Product Summary

The μPD43256B is a high speed, low power, and 262, 144 bits (32,768 words by 8 bits) CMOS static RAM.
Battery backup is available (L, LL, A, and B versions). And A and B versions are wide voltage operations.
The μPD43256B is packed in 28-pin plastic DIP, 28-pin plastic SOP and 28-pin plastic TSOP (I).

Features

32,768 words by 8 bits organization
? Fast access time: 70, 85, 100, 120, 150 ns (MAX.)
? Wide voltage range (A version: VCC= 3.0 to 5.5 V, B version: VCC= 2.7 to 5.5 V)
? 2 V data retention
? OE input for easy application