CY7C144-55JI datasheet(5/20 Pages) CYPRESS

Part #	CY7C144-55JI

Description	8K x 8/9 Dual-Port Static RAM with SEM, INT, BUSY

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Manufacturer	CYPRESS [Cypress Semiconductor]

Direct Link	http://www.cypress.com

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CY7C144

CY7C145

Document #: 38-06034 Rev. *C

Page 5 of 20

Electrical Characteristics Over the Operating Range (continued)

Parameter

Description

Test Conditions

7C144-35

7C145-35

7C144-55

7C145-55

Unit

Min.

Max.

Min.

Max.

VOH

Output HIGH Voltage

VCC = Min., IOH = −4.0 mA

2.4

V

VOL

Output LOW Voltage

VCC = Min., IOL = 4.0 mA

0.4

V

VIH

Input HIGH Voltage

2.2

V

VIL

Input LOW Voltage

0.8

V

IIX

Input Leakage Current

GND < VI < VCC

−10

+10

−10

+10

µA

IOZ

Output Leakage Current

Outputs Disabled, GND < VO < VCC

−10

+10

−10

+10

µA

ICC

Operating Current

VCC = Max., IOUT = 0 mA

Outputs Disabled

Com’l

160

mA

Ind

180

ISB1

Standby Current

(Both Ports TTL Levels)

CEL and CER > VIH,

f = fMAX[7]

Com’l

30

mA

Ind

40

ISB2

Standby Current

(One Port TTL Level)

CEL or CER > VIH,

f = fMAX[7]

Com’l

100

mA

Ind

110

ISB3

Standby Current

(Both Ports CMOS Levels)

Both Ports

CE and CER > VCC – 0.2V,

VIN > VCC – 0.2V

or VIN < 0.2V, f = 0[7]

Com’l

15

mA

Ind

30

ISB4

Standby Current

(One Port CMOS Level)

One Port

CEL or CER > VCC – 0.2V,

VIN > VCC – 0.2V or

VIN < 0.2V, Active

Port Outputs, f = fMAX[7]

Com’l

90

mA

Ind

100

Capacitance[8]

Parameter

Description

Test Conditions

Max.

Unit

CIN

Input Capacitance

TA = 25°C, f = 1 MHz,

VCC = 5.0V

10

pF

COUT

Output Capacitance

15

pF

Note:

8. Tested initially and after any design or process changes that may affect these parameters.

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