M27C4002 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'M27C4002' PDF : 24 Pages View PDF
M27C4002
DC and AC parameters
Table 12. Programming Mode AC Characteristics(1)(2)(3)
Symbol Alt
Parameter
Test Condition
Min
Max Unit
tAVEL
tAS Address Valid to Chip Enable Low
2
µs
tQVEL
tDS Input Valid to Chip Enable Low
2
µs
tVPHEL
tVPS VPP High to Chip Enable Low
2
µs
tVCHEL
tVCS VCC High to Chip Enable Low
2
µs
tELEH
tPW Chip Enable Program Pulse Width
95
105
µs
tEHQX
tDH Chip Enable High to Input Transition
2
µs
tQXGL
tOES Input Transition to Output Enable Low
2
) tGLQV
tOE Output Enable Low to Output Valid
t(s tGHQZ
tDFP Output Enable High to Output Hi-Z
0
uc tGHAX
tAH
Output Enable High to Address
Transition
0
rod 1. TA = 25 °C; VCC = 6.25V ± 0.25V; VPP = 12.75V ± 0.25V.
P 2. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP.
3. Sampled only, not 100% tested.
lete Figure 9. Programming and Verify Modes AC Waveforms
µs
100
ns
130
ns
ns
bso A0-A17
- O Q0-Q15
ct(s) VPP
rodu VCC
lete P E
Obso G
tAVEL
DATA IN
tQVEL
tVPHEL
tVCHEL
tELEH
VALID
tEHQX
DATA OUT
tGLQV
tQXGL
tGHQZ
tGHAX
PROGRAM
VERIFY
AI00730
17/24
Share Link: 
