CD74HC4538NSRG4

更新时间： 2024-11-01 05:18:23

品牌	Logo	应用领域
德州仪器 - TI		振荡器
页数	文件大小	规格书
20页	526K
描述
High-Speed CMOS Logic Dual Retriggerable Precision Monostable Multivibrator

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数据手册
替代型号

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CD74HC4538NSRG4 数据手册

CD54HC4538, CD74HC4538,

CD54HCT4538, CD74HCT4538

Data sheet acquired from Harris Semiconductor

SCHS123E

High-Speed CMOS Logic Dual Retriggerable

Precision Monostable Multivibrator

June 1998 - Revised October 2003

Features

Description

• Retriggerable/Resettable Capability

The

’HC4538

and

’HCT4538

are

dual

retriggerable/resettable monostable precision multivibrators

for ﬁxed voltage timing applications. An external resistor

• Trigger and Reset Propagation Delays Independent of

[ /Title

(CD54

HC453

CD74

HC453

CD74

HCT45

38)

/Sub-

ject

R , C

(R ) and an external capacitor (C ) control the timing and

the accuracy for the circuit. Adjustment of R and C

• Triggering from the Leading or Trailing Edge

• Q and Q Buffered Outputs Available

• Separate Resets

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 independent of R and C .

• Wide Range of Output Pulse Widths

• Schmitt Trigger Input on A and B Inputs

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

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

• Fanout (Over Temperature Range)

reset. Unused resets and sections must be terminated. In

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

R , C ; R

is 5kΩ. C is 0pF.

MIN

• Signiﬁcant Power Reduction Compared to LSTTL

Logic ICs

Ordering Information

• HC Types

TEMP. RANGE

- 2V to 6V Operation

PART NUMBER

CD54HC4538F3A

CD54HCT4538F3A

CD74HC4538E

( C)

PACKAGE

16 Ld CERDIP

16 Ld PDIP

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

IL IH CC

-55 to 125

at V

= 5V

• HCT Types

- 4.5V to 5.5V Operation

- Direct LSTTL Input Logic Compatibility,

CD74HC4538M

16 Ld SOIC

16 Ld SOP

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

IL IH

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

OL OH

CD74HC4538MT

CD74HC4538M96

CD74HC4538NSR

CD74HC4538PW

CD74HC4538PWR

CD74HC4538PWT

CD74HCT4538E

CD74HCT4538M

CD74HCT4538MT

CD74HCT4538M96

Pinout

CD54HC4538, CD54HCT4538

(CERDIP)

CD74HC4538

(PDIP, SOIC, SOP, TSSOP)

CD74HCT4538

16 Ld TSSOP

16 Ld PDIP

(PDIP, SOIC)

TOP VIEW

16 Ld SOIC

1R C

15 2C

14 2R C

13 2R

12 2A

11 2B

10 2Q

NOTE: When ordering, use the entire part number. The sufﬁxes 96

and R denote tape and reel. The sufﬁx T denotes a small-quantity

reel of 250.

GND

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

12 3 4 5 6 7...20

中文翻译

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CD74HC4538NSRG4 替代型号

型号	品牌	替代类型	描述	数据表
CD74HC4538M	TI	类似代替	High Speed CMOS Logic Dual Retriggerable Precision Monostable Multivibrator
CD74HC4538E	TI	类似代替	High Speed CMOS Logic Dual Retriggerable Precision Monostable Multivibrator
CD74HC123E	TI	类似代替	High Speed CMOS Logic Dual Retriggerable Monostable Multivibrators with Resets

与CD74HC4538NSRG4相关器件

型号	品牌	获取价格	描述	数据表
CD74HC4538PW	TI	获取价格	High-Speed CMOS Logic Dual Retriggerable Precision Monostable Multivibrator
CD74HC4538PWE4	TI	获取价格	High-Speed CMOS Logic Dual Retriggerable Precision Monostable Multivibrator
CD74HC4538PWG4	TI	获取价格	High-Speed CMOS Logic Dual Retriggerable Precision Monostable Multivibrator
CD74HC4538PWR	TI	获取价格	High-Speed CMOS Logic Dual Retriggerable Precision Monostable Multivibrator
CD74HC4538PWRE4	TI	获取价格	High-Speed CMOS Logic Dual Retriggerable Precision Monostable Multivibrator
CD74HC4538PWRG4	TI	获取价格	High-Speed CMOS Logic Dual Retriggerable Precision Monostable Multivibrator
CD74HC4538PWT	TI	获取价格	High-Speed CMOS Logic Dual Retriggerable Precision Monostable Multivibrator
CD74HC4538PWTE4	TI	获取价格	High-Speed CMOS Logic Dual Retriggerable Precision Monostable Multivibrator
CD74HC4538PWTG4	TI	获取价格	High-Speed CMOS Logic Dual Retriggerable Precision Monostable Multivibrator
CD74HC4538-Q1	TI	获取价格	HIGH-SPEED CMOS LOGIC DUAL RETRIGGERABLE PRECISION MONOSTABLE MULTIVIBRATOR

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