CY62167EV18 MoBL®

Switching Waveforms (continued)

Figure 9 shows BHE/BLE controlled, OE LOW write cycle waveforms.[22]

Figure 9. Write Cycle No. 4

 

 

tWC

 

ADDRESS

 

 

 

CE1

 

 

 

CE2

 

tSCE

 

 

 

 

 

tAW

 

tHA

BHE/BLE

 

tBW

 

 

 

 

 

tSA

 

 

WE

 

tPWE

 

 

 

tSD

tHD

DATA IO

NOTE 23

VALID DATA

 

Truth Table

CE1

CE2

WE

OE

BHE

BLE

Inputs/Outputs

Mode

Power

H

X

X

X

X

X

High Z

Deselect / Power Down

Standby (ISB)

X

L

X

X

X

X

High Z

Deselect / Power Down

Standby (ISB)

X

X

X

X

H

H

High Z

Deselect / Power Down

Standby (ISB)

L

H

H

L

L

L

Data Out (I/O0–I/O15)

Read

Active (ICC)

L

H

H

L

H

L

Data Out (I/O0–I/O7);

Read

Active (ICC)

 

 

 

 

 

 

High Z (I/O8–I/O15)

 

 

L

H

H

L

L

H

High Z (I/O0–I/O7);

Read

Active (ICC)

 

 

 

 

 

 

Data Out (I/O8–I/O15)

 

 

L

H

H

H

L

H

High Z

Output Disabled

Active (ICC)

L

H

H

H

H

L

High Z

Output Disabled

Active (ICC)

L

H

H

H

L

L

High Z

Output Disabled

Active (ICC)

L

H

L

X

L

L

Data In (I/O0–I/O15)

Write

Active (ICC)

L

H

L

X

H

L

Data In (I/O0–I/O7);

Write

Active (ICC)

 

 

 

 

 

 

High Z (I/O8–I/O15)

 

 

L

H

L

X

L

H

High Z (I/O0–I/O7);

Write

Active (ICC)

 

 

 

 

 

 

Data In (I/O8–I/O15)

 

 

Document #: 38-05447 Rev. *G

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Cypress CY62167EV18 manual Truth Table, CE1 CE2 BHE BLE, Inputs/Outputs Mode Power