CD74HC166 datasheet(7/13 Pages) TI

7 / 13 page

FIGURE 3. HC AND HCU TRANSITION TIMES AND PROPAGA-

TION DELAY TIMES, COMBINATION LOGIC

FIGURE 4. HCT TRANSITION TIMES AND PROPAGATION

DELAY TIMES, COMBINATION LOGIC

FIGURE 5. HC SETUP TIMES, HOLD TIMES, REMOVAL TIME,

AND PROPAGATION DELAY TIMES FOR EDGE

TRIGGERED SEQUENTIAL LOGIC CIRCUITS

FIGURE 6. HCT SETUP TIMES, HOLD TIMES, REMOVAL TIME,

AND PROPAGATION DELAY TIMES FOR EDGE

TRIGGERED SEQUENTIAL LOGIC CIRCUITS

Test Circuits and Waveforms (Continued)

tPHL

tPLH

tTHL

tTLH

90%

50%

10%

50%

10%

INVERTING

OUTPUT

INPUT

GND

VCC

tr = 6ns

tf = 6ns

90%

tPHL

tPLH

tTHL

tTLH

2.7V

1.3V

0.3V

1.3V

10%

INVERTING

OUTPUT

INPUT

GND

tr = 6ns

tf = 6ns

90%

trCL

tfCL

GND

VCC

GND

VCC

50%

90%

10%

GND

CLOCK

INPUT

DATA

INPUT

OUTPUT

SET, RESET

OR PRESET

VCC

50%

90%

10%

50%

90%

tREM

tPLH

tSU(H)

tTLH

tTHL

tH(L)

tPHL

50pF

tSU(L)

tH(H)

trCL

tfCL

GND

1.3V

2.7V

0.3V

GND

CLOCK

INPUT

DATA

INPUT

OUTPUT

SET, RESET

OR PRESET

1.3V

90%

10%

1.3V

90%

tREM

tPLH

tSU(H)

tTLH

tTHL

tH(L)

tPHL

50pF

tSU(L)

1.3V

tH(H)

1.3V

CD54HC166, CD74HC166, CD54HCT166, CD74HCT166

CD74HC166 데이터시트(PDF) 7 Page - Texas Instruments

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