4543.PDF

HCC/HCF4543B

HCC4543B

HCF4543B

BCD-TO-7 SEGMENT LATCH/DECODER/LCD DRIVER

DISPLAY BLANKING OF ALL ILLEGAL INPUT

COMBINATIONS

LATCH STORAGE OF CODE

CAPABILITY OF DRIVING TWO LOW POWER

TTL LOADS, TWO HTL LOADS, OR ONE LOW

POWER SCHOTTKY LOAD OVER THE FULL

RATED-TEMPERATURE RANGE

PIN-FOR-PIN REPLACEMENT FOR THE

HCF4056B (with pin 7 tied to V SS )

DIRECT LED DRIVING CAPABILITY

100% TESTED FOR QUIESCENT CURRENT

AT 20V

MAXIMUM INPUT CURRENT OF 1A AT 18V

OVER FULL PACKAGE-TEMPERATURE

RANGE ; 100nA AT 18V AND 25

(Plastic Package)

(Ceramic Frit Seal Package)

(Micro Package)

(Plastic Chip Carrier)

NOISE MARGIN (full package-temperature

range) = 1V AT V DD =5V

2V AT V DD = 10V

2.5V AT V DD = 15V

5-V, 10-V, AND 15-V PARAMETRIC RATINGS

ORDER CODES :

HCC4543 BF

HCF4543 BM1

HCF4543 BEY

HCF4543 BC1

PIN CONNECTION (top view)

Applications :

INSTRUMENT DISPLAY DRIVER

DASHBOARD DISPLAY DRIVER

COMPUTER/CALCULATOR DISPLAY DRIVER

TIMING DEVICE DRIVER (clocks, watches,

timers)

DESCRIPTION

The HCC/HCF4543B is a BCD-to-seven segment

latch/decoder/driver designed primarily for liquid-

crystal display (LCD) applications. It is also capable

of driving light emitting diode (LED), incandescent,

gas-discharge, and fluorescent displays. This de-

vice is functionally similar to and serves as direct re-

placement for the HCF4056B when pin 7 is

connected to V SS . It differs from the HCF4056B in

that it has a display blanking capability instead of a

level-shifting function and requires only one power

supply. When the HCF4056B is used in the level

shifting mode, two power supplies are required.

When the HCF4543B is used for LCD applications,

a square wave must be applied to the PHASE input

and the backplane of the LCD device. For LED ap-

plications a logic 1 is required at the PHASE input

for common-cathode devices ; a logic 0 is required

for common-anode devices (see truth table).

December 1989

1/12

HCC/HCF4543B

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

V DD * Supply voltage : HCC Types

HCF Types

– 0.5 to + 20

– 0.5 to 18

V i

Input Voltage

– 0.5 to V DD + 0.5

I I

DC Input Current (any one input)

P tot

Total Power Dissipation (per package)

Dissipation per Output Transistor

for T op = Full Package-temperature Range

200

100

T op

Operating Temperature : HCC Types

HCF Types

– 55 to + 125

–40to+85

T stg Storage Temperature

– 65 to + 150

* All Voltage Values are referred to V SS pin voltage.

LOGIC DIAGRAM (1/2 of device shown)

RECOMMENDED OPERATING CONDITIONS

Symbol

Parameter

Value

Unit

V DD Supply Voltage : HCC Types

HCF Types

3to+18

3to+15

V I

Input Voltage

0 to V DD

T op

Operating Temperature : HCC Types

HCF Types

– 55 to + 125

–40to+85

2/12

HCC/HCF4543B

TRUTH TABLE

INPUT CODE

OUTPUT STATE

DISPLAY

CHARACTER

LDI

DCBAa

XXXX0

Blank

XXXX

•••

•

Inverse of Output

Combinations

Above

Display

as above

= Above combinations

* = For liquid-crystal readouts, apply a square wave to Ph.

For common cathode LED readouts, select Ph = 0.

For common anode LED readouts, select Ph = 1.

** = Depends upon the BCD code previously applied when LD = 1.

3/12

X = Don’t care.

•

HCC/HCF4543B

STATIC ELECTRICAL CHARACTERISTICS

Test Conditions

Value

Symbol

Parameter

V I

(V)

V O

(V)

I O

V DD

(V)

C T High

Min. Max. Min. Typ. Max. Min. Max.

T Low

Unit

(

I L

Quiescent

Current

0/5

0.04

150

HCC

Types

0/10

0.04

300

0/15

0.04

600

0/20

100

0.08 100

3000

0/5

0.04

150

HCF

Types

0/10

0.04

300

0/15

0.04

600

V OH Output High

Voltage

0/5

< 1 5

4.95

0/10

< 1 10 9.95

9.95

0/15

< 1 15 14.95

14.95

V OL Output Low

Voltage

5/0

< 1 5

0.05

10/0

< 1 10

0.05

15/0

< 1 15

0.05

V IH Input High

Voltage

0.5/4.5 < 1 5

3.5

1/9

< 1 10

1.5/13.5 < 1 15

V IL Input Low

Voltage

4.5/0.5 < 1 5

1.5

9/1

< 1 10

13.5/1.5 < 1 15

I OH Output

Drive

Current

0/5

2.5

– 1.6

– 1.3 – 2.6

– 0.9

HCC

Types

0/5

4.6

5 – 0.46

– 0.37 – 0.75

– 0.26

0/10

9.5

10 – 0.98

– 0.8 – 1.6

– 0.55

0/15 13.5

15 – 3.33

– 2.7 – 5.4

– 1.9

0/5

2.5

1.3

– 1.1 – 2.6

– 0.9

HCF

Types

0/5

4.6

0.36

– 0.31 – 0.75

– 0.25

0/10

9.5

10 0.81

– 0.68 – 1.6

– 0.54

0/15 13.5

2.7

– 2.3 – 5.4

– 1.84

I OL Output

Sink

Current

0/5

0.4

0.64

0.51

0.36

HCC

Types

0/10

0.5

1.6

1.3

2.6

0.9

0/15

1.5

4.2

3.4

6.8

2.4

0/5

0.4

0.52

0.44

0.36

HCF

Types

0/10

0.5

1.3

1.1

2.6

0.9

0/15

1.5

3.6

3.0

6.8

2.4

I IH ,I IL Input

Leakage

Current

HCC

types

0/18

0.1

10 –5

0.1

Any Input

HCF

types

0/15

0.3

10 -5

0.3

*T Low =–55

C for HCC device : – 40

C for HCF device.

The Noise Margin for both ”1” and ”0” level is : 1V min. with V DD = 5V, 2V min. with V DD = 10V, 2.5V min. with V DD = 15V.

C for HCC device : + 85

4/12

*T High = + 125

HCC/HCF4543B

DYNAMIC ELECTRICAL CHARACTERISTICS (T amb =25

C, C L = 50pF, R L = 200k

typical temperature coefficient for all V DD values is 0.3%/

C, all input rise and fall time = 20ns)

Symbol

Parameter

Test Conditions

V DD (V)

Limits

All packages

Unit

Min.

Typ.

Max.

t PHL Propagation Delay Time

600

200

150

1200

400

300

t PLH

500

200

150

1000

400

300

t THL

Transition Time

180

360

180

130

t TLH

180

360

180

130

t WH

Latch Disable Pulse Width

250

100

125

t SU

Address Setup Time

–5

t H

Address Hold Time

-5

C IN

Input Capacitance

Any Input

7.5

BCD-to-seven-segment latch/decoder/driver functional diagram

5/12

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