A278308A
256K X 8 OTP CMOS EPROM
Features
ꢀ262,144 X 8 bit organization
ꢀProgramming voltage: 12.75V
ꢀAccess time: 55/70 ns (max.)
ꢀAll inputs and outputs are directly TTL-compatible
ꢀAvailable in 32-pin DIP and 32-pin PLCC packages
ꢀCurrent: Operating: 30mA (max.) at 5MHz
Standby:
100µA (max.)
General Description
The A278308A chip is a high-performance 2,097,152 bit
one-time programmable read only memory (OTP EPROM)
organized as 256K by 8 bits. The A278308A requires only
5V power supply in normal read mode operation and any
input signals are TTL levels. The A278308A is available in
industry standard 32 pin dual-in-line and 32 pin PLCC
packages.
Pin Configurations
ꢀDIP
ꢀPLCC
VCC
1
2
3
32
31
30
VPP
A16
A15
PGM
A17
A12
A7
4
5
6
29
28
27
A14
A13
A8
A7
5
29
28
27
26
A14
A13
A8
A6
A5
6
7
A6
A5
A4
A3
7
26
A9
A9
A4
A3
A2
A1
8
A278308AL
8
25
24
23
22
A11
OE
25
24
A11
9
9
10
11
OE
23
22
21
A10
A2
A1
10
11
A10
CE
A0
12
13
CE
I/O
7
I/O
I/O
I/O
I/O
I/O
7
6
5
4
3
I/O0
A0
12
13
14
15
16
21
20
19
18
17
I/O
I/O
0
1
I/O
2
GND
(October, 2003, Version 1.0)
1
AMIC Technology, Corp.
AMICC [ AMIC TECHNOLOGY ]
