Specification	SN74AHC123AMDREP

Current - Output High, Low [custom]	8 mA
Current - Output High, Low [custom]	8 mA
Independent Circuits	2
Logic Type	Monostable
Mounting Type	Surface Mount
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-55 °C
Package / Case	16-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Propagation Delay	7.5 ns
Schmitt Trigger Input	True
Supplier Device Package	16-SOIC
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	2 V

SN74AHC123A-EP Series

Enhanced Product Dual Retriggerable Monostable Multivibrator

Part	Independent Circuits	Propagation Delay	Supplier Device Package	Voltage - Supply [Min]	Voltage - Supply [Max]	Operating Temperature [Min]	Operating Temperature [Max]	Mounting Type	Logic Type	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Package / Case	Package / Case [x]	Package / Case [y]
Texas Instruments SN74AHC123AMDREP	2	7.5 ns	16-SOIC	2 V	5.5 V	-55 °C	125 °C	Surface Mount	Monostable	8 mA	8 mA	16-SOIC	0.154 in	3.9 mm
Texas Instruments SN74AHC123ADGVR	2	7.5 ns	16-TVSOP	2 V	5.5 V	-40 °C	85 °C	Surface Mount	Monostable	8 mA	8 mA	16-TFSOP	0.173 in	4.4 mm
Texas Instruments SN74AHC123APWR	2	7.5 ns	16-TSSOP	2 V	5.5 V	-40 °C	85 °C	Surface Mount	Monostable	8 mA	8 mA	16-TSSOP	0.173 in	4.4 mm
Texas Instruments SN74AHC123APWRG4	2	7.5 ns	16-TSSOP	2 V	5.5 V	-40 °C	85 °C	Surface Mount	Monostable	8 mA	8 mA	16-TSSOP	0.173 in	4.4 mm
Texas Instruments SN74AHC123AMDREPG4	2	7.5 ns	16-SOIC	2 V	5.5 V	-55 °C	125 °C	Surface Mount	Monostable	8 mA	8 mA	16-SOIC	0.154 in	3.9 mm

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 1.60
		10	$ 1.44
		25	$ 1.36
		100	$ 1.16
		250	$ 1.09
		500	$ 0.96
	Digi-Reel®	1	$ 1.60
		10	$ 1.44
		25	$ 1.36
		100	$ 1.16
		250	$ 1.09
		500	$ 0.96
	Tape & Reel (TR)	2500	$ 0.96
Texas Instruments	LARGE T&R	1	$ 1.97
		100	$ 1.63
		250	$ 1.17
		1000	$ 0.88

Description

General part information

SN74AHC123A-EP Series

The SN74AHC123A device is a dual retriggerable monostable multivibrator designed for 2-V to 5.5-V VCCoperation.

This edge-triggered multivibrator features output pulse-duration control by three methods. In the first method, theAinput is low, and the B input goes high. In the second method, the B input is high, and theAinput goes low. In the third method, theAinput is low, the B input is high, and the clear (CLR) input goes high.

The output pulse duration is programmed by selecting external resistance and capacitance values. The external timing capacitor must be connected between Cextand Rext/Cext(positive) and an external resistor connected between Rext/Cextand VCC. To obtain variable pulse durations, connect an external variable resistance between Rext/Cextand VCC. The output pulse duration can be reduced by takingCLRlow.

Documents

Technical documentation and resources

Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A)

Application note

Benefits & Issues of Migrating 5-V and 3.3-V Logic to Lower-Voltage Supplies (Rev. A)

Application note

Selecting the Right Level Translation Solution (Rev. A)

Application note

Semiconductor Packing Material Electrostatic Discharge (ESD) Protection

Application note

CMOS Power Consumption and CPD Calculation (Rev. B)

Application note

Migration From 3.3-V To 2.5-V Power Supplies For Logic Devices

Application note

SN74AHC123AMDREP

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Technical Specifications

SN74AHC123A-EP Series

Pricing

Description

SN74AHC123A-EP Series

Documents

Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A)

Logic Guide (Rev. AB)

Little Logic Guide 2018 (Rev. G)

Designing With the SN74LVC1G123 Monostable Multivibrator (Rev. A)

Texas Instruments Little Logic Application Report

Military Advanced High-Speed CMOS Logic (AHC/AHCT) (Rev. C)

LOGIC Pocket Data Book (Rev. B)

Implications of Slow or Floating CMOS Inputs (Rev. E)

Live Insertion

Advanced High-Speed CMOS (AHC) Logic Family (Rev. C)

How to Select Little Logic (Rev. A)

Understanding and Interpreting Standard-Logic Data Sheets (Rev. C)

AHC/AHCT Designer's Guide February 2000 (Rev. D)

Design Summary for WCSP Little Logic (Rev. B)

TI IBIS File Creation, Validation, and Distribution Processes

SN74AHC123A-EP datasheet (Rev. A)

Benefits & Issues of Migrating 5-V and 3.3-V Logic to Lower-Voltage Supplies (Rev. A)

Selecting the Right Level Translation Solution (Rev. A)

Semiconductor Packing Material Electrostatic Discharge (ESD) Protection

CMOS Power Consumption and CPD Calculation (Rev. B)

Migration From 3.3-V To 2.5-V Power Supplies For Logic Devices

SN74AHC123A-EP Series