Cypress CY7C185 specifications Capacitance4, AC Test Loads and Waveforms, = Gnd

Page 3

CY7C185

Electrical Characteristics Over the Operating Range (continued)

 

 

 

 

 

 

7C185–25

7C185-35

 

 

 

 

 

 

 

 

 

 

Parameter

Description

 

Test Conditions

Min.

Max.

Min.

Max.

Unit

 

 

 

 

 

 

 

 

VOH

Output HIGH Voltage

VCC = Min., IOH = –4.0 mA

2.4

 

2.4

 

V

VOL

Output LOW Voltage

VCC = Min., IOL = 8.0 mA

 

0.4

 

0.4

V

VIH

Input HIGH Voltage

 

 

 

 

2.2

VCC +

2.2

VCC +

V

 

 

 

 

 

 

 

0.3V

 

0.3V

 

 

 

 

 

 

 

 

 

 

 

 

VIL

Input LOW Voltage[2]

 

 

 

 

–0.5

0.8

–0.5

0.8

V

IIX

Input Load Current

GND VI VCC

–5

+5

–5

+5

μA

IOZ

Output Leakage

GND VI VCC,

–5

+5

–5

+5

μA

 

Current

Output Disabled

 

 

 

 

 

 

 

 

 

 

 

 

 

IOS

Output Short

VCC = Max.,

 

–300

 

–300

mA

 

Circuit Current[3]

V

= GND

 

 

 

 

 

 

 

OUT

 

 

 

 

 

 

 

 

ICC

VCC Operating

VCC = Max.,

 

100

 

100

mA

 

Supply Current

IOUT = 0 mA

 

 

 

 

 

ISB1

Automatic

Max. VCC,

 

1 VIH or CE2 VIL

 

20

 

20

mA

CE

 

 

 

Power-Down Current

Min. Duty Cycle=100%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ISB2

Automatic

Max. VCC,

 

1 VCC – 0.3V

 

15

 

15

mA

CE

 

 

 

Power-Down Current

or CE2 0.3V

 

 

 

 

 

 

 

VIN VCC – 0.3V or VIN 0.3V

 

 

 

 

 

Capacitance[4]

Parameter

Description

Test Conditions

Max.

Unit

 

 

 

 

 

CIN

Input Capacitance

TA = 25°C, f = 1 MHz,

7

pF

 

 

VCC = 5.0V

 

 

COUT

Output Capacitance

7

pF

Note:

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

AC Test Loads and Waveforms

5V

R1 481 Ω

 

OUTPUT

 

30 pF

R2

INCLUDING

255Ω

 

JIG AND

 

SCOPE (a)

5V

R1 481 Ω

 

 

 

OUTPUT

 

3.0V

 

 

5 pF

R2

10%

INCLUDING

255Ω

GND

 

5 ns

JIGAND

 

SCOPE (b)

C185–4

 

ALL INPUT PULSES

90%

 

90%

 

 

 

 

10%

 

 

 

5 ns

C185–5

Equivalent to:

THÉVENIN EQUIVALENT

167Ω

OUTPUT 1.73V

3

Image 3
Contents Selection Guide1 FeaturesLogic Block Diagram Pin Configurations Functional DescriptionAmbient Range Electrical Characteristics Over the Operating RangeMaximum Ratings Operating RangeParameter Description Test Conditions Max Unit Capacitance4AC Test Loads and Waveforms = GNDCE2 Switching Characteristics Over the Operating Range5Switching Waveforms Read Cycle No.19,10Write Cycle No WE Controlled10,12 Write Cycle No WE Controlled, OE LOW12,13,14,15 Write Cycle No CE Controlled12,13,14Normalized Supply Current Typical DC and AC CharacteristicsTruth Table Address DesignatorsOrdering Information Package Diagrams Lead 300-Mil Molded DIP P21Lead 300-Mil Molded Soic S21 Lead 300-Mil Molded SOJ