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STMicroelectronics Electronic Components Datasheet

WS57C43C Datasheet

HIGH SPEED 4K x 8 CMOS PROM/RPROM

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WS57C43C
HIGH SPEED 4K x 8 CMOS PROM/RPROM
KEY FEATURES
Ultra-Fast Access Time
— tACC = 25 ns
— tCS = 12 ns
Low Power Consumption
Fast Programming
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 PLDCC
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.
BLOCK DIAGRAM
7
A5 - A11
ROW
ADDRESSES
ROW
DECODER
EPROM ARRAY
32,768 BITS
5
A0 - A4
COLUMN
ADDRESSES
CS1/ VPP
CS2
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
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)
57C43C-25
25 ns
12 ns
57C43C-35
35 ns
20 ns
57C43C-45
45 ns
25 ns
57C43C-55
55 ns
25 ns
57C43C-70
70 ns
25 ns
Return to Main Menu
2-31


STMicroelectronics Electronic Components Datasheet

WS57C43C Datasheet

HIGH SPEED 4K x 8 CMOS PROM/RPROM

No Preview Available !

WS57C43C
ABSOLUTE MAXIMUM RATINGS*
Storage Temperature............................–65° to + 150°C
Voltage on any Pin with
Respect to Ground ....................................–0.6V to +7V
VPP with Respect to Ground...................–0.6V to + 14V
ESD Protection ..................................................>2000V
*NOTICE:
Stresses above those listed under "Absolute Maximum
Ratings" may cause permanent damage to the device.
This is a stress rating only and functional operation of
the device at these or any other conditions above
those indicated in the operational sections of this
specification is not implied. Exposure to absolute
maximum rating conditions for extended periods of
time may affect device reliability.
MODE SELECTION
PINS
MODE
Read
Output Disable
Output Disable
CS1/
VPP
VI L
VI H
X
Program
Program Verify
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
OPERATING RANGE
RANGE
TEMPERATURE
Commercial
0°C to +70°C
Industrial
–40°C to +85°C
Military
–55°C to +125°C
VCC
+5V ± 10%
+5V ± 10%
+5V ± 10%
DC READ CHARACTERISTICS Over Operating Range. (See Above)
SYMBOL PARAMETER
TEST CONDITIONS
MIN MAX UNITS
VIL
VIH
VOL
VOH
ICC1
Input Low Voltage
(Note 3)
–0.1 0.8
Input High Voltage (Note 3)
2.0 VCC + 0.3
Output Low Voltage IOL = 16 mA
0.4
Output High Voltage IOH = –4 mA
2.4
VCC Active Current
(CMOS)
VCC = 5.5 V, f = 0 MHz (Note 1),
Output Not Loaded
Add 3 mA/MHz for AC Operation
Comm'l
Industrial
Military
30
35
35
V
V
V
V
mA
mA
mA
ICC2
VCC Active Current
VCC = 5.5 V, f = 0 MHz (Note 1), Comm'l
Output Not Loaded
Industrial
(TTL)
Add 3 mA/MHz for AC Operation Military
40 mA
50 mA
50 mA
ILI
Input Leakage
Current
VIN = 5.5V or Gnd
–10 10
µA
ILO
Output Leakage
Current
VOUT = 5.5 V or Gnd
–10 10
µA
NOTES:
1. CMOS inputs: GND ± 0.3V or VCC ± 0.3V.
2. TTL inputs: VIL 0.8V, VIH 2.0V.
3. These are absolute voltages with respect to device ground pin and include all overshoots due to system and/or tester noise.
Do not attempt to test these values without suitable equipment.
2-32


Part Number WS57C43C
Description HIGH SPEED 4K x 8 CMOS PROM/RPROM
Maker STMicroelectronics
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WS57C43C Datasheet PDF






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