74AHC123A-Q100; 74AHCT123A-Q100

Dual retriggerable monostable multivibrator with reset

The 74AHC123A-Q100; 74AHCT123A-Q100 is a dual retriggerable monostable multivibrator with reset. The basic output pulse width is programmed by selection of external components (R_EXT and C_EXT). Once triggered this basic pulse width may be extended by retriggering either of the edge triggered inputs (nA or (nB). By repeating this process, the output pulse period (nQ = HIGH, nQ = LOW) can be made as long as desired. Alternatively, an output delay can be terminated at any time by a LOW-going edge on input nRD. Inputs are overvoltage tolerant. This feature allows the use of these devices as translators in mixed voltage environments.

This product has been qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1) and is suitable for use in automotive applications.

Features and benefits

Automotive product qualification in accordance with AEC-Q100 (Grade 1)
- Specified from -40 °C to +85 °C and from -40 °C to +125 °C
Wide supply voltage range from 2.0 V to 5.5 V
DC triggered from active HIGH or active LOW inputs
Retriggerable for very long pulses up to 100 % duty factor
Direct reset terminates output pulse
Overvoltage tolerant inputs to 5.5 V
All inputs have a Schmitt-trigger action
High noise immunity
Input levels:
- For 74AHC123A-Q100: CMOS level
- For 74AHCT123A-Q100: TTL level
Latch-up performance exceeds 100 mA per JESD 78 Class II Level A
ESD protection:
- HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V
- CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V
Multiple package options
DHVQFN package with Side-Wettable Flanks enabling Automatic Optical Inspection (AOI) of solder joints

Parametrics

Type number	Product status	V_CC (V)	Logic switching levels	Output drive capability (mA)	t_pd (ns)	Power dissipation considerations	T_amb (°C)	R_th(j-a) (K/W)	Ψ_th(j-top) (K/W)	R_th(j-c) (K/W)	Package name
74AHC123ABQ-Q100	Production	2.0 - 5.5	CMOS	± 8	5.1	low	-40~125	94	14.4	63	DHVQFN16
74AHC123AD-Q100	Production	2.0 - 5.5	CMOS	± 8	5.1	low	-40~125	93	10.1	53	SO16
74AHC123APW-Q100	Production	2.0 - 5.5	CMOS	± 8	5.1	low	-40~125	126	4.8	55.7	TSSOP16
74AHCT123ABQ-Q100	Production	4.5 - 5.5	TTL	± 8	5	low	-40~125	94	14.4	63	DHVQFN16
74AHCT123AD-Q100	Production	4.5 - 5.5	TTL	± 8	5	low	-40~125	93	10.1	53	SO16
74AHCT123APW-Q100	Production	4.5 - 5.5	TTL	± 8	5	low	-40~125	126	4.8	55.7	TSSOP16

Package

Type number	Package	Package information	Reflow-/Wave soldering	Packing	Status	Marking	Orderable part number, (Ordering code (12NC))
74AHC123ABQ-Q100	DHVQFN16 (SOT763-1)	SOT763-1		SOT763-1_115	Active	AC123A	74AHC123ABQ-Q100X ( 9353 009 86115 )
74AHC123AD-Q100	SO16 (SOT109-1)	SOT109-1	SO-SOJ-REFLOW SO-SOJ-WAVE	SOT109-1_118	Active	74AHC123AD	74AHC123AD-Q100J ( 9353 009 74118 )
74AHC123APW-Q100	TSSOP16 (SOT403-1)	SOT403-1	SSOP-TSSOP-VSO-WAVE	SOT403-1_118	Active	AHC123A	74AHC123APW-Q100J ( 9353 009 85118 )
74AHCT123ABQ-Q100	DHVQFN16 (SOT763-1)	SOT763-1		SOT763-1_115	Active	AT123A	74AHCT123ABQ-Q100X ( 9353 009 88115 )
74AHCT123AD-Q100	SO16 (SOT109-1)	SOT109-1	SO-SOJ-REFLOW SO-SOJ-WAVE	SOT109-1_118	Active	74AHCT123AD	74AHCT123AD-Q100J ( 9353 009 75118 )
74AHCT123APW-Q100	TSSOP16 (SOT403-1)	SOT403-1	SSOP-TSSOP-VSO-WAVE	SOT403-1_118	Active	AHT123A	74AHCT123APW-Q100J ( 9353 009 87118 )

Environmental information

Type number	Orderable part number	Chemical content	Leadfree conversion date
74AHC123ABQ-Q100	74AHC123ABQ-Q100X	74AHC123ABQ-Q100	Always Pb-free
74AHC123AD-Q100	74AHC123AD-Q100J	74AHC123AD-Q100	Always Pb-free
74AHC123APW-Q100	74AHC123APW-Q100J	74AHC123APW-Q100	Always Pb-free
74AHCT123ABQ-Q100	74AHCT123ABQ-Q100X	74AHCT123ABQ-Q100	Always Pb-free
74AHCT123AD-Q100	74AHCT123AD-Q100J	74AHCT123AD-Q100	Always Pb-free
74AHCT123APW-Q100	74AHCT123APW-Q100J	74AHCT123APW-Q100	Always Pb-free

Quality and reliability disclaimer

Documentation (10)

File name	Title	Type	Date
74AHC_AHCT123A_Q100	Dual retriggerable monostable multivibrator with reset	Data sheet	2023-09-04
ahct123a	ahct123a IBIS model	IBIS model	2013-04-08
ahc123a	ahc123a IBIS model	IBIS model	2013-04-08
SOT763-1	plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 16 terminals; 0.5 mm pitch; 3.5 mm x 2.5 mm x 1 mm body	Package information	2023-05-11
SO-SOJ-WAVE	Footprint for wave soldering	Wave soldering	2009-10-08
SO-SOJ-REFLOW	Footprint for reflow soldering	Reflow soldering	2009-10-08
WAVE_BG-BD-1	Wave soldering profile	Wave soldering	2021-09-08
SOT109-1	plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.75 mm body	Package information	2023-11-07
SOT403-1	plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.2 mm body	Package information	2023-11-08
SSOP-TSSOP-VSO-WAVE	Footprint for wave soldering	Wave soldering	2009-10-08

Support

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Models

File name	Title	Type	Date
ahct123a	ahct123a IBIS model	IBIS model	2013-04-08
ahc123a	ahc123a IBIS model	IBIS model	2013-04-08

Ordering, pricing & availability

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