
PRODUCT SELECTION GUIDE
PARAMETER
Address Access Time (Max)
Chip Select Time (Max)
Output Enable Time (Max)
27C010L-90
90 ns
90 ns
35 ns
27C010L-12
120 ns
120 ns
35 ns
27C010L-15
150 ns
150 ns
40 ns
27C010L-17
170 ns
170 ns
40 ns
27C010L-20
200 ns
200 ns
40 ns
WS27C010L
TOP VIEW
Chip Carrier
CERDIP
PIN CONFIGURATION
4-25
Military 128K x 8 CMOS EPROM
KEY FEATURES
DESC SMD No. 5962-89614
Compatible with JEDEC 27010 and
27C010 EPROMs
JEDEC Standard Pin Configuration
— 32 Pin CERDIP Package
— 32 Pin Leadless Chip Carrier (CLLCC)
High Performance CMOS
— 90 ns Access Time
Fast Programming
EPI Processing
— Latch-Up Immunity to 200 mA
— ESD Protection Exceeds 2000 Volts
GENERAL DESCRIPTION
The WS27C010L is a performance oriented 1 Meg UV Erasable Electrically Programmable Read Only Memory
organized as 128K words x 8 bits/word. It is manufactured using an advanced CMOS technology which enables it to
operate at data access times as fast as 120 nsecs. The memory was designed utilizing WSI's patented self-aligned
split gate EPROM cell, resulting in a low power device with a very cost effective die size.
The WS27C010L 1 Meg EPROM provides extensive code store capacity for microprocessor, DSP, and
microcontroller-based systems. Its 120 nsec access time over the full Military temperature range provides the
potential of no-wait state operation. And where this parameter is important, the WS27C010L provides the user with
a very fast 35 nsec T
OE
output enable time.
The WS27C010L is offered in both a 32 pin 600 mil CERDIP, and a 32 pad Ceramic Leadless Chip Carrier
(CLLCC) for surface mount applications. Its standard JEDEC EPROM pinouts provide for automatic upgrade
density paths for existing 128K and 256K EPROM users.
A
14
A
13
A
8
A
9
A
11
OE
A
10
CE
O
7
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
O
0
A
1
A
1
A
1
V
P
V
C
P
N
O
1
O
2
O
3
O
4
O
5
O
6
G
1
4 3
2
32 31 30
29
28
27
26
25
24
23
22
21
5
6
7
8
9
10
11
12
13
14 15 16 17 18 19 20
V
CC
PGM
NC
A14
A13
A8
A9
A11
OE
A10
CE
O
7
O
6
O
5
O
4
O
3
V
PP
A
16
A
15
A
12
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
O
0
O
1
O
2
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
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