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©

1990, 1993, 1995

MOS INTEGRATED CIRCUIT

1M-BIT CMOS STATIC RAM

128K-WORD BY 8-BIT

DATA SHEET

Document No. M11657EJBV0DS00 (11th edition)

Date Published April 2002 NS CP (K)

Printed in Japan

The mark 5 shows major revised points.

Description

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

Features

• 131,072 words by 8 bits organization

• Fast access time: 70, 85, 100, 120, 150 ns (MAX.)

• Output Enable input for easy application

• Two Chip Enable inputs: /CE1, CE2

Part number

Access time

Operating supply Operating ambient

Supply current

ns (MAX.)

voltage

temperature

At operating

At standby

At data retention

V

°C

mA (MAX.)

Note1

70, 85

4.5 to 5.5

0 to 70

70

100

15

20

3

70

3.0 to 5.5

35

Note3

13

Note5

70

2.7 to 5.5

30

Note4

11

Note6

≤ 40 °C

5. 20

6. 20