WS57LV291C-70 STMicroelectronics, WS57LV291C-70 Datasheet

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WS57LV291C-70

Manufacturer Part Number
WS57LV291C-70
Description
HIGH SPEED 3.3 VOLT 2K x 8 CMOS PROM/RPROM
Manufacturer
STMicroelectronics
Datasheet
BLOCK DIAGRAM
The WS57LV291C is a High Performance 2K x 8 UV Erasable Re-Programmable Read Only Memory (RPROM).
This RPROM is manufactured using an advanced CMOS EPROM manufacturing process resulting in a very low
power die that affords exceptional speed capabilities with a 3.3 volt V
is configured in the standard Bipolar PROM pinouts, the preferred and most common pinout for high speed PROMs
of 16K density.
Operating at 3.3 volts, the WS57LV291C dissipates a maximum of 25 mA under worst case conditions at maximum
speed (70 ns T
The WS57LV291C is packaged in a space saving 300 mil windowed, hermetic DIP package.
PRODUCT SELECTION GUIDE
3.3 Volt ± 0.3 Volt V
Fast Access Time
— t
— t
Low Power Consumption
— ≤ 25 mA I
ACC
CS
Address Access Time (Max)
CS to Output Valid Time (Max)
HIGH SPEED 3.3 VOLT 2K x 8 CMOS PROM/RPROM
CS1/ V
CS2
A5 - A10
ROW
ADDRESSES
A0 - A4
COLUMN
ADDRESSES
CS3
= 20 ns
Return to Main Menu
= 70 ns
PP
5
AA
6
CC
). Typical I
PARAMETER
DECODER
ROW
CC
CC
at 25°C is less than 20 milliamps.
EPROM ARRAY
AMPLIFIERS
16,384 BITS
DECODER
OUTPUTS
COLUMN
SENSE
8
GENERAL DESCRIPTION
KEY FEATURES
WS57LV291C-70
PIN CONFIGURATION
70 ns
20 ns
Available in 300 Mil "Skinny" DIP
Immune to Latch-up
— Up to 200 mA
ESD Protection Exceeds 2000V
GND
O
O
O
A
A
A
A
A
A
A
A
7
6
5
4
3
2
1
0
0
1
2
CC
1
2
3
4
5
6
7
8
9
10
11
12
TOP VIEW
CERDIP
supply. The WS57LV291C
WS57LV291C
WS57LV291C-90
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
PRELIMINARY
90 ns
30 ns
CC
8
9
7
6
5
4
3
PP
2-15

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WS57LV291C-70 Summary of contents

Page 1

... Available in 300 Mil "Skinny" DIP • Immune to Latch-up — 200 mA • ESD Protection Exceeds 2000V GENERAL DESCRIPTION PIN CONFIGURATION 16,384 BITS COLUMN DECODER SENSE AMPLIFIERS 8 OUTPUTS WS57LV291C- WS57LV291C PRELIMINARY supply. The WS57LV291C CC TOP VIEW CERDIP ...

Page 2

... – (Notes 1 and Maximum Frequency CC Outputs Not Loaded V = 3.6V or Gnd 3 Gnd OUT ± 0.3V. CC Over Operating Range. (See Above) WS57LV291C-70 SYMBOL MIN t ACC PINS CS1/ CS2 CS3 ...

Page 3

... OUT A.C. TESTING INPUT/OUTPUT WAVEFORM 3.0 1.5 0.0 A.C. testing inputs are driven at 3.0 V for a logic "1" and 0.0 V for a logic "0." Timing measurements are made at 1.5 V for input and output transitions in both directions. WS57LV291C DF MAX UNITS TEST 1.5 POINTS and ground is recommended. ...

Page 4

... WS57LV291C NORMALIZED SUPPLY CURRENT vs. SUPPLY VOLTAGE 1.60 1.40 1.20 1.00 0.80 0.60 4.0 4.5 5.0 SUPPLY VOLTAGE ( V ) NORMALIZED T aa vs. AMBIENT TEMPERATURE 1.6 1.4 1.2 1.0 0.8 0.6 -55 -35 - AMBIENT TEMPERATURE ( °C ) 2-18 5.5 6 105 125 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 CAPACITANCE ( pF ) NORMALIZED SUPPLY CURRENT vs. AMBIENT TEMPERATURE 1.2 1.1 1.0 0.9 0.8 -55 -35 - AMBIENT TEMPERATURE (°C) ...

Page 5

... ± 5° 6.25 V ± 0. ± 5° 6.25 V ± 0. PARAMETER ADDRESS STABLE t AS DATA DON'T CARE WS57LV291C = 12.75 ± 0. MIN MAX – 0.45 2.4 = 12.75 ± 0. MIN TYP MAX 100 200 DATA OUT ...

Page 6

... WS57LV291C ORDERING INFORMATION SPEED PART NUMBER (ns) WS57LV291C-70T 70 WS57LV291C-90T 90 NOTE: 8. The actual part marking will not include the initials "WS." PROGRAMMING/ALGORITHMS/ERASURE/PROGRAMMERS The WS57LV291C is programmed using Algorithm D shown on page 5-9. Return to Main Menu PACKAGE PACKAGE TYPE DRAWING 24 Pin CERDIP, 0.3" Pin CERDIP, 0.3" ...

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