M27C64A STMICROELECTRONICS [STMicroelectronics], M27C64A Datasheet - Page 2

• Manufacturer Part Number: M27C64A
• Description: 64K (8K x 8) UV EPROM and OTP ROM
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

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 5V power
supply is required in the read mode. All inputs are
TTL levels except for V
tronic Signature.
2/11
Symbol
V
V
T
T
V
V
A9
IO (2)
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
PP
A
(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 SGS-THOMSON 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
M27C64A
PP
CC
and 12V on A9 for Elec-
+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)
CC
+2V for a period less than 20ns.
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
Figure 2B. LCC Pin Connections
Warning: NC = Not Connected, DU = Don’t Use
NC
Q0
A6
A5
A4
A3
A2
A1
A0
9
–40 to 125
–50 to 125
–65 to 150
–2 to 7
–2 to 7
–2 to 13.5
–2 to 14
M27C64A
Value
17
1
32
25
AI00836
A8
A9
A11
NC
G
A10
E
Q7
Q6
Unit
V
V
V
V
C
C
C