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WS57C291C-25T fiches techniques PDF

STMicroelectronics - HIGH SPEED 2K x 8 CMOS PROM/RPROM

Numéro de référence WS57C291C-25T
Description HIGH SPEED 2K x 8 CMOS PROM/RPROM
Fabricant STMicroelectronics 
Logo STMicroelectronics 





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WS57C291C-25T fiche technique
WS57C191C/291C
HIGH SPEED 2K x 8 CMOS PROM/RPROM
KEY FEATURES
Ultra-Fast Access Time
— tACC = 25 ns
— tCS = 12 ns
Low Power Consumption
Fast Programming
Available in 300 Mil DIP and PLDCC
Pin Compatible with Am27S191/291
and N82S191 Bipolar PROMs
Immune to Latch-UP
— Up to 200 mA
ESD Protection Exceeds 2000V
GENERAL DESCRIPTION
The WS57C191C/291C is an extremely High Performance 16K 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. The WS57C191C/291C
is also configured in the standard Bipolar PROM pinout which provides an easy upgrade path for systems which are
currently using Bipolar PROMs.
The WS57C191C is packaged in a conventional 600 mil DIP package as well as a Plastic Leaded Chip Carrier
(PLDCC) and a Ceramic Leadless Chip Carrier (CLLCC). The WS57C291C is packaged in a space saving 300 mil
DIP package configuration. Both are available in commercial, industrial, and military operating temperature ranges.
BLOCK DIAGRAM
6
A5 - A10
ROW
ADDRESSES
ROW
DECODER
EPROM ARRAY
16,384 BITS
5
A0 - A4
COLUMN
ADDRESSES
CS1/ VPP
CS2
CS3
COLUMN
DECODER
SENSE
AMPLIFIERS
8
OUTPUTS
PIN CONFIGURATION
TOP VIEW
Chip Carrier
CERDIP/Plastic DIP
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 6
A2 7
24
23
CS1/VPP
CS2
A4
A3
4
5
A1 8
22 CS3
A0 9
21 NC
NC 10
20 O7
O0 11
19 O6
12 13 14 15 16 17 18
A2 6
A1 7
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 CS2
18 CS3
17 O7
16 O6
15 O5
14 O4
13 O3
PRODUCT SELECTION GUIDE
PARAMETER
Address Access Time (Max)
CS to Output Valid Time (Max)
191C/291C-25
25 ns
12 ns
191C/291C-35
35 ns
20 ns
191C/291C-45
45 ns
20 ns
191C/291C-55
55 ns
20 ns
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