SGS Thomson Microelectronics WS57C43C Datasheet
PRODUCT SELECTION GUIDE
PARAMETER WS57C43C-35 WS57C43C-45 WS57C43C-55 WS57C43C-70
Address Access Time (Max) 35 ns 45 ns 55 ns 70 ns
CS to Output Valid Time (Max) 20 ns 25 ns 25 ns 25 ns
WS57C43C
PINS CS1 CS2 V
CC
OUTPUTS
MODE V
PP
Read V
IL
V
IH
V
CC
D
OUT
Output
Disable
V
IH
XVCCHigh Z
Output
XV
IL
V
CC
High Z
Disable
Program V
PP
XVCCD
IN
Program
Verify
V
IL
V
IH
V
CC
D
OUT
V
CC
A
8
A
9
A
10
CS1/V
PP
A
11
CS2
O
7
O
6
O
5
O
4
O
3
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
O
0
O
1
O
2
GND
A
10
CS1/V
PP
A
11
CS2
NC
O
7
O
6
A5 A6 A7 VCC A8 A
9
NC
A
4
A
3
A
2
A
1
A
0
NC
O
0
O1 O2 NC O3 O4 O
5
GND
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
1
432
28 27
26
25
24
23
22
21
20
19
5
6
7
8
9
10
11
12 13 1415161718
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Chip Carrier CERDIP
MODE SELECTION PIN CONFIGURATION
4-7
MILITARY HIGH SPED 4K x8 CMOS PROM/RPROM
KEY FEATURES
• Ultra-Fast Access Time • Pin Compatible with 4K x 8 Bipolar PROMs
— t
ACC
= 35 ns
• Immune to Latch-UP
— tCS= 20 ns
— Up to 200 mA
• Low Power Consumption
• ESD Protection Exceeds 2000 V
• Fast Programming
• Available in 300 Mil DIP and CLLCC
• DESC SMD No. 5962-906580
GENERAL DESCRIPTION
The WS57C43C is a High Performance 32K UV Erasable Electrically Re-Programmable Read Only Memory
(RPROM). It is manufactured in an advanced CMOS technology which enables it to operate at Bipolar PROM
speeds while consuming only 25% of the power required by its Bipolar counterparts. A further advantage of the
WS57C43C over Bipolar PROM devices is the fact that it utilizes a proven EPROM technology. This enables the
entire memory array to be tested for switching characteristics and functionality after assembly. Unlike devices which
cannot be erased, every WS5743C in a windowed package is 100% tested with worst case test patterns both
before and after assembly.
The WS57C43C is configured in the standard Bipolar PROM pinout which provides an easy upgrade path for
systems which are currently using Bipolar PROMs, or its predecessor, the WS57C43B.
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ORDERING INFORMATION
SPEED PACKAGE PACKAGE
OPERATING WSI
PART NUMBER
(ns) TYPE DRAWING
TEMPERATURE MANUFACTURING
RANGE PROCEDURE
WS57C43C-35CMB* 35 28 Pad CLLCC C1 Military MIL-STD-883C
WS57C43C-35TMB* 35 24 Pin CERDIP, 0.3" T1 Military MIL-STD-883C
WS57C43C-45TMB* 45 24 Pin CERDIP, 0.3" T1 Military MIL-STD-883C
WS57C43C-55TMB* 55 24 Pin CERDIP, 0.3" T1 Military MIL-STD-883C
WS57C43C
4-8
NOTE: The actual part marking will not include the initials "WS."
*SMD product. See page 5-1 for DESC SMD numbers.
PROGRAMMING/ALGORITHMS/ERASURE/PROGRAMMERS
REFER TO
PAGE 5-1
The WS57C43C is programmed using Algorithm D shown on page 5-9.
For complete data sheet and electrical specifications see page 2-31.
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