CD74HCT4024 datasheet(1/7 Pages) TI

部件名	CD74HCT4024

功能描述	High Speed CMOS Logic 7-Stage Binary Ripple Counter

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制造商	TI [Texas Instruments]

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Data sheet acquired from Harris Semiconductor

SCHS202

Features

• Fully Static Operation

• Buffered Inputs

• Common Reset

• Negative Edge Clocking

• Typical fMAX = 60 MHz at VCC = 5V, CL = 15pF,

TA = 25

oC

• Fanout (Over Temperature Range)

- Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads

- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads

• Wide Operating Temperature Range . . . -55oC to 125oC

• Balanced Propagation Delay and Transition Times

• Signiﬁcant Power Reduction Compared to LSTTL

Logic ICs

• HC Types

- 2V to 6V Operation

- High Noise Immunity: NIL = 30%, NIH = 30% of VCC

at VCC = 5V

• HCT Types

- 4.5V to 5.5V Operation

- Direct LSTTL Input Logic Compatibility,

VIL= 0.8V (Max), VIH = 2V (Min)

- CMOS Input Compatibility, Il ≤ 1µA at VOL, VOH

Description

The Harris CD74HC4024 and CD74HCT4024 are 7-stage

ripple-carry binary counters. All counter stages are master-

slave ﬂip-ﬂops. The state of the stage advances one count

on the negative transition of each input pulse; a high voltage

level on the MR line resets all counters to their zero state. All

inputs and outputs are buffered.

Pinout

CD74HC4024, CD74HCT4024

(PDIP, SOIC)

TOP VIEW

Ordering Information

PART NUMBER

TEMP. RANGE (oC)

PACKAGE

PKG.

NO.

CD74HC4024E

-55 to 125

14 Ld PDIP

E14.3

CD74HCT4024M

-55 to 125

14 Ld SOIC

M14.15

CP

MR

Q7

Q6

Q5

Q4

GND

VCC

NC

Q1’

Q2

NC

Q3

NC

1

2

3

4

5

6

7

14

13

12

11

10

9

8

November 1997

CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.

Copyright

File Number

1683.1

CD74HC4024,

CD74HCT4024

High Speed CMOS Logic

7-Stage Binary Ripple Counter

[ /Title

(CD74

HC402

4,

CD74

HCT40

24)

/Sub-

ject

(High

Speed

CMOS

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