M28W320CB datasheet(26/42 Pages) STMICROELECTRONICS

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M28W320CT, M28W320CB

26/42

Table 25. Write AC Characteristics, Chip Enable Controlled (1)

(TA =0 to 70°C or –40 to 85°C)

Note: 1. See AC Testing Measurement conditions for timi ng measurements.

2. Sampled only, not 100% tested.

3. The device Reset is possible but not guaranteed if tPLPH < 100ns.

4. The reset will complete within 100ns if RP is asserted while not in Program nor in Erase mode.

5. Applicable if VPP is seen as a logic input (VPP < 3.6V).

Symbol

Alt

Parameter

M28W320C

Unit

100

VDD = 2.7V to 3.6V

VDDQ = 2.7V min

VDD = 2.7V to 3.6V

VDDQ = 1.65V min

Min

Max

Min

Max

tAVAV

tWC

Write Cycle Time

100

tAVEH

tAS

Address Valid to Chip Enable High

tDVEH

tDS

Data Valid to Chip Enable High

tEHAX

tAH

Chip Enable High to Address Transition

tEHDX

tDH

Chip Enable High to Data Transition

tEHEL

tCPH

Chip Enable High to Chip Enable Low

tEHGL

Chip Enable High to Output Enable Low

tEHWH

tWH

Chip Enable High to Write Enable High

tELEH

tCP

Chip Enable Low to Chip Enable High

tPHEL

tPS

Reset High to Chip Enable Low

100

tPLPH

(2, 3)

tRP

Reset Pulse Width

100

tPLRH

(2, 4)

Reset Low to Program/Erase Abort

µs

tQVVPL

(2, 5)

Output Valid to VPP Low

tQVWPL

Data Valid to Write Protect Low

tVPHEH

(2)

tVPS

VPP High to Chip Enable High

200

tWLEL

tCS

Write Enable Low to Chip Enable Low

tWPHEH

Write Protect High to Chip Enable High

tAVAV

tWC

Write Cycle Time

100

tAVEH

tAS

Address Valid to Chip Enable High

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