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Discrete Divice
LVMOS
Planar LVMOS Normal Trench LVMOS Split Gate Trench LVMOS Automotive MOSFET
HVMOS
Planar HVMOS Multi-Epi DPMOS Trench DPMOS
IGBT
Planar IGBT Trench IGBT SiC Hybrid IGBT RC IGBT
SiC
SiC MOS
Diode
FRD
IPM
DIP-23/SOP-23
DIP-24
DIP-25
DIP-26
DIP-27
DIP-29
SOP30
SOP-37
IGBT Module
Industrial Module
Automobile module
AC-DC Converter
SSR Flyback Controller IC
PSR Flyback Controller IC
Synchronous Rectifier IC
Non-isolated BUCK/BUCK-BOOST IC
PFC IC
Fast Charging IC
Power Bank Fast Charger IC
Car Charger IC
AC-DC Fast Charging Protocol IC
DC-DC Converter
DC-DC Converter IC
PoE IC
LED Lighting Driver
General Lighting LED Driver
Intelligent Lighting LED Driver
Gate Driver IC
Three-phase Half Bridge Driver
Half Bridge Driver
PFC IGBT Gate Driver
MEMS Sensor
Triaxial Acceleration Sensor
Six- Axis Inertial Sensor
Proximity Detection and Digital Ambient Light Sensor
Heart Rate Sensor
Silicon Microphone Sensor
MCU IC
8bit MCU
32bit MCU
Integrated Driver MCU
Digital Audio/Video
CD SERVO
Audio Decode
Audio Effects Processing
Intelligent Audio
ASIC
Bipolar PWM Controller
Bipolar DC-DC
LDO
Volume and Sound Control Circuit
Hall
Display Drive Circuit
DC Drive Circuit
Gate Drive Circuit
Darlington Circuit
Logic circuit
Optional Amplifier
Comparator
Reference IC
Linear Regulator
Audio Circuit
Logic & Switches
Gate
Buffer/Driver
Voltage Level Translators
Flip-flops/Latches/Registers
Other Logic IC
LED Chip
GaN
GaAs
Discrete Divice
LVMOS
Planar LVMOS Normal Trench LVMOS Split Gate Trench LVMOS Automotive MOSFET
HVMOS
Planar HVMOS Multi-Epi DPMOS Trench DPMOS
IGBT
Planar IGBT Trench IGBT SiC Hybrid IGBT RC IGBT
SiC
SiC MOS
Diode
FRD
IPM
DIP-23/SOP-23
DIP-24
DIP-25
DIP-26
DIP-27
DIP-29
SOP30
SOP-37
IGBT Module
Industrial Module
Automobile module
AC-DC Converter
SSR Flyback Controller IC
PSR Flyback Controller IC
Synchronous Rectifier IC
Non-isolated BUCK/BUCK-BOOST IC
PFC IC
Fast Charging IC
Power Bank Fast Charger IC
Car Charger IC
AC-DC Fast Charging Protocol IC
DC-DC Converter
DC-DC Converter IC
PoE IC
LED Lighting Driver
General Lighting LED Driver
Intelligent Lighting LED Driver
Gate Driver IC
Three-phase Half Bridge Driver
Half Bridge Driver
PFC IGBT Gate Driver
MEMS Sensor
Triaxial Acceleration Sensor
Six- Axis Inertial Sensor
Proximity Detection and Digital Ambient Light Sensor
Heart Rate Sensor
Silicon Microphone Sensor
MCU IC
8bit MCU
32bit MCU
Integrated Driver MCU
Digital Audio/Video
CD SERVO
Audio Decode
Audio Effects Processing
Intelligent Audio
ASIC
Bipolar PWM Controller
Bipolar DC-DC
LDO
Volume and Sound Control Circuit
Hall
Display Drive Circuit
DC Drive Circuit
Gate Drive Circuit
Darlington Circuit
Logic circuit
Optional Amplifier
Comparator
Reference IC
Linear Regulator
Audio Circuit
Logic & Switches
Gate
Buffer/Driver
Voltage Level Translators
Flip-flops/Latches/Registers
Other Logic IC
LED Chip
GaN
GaAs
SLP74AHC123A
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR WITH RESET
Description Main feature Product specification classification Internal block diagram Relevant package outline drawing

    The SLP74AHC123A is a dual retriggerable monostable multivibrator with reset. This edge-triggered multivibrator features output pulse-duration control by three methods. In the first method, the A input is low, and the B input goes high. In the second method, the B input is high, and the A input goes low. In the third method, the A input is low, the B input is high, and the reset (R(—D) input goes high. The basic pulse time is programmed by selection of an external resistor (REXT) and capacitor (CEXT).

    Once triggered, the basic output pulse width may be extended by retriggering the gated low-level-active (nA(—() or high-level-active (nB). By repeating this process, the output pulse period (nQ = HIGH, nQ—= LOW) can be made as long as desired. Pulse duration can be reduced by taking nR—D low, which also inhibits the triggering.

    An internal connection from nR(—D to the input gate makes it possible to trigger the circuit by a positive-going signal at input nR(—D illustrate pulse control by retriggering and early reset. The basic output pulse width is essentially determined by the value of the external timing components REXT and CEXT. When CEXT 10nF, the typical output pulse width is defined as: tW = REXTCEXT, where tW = pulse width in ns; REXT = External resistor in k; CEXT = External capacitor in pF.


Main feature


  • Schmitt-trigger on all inputs

  • Inputs accept voltages higher than VCC

  • Edge triggered from active-high or active-low gated logic inputs

  • Retriggerable for very long pulses

  • Direct reset terminates output pulse

  • ESD protection:

  •  HBM  Exceeds 2000V

  •  CDM  Exceeds1000V

  • Latch-up performance exceeds 100 mA

  • Specified from -40°C to +85°C and from -40°C to +125°C


Ordering Information
Product Name Package form Marking Hazardous Substance Control Packing Type Remarks
SLP74AHC123AEC SOP-16-225-1.27 AHC123A Halogen free Tube
SLP74AHC123AECTR SOP-16-225-1.27 AHC123A Halogen free Tape&Reel
Block Diagram

123A.png

                                     Fig.1 Block diagram