M27C1024-20K1 STMicroelectronics, M27C1024-20K1 Datasheet - Page 7

• Manufacturer Part Number: M27C1024-20K1
• Manufacturer: STMicroelectronics

Specifications of M27C1024-20K1

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Table 10. Programming Mode AC Characteristics
(T
Note: 1. V
Table 11. Programming Mode AC Characteristics
(T
Note: 1. V
Programming
When delivered (and after each ’1’s erasure for UV
EPROM), all bits of the M27C1024 are in the ’1’
state. Data is introduced by selectively program-
ming ’0’s into the desired bit locations. Although
only ’0’s will be programmed, both ’1’s and ’0’s can
be present in the data word. The only way to
change a ’0’ to a ’1’ is by die exposure to ultraviolet
A
A
t
Symbol
GHQZ
Symbol
t
t
t
t
t
t
t
VPHPL
VCHPL
t
t
t
= 25 C; V
= 25 C; V
PHQX
QXGL
GLQV
GHAX
QVPL
PLPH
AVPL
ELPL
V
V
2. Sampled only, not 100% tested.
I
V
V
I
V
I
CC
PP
OH
LI
OL
IH
ID
IL
(2)
CC
CC
must be applied simultaneously with or before V
must be applied simultaneously with or before V
Input Leakage Current
Supply Current
Program Current
Input Low Voltage
Input High Voltage
Output Low Voltage
Output High Voltage TTL
A9 Voltage
CC
CC
t
t
t
t
t
t
t
t
Alt
t
t
VPS
VCS
CES
OES
DFP
t
PW
DS
DH
OE
AH
AS
= 6.25V
= 6.25V
Address Valid to Program Low
Input Valid to Program Low
V
V
Chip Enable Low to Program Low
Program Pulse Width
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
= 12.75V
= 12.75V
PP
PP
and removed simultaneously or after V
and removed simultaneously or after V
Test Condit ion
I
0
OH
I
0.25V)
0.25V)
OL
(1)
(1)
E = V
= –400 A
V
= 2.1mA
light (UV EPROM). The M27C1024 is in the pro-
gramming mode when V
at V
grammed is applied to 16 bits in parallel to the data
output pins. The levels required for the address
and data inputs are TTL. V
6.25V
IN
IL
IL
V
IH
Test Conditi on
and P is pulsed to V
0.25V.
–0.3
11.5
Min
2.4
2
PP
PP
PP
.
.
Min
95
2
2
2
2
0
2
2
2
0
V
IL
input is at 12.75V, E is
CC
CC
. The data to be pro-
Max
12.5
0.8
0.4
50
50
10
+ 0.5
is specified to be
Max
105
100
130
M27C1024
Unit
mA
mA
V
V
V
V
V
A
Unit
ns
ns
ns
7/16
s
s
s
s
s
s
s
s