A278308
Preliminary
256K X 8 OTP CMOS EPROM
Features
n 262,144 X 8 bit organization
n Programming voltage: 12.75V
n Access time: 70 ns (max.)
n All inputs and outputs are directly TTL-compatible
n Available in 32-pin DIP and 32-pin PLCC packages
n Current: Operating: 30mA (max.) at 5MHz
Standby:
100mA (max.)
General Description
The A278308 chip is a high-performance 2,097,152 bit
one-time programmable read only memory (OTP
EPROM) organized as 256K by 8 bits. The A278308
requires only 5V power supply in normal read mode
operation and any input signals are TTL levels. The
A278308 is available in industry standard 32 pin dual-in-
line and 32 pin PLCC packages.
Pin Configurations
n DIP
n 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
7
26
A9
A9
A4
8
A278308L
A4
A3
8
25
24
23
22
A11
OE
25
24
A11
A3
A2
A1
9
9
10
11
OE
23
22
A10
A2
A1
10
11
A10
CE
A0
12
13
CE
21
I/O7
I/O
I/O
I/O
I/O
I/O
7
6
5
I/O0
A0
12
13
21
20
I/O
0
1
I/O
14
15
16
19
18
17
4
3
I/O2
GND
PRELIMINARY
(December, 1998, Version 2.0)
1
AMIC Technology, Inc.
AMICC [ AMIC TECHNOLOGY ]
