SN74LS669 データシートの表示（PDF） - ON Semiconductor

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SN74LS669

SYNCHRONOUS 4-BIT UP/DOWN COUNTER

ON Semiconductor 

SN74LS669

DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)

Limits

Symbol

VIH

Parameter

Input HIGH Voltage

Min Typ Max Unit

Test Conditions

2.0

V

Guaranteed Input HIGH Voltage for

All Inputs

54

VIL

Input LOW Voltage

74

0.7

0.8

V

Guaranteed Input LOW Voltage for

All Inputs

VIK

Input Clamp Diode Voltage

−0.65 −1.5

V

VCC = MIN, IIN = − 18 mA

54

2.5

3.5

VOH

Output HIGH Voltage

74

2.7

3.5

V

VCC = MIN, IOH = MAX, VIN = VIH

V

or VIL per Truth Table

54, 74

VOL

Output LOW Voltage

74

Others

Enable T

IIH

Input HIGH Current

Others

Enable T

0.25 0.4

0.35 0.5

20

40

0.1

0.2

V

IOL = 4.0 mA

V

IOL = 8.0 mA

VCC = VCC MIN,

VIN = VIL or VIH

per Truth Table

μA

μA

VCC = MAX, VIN = 2.7 V

mA

VCC = MAX, VIN = 7.0 V

mA

Others

IIL

Input LOW Current

Enable T

−0.4 mA

−0.8

mA

VCC = MAX, VIN = 0.4 V

IOS

Short Circuit Current (Note 1)

− 20

−100 mA VCC = MAX

ICC

Power Supply Current

34

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

mA VCC = MAX

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

Symbol

fMAX

tPLH

tPHL

tPLH

tPHL

tPLH

tPHL

tPLH

tPHL

Parameter

Maximum Clock Frequency

Propagation Delay,

Clock to RCO

Propagation Delay,

Clock to Any Q

Enable to RCO

U/D to RCO

Limits

Min Typ Max

25

32

26

40

40

60

18

27

18

27

11

17

29

45

22

35

26

40

Unit

MHz

ns

ns

ns

ns

Test Conditions

CL = 15 pF

AC SETUP REQUIREMENTS (TA = 25°C)

Symbol

tW

ts

ts

ts

ts

th

Parameter

Clock Pulse Width

Data Setup Time

Enable Setup Time

Load Setup Time

U/D Setup Time

Hold Time, Any Input

Limits

Min Typ Max Unit

20

ns

20

ns

35

ns

25

ns

30

ns

0

ns

Test Conditions

VCC = 5.0 V

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