The IDT7203/7204/7205/7206 are dual-port memory buffers with internal pointers that load and empty data on a first-in/first-out basis.
The IDT7203/7204/7205/7206 family are dual‑port FIFO memory buffers with 9‑bit wide data paths, offering 2048, 4096, 8192 or 16384 word depths. They support asynchronous read/write operations, status flags (Empty, Half‑Full, Full) and a retransmit capability. The devices are built in high‑speed CMOS technology and meet military MIL‑STD‑883 Class B requirements.
The datasheet details pin assignments, absolute maximum ratings, recommended operating conditions, and extensive timing tables for both commercial (0 °C to +70 °C) and military (‑55 °C to +125 °C) temperature ranges. It also describes single‑device, depth‑expansion, width‑expansion, and bidirectional usage modes, along with guidelines for cascading multiple devices.
| Organization (IDT7203) | 2048 × 9 |
|---|---|
| Organization (IDT7204) | 4096 × 9 |
| Access time | 12 ns |
| Active power consumption | 770 mW (max) |
| Power‑down consumption | 44 mW (max) |
| Industrial temperature range | -40 °C to +85 °C |
| Supply voltage (commercial) | 5.0 V ± 10 % |
| Data bus width | 9 bits (8 data + 1 control/parity) |
The FIFO provides a typical access time of 12 ns.
The device includes Empty, Half‑Full, and Full flags.
Active power consumption is up to 770 mW.
A supply voltage of 5.0 V ± 10 % is recommended for commercial use.