UPD431000ACZ-70

Description:

The UPD431000A is a high speed, low power, and 1,048,576 bits (131,072 words by 8 bits) CMOS static RAM. The UPD431000A 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 UPD431000A 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: V CC = 3.0 to 5.5 V, B version: V CC = 2.7 to 5.5 V)
• Operating ambient temperature: T A = 0 to 70 ° C
• Low V CC data retention: 2.0 V (MIN.)
• Output Enable input for easy application
• Two Chip Enable inputs: /CE1, CE2

Block Diagram: