WS57C43C-35CMB - WSI Corporation

WS57C43C

VCC

A10

CS1/VPP

A11

CS2

GND

A10

CS1/VPP

A11

CS2

A5 A6 A7 VCC A8 A9

O1 O2 NC O3 O4 O5

GND

432 28 27 26

12 13 14 15 16 17 18

TOP VIEW

Chip Carrier CERDIP/Plastic DIP

PIN CONFIGURATION

2-31

HIGH SPEED 4K

8 CMOS PROM/RPROM

KEY FEATURES

•Ultra-Fast Access Time • Pin Compatible with 4K x 8 Bipolar PROMs

— tACC = 25 ns •Immune to Latch-UP

— tCS = 12 ns — Up to 200 mA

• Low Power Consumption •ESD Protection Exceeds 2000 V

•Fast Programming •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.

PRODUCT SELECTION GUIDE

PARAMETER 57C43C-25 57C43C-35 57C43C-45 57C43C-55 57C43C-70

Address Access Time (Max) 25 ns 35 ns 45 ns 55 ns 70 ns

CS to Output Valid Time (Max) 12 ns 20 ns 25 ns 25 ns 25 ns

ROW

DECODER

EPROM ARRAY

32,768 BITS

COLUMN

DECODER

SENSE

AMPLIFIERS

CS2

OUTPUTS

CS1/VPP

A0 - A4

COLUMN

ADDRESSES

A5 - A11

ROW

ADDRESSES

BLOCK DIAGRAM

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DC READ CHARACTERISTICS

Over Operating Range. (See Above)

SYMBOL PARAMETER TEST CONDITIONS MIN MAX UNITS

VIL Input Low Voltage (Note 3) –0.1 0.8 V

VIH Input High Voltage (Note 3) 2.0 VCC + 0.3 V

VOL Output Low Voltage IOL = 16 mA 0.4 V

VOH Output High Voltage IOH = –4 mA 2.4 V

VCC = 5.5 V, f = 0 MHz (Note 1), Comm'l 30 mA

ICC1 VCC Active Current Output Not Loaded Industrial 35 mA

(CMOS) Add 3 mA/MHz for AC Operation Military 35 mA

VCC = 5.5 V, f = 0 MHz (Note 1), Comm'l 40 mA

ICC2 VCC Active Current Output Not Loaded Industrial 50 mA

(TTL) Add 3 mA/MHz for AC Operation Military 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

WS57C43C

2-32

OPERATING RANGE

RANGE TEMPERATURE VCC

Commercial 0°C to +70°C +5V ± 10%

Industrial –40°C to +85°C +5V ± 10%

Military –55°C to +125°C +5V ± 10%

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

NOTES: 1. CMOS inputs: GND ± 0.3V or VCC ±0.3V.

2. TTL inputs: VIL

≤0.8V, VIH ≥2.0V.

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.

*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.

PINS CS1/ CS2 VCC OUTPUTS

MODE VPP

Read VIL VIH VCC DOUT

Output Disable VIH X VCC High Z

Output Disable X VIL VCC High Z

Program VPP X VCC DIN

Program Verify VIL VIH VCC DOUT

MODE SELECTION

WS57C43C

2-33

AC READ CHARACTERISTICS

Over Operating Range. (See Above)

PARAMETER SYMBOL 57C43C-25 57C43C-35 57C43C-45 57C43C-55 57C43C-70 UNITS

MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX

Address to Output Delay tACC 25 35 45 55 70

CS1 to Output Delay tCS 12 20 25 25 25 ns

Output Disable to

Output Float*tDF 12 25 25 25 25

Address to Output Hold tOH 0 0 0 0 0

*Sampled, Not 100% Tested.

AC READ TIMING DIAGRAM

VALID

ADDRESSES

OUTPUTS

tACC tOH

tCS

tDF

VALID

WS57C43C

2-34

SYMBOL PARAMETER CONDITIONS TYP(5) MAX UNITS

CIN Input Capacitance VIN = 0V 4 6 pF

COUT Output Capacitance VOUT = 0V 8 12 pF

CVPP VPP Capacitance VPP = 0 V 18 25 pF

CAPACITANCE

(4)

TA= 25°C, f = 1 MHz

30 pF

(INCLUDING SCOPE

AND JIG

CAPACITANCE)

98 Ω

2.01 V

D.U.T.

A.C. TESTING INPUT/OUTPUT WAVEFORMTEST LOAD

(High Impedance Test Systems)

3.0

0.0 1.5 1.5

TEST

POINTS

NOTE: 6. Provide adequate decoupling capacitance as close as possible to this device to achieve the published A.C. and D.C. parameters.

A 0.1 microfarad capacitor in parallel with a 0.01 microfarad capacitor connected between VCC and ground is recommended.

Inadequate decoupling may result in access time degradation or other transient performance failures.

NOTES: 4. This parameter is only sampled and is not 100% tested.

5.Typical values are for TA= 25°C and nominal supply voltages.

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.

2-35

WS57C43C

1.2

1.1

1.0

0.9

0.8 -55 -35 -15 5 25 45 65 85 105 125

AMBIENT TEMPERATURE (°C)

NORMALIZED ICC

1.60

1.40

1.20

1.00

0.80

0.60 4.0 4.5 5.0 5.5 6.0

SUPPLY VOLTAGE (V)

NORMALIZED ICC

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 Taa

40.0

35.0

30.0

25.0

20.0

15.0

10.0

5.0

0.0 0.0 200 400 600 800 1000

CAPACITANCE (pF)

DELTA Taa (ns)

NORMALIZED SUPPLY CURRENT

vs.

SUPPLY VOLTAGE

TYPICAL ACCESS TIME CHANGE

vs.

OUTPUT LOADING

NORMALIZED Taa

vs.

AMBIENT TEMPERATURE

NORMALIZED SUPPLY CURRENT

vs.

AMBIENT TEMPERATURE

PROGRAMMING INFORMATION

DC CHARACTERISTICS

(TA= 25 ± 5°C, VCC = 6.25 V ± 0.25 V, VPP = 12.75 ± 0.25 V)

SYMBOLS PARAMETER MIN MAX UNITS

ILI Input Leakage Current –10 10 µA

(VIN = VCC or Gnd)

IPP VPP Supply Current During 60 mA

Programming Pulse

ICC VCC Supply Current 30 mA

VOL Output Low Voltage During Verify 0.45 V

(IOL = 16 mA)

VOH Output High Voltage During Verify 2.4 V

(IOH = –4 mA)

WS57C43C

2-36

SYMBOLS PARAMETER MIN TYP MAX UNITS

tAS Address Setup Time 2 µs

tDF Chip Disable Setup Time 30 ns

tDS Data Setup Time 2 µs

tPW Program Pulse Width 100 200 µs

tDH Data Hold Time 2 µs

tCS Chip Select Delay 30 ns

tRF VPP Rise and Fall Time 1 µs

NOTES: 8. VPP must not be greater than 13 volts including overshoot.

AC CHARACTERISTICS

(TA= 25 ± 5°C, VCC = 6.25 V ± 0.25 V, VPP = 12.75 ± 0.25 V)

PROGRAMMING WAVEFORM

ADDRESS STABLE

ADDRESSES VIH

VIL

VPP

VIH

VIL

CS1/VPP

DATA

tAS

tDF

tDS tPW tDH tCS

tRF

DATA OUTDATA IN

DON'T CARE

CS2 VIH

VIL

ORDERING INFORMATION

OPERATING WSI

PART NUMBER TEMPERATURE MANUFACTURING

RANGE PROCEDURE

WS57C43C-25D 25 24 Pin CERDIP, 0.6" D1 Comm’l Standard

WS57C43C-25J 25 28 Pin PLDCC J3 Comm’l Standard

WS57C43C-25S 25 24 Pin Plastic DIP, 0.3" S1 Comm’l Standard

WS57C43C-25T 25 24 Pin CERDIP, 0.3" T1 Comm’l Standard

WS57C43C-35CMB*35 28 Pad CLLCC, 0.3" C1 Military MIL-STD-883C

WS57C43C-35D 35 24 Pin CERDIP, 0.6" D1 Comm’l Standard

WS57C43C-35J 35 28 Pin PLDCC J3 Comm’l Standard

WS57C43C-35JI 35 28 Pin PLDCC J3 Industrial Standard

WS57C43C-35S 35 24 Pin Plastic DIP, 0.3" S1 Comm’l Standard

WS57C43C-35T 35 24 Pin CERDIP, 0.3" T1 Comm’l Standard

WS57C43C-35TMB*35 24 Pin CERDIP, 0.3" T1 Military MIL-STD-883C

WS57C43C-45D 45 24 Pin CERDIP, 0.6" D1 Comm’l Standard

WS57C43C-45J 45 28 Pin PLDCC J3 Comm’l Standard

WS57C43C-45JI 45 28 Pin PLDCC J3 Industrial Standard

WS57C43C-45S 45 24 Pin Plastic DIP, 0.3" S1 Comm’l Standard

WS57C43C-45T 45 24 Pin CERDIP, 0.3" T1 Comm’l Standard

WS57C43C-45TI 45 24 Pin CERDIP, 0.3" T1 Industrial Standard

WS57C43C-45TMB*45 24 Pin CERDIP, 0.3" T1 Military MIL-STD-883C

WS57C43C-55D 55 24 Pin CERDIP, 0.6" D1 Comm’l Standard

WS57C43C-55T 55 24 Pin CERDIP, 0.3" T1 Comm’l Standard

WS57C43C-55TMB*55 24 Pin CERDIP, 0.3" T1 Military MIL-STD-883C

WS57C43C-70D 70 24 Pin CERDIP, 0.6" D1 Comm’l Standard

2-37

SPEED PACKAGE PACKAGE

(ns) TYPE DRAWING

WS57C43C

NOTE: The actual part marking will not include the initials "WS."

*SMD product. See section 4 for DESC SMD numbers.

PROGRAMMING/ALGORITHMS/ERASURE/PROGRAMMERS REFER TO

PAGE 5-1

The WS57C43C is programmed using Algorithm D shown on page 5-9.

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