M28010 datasheet(12/23 Pages) STMICROELECTRONICS

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M28010

12/23

Table 9A. Write Mode AC Characteristics for M28010 (5V range)

(TA = –40 to 85 °C; VCC = 4.5 to 5.5 V)

Symbol

Alt.

Parameter

Test Condit ion

M28010

Unit

Min

Max

tAVWL

tAS

Address Valid to Write Enable Low

E = VIL,G = VIH

0ns

tAVEL

tAS

Address Valid to Chip Enable Low

G= VIH,W= VIL

0ns

tELWL

tCES

Chip Enable Low to Write Enable Low

G = VIH

0ns

tGHWL

tOES

Output Enable High to Write Enable Low

E= VIL

0ns

tGHEL

tOES

Output Enable High to Chip Enable Low

W= VIL

0ns

tWLEL

tWES

Write Enable Low to Chip Enable Low

G= VIH

0ns

tWLAX

tAH

Write Enable Low to Address Transition

tELAX

tAH

Chip Enable Low to Address Transition

tELEH

tWP

Chip Enable Low to Chip Enable High

100

tWHEH

tCEH

Write Enable High to Chip Enable High

tWHGL

tOEH

Write Enable High to Output Enable Low

tEHWH

tWEH

Chip Enable High to Write Enable High

tWHDX

tDH

Write Enable High to Input Transition

tEHDX

tDH

Chip Enable High to Input Transition

tWHWL

tWPH

Write Enable High to Write Enable Low

tWLWH

tWP

Write Enable Low to Write Enable High

100

tWLQ5H

tBLC

Time-out after the last byte write

150

µs

tQ5HQ5X

tWC

Byte Write Cycle time

Page Write Cycle time (up to 128 bytes)

tDVWH

tDS

Data Valid before Write Enable High

tDVEH

tDS

Data Valid before Chip Enable High

Figure 11. Read Mode AC Waveforms (with Write Enable, W, high)

Note: 1. Write Enable (W) = VIH

AI02229

VALID

tAVQV

tAXQX

tGLQV

tEHQZ

tGHQZ

DATA OUT

A0-A16

DQ0-DQ7

tELQV

Hi-Z

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