Datasheet > 74LVC1G123

74LVC1G123

更新时间： 2024-11-06 00:56:51

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
31页	1230K
描述
Single retriggerable monostable multivibrator

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74LVC1G123 数据手册

74LVC1G123

Single retriggerable monostable multivibrator; Schmitt trigger

inputs

Rev. 4 — 27 November 2013

Product data sheet

1. General description

The 74LVC1G123 is a single retriggerable monostable multivibrator with Schmitt trigger

inputs. Output pulse width is controlled by three methods:

1. The basic pulse is programmed by selection of an external resistor (R_EXT) and

capacitor (C_EXT).

2. Once triggered, the basic output pulse width may be extended by retriggering the

gated active LOW-going edge input (A) or the active HIGH-going edge input (B). By

repeating this process, the output pulse period (Q = HIGH) can be made as long as

desired. Alternatively an output delay can be terminated at any time by a LOW-going

edge on input CLR, which also inhibits the triggering.

3. An internal connection from CLR to the input gates makes it possible to trigger the

circuit by a HIGH-going signal at input CLR.

Inputs can be driven from either 3.3 V or 5 V devices. This feature allows the use of these

devices as translators in a mixed 3.3 V and 5 V environment. Schmitt trigger inputs,

makes the circuit highly tolerant to slower input rise and fall times.

This device is fully specified for partial power-down applications using I_OFF. The I_OFF

circuitry disables the output, preventing the damaging backflow current through the device

when it is powered down.

2. Features and benefits

 Wide supply voltage range from 1.65 V to 5.5 V

 High noise immunity

 24 mA output drive (V_CC= 3.0 V)

 CMOS low power consumption

 DC triggered from active HIGH or active LOW inputs

 Retriggerable for very long pulses up to 100 % duty factor

 Direct reset terminates output pulse

 Schmitt trigger on all inputs

 Complies with JEDEC standard:

 JESD8-7 (1.65 V to 1.95 V)

 JESD8-5 (2.3 V to 2.7 V)

 JESD8-B/JESD36 (2.7 V to 3.6 V)

 Power-on-reset on outputs

 Latch-up performance exceeds 100 mA

 Direct interface with TTL levels

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与74LVC1G123相关器件

型号	品牌	获取价格	描述	数据表
74LVC1G123DC	NXP	获取价格	Single retriggerable monostable multivibrator
74LVC1G123DC	NEXPERIA	获取价格	Single retriggerable monostable multivibrator; Schmitt trigger inputsProduction
74LVC1G123DC-Q100	NEXPERIA	获取价格	Single retriggerable monostable multivibrator Schmitt trigger inputs
74LVC1G123DCTRE4	TI	获取价格	具有施密特触发输入的单路可再触发单稳态多谐振荡器 \| DCT \| 8 \| -40 to 1
74LVC1G123DCTRG4	TI	获取价格	具有施密特触发输入的单路可再触发单稳态多谐振荡器 \| DCT \| 8 \| -40 to 1
74LVC1G123DCTTE4	TI	获取价格	具有施密特触发输入的单路可再触发单稳态多谐振荡器 \| DCT \| 8 \| -40 to 1
74LVC1G123DCTTG4	TI	获取价格	具有施密特触发输入的单路可再触发单稳态多谐振荡器 \| DCT \| 8 \| -40 to 1
74LVC1G123DCURE4	TI	获取价格	SINGLE RETRIGGERABLE MONOSTABLE MULTIVIBRATOR WITH SCHMITT TRIGGER INPUTS
74LVC1G123DCURG4	TI	获取价格	具有施密特触发输入的单路可再触发单稳态多谐振荡器 \| DCU \| 8 \| -40 to 1
74LVC1G123DCUTE4	TI	获取价格	SINGLE RETRIGGERABLE MONOSTABLE MULTIVIBRATOR WITH SCHMITT TRIGGER INPUTS

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