Product Summary

The μPD431000A is a high speed, low power, and 1,048,576 bits (131,072 words by 8 bits) CMOS static RAM.
The μPD431000A has two chip enable pins (/CE1, CE2) to extend the capacity. And battery backup is available. In
addition to this, A and B versions are low voltage operations.
The μPD431000A is packed in 32-pin PLASTIC DIP, 32-pin PLASTIC SOP and 32-pin PLASTIC TSOP (I) (8 ×13.4
mm) and (8 ×20 mm).

Features

?131,072 words by 8 bits organization
?Fast access time: 70, 85, 100, 120, 150 ns (MAX.)
?Low voltage operation (A version: VCC= 3.0 to 5.5 V, B version: VCC= 2.7 to 5.5 V)
?Operating ambient temperature: TA= 0 to 70 °C
?Low VCC data retention: 2.0 V (MIN.)
? Output Enable input for easy application
? Two Chip Enable inputs: /CE1, CE2