m27512 STMicroelectronics, m27512 Datasheet - Page 6

• Manufacturer Part Number: m27512
• Description: Nmos 512k 64k X 8 Uv Eprom
• Manufacturer: STMicroelectronics

Table 9. MARGIN MODE AC Characteristics
(T
Note: 1. V
M27512
Table 10. Programming Mode AC Characteristics
(T
Notes. 1. V
6/11
Symbol
Symbol
A
t
t
t
A
t
t
t
t
t
A9HVPH
t
A10HEH
VPXA9X
t
t
EHQZ
A10LEH
EXA10X
t
VPLVPH
t
EXVPX
t
VPHEL
t
t
t
t
VCHEL
VPHEL
t
t
EHVPX
VPLEL
EHQX
= 25 C; V
QVEL
ELQV
EHAX
AVEL
ELEH
ELEH
= 25 C; V
2. The Initial Program Pulse width tolerance is 1 ms 5%.
3. The length of the Over-program Pulse varies from 2.85 ms to 78.95 ms, depending on the multiplication value of the iteration counter.
4. Sampled only, not 100% tested.
(4)
CC
CC
must be applied simultaneously with or before V
must be applied simultaneously with or before V
t
t
t
t
t
t
t
t
t
t
t
AS10
AS10
AH10
t
Alt
t
OPW
VPS
VPH
Alt
AS9
AH9
t
t
VCS
OES
t
OEH
t
t
t
t
PRT
PW
CC
AS
DS
DH
VR
DV
DF
AH
CC
= 6.25V
= 6.25V
VA9 High to V
V
VA10 High to Chip Enable
High (Set)
VA10 Low to Chip Enable High
(Reset)
Chip Enable Transition to
VA10 Transition
Chip Enable Transition to V
Transition
V
Transition
Address Valid to Chip Enable
Low
Input Valid to Chip Enable Low
V
V
V
Chip Enable Program Pulse
Width (Initial)
Chip Enable Program Pulse
Width (Overprogram)
Chip Enable High to Input
Transition
Chip Enable High to V
Transition
V
Chip Enable Low to Output
Valid
Chip Enable High to Output Hi-
Z
Chip Enable High to Address
Transition
PP
PP
CC
PP
PP
PP
High to Chip Enable Low
Transition to VA9
High to Chip Enable Low
Rise Time
Low to Chip Enable Low
High to Chip Enable Low
0.25V; V
0.25V; V
Parameter
Parameter
PP
High
PP
PP
= 12.75V
= 12.75V
PP
PP
PP
PP
(1)
and removed simultaneously or after V
and removed simultaneously or after V
0.25V)
0.25V)
(1)
Test Condition
Test Condition
Note 2
Note 3
Min
0.95
2.85
Min
50
2
2
1
1
1
2
2
2
2
2
2
2
2
2
0
0
PP
PP
.
.
78.75
Max
Max
1.05
130
1
Unit
Unit
n s
ms
ms
ns
ns
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s