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SN54LS48

BCD TO 7-SEGMENT DECODER

Motorola => Freescale 

SN54 / 74LS48

GUARANTEED OPERATING RANGES

Symbol

Parameter

VCC

Supply Voltage

TA

Operating Ambient Temperature Range

IOH

Output Current — High

a to g

IOH

Output Current — High

BI / RBO

IOL

Output Current — Low

a to g

IOL

Output Current — Low

BI / RBO

BI / RBO

Min

Typ

Max

Unit

54

4.5

5.0

5.5

V

74

4.75

5.0

5.25

54

– 55

25

125

°C

74

0

25

70

54, 74

– 100

µA

54, 74

– 50

µA

54

2.0

mA

74

6.0

54

1.6

mA

74

3.2

DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)

Symbol

Parameter

Limits

Min Typ Max Unit

Test Conditions

VIH

Input HIGH Voltage

2.0

Guaranteed Input HIGH Voltage for

V

All Inputs

54

VIL

Input LOW Voltage

74

0.7

Guaranteed Input LOW Voltage for

0.8

V

All Inputs

VIK

VOH

Input Clamp Diode Voltage

Output HIGH Voltage

– 1.5

V

VCC = MIN, IIN = – 18 mA

2.4

4.2

µA

VCC = MIN, IOH = – 50 µA,

VIN = VIH or U.L. per Truth Table

IO

VOL

VOL

IIH

IIL

Output Current a to g

Output LOW Voltage a to g

Output LOW Voltage

BI / RBO

Input HIGH Current

(Except BI / RBO)

Input LOW Current

(Except BI / RBO)

54, 74

74

54, 74

74

– 1.3

– 2.0

0.4

0.5

0.4

0.5

20

0.1

– 0.4

mA

VCC = MIN, VO = 0.85 V

Input Conditioner as for VOH

V

IOL = 2.0 mA

VCC = MIN, VIH = 2.0 V

V

IOL = 6.0 mA

VIL = VIL MAX

V

IOL = 1.6 mA

VCC = MAX, VIH = 2.0 V

V

IOL = 3.2 mA

VIL = VIL MAX

µA VCC = MAX, VIN = 2.7 V

mA VCC = MAX, VIN = 7.0 V

mA VCC = MAX, VIN = 0.4 V

IIL

Input LOW Current BI/ RBO

– 1.2 mA VCC = MAX, VIN = 0.4 V

ICC

Power Supply Current

25

38

mA VCC = MAX

IOS

Short Circuit Current BI/ RBO (Note 1) – 0.3

–2.0

Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.

mA VCC = MAX

AC CHARACTERISTICS (VCC = 5.0 V, TA = 25°C)

Limits

Symbol

Parameter

Min Typ Max Unit

tPHL

Propagation Delay Time, HIGH-to-LOW

Level Output from A Input

100

ns

tPLH

Propagation Delay Time, LOW-to-HIGH

Level Output from A Input

100

ns

tPHL

Propagation Delay Time, HIGH-to-LOW

Level Output from RBI Input

100

ns

tPLH

Propagation Delay Time, LOW-to-HIGH

Level Output from RBI Input

100

ns

Test Conditions

CL = 15 pF, RL = 4.0 kΩ

CL = 15 pF, RL = 6.0 kΩ

FAST AND LS TTL DATA

5-61

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