Description
The µPD43257B is a high speed, low power, and 262,144 bits (32,768 words by 8 bits) CMOS static RAM. Battery backup is available. And the µPD43257B has two chip enable pins (/CE1, CE2) to extend the capacity. The µPD43257B is packed in 28-pin plastic DIP and 28-pin plastic SOP.

FEATUREs
• 32,768 words by 8 bits organization
• Fast access time: 70, 85 ns (MAX.)
• Low VCC data retention: 2.0 V (MIN.)
• Two Chip Enable inputs: /CE1, CE2