m27128a STMicroelectronics, m27128a Datasheet - Page 6

• Manufacturer Part Number: m27128a
• Description: Nmos 128k 16k X 8 Uv Eprom
• Manufacturer: STMicroelectronics

Table 9. Programming Mode AC Characteristics
(T
Notes: 1. V
M27128A
Table 8. Programming Mode DC Characteristics
(T
Note: 1. V
6/10
Symbol
t
A
A
GHQZ
t
t
t
t
t
t
t
t
VPHPL
VCHPL
t
t
t
PHQX
QXGL
GLQV
GHAX
QVPL
PLPH
PLPH
= 25 C; V
AVPL
ELPL
= 25 C; V
Symbol
2. The Initial Program Pulse width tolerance is 1 ms
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.
V
V
I
V
V
V
I
I
CC
(4)
PP
LI
OH
OL
IL
IH
ID
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
OPW
Alt
t
t
t
OES
t
t
VPS
VCS
CES
DFP
PW
DS
DH
OE
AH
AS
CC
CC
Input Leakage Current
Supply Current
Program Current
Input Low Voltage
Input High Voltage
Output Low Voltage
Output High Voltage
A9 Voltage
= 6V
= 6V
Address Valid to Program Low
Input Valid to Program Low
V
V
Chip Enable Low to Program
Low
Program Pulse Width (Initial)
Program Pulse Width
(Overprogram)
Program High to Input
Transition
Input Transition to Output
Enable Low
Output Enable Low to
Output Valid
Output Enable High to
Output Hi-Z
Output Enable High to
Address Transition
PP
CC
Parameter
High to Program Low
High to Program Low
0.25V; V
0.25V; V
Parameter
PP
PP
= 12.5V
= 12.5V
Test Condition
PP
5%.
V
0.3V)
I
0.3V)
PP
OH
I
IL
OL
and removed simultaneously or after V
and removed simultaneously or after V
E = V
= –400 A
= 2.1mA
V
IN
(1)
(1)
Test Condition
IL
V
IH
Note 3
Note 2
–0.1
11.5
Min
2.4
2
0.95
2.85
Min
2
2
2
2
2
2
2
0
0
PP
PP
.
.
V
CC
Max
0.45
12.5
100
0.8
50
10
+ 1
78.75
Max
1.05
150
130
Unit
mA
mA
V
V
V
V
V
Unit
A
ms
ms
ns
ns
ns
s
s
s
s
s
s
s