UPD442000A-X datasheet(7/28 Pages) NEC

Part #	UPD442000A-X

Description	2M-BIT CMOS STATIC RAM 256K-WORD BY 8-BIT EXTENDED TEMPERATURE OPERATION

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Manufacturer	NEC [NEC]

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Data Sheet M14669EJ7V0DS

7

µµµµPD442000A-X

DC Characteristics (Recommended Operating Conditions Unless Otherwise Noted) (1/2)

Parameter

Symbol

Test condition

-BB55X, -BB70X, -BB85X

Unit

MIN.

TYP.

MAX.

Input leakage current

ILI

VIN = 0 V to VCC

–1.0

+1.0

µA

I/O leakage current

ILO

VI/O = 0 V to VCC, /CE1 = VIH or

–1.0

+1.0

µA

CE2 = VIL or /WE = VIL or /OE = VIH

Operating supply current

ICCA1

/CE1 = VIL, CE2 = VIH,

Cycle time = 55 ns

–

35

mA

Minimum cycle time,

Cycle time

≥ 70 ns

–

30

II/O = 0 mA

ICCA2

/CE1 = VIL, CE2 = VIH,–

4

Cycle time =

∞, II/O = 0 mA

ICCA3

/CE1

≤ 0.2 V, CE2 ≥ VCC – 0.2 V,

–

4

Cycle time = 1

µs, II/O = 0 mA,

VIL

≤ 0.2 V, VIH ≥ VCC – 0.2 V

Standby supply current

ISB

/CE1 = VIH or CE2 = VIL

–0.35

mA

ISB1

/CE1

≥ VCC – 0.2 V, CE2 ≥ VCC – 0.2 V

0.1

2

µA

ISB2

CE2

≤ 0.2 V

0.1

2

High level output voltage

VOH

IOH = –0.5 mA

2.4

V

Low level output voltage

VOL

IOL = 1.0 mA

0.4

V

Remarks 1. VIN : Input voltage

VI/O : Input / Output voltage

2. These DC characteristics are in common regardless of product classification.

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