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WS57C43C-35CMB fiches techniques PDF

STMicroelectronics - HIGH SPEED 4K x 8 CMOS PROM/RPROM

Numéro de référence WS57C43C-35CMB
Description HIGH SPEED 4K x 8 CMOS PROM/RPROM
Fabricant STMicroelectronics 
Logo STMicroelectronics 





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WS57C43C-35CMB fiche technique
WS57C43C
MILITARY HIGH SPED 4K x 8 CMOS PROM/RPROM
KEY FEATURES
Ultra-Fast Access Time
— tACC = 35 ns
— tCS = 20 ns
Low Power Consumption
Fast Programming
DESC SMD No. 5962-906580
Pin Compatible with 4K x 8 Bipolar PROMs
Immune to Latch-UP
— Up to 200 mA
ESD Protection Exceeds 2000 V
Available in 300 Mil DIP and CLLCC
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.
MODE SELECTION
PINS
MODE
Read
Output
Disable
Output
Disable
Program
Program
Verify
CS1
VPP
VI L
VI H
X
VPP
VI L
CS2
VI H
X
VI L
X
VI H
VCC OUTPUTS
VCC
VCC
VCC
VCC
VCC
DOUT
High Z
High Z
DIN
DOUT
PIN CONFIGURATION
TOP VIEW
Chip Carrier
CERDIP
NC
A5 A6 A7 VCC A8 A9
A7 1
A4
4
5
3
2
1
28 27 26
25
A10
A6 2
A5 3
A3
A2
A1
A0
NC
O0
6 24
7 23
8 22
9 21
10 20
11 19
12 13 14 15 16 17 18
CS1/VPP
A11
CS2
A4
A3
A2
4
5
6
NC A1 7
O7
O6
A0 8
O0 9
O1 10
O2 11
O1 O2 NC O3 O4 O5
GND
GND 12
24 VCC
23 A8
22 A9
21 A10
20 CS1/VPP
19 A11
18 CS2
17 O7
16 O6
15 O5
14 O4
13 O3
PRODUCT SELECTION GUIDE
PARAMETER
Address Access Time (Max)
CS to Output Valid Time (Max)
WS57C43C-35
35 ns
20 ns
WS57C43C-45
45 ns
25 ns
WS57C43C-55
55 ns
25 ns
WS57C43C-70
70 ns
25 ns
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