M27V101-90N6TR STMicroelectronics, M27V101-90N6TR Datasheet - Page 6

• Manufacturer Part Number: M27V101-90N6TR
• Description: 1 Mbit 128Kb x 8 Low Voltage UV EPROM and OTP EPROM
• Manufacturer: STMicroelectronics

M27V102
Table 8B. Read Mode AC Characteristics
(T
Notes: 1. V
Figure 5. Read Mode AC Waveforms
Programming
The M27V102 has been designed to be fully com-
patible with the M27C1024 and has the same
elecronic signature. As a result the M27V102 can
be programmed as the M27C1024 on the same
programming equipments applying 12.75V on V
and 6.25V on V
II algorithm. When delivered (and after each ’1’s
erasure for UV EPROM), all bits of the M27V102
are in the ’1’ state. Data is introduced by selectively
6/15
Symbol
t
t
A
EHQZ
GHQZ
t
t
t
t
GLQV
AXQX
AVQV
ELQV
= 0 to 70 C or –40 to 85 C; V
2. Sampled only, not 100% tested.
(2)
(2)
CC
Q0-Q15
A0-A15
E
G
must be applied simultaneously with or before V
t
Alt
t
ACC
t
t
t
t
CE
OE
OH
DF
DF
CC
Address Valid to Output Valid
Chip Enable Low to Output Valid
Output Enable Low to Output Valid
Chip Enable High to Output Hi-Z
Output Enable High to Output Hi-Z
Address Transition to Output
Transition
by the use of the same PRESTO
Parameter
CC
tAVQV
tELQV
= 3.3V
tGLQV
VALID
(1)
PP
10%; V
PP
and removed simultaneously with or after V
Test Condition
E = V
E = V
G = V
G = V
E = V
E = V
PP
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
ultraviolet light (UV EPROM). The M27V102 is in
the programming mode when V
12.75V, E 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
IL
IL
, G = V
, G = V
= V
IL
IL
IL
IL
CC
IL
IL
)
Min Max Min Max Min Max
tAXQX
0
0
0
-120
0.25V.
120
120
IL
50
40
40
and P is pulsed to V
tGHQZ
tEHQZ
VALID
M27V102
0
0
0
-150
PP.
150
150
60
50
50
0
0
0
AI00705B
PP
-200
CC
Hi-Z
200
200
input is at
IL
is specified
90
70
70
. The data
Unit
ns
ns
ns
ns
ns
ns