m27c800-120f6tr STMicroelectronics, m27c800-120f6tr Datasheet - Page 8

• Manufacturer Part Number: m27c800-120f6tr
• Description: 8 Mbit 1mb X 8 Or 512kb X 16 Low Voltage Uv Eprom And Otp Eprom
• Manufacturer: STMicroelectronics

M27W800
Table 9. Programming Mode DC Characteristics
(T
Note: 1. V
Table 10. Programming Mode AC Characteristics
T
Note: 1. V
Programming
The M27W800 has been designed to be fully com-
patible with the M27C800 and has the same elec-
tronic signature. As a result the M27W800 can be
programmed as the M27C800 on the same pro-
gramming equipments applying 12.75V on V
and 6.25V on V
TO III algorithm. When delivered (and after each
erasure for UV EPROM), all bits of the M27W800
are in the ’1’ state. Data is introduced by selective-
8/15
A
A
Symbol
t
Symbol
GHQZ
= 25 ° C; V
t
t
t
t
t
t
t
VPHAV
VCHAV
t
V
t
= 25 ° C; V
V
EHQX
QXGL
GLQV
GHAX
I
V
V
QVEL
ELEH
I
V
AVEL
I
CC
PP
2. Sampled only, not 100% tested.
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
OES
t
Alt
t
t
VPS
VCS
DFP
t
PW
DH
OE
AS
DS
AH
CC
= 6.25V ± 0.25V; V
= 6.25V ± 0.25V; V
by the use of the same PRES-
Address Valid to Chip Enable Low
Input Valid to Chip Enable Low
V
V
Chip Enable Program Pulse Width
Chip Enable 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
Parameter
PP
CC
High to Address Valid
High to Address Valid
Parameter
PP
PP
= 12.5V ± 0.25V)
= 12.5V ± 0.25V)
PP
PP
PP
and removed simultaneously or after V
and removed simultaneously or after V
Test Condition
0
I
OH
I
(1)
OL
(1)
E = V
V
= –2.5mA
= 2.1mA
ly programming ’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 ul-
traviolet light (UV EPROM). The M27W800 is in
the programming mode when V
12.5V, G is at V
to be programmed is applied to 16 bits in parallel
to the data output pins. The levels required for the
address and data inputs are TTL. V
to be 6.25V ± 0.25V.
IN
IL
V
CC
Test Condition
IH
and E is pulsed to V
–0.3
11.5
Min
2.4
3.5
PP
PP
.
.
Min
45
2
2
2
2
2
2
0
0
V
CC
Max
12.5
0.8
0.4
±1
50
50
+ 0.5
PP
CC
Max
120
130
55
IL
input is at
is specified
. The data
Unit
mA
mA
V
V
V
V
V
A
Unit
µs
µs
µs
µs
µs
µs
ns
µs
ns
ns