UPD43256B Datasheet - NEC

UPD43256B 256K-BIT CMOS STATIC RAM 32K-WORD BY 8-BIT

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.

UPD43256B 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 Operating supply voltage V 4.5 to

UPD43256B_NEC.pdf