M27C64A-10F1 STMicroelectronics, M27C64A-10F1 Datasheet - Page 2

• Manufacturer Part Number: M27C64A-10F1
• Description: IC EPROM 64KBIT 100NS 28CDIP
• Manufacturer: STMicroelectronics

Specifications of M27C64A-10F1

• Format - Memory: EPROMs
• Memory Type: UV EPROM
• Memory Size: 64K (8K x 8)
• Speed: 100ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-CDIP (0.600", 15.24mm) Window
• Memory Configuration: 8K X 8
• Access Time: 100ns
• Supply Voltage Range: 4.5V To 5V
• Memory Case Style: DIP
• No. Of Pins: 28
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-1684-5

M27C64A
Figure 2A. DIP Connections
Table 1. Signal Names
2/14
A0-A12
Q0-Q7
E
G
P
V
V
V
NC
DU
PP
CC
SS
V PP
V SS
A12
Q0
Q1
Q2
A7
A6
A5
A4
A3
A2
A1
A0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
M27C64A
Address Inputs
Data Outputs
Chip Enable
Output Enable
Program
Program Supply
Supply Voltage
Ground
Not Connected Internally
Don’t Use
AI00835
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V CC
P
NC
A8
A9
A11
G
A10
E
Q7
Q6
Q5
Q4
Q3
Figure 2B. Pin Connections
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.
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
be used to gate data to the output pins, indepen-
dent of device selection. Assuming that the ad-
dresses are stable, the address access time
(t
(t
of t
E has been low and the addresses have been sta-
ble for at least t
AVQV
ELQV
GLQV
). Data is available at the output after a delay
) is equal to the delay from E to output
NC
Q0
A6
A5
A4
A3
A2
A1
A0
from the falling edge of G, assuming that
9
AVQV
PP
M27C64A
-t
and 12V on A9 for Electronic
GLQV
17
1
32
.
25
AI00836
A8
A9
A11
NC
G
A10
E
Q7
Q6