5-61

FAST AND LS TTL DATA

SN54/74LS48

GUARANTEED OPERATING RANGES

Symbol

Parameter

Min

Typ

Max

Unit

VCC

Supply Voltage

54

74

4.5

4.75

5.0

5.0

5.5

5.25

V

TA

Operating Ambient Temperature Range

54

74

– 55

0

25

25

125

70

°C

IOH

Output Current — High

a to g

54, 74

– 100

µA

IOH

Output Current — High

BI / RBO

54, 74

– 50

µA

IOL

Output Current — Low

a to g

54

74

2.0

6.0

mA

IOL

Output Current — Low

BI / RBO

BI / RBO

54

74

1.6

3.2

mA

Symbol

Parameter

Limits

Unit

Test Conditions

Symbol

Parameter

Min

Typ

Max

Unit

Test Conditions

VIH

Input HIGH Voltage

2.0

V

Guaranteed Input HIGH Voltage for

All Inputs

VIL

Input LOW Voltage

54

0.7

V

Guaranteed Input LOW Voltage for

All Inputs

VIL

Input LOW Voltage

74

0.8

V

Guaranteed Input LOW Voltage for

All Inputs

VIK

Input Clamp Diode Voltage

– 1.5

V

VCC = MIN, IIN = – 18 mA

VOH

Output HIGH Voltage

2.4

4.2

µA

VCC = MIN, IOH = – 50 µA,

VIN = VIH or U.L. per Truth Table

VOH

Output HIGH Voltage

2.4

4.2

µA

VCC = MIN, IOH = – 50 µA,

VIN = VIH or U.L. per Truth Table

IO

Output Current a to g

– 1.3

– 2.0

mA

VCC = MIN, VO = 0.85 V

Input Conditioner as for VOH

VOL

Output LOW Voltage a to g

54, 74

0.4

V

IOL = 2.0 mA

VCC = MIN, VIH = 2.0 V

VIL = VIL MAX

VOL

Output LOW Voltage a to g

74

0.5

V

IOL = 6.0 mA

VCC = MIN, VIH = 2.0 V

VIL = VIL MAX

VOL

Output LOW Voltage

BI / RBO

54, 74

0.4

V

IOL = 1.6 mA

VCC = MAX, VIH = 2.0 V

VIL = VIL MAX

VOL

Output LOW Voltage

BI / RBO

74

0.5

V

IOL = 3.2 mA

VCC = MAX, VIH = 2.0 V

VIL = VIL MAX

IIH

Input HIGH Current

(Except BI / RBO)

20

µA

VCC = MAX, VIN = 2.7 V

IIH

Input HIGH Current

(Except BI / RBO)

0.1

mA

VCC = MAX, VIN = 7.0 V

IIL

Input LOW Current

(Except BI / RBO)

– 0.4

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

mA

VCC = MAX

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

Symbol

Parameter

Limits

Unit

Test Conditions

Symbol

Parameter

Min

Typ

Max

Unit

Test Conditions

tPHL

Propagation Delay Time, HIGH-to-LOW

Level Output from A Input

100

ns

CL = 15 pF, RL = 4.0 kΩ

tPLH

Propagation Delay Time, LOW-to-HIGH

Level Output from A Input

100

ns

CL = 15 pF, RL = 4.0 kΩ

tPHL

Propagation Delay Time, HIGH-to-LOW

Level Output from RBI Input

100

ns

CL = 15 pF, RL = 6.0 kΩ

tPLH

Propagation Delay Time, LOW-to-HIGH

Level Output from RBI Input

100

ns

CL = 15 pF, RL = 6.0 kΩ