M27W401 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'M27W401' PDF : 23 Pages View PDF
DC and AC parameters
M27W401
TA = 25 °C; VCC = 6.25V ± 0.25V; VPP = 12.75V ± 0.25V
Table 10. Programming Mode AC Characteristics (1)
Symbol
Alt
Parameter
Test Condition Min.
tAVPL
tAS Address Valid to Program Low
2
tQVPL
tDS Input Valid to Program Low
2
tVPHPL
tVPS VPP High to Program Low
2
tVCHPL
tVCS VCC High to Program Low
2
tELPL
tCES Chip Enable Low to Program Low
2
tPLPH
tPW Program Pulse Width
95
tPHQX
tDH Program High to Input Transition
2
tQXGL
tOES Input Transition to Output Enable Low
2
tGLQV
tOE Output Enable Low to Output Valid
tGHQZ (2)
tDFP Output Enable High to Output Hi-Z
0
tGHAX
tAH Output Enable High to Address Transition
0
1. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP.
2. Sampled only, not 100% tested.
Figure 9. Programming and Verify Modes AC Waveforms
Max. Unit
µs
µs
µs
µs
µs
105 µs
µs
µs
100 ns
130 ns
ns
A0-A18
Q0-Q7
VPP
VCC
E
G
tAVPL
DATA IN
tQVEL
tVPHEL
tVCHEL
tELEH
VALID
tEHQX
DATA OUT
tGLQV
tQXGL
tGHQZ
tGHAX
PROGRAM
VERIFY
AI00725
16/23
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