The AMD AM7203A-50RC is a 2K x 9 asynchronous FIFO memory with a 50 ns access time and a 15.3 MHz data rate. It provides 18 Kbit of elastic buffering for data-flow applications where the read and write clocks are not synchronized — no external clock or PLL required, just read and write strobes. Typical uses include printer buffers, serial data queues, and rate-matching between peripherals and a host bus in commercial-temperature (0°C to 70°C) equipment such as office automation and telecom line cards.
Retransmit capability and expansion
The retransmit capability allows the FIFO to re-read data from a reset pointer without clearing the entire buffer — useful in retry protocols or data-replay loops. Depth and width expansion are supported, so the part can be cascaded for larger buffers. Note that programmable flags and FWFT (First-Word Fall-Through) are not supported; the flag set is fixed to empty/full/half-full.
Package and temperature — legacy through-hole fit
The 28-pin DIP (0.300", 7.62 mm) through-hole package suits boards with DIP sockets or wave soldering.
No end-of-life notice is in effect. The AM7203A-50RC is RoHS non-compliant (lead-bearing), so verify your assembly process if RoHS exemption is required.