Memory Size: 64 (16 x 4), Function: Asynchronous, Data Rate: 28MHz, Access Time: 40ns, Voltage - Supply: 4.5V ~ 5.5V,
Memory Size: 64 (16 x 4), Function: Asynchronous, Data Rate: 36MHz, Access Time: 34ns, Voltage - Supply: 2V ~ 6V,