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CD74HC4538NSR.A中文资料德州仪器数据手册PDF规格书

CD74HC4538NSR.A
厂商型号

CD74HC4538NSR.A

功能描述

High-Speed CMOS Logic Dual Retriggerable Precision Monostable Multivibrator

文件大小

773.72 Kbytes

页面数量

27

生产厂商 Texas Instruments
企业简称

TI2德州仪器

中文名称

美国德州仪器公司官网

原厂标识
数据手册

下载地址一下载地址二到原厂下载

更新时间

2025-8-3 23:00:00

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CD74HC4538NSR.A规格书详情

特性 Features

• Retriggerable/Resettable Capability

• Trigger and Reset Propagation Delays Independent of

RX, CX

• Triggering from the Leading or Trailing Edge

• Q and Q Buffered Outputs Available

• Separate Resets

• Wide Range of Output Pulse Widths

• Schmitt Trigger Input on A and B Inputs

• Retrigger Time is Independent of CX

• 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

描述 Description

The ’HC4538 and ’HCT4538 are dual

retriggerable/resettable monostable precision multivibrators

for fixed voltage timing applications. An external resistor

(RX) and an external capacitor (CX) control the timing and

the accuracy for the circuit. Adjustment of RX and CX

provides a wide range of output pulse widths from the Q and

Q terminals. The propagation delay from trigger input-tooutput

transition and the propagation delay from reset inputto-

output transition are independent of RX and CX.

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

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

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)

RX, CX; RMIN is 5kΩ. CMIN is 0pF.

供应商 型号 品牌 批号 封装 库存 备注 价格
TI(德州仪器)
24+
TSSOP16
7350
现货供应,当天可交货!免费送样,原厂技术支持!!!
询价
TI(德州仪器)
24+
NA/
8735
原厂直销,现货供应,账期支持!
询价
TI(德州仪器)
2024+
TSSOP-16
500000
诚信服务,绝对原装原盘
询价
TI支持有TP的
24+
TSSOP-16
16500
只做原装正品现货 假一赔十
询价
TI
2025+
TSSOP-16
16000
原装优势绝对有货
询价
TI
24+
N/A
8000
全新原装正品,现货销售
询价
TexasInstruments
18+
ICMULTIVIBMONODUALHS16SO
6580
公司原装现货/欢迎来电咨询!
询价
TI(德州仪器)
23+
N/A
6000
公司只做原装,可来电咨询
询价
TI(德州仪器)
24+
N/A
6000
原厂原装现货订货价格优势终端BOM表可配单提供样品
询价
TI
23+
N/A
7000
询价