"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