HC123 datasheet(4/6 Pages) SLS

4 / 6 page

SL74HC123

System Logic

Semiconductor

SLS

AC ELECTRICAL CHARACTERISTICS(C

L=50pF,Input t r=tf=6.0 ns)

VCC

Guaranteed Limit

Symbol

Parameter

°C to

-55

°C

≤85

°C

≤125

°C

Unit

tPLH, tPHL

Maximum Propagation Delay, Input A or B to Q or

Q (Figures 1 and 3)

2.0

4.5

6.0

255

320

385

tPLH, tPHL

Maximum Propagation Delay , CLR to Q or Q

(Figures 2 and 3)

2.0

4.5

6.0

215

270

325

tTLH, tTHL

Maximum Output Transition Time, Any

Output(Figures 2 and 3)

2.0

4.5

6.0

110

CIN

Maximum Input Capacitance

A, B, CLR

CX, RX

Power Dissipation Capacitance

(Per Multivibrator)

Typical @25

°C,V

CC=5.0 V

CPD

Used to determine the no-load dynamic power

consumption:

PD=CPDVCC

2f+I

CCVCC

150

TIMING REQUIREMENTS(C

L=50pF,Input t r=tf=6.0 ns)

VCC

Guaranteed Limit

Symbol

Parameter

°C to

-55

°C

≤85°C

≤125°C

Unit

trec

Minimum Recovery Time,

Inactive to A or B

(Figure 2)

2.0

4.5

6.0

Minimum Pulse Width,

Input A or B (Figure 1)

2.0

4.5

6.0

100

125

150

Minimum Pulse Width,

CLR (Figure 2)

2.0

4.5

6.0

100

125

150

tr, tr

Maximum Input Rise and

Fall Times, CLR

(Figure 2)

2.0

4.5

6.0

1000

500

400

1000

500

400

1000

500

400

A or B (Figure 2)

2.0

4.5

6.0

No Limit

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