WS57C291C-45TMB STMicroelectronics, WS57C291C-45TMB Datasheet

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WS57C291C-45TMB

Manufacturer Part Number
WS57C291C-45TMB
Description
Manufacturer
STMicroelectronics
Datasheet

Specifications of WS57C291C-45TMB

Density
16Kb
Organization
2Kx8
Access Time (max)
45ns
Operating Current
50mA
Interface Type
Parallel
Package Type
CDIP
Operating Temperature Classification
Military
Operating Supply Voltage (typ)
5V
Operating Temp Range
-55C to 125C
Pin Count
24
Mounting
Through Hole
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (max)
5.5V
Lead Free Status / RoHS Status
Supplier Unconfirmed
BLOCK DIAGRAM
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.
PRODUCT SELECTION GUIDE
Ultra-Fast Access Time
— t
— t
Low Power Consumption
Fast Programming
Available in 300 Mil DIP and PLDCC
Address Access Time (Max)
CS to Output Valid Time (Max)
ACC
CS
CS1/ V
CS2
A5 - A10
ROW
ADDRESSES
A0 - A4
COLUMN
ADDRESSES
CS3
PARAMETER
Return to Main Menu
= 12 ns
= 25 ns
PP
5
6
HIGH SPEED 2K x 8 CMOS PROM/RPROM
DECODER
ROW
EPROM ARRAY
AMPLIFIERS
16,384 BITS
DECODER
OUTPUTS
COLUMN
SENSE
8
GENERAL DESCRIPTION
191C/291C-25
KEY FEATURES
25 ns
12 ns
PIN CONFIGURATION
NC
O
A
A
A
A
A
4
3
2
1
0
0
191C/291C-35
5
6
7
8
9
10
11
O
A
12 13 14 15 16 17 18
4 3 2
1
5
O
Pin Compatible with Am27S191/291
and N82S191 Bipolar PROMs
Immune to Latch-UP
— Up to 200 mA
ESD Protection Exceeds 2000V
A
35 ns
20 ns
6
2
Chip Carrier
GND
A
7
NC O
NC
1
V
28 27 26
CC
3
O
A
4
8
O
A
9
25
24
23
22
21
20
19
5
191C/291C-45
WS57C191C/291C
TOP VIEW
A
CS1/V
CS2
CS3
NC
O
O
45 ns
20 ns
10
7
6
PP
GND
CERDIP/Plastic DIP
O
O
O
A
A
A
A
A
A
A
A
7
6
5
4
3
2
1
0
0
1
2
1
2
3
4
5
6
7
8
9
10
11
12
191C/291C-55
55 ns
20 ns
24
23
22
21
20
19
18
17
16
15
14
13
V
A
A
A 10
CS1/V
CS2
CS3
O
O
O
O
O
CC
8
9
7
6
5
4
3
2-7
PP

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WS57C291C-45TMB Summary of contents

Page 1

... 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. ...

Page 2

WS57C191C/291C ABSOLUTE MAXIMUM RATINGS* Storage Temperature............................–65° 150°C Voltage on any Pin with Respect to Ground ....................................–0.6V to +7V V with Respect to Ground...................–0. 14V PP ESD Protection .................................................. * NOTICE: Stresses above those listed under "Absolute ...

Page 3

AC READ CHARACTERISTICS PARAMETER SYMBOL Address to Output Delay CS to Output Delay Output Disable to * Output Float Address to Output Hold * Sampled, Not 100% Tested AC READ TIMING DIAGRAM ADDRESSES CS OUTPUTS Over Operating Range. (See Above) ...

Page 4

WS57C191C/291C CAPACITANCE ( 25° MHz A SYMBOL PARAMETER C Input Capacitance IN C Output Capacitance OUT C V Capacitance VPP PP NOTES: 4. This parameter is only sampled and is not 100% tested. 5.Typical values ...

Page 5

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 ) NORMALIZED T aa vs. AMBIENT TEMPERATURE 1.6 1.4 1.2 1.0 0.8 0.6 -55 -35 - ...

Page 6

WS57C191C/291C PROGRAMMING INFORMATION DC CHARACTERISTICS SYMBOLS Input Leakage Current Supply Current During Programming Pulse I V Supply Current CC CC Output Low Voltage During Verify ...

Page 7

... WS57C291C-35TMB 35 WS57C291C-45S 45 WS57C291C-45T 45 WS57C291C-45TI 45 * WS57C291C-45TMB 45 WS57C291C-55T 55 * WS57C291C-55TMB 55 NOTE: 9. The actual part marking will not include the initials "WS." *SMD product. See section 4 for DESC SMD number. PROGRAMMING/ALGORITHMS/ERASURE/PROGRAMMERS The WS57C191C and WS57C291C are programmed using Algorithm D shown on page 5-9. Return to Main Menu ...

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