74LV123-Q100
Dual retriggerable monostable multivibrator with reset
Rev. 1 — 15 January 2024
Product data sheet
1. General description
The 74LV123-Q100 is a dual retriggerable monostable multivibrator with reset. The basic output
pulse width is programmed by selection of external components (REXT and CEXT). 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. Control inputs include clamp diodes. This enables the use of current limiting resistors
to interface inputs to voltages in excess VCC. Schmitt-trigger action at nA and nB inputs makes the
circuit tolerant of slower input rise and fall times.
This product has been qualified to the Automotive Electronics Council (AEC) standard Q100
(Grade 1) and is suitable for use in automotive applications.
2. Features and benefits
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Automotive product qualification in accordance with AEC-Q100 (Grade 1)
Specified from -40 °C to +85 °C and from -40 °C to +125 °C
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Wide supply voltage range from 1.0 V to 5.5 V
CMOS low power dissipation
Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
Optimized for low-voltage applications: 1.0 V to 3.6 V
Accepts TTL input levels between VCC = 2.7 V and VCC = 3.6 V
Typical output ground bounce: < 0.8 V at VCC = 3.3 V and Tamb = 25 °C
Typical HIGH-level output voltage (VOH) undershoot: > 2 V at VCC = 3.3 V and Tamb = 25 °C
DC triggered from active HIGH or active LOW inputs
Retriggerable for very long pulses up to 100 % duty factor
Direct reset terminates output pulses
Schmitt-trigger action on all inputs except for the reset input
Complies with JEDEC standards:
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JESD8-7 (1.65 V to 1.95 V)
JESD8-5 (2.3 V to 2.7 V)
JESD8C (2.7 V to 3.6 V)
JESD36 (4.5 V to 5.5 V)
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ESD protection:
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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
3. Ordering information
Table 1. Ordering information
Type number
Package
Temperature range Name
Description
Version
74LV123D-Q100
-40 °C to +125 °C
SO16
plastic small outline package; 16 leads;
body width 3.9 mm
SOT109-1