CD74HC4538

更新时间： 2024-11-23 23:04:27

品牌	Logo	应用领域
德州仪器 - TI		振荡器
页数	文件大小	规格书
11页	66K
描述
High Speed CMOS Logic Dual Retriggerable Precision Monostable Multivibrator

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中文翻译

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数据手册
替代型号

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CD74HC4538 数据手册

CD54HC4538, CD74HC4538,

CD74HCT4538

Data sheet acquired from Harris Semiconductor

SCHS123

High Speed CMOS Logic Dual Retriggerable

Precision Monostable Multivibrator

June 1998

Features

Description

• Retriggerable/Resettable Capability

The

Harris

CD54HC4538,

CD74HC4538

and

CD74HCT4538 are dual retriggerable/resettable monostable

precision multivibrators for ﬁxed voltage timing applications.

• Trigger and Reset Propagation Delays Independent of

[ /Title

(CD54

HC453

CD74

HC453

CD74

HCT45

38)

/Sub-

ject

R , C

An external resistor (R ) and an external capacitor (C )

control the timing and the accuracy for the circuit.

• Triggering from the Leading or Trailing Edge

• Q and Q Buffered Outputs Available

• Separate Resets

Adjustment of R and C provides a wide range of output

pulse widths from the Q and Q terminals. The propagation

delay from trigger input-to-output transition and the

propagation delay from reset input-to-output transition are

• Wide Range of Output-Pulse Widths

• Schmitt Trigger Input on A and B Inputs

independent of R and C .

Leading-edge triggering (A) and trailing edge triggering (B)

inputs are provided for triggering from either edge of the

input pulse. An unused “A” input should be tied to GND and

• Retrigger Time is Independent of C

• Fanout (Over Temperature Range)

an unused B should be tied to V . On power up the IC is

- Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads reset. Unused resets and sections must be terminated. In

normal operation the circuit retriggers on the application of

each new trigger pulse. To operate in the non-triggerable

mode Q is connected to B when leading edge triggering (A)

is used or Q is connected to A when trailing edge triggering

(B) is used. The period (τ) can be calculated from τ = (0.7)

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

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

• Balanced Propagation Delay and Transition Times

(High

Speed

CMOS

Logic

• Signiﬁcant Power Reduction Compared to LSTTL

Logic ICs

R , C ; R

is 5kΩ. C

is 0pF.

MIN

Ordering Information

• HC Types

- 2V to 6V Operation

TEMP. RANGE

PKG.

NO.

- High Noise Immunity: N = 30%, N = 30% of V

IL IH CC

PART NUMBER

CD54HC4538F

CD74HC4538E

CD74HCT4538E

CD74HC4538M

CD74HCT4538M

NOTES:

( C)

PACKAGE

at V

= 5V

-55 to 125

16 Ld CERDIP F16.3

• HCT Types

16 Ld PDIP

16 Ld SOIC

E16.3

- 4.5V to 5.5V Operation

- Direct LSTTL Input Logic Compatibility,

E16.3

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

IL IH

M16.15

- CMOS Input Compatibility, I ≤ 1µA at V , V

OL OH

Pinout

1. When ordering, use the entire part number. Add the sufﬁx 96 to

obtain the variant in the tape and reel.

CD54HC4538, CD74HC4538, CD74HCT4538

(PDIP, SOIC, CERDIP)

TOP VIEW

2. Wafer and die for this part number is available which meets all

electrical specifications. Please contact your local sales office or

Harris customer service for ordering information.

16 V

1R C

15 2C

14 2R C

13 2R

12 2A

11 2B

10 2Q

GND

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

File Number 1671.2

12 3 4 5 6 7...11

中文翻译

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CD74HC4538 替代型号

型号	品牌	替代类型	描述	数据表
CD74HC4538-Q1	TI	功能相似	HIGH-SPEED CMOS LOGIC DUAL RETRIGGERABLE PRECISION MONOSTABLE MULTIVIBRATOR
CD54HC4538	TI	功能相似	High Speed CMOS Logic Dual Retriggerable Precision Monostable Multivibrator

与CD74HC4538相关器件

型号	品牌	获取价格	描述	数据表
CD74HC4538E	TI	获取价格	High Speed CMOS Logic Dual Retriggerable Precision Monostable Multivibrator
CD74HC4538E	RENESAS	获取价格	HC/UH SERIES, DUAL MONOSTABLE MULTIVIBRATOR, PDIP16
CD74HC4538EE4	TI	获取价格	High-Speed CMOS Logic Dual Retriggerable Precision Monostable Multivibrator
CD74HC4538EN	ETC	获取价格	Logic IC
CD74HC4538EX	ROCHESTER	获取价格	Monostable Multivibrator, HC/UH Series, 2-Func, CMOS, PDIP16
CD74HC4538F	ETC	获取价格	Logic IC
CD74HC4538H	ETC	获取价格	Monostable Multivibrator
CD74HC4538M	TI	获取价格	High Speed CMOS Logic Dual Retriggerable Precision Monostable Multivibrator
CD74HC4538M	RENESAS	获取价格	HC/UH SERIES, DUAL MONOSTABLE MULTIVIBRATOR, PDSO16
CD74HC4538M96	TI	获取价格	High-Speed CMOS Logic Dual Retriggerable Precision Monostable Multivibrator

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