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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 7. Read mode AC waveforms
A0-A14
VALID
tAVQV
tAXQX
VALID
E
tGLQV
tEHQZ
G
tELQV
tGHQZ
Hi-Z
) Q0-Q7
AI00758B
t(s )
c Table 9.
Read mode AC characteristics(1) (2)
te Produ Symbol Alt
Parameter
M27C256B
Test
Condition
-45(3)
-60
-70
-80 Unit
Min Max Min Max Min Max Min Max
ole tAVQV
Obs tELQV
tACC
Address Valid to
Output Valid
tCE
Chip Enable Low
to Output Valid
E = VIL,
G = VIL
G = VIL
) - tGLQV
tOE
Output Enable Low
to Output Valid
E = VIL
ct(s tEHQZ(4)
tDF
Chip Enable High
to Output Hi-Z
G = VIL
rodu tGHQZ(4)
tDF
Output Enable
High to Output Hi-Z
E = VIL
te P tAXQX
Address Transition
tOH to Output
Transition
E = VIL,
G = VIL
45
60
70
80 ns
45
60
70
80 ns
25
30
35
40 ns
0 25 0 30 0 30 0 30 ns
0 25 0 30 0 30 0 30 ns
0
0
0
0
ns
ole1. TA = 0 to 70°C, –40 to 85°C, –40 to 105°C or –40 to 125°C; VCC = 5V ± 5% or 5V ± 10%; VPP = VCC
bs 2. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP.
O 3. Speed obtained with High Speed AC measurement conditions.
4. Sampled only, not 100% tested.
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