CD54HC4538F datasheet(8/11 Pages) TI

8 / 11 page

R to QtPLH

CL = 50pF

4.5

CL = 15pF

Output Transition Time

tTLH, tTHL

CL = 50pF

4.5

Output Pulse Width

RX = 10k, CX = 0.1µF

CL = 50pF

0.63

0.77

0.602

0.798

0.595

0.805

Output Pulse Width Match,

Same Package

±1-

Power Dissipation Capacitance

CPD

CL = 15pF

134

Input Capacitance

CL = 50pF

NOTES:

10. CPD is used to determine the dynamic power consumption, per one shot.

11. PD =(CPD +CX)VCC

2 f

i ∑(CL VCC

2 f

O) where fi = input frequency, fO = output frequency, CL = output load capacitance,

CX = external capacitance VCC = supply voltage assuming fi «

Switching Speciﬁcations CL = 50pF, Input tr, tf = 6ns, RX = 10KΩ, CX = 0 (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 6. HC AND HCU TRANSITION TIMES AND PROPAGA-

TION DELAY TIMES, COMBINATION LOGIC

FIGURE 7. HCT TRANSITION TIMES AND PROPAGATION

DELAY TIMES, COMBINATION LOGIC

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%

CD54HC4538, CD74HC4538, CD74HCT4538

CD54HC4538F bảng dữ liệu(PDF) 8 Page - Texas Instruments

CD54HC4538F bảng dữ liệu(HTML) 8 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11

bảng dữ liệu tải về

Link URL