M48T248Y datasheet(19/24 Pages) STMICROELECTRONICS

tên linh kiện	M48T248Y

Giải thích chi tiết về linh kiện	5.0 or 3.3V, 1024K TIMEKEEPER SRAM with PHANTOM

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M48T248Y, M48T248V

Table 11. Phantom Clock AC Characteristics (M48T248Y)

Note: 1. Valid for Ambient Operating Temperature: TA = 0 to 70°C; VCC = 4.5 to 5.5V or 3.0 to 3.6V (except where noted).

2. These parameters are sampled with a 5 pF load and are not 100% tested.

3. tWP is specified as the logical AND of CE and WE. tWP is measured from the latter of CE or WE going low to the earlier of CE or

WE going high.

4. tWR is a function of the latter occurring edge of WE or CE.

5. tDH and tDS are measured from the earlier of CE or WE going high.

Symbol

Parameter(1)

Min

Typ

Max

Unit

tAVAV

tRC

READ Cycle Time

tELQV

tCO

CE Access Time

tGLQV

tOE

OE Access Time

tELQX

tCOE

CE to Output Low Z

tGLQX

tOEE

OE to Output Low Z

tEHQZ

tOD

(2)

CE to Output High Z

tGHQZ

tODO

(2)

OE to Output High Z

tRR

READ Recovery

tAVAV

tWC

WRITE Cycle Time

tWLWH

tWP

(3)

WRITE Pulse Width

tEHAX

tWR

(4)

WRITE Recovery

tDVEH

tDS

(5)

Data Setup Time

tWHDX

tDH1

(5)

Data Hold Time from WE

0ns

tEHDX

tDH2

(5)

Data Hold Time from CE

0ns

tELEH

tCW

CE Pulse Width

tRST

RST Pulse Width

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