WE128K32N-140G4QA Просмотр технического описания (PDF) - White Electronic Designs => Micro Semi

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WE128K32N-140G4QA

128Kx32 EEPROM MODULE, SMD 5962-94585

White Electronic Designs => Micro Semi 

DATA POLLING

The WE128K32-XXX offers a data polling feature which allows

a faster method of writing to the device. Figure 8 shows the

timing diagram for this function. During a byte or page write

cycle, an attempted read of the last byte written will result in

the complement of the written data on D7 (for each chip.) Once

the write cycle has been completed, true data is valid on all

outputs and the next cycle may begin. Data polling may begin

at any time during the write cycle.

DATA POLLING CHARACTERISTICS

(VCC = 5.0V, VSS = 0V, TA = -55°C to +125°C)

Parameter

Data Hold Time

OE Hold Time

OE To Output Valid

Write Recovery Time

Symbol Min Max Unit

tDH

10

ns

tOEH

10

ns

tOE

55 ns

tWR

0

ns

FIG. 8

DATA POLLING

WAVEFORMS

WE1-4

CS1-4

OE

I/O7 t DH

t OEH

t OE

HIGH Z

ADDRESS

WE128K32-XXX

t WR

7

White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com

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