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M27C256B-10B1 View Datasheet(PDF) - STMicroelectronics

Part NameM27C256B-10B1 ST-Microelectronics
STMicroelectronics ST-Microelectronics
Description256 Kbit (32Kb × 8) UV EPROM and OTP EPROM
M27C256B-10B1 Datasheet PDF : 24 Pages
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DC and AC parameters
M27C256B
Figure 8. Programming and Verify modes AC waveforms
A0-A14
tAVEL
VALID
Q0-Q7
DATA IN
DATA OUT
tQVEL
tEHQX
VPP
VCC
tVPHEL
tGLQV
tGHQZ
tVCHEL
) E
t(s tELEH
uc G
tQXGL
tGHAX
Prod PROGRAM
VERIFY
AI00759
lete Table 11. Programming mode AC characteristics(1) (2)
so Symbol Alt
Parameter
Test
Condition
Min
Max Unit
Ob tAVEL tAS Address Valid to Chip Enable Low
) - tQVEL tDS Input Valid to Chip Enable Low
t(s tVPHEL tVPS VPP High to Chip Enable Low
c tVCHEL tVCS VCC High to Chip Enable Low
du tELEH tPW Chip Enable Program Pulse Width
ro tEHQX tDH Chip Enable High to Input Transition
P tQXGL tOES Input Transition to Output Enable Low
letetGLQV tOE Output Enable Low to Output Valid
o tGHQZ tDFP Output Enable High to Output Hi-Z
bs tGHAX tAH Output Enable High to Address Transition
O 1. TA = 25 °C; VCC = 6.25V ± 0.25V; VPP = 12.75V ± 0.25V.
2
µs
2
µs
2
µs
2
µs
95 105 µs
2
µs
2
µs
100 ns
0
130 ns
0
ns
2. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP.
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