M40SZ100Y datasheet(11/25 Pages) STMICROELECTRONICS

11 / 25 page

M40SZ100Y, M40SZ100W

Operation

11/25

Figure 7.

Power up timing

Table 2.

Power down/up AC characteristics

Symbol

Parameter(1)

Valid for ambient operating temperature: TA = –40 to 85°C; VCC = 2.7 to 3.6V or 4.5 to 5.5V(except where noted).

Min

Max

Unit

(2)

VPFD (max) to VPFD (min) fall time of less than tF may result in deselection/write protection not occurring until 200 µs after

VCC passes VPFD (min).

VPFD (max) to VPFD (min) VCC fall time

300

µs

tFB

(3)

VPFD (min) to VSS fall time of less than tFB may cause corruption of RAM data.

VPFD (min) to VSS VCC fall time

µs

tPFD

PFI to PFO propagation delay

µs

VPFD(min) to VPFD (max) VCC rise time

µs

tEPD

Chip enable propagation delay (low or high)

M40SZ100Y

M40SZ100W

tRB

VSS to VPFD (min) VCC rise time

µs

tCER

Chip enable recovery

120

tREC

VPFD (max) to RST high

200

tWPT

Write protect time

200

µs

AI03937

VCC

ECON

tCER

VOHB

VPFD (max)

VPFD (min)

VSO

VPFD

tEPD

RST

tREC

tRB

VALID

PFO

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