CD54HCT377 datasheet(6/19 Pages) TI1

Part #	CD54HCT377

Description	High-Speed CMOS Logic Octal D-Type Flip-Flop

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Manufacturer	TI1 [Texas Instruments]

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6

Maximum Clock Frequency

fMAX

CL =15pF

5

-

50

-

MHz

Power Dissipation Capacitance

(Notes 3, 4)

CPD

CL =15pF

5

-

35

-

pF

NOTES:

3. CPD is used to determine the dynamic power consumption, per flip-flop.

4. PD = VCC

2 f

i (CPD + CL) where fi = Input Frequency, CL = Output Load Capacitance, VCC = Supply Voltage.

Switching Speciﬁcations Input tr, tf = 6ns (Continued)

PARAMETER

SYMBOL

TEST

CONDITIONS

VCC

(V)

25oC

-40oC TO

85oC

-55oC TO 125oC

UNITS

MIN

TYP

MAX

MIN

MAX

MIN

MAX

Test Circuits and Waveforms

FIGURE 1. HC SETUP TIMES, HOLD TIMES, REMOVAL TIME,

AND PROPAGATION DELAY TIMES FOR EDGE

TRIGGERED SEQUENTIAL LOGIC CIRCUITS

FIGURE 2. HCT SETUP TIMES, HOLD TIMES, REMOVAL TIME,

AND PROPAGATION DELAY TIMES FOR EDGE

TRIGGERED SEQUENTIAL LOGIC CIRCUITS

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

IC

CL

50pF

tSU(L)

tH(H)

trCL

tfCL

GND

3V

GND

3V

1.3V

2.7V

0.3V

GND

CLOCK

INPUT

DATA

INPUT

OUTPUT

SET, RESET

OR PRESET

3V

1.3V

90%

10%

1.3V

90%

tREM

tPLH

tSU(H)

tTLH

tTHL

tH(L)

tPHL

IC

CL

50pF

tSU(L)

1.3V

tH(H)

1.3V

CD54HC377, CD74HC377, CD54HCT377, CD74HCT377

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