M48T248Y-85PM1(2003) 查看數據表（PDF） - STMicroelectronics
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M48T248Y-85PM1 Datasheet PDF : 24 Pages
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M48T248Y, M48T248V
Table 7. Memory AC Characteristics, M48T248Y
Symbol
Parameter(1)
M48T248Y–70
Unit
Min
Max
tAVAV
tRC READ Cycle Time
70
ns
tAVQV
tACC Access Time
70
ns
tELQV
tCO Chip Enable Low to Output Valid
70
ns
tGLQV
tOE Output Enable Low to Output Valid
35
ns
tELQX
tGLQX
tCOE Chip Enable or Output Enable Low to Output Transition
5
ns
tAXQX
tOH Output Hold from Address Change
5
ns
tEHQZ
tGHQZ
tOD(2) Chip Enable or Output Enable High to Output Hi-Z
25
ns
tWLQZ tODW(2) Output Hi-Z from WE
25
ns
tAVAV
tWC WRITE Cycle Time
70
ns
tWLWH
tELEH
tWP(3) WE, CE Pulse Width
50
ns
tAVEL
tAVWL
tAW Address Setup Time
0
ns
tEHAX
tWR1 WRITE Recovery Time
15
ns
tWHAX
tWR2 Address Hold Time from WE
0
ns
tWHQX
tOEW Output Active from WE
5
ns
tDVEH
tDVWH
tDS(4) Data Setup Time
30
ns
tWHDX
tDH1(4) Data Hold Time from WE
0
ns
tEHDX
tDH2(4) Data Hold Time from CE
10
ns
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 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. tDH and tDS are measured from the earlier of CE or WE going high.
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