UPD43257B - 256K-BIT CMOS STATIC RAM 32K-WORD BY 8-BIT
UPD43257B 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 Part number Access time ns (MAX.) Operating supply Operating ambient voltage V temperature °C 0 to 70 At operating mA