Cypress CY7C1024DV33 manual Truth Table, Switching Waveforms continued, I/O 0 - I/O, Mode, Power

Page 7
Switching Waveforms (continued)

CY7C1024DV33

Switching Waveforms (continued)

Figure 6. Write Cycle No. 2 (WE Controlled, OE HIGH During Write) [3, 16, 17]

 

 

tWC

 

ADDRESS

 

 

 

 

 

tSCE

 

CE

 

 

 

 

tAW

 

tHA

 

tSA

tPWE

 

WE

 

 

 

OE

 

 

 

 

 

tSD

t

 

 

 

HD

DATA I/O

NOTE 18

DATAIN VALID

 

 

tHZOE

 

 

Figure 7. Write Cycle No. 3 (WE Controlled, OE LOW) [3, 17]

 

 

tWC

 

ADDRESS

 

 

 

 

 

tSCE

 

CE

 

 

 

 

tAW

 

tHA

 

tSA

tPWE

 

WE

 

 

 

 

 

tSD

tHD

DATA I/O

NOTE 18

DATA VALID

 

 

tHZWE

 

tLZWE

Truth Table

CE1

CE2

CE3

OE

WE

I/O0 – I/O23

Mode

Power

H

X

X

X

X

High Z

Power Down

Standby (ISB)

X

L

X

X

X

High Z

Power Down

Standby (ISB)

X

X

H

X

X

High Z

Power Down

Standby (ISB)

L

H

L

L

H

Full Data Out

Read

Active (ICC)

L

H

L

X

L

Full Data In

Write

Active (ICC)

L

H

L

H

H

High Z

Selected, Outputs Disabled

Active (ICC)

Note

18. During this period, the I/Os are in the output state and input signals are not applied.

Document Number: 001-08353 Rev. *C

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Contents Functional Description FeaturesLogic Block Diagram CY7C1024DV33Unit Pin ConfigurationSelection Guide DescriptionCapacitance DC Electrical CharacteristicsMaximum Ratings Operating RangeFigure 2. AC Test Loads and Waveform4 AC Switching CharacteristicsParameter Read Cycle Conditions AC Switching Characteristics continuedData Retention Characteristics Data Retention WaveformFigure 5. Write Cycle No. 1 CE Controlled 3, 16 Switching WaveformsFigure 3. Read Cycle No. 1 Address Transition Controlled 13 Figure 4. Read Cycle No. 2 OE Controlled 3, 14Figure 6. Write Cycle No. 2 WE Controlled, OE HIGH During Write 3, 16 Switching Waveforms continuedPower Truth TableOrdering Code Package DiagramOrdering Information SpeedDocument Number Sales, Solutions, and Legal InformationDocument History Page Document Title CY7C1024DV33, 3-Mbit 128K X 24 Static RAM