WS57C191C-25D Datasheet PDF - STMicroelectronics
| Part Number | WS57C191C-25D | |
| Description | HIGH SPEED 2K x 8 CMOS PROM/RPROM | |
| Manufacturers | STMicroelectronics | |
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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
Return to Main Menu
2-7
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NORMALIZED SUPPLY CURRENT
vs.
SUPPLY VOLTAGE
1.60
1.40
1.20
1.00
0.80
0.60
4.0
4.5 5.0 5.5
SUPPLY VOLTAGE ( V)
6.0
WS57C191C/291C
TYPICAL ACCESS TIME CHANGE
vs.
OUTPUT LOADING
40.0
35.0
30.0
25.0
20.0
15.0
10.0
5.0
0.0
0.0
200 400 600 800
CAPACITANCE ( pF)
1000
NORMALIZED Taa
vs.
AMBIENT TEMPERATURE
1.6
1.4
1.2
1.0
0.8
0.6
-55 -35 -15 5 25 45 65 85 105 125
AMBIENT TEMPERATURE (°C)
NORMALIZED SUPPLY CURRENT
vs.
AMBIENT TEMPERATURE
1.2
1.1
1.0
0.9
0.8
-55 -35 -15 5 25 45 65 85 105 125
AMBIENT TEMPERATURE (°C)
2-11
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for WS57C191C-25D electronic component. |
| Information | Total 7 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ WS57C191C-25D.PDF Datasheet ] | |
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