M27C64 STMICROELECTRONICS [STMicroelectronics], M27C64 Datasheet - Page 2
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M27C64
Manufacturer Part Number
M27C64
Description
64 Kbit 8Kb x 8 UV EPROM and OTP EPROM
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.M27C64.pdf
(12 pages)
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M27C64A
Figure 2A. DIP Pin Connections
Warning: NC = Not Connected
Table 2. Absolute Maximum Ratings
Notes: 1. Except for the rating "Operating Temperature Range", stresses above those listed in the Table "Absolute Maximum Ratings"
DEVICE OPERATION
The modes of operation of the M27C64A are listed
in the Operating Modes table. A single power sup-
ply is required in the read mode. All inputs are TTL
levels except for V
Signature.
2/12
Symbol
V
V
T
T
V
V
A9
IO
T
BIAS
STG
CC
2. Minimum DC voltage on Input or Output is –0.5V with possible undershoot to –2.0V for a period less than 20ns. Maximum DC
3. Depends on range.
PP
A
(2)
(2)
may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other
conditions above those indicated in the Operating sections of this specification is not implied. Exposure to Absolute Maximum
Rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other
relevant quality documents.
voltage on Output is V
V PP
V SS
A12
Q0
Q1
Q2
A7
A6
A5
A4
A3
A2
A1
A0
Ambient Operating Temperature
Temperature Under Bias
Storage Temperature
Input or Output Voltages (except A9)
Supply Voltage
A9 Voltage
Program Supply Voltage
1
2
3
4
5
6
7
8
9
10
11
12
13
14
PP
M27C64A
and 12V on A9 for Electronic
CC
+0.5V with possible overshoot to V
AI00835
28
27
26
25
24
23
22
21
20
19
18
17
16
15
Parameter
V CC
P
NC
A8
A9
A11
G
A10
E
Q7
Q6
Q5
Q4
Q3
(1)
(3)
CC
+2V for a period less than 20ns.
Figure 2B. LCC Pin Connections
Warning: NC = Not Connected, DU = Don’t Use
Read Mode
The M27C64A has two control functions, both of
which must be logically active in order to obtain
data at the outputs. Chip Enable (E) is the power
control and should be used for device selection.
Output Enable (G) is the output control and should
NC
Q0
A6
A5
A4
A3
A2
A1
A0
9
–40 to 125
–50 to 125
–65 to 150
–2 to 14
–2 to 7
–2 to 7
–2 to 13.5
M27C64A
Value
17
1
32
25
AI00836
A8
A9
A11
NC
G
A10
E
Q7
Q6
Unit
V
V
V
V
C
C
C