70125 “SLAVE” Dual-Port in 18bit-or-more word width systems. Using the IDT MASTER/ SLAVE Dual-Port RAM approach in 18-bit-or-wider memory system applications results in full-speed, error-free operation without the need for...
IDT70121S Key Features
- High-speed access
- mercial: 25/35/45/55ns (max.)
- Low-power operation
- IDT70121/70125S Active: 500mW (typ.) Standby: 5mW (typ.)
- IDT70121/70125L Active: 500mW (typ.) Standby: 1mW (typ.)
- Fully asychronous operation from either port
- MASTER IDT70121 easily expands data bus width to 18 bits or more using SLAVE IDT70125 chip
- On-chip port arbitration logic (IDT70121 only)
- BUSY output flag on Master; BUSY input on Slave
- INT flag for port-to-port munication