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©

2000

2M-BIT CMOS STATIC RAM

256K-WORD BY 8-BIT

EXTENDED TEMPERATURE OPERATION

MOS INTEGRATED CIRCUIT

DATA SHEET

Document No. M14669EJ7V0DS00 (7th edition)

Date Published October 2002 NS CP (K)

Printed in Japan

The mark 5

5

5

5 shows major revised points.

Description

The

µPD442000A-X is a high speed, low power, 2,097,152 bits (262,144 words by 8 bits) CMOS static RAM.

The

µPD442000A-X has two chip enable pins (/CE1, CE2) to extend the capacity. And battery backup is available.

The

µPD442000A-X is packed in 32-pin PLASTIC TSOP (I) (Normal bent) and 32-pin PLASTIC TSOP (I) (Reverse

bent).

Features

• 262,144 words by 8 bits organization

• Fast access time : 55, 70, 85, 100, 120 ns (MAX.)

• Output Enable input for easy application

• Two Chip Enable inputs : /CE1, CE2

µPD442000A

Access time

Operating supply Operating ambient

Supply current

ns (MAX.)

voltage

temperature

At operating

At standby

At data retention

V°C

mA (MAX.)

µA (MAX.)

µA (MAX.)

-BB55X, -BB70X, -BB85X

55, 70, 85

2.7 to 3.6

−25 to +85

30

Note

21

-BC70X, -BC85X, -BC10X

70, 85, 100

2.2 to 3.6

30

-DD85X, -DD10X, -DD12X

85, 100, 120

1.8 to 2.2

15

1.5

Note Cycle time

≥ 70 ns, -BB55X : 35 mA