Overview
The 74AHC123APW,112 is a dual retriggerable monostable multivibrator with reset, produced by Nexperia USA Inc. This integrated circuit is part of the 74AHC series and is designed to provide flexible pulse generation capabilities. It features a wide supply voltage range, retriggerable inputs, and direct reset functionality, making it versatile for various electronic applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VCC Supply Voltage | 2.0 - 5.5 | V |
| Input Voltage | 0 - 5.5 | V |
| Output Voltage | 0 - VCC | V |
| Ambient Temperature | -40 to +125 | °C |
| Propagation Delay | 5.1 | ns |
| Output Drive Capability | ± 8 | mA |
| Input Capacitance | 5.0 - 10 | pF |
| Output Capacitance | 4.0 | pF |
| Package Type | TSSOP16 | |
| Package Dimensions | 16 leads; body width 4.4 mm |
Key Features
- 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 for high noise immunity
- Input levels: CMOS level for 74AHC123A
- ESD protection: HBM JESD22-A114E exceeds 2000 V, MM JESD22-A115-A exceeds 200 V, CDM JESD22-C101C exceeds 1000 V
- Latch-up performance exceeds 100 mA per JESD 78 Class II Level A
- Compact surface mount package (TSSOP16)
Applications
- Timing and pulse generation circuits
- Signal conditioning and interface applications
- Industrial and consumer electronics
- Automotive and industrial control systems
- Power, computing, and mobile devices
Q & A
- What is the supply voltage range of the 74AHC123APW?
The supply voltage range is from 2.0 V to 5.5 V. - Can the 74AHC123APW be triggered by both HIGH and LOW inputs?
Yes, it can be triggered by both active HIGH and active LOW inputs. - What is the maximum duty factor for the output pulse?
The output pulse can have a duty factor of up to 100%. - How can the output pulse be terminated?
The output pulse can be terminated at any time by a LOW-going edge on the reset input (nRD). - Are the inputs overvoltage tolerant?
Yes, the inputs are overvoltage tolerant up to 5.5 V. - What type of action do the inputs have?
All inputs have a Schmitt-trigger action for high noise immunity. - What is the operating temperature range of the 74AHC123APW?
The operating temperature range is from -40°C to +125°C. - What is the propagation delay of the 74AHC123APW?
The propagation delay is 5.1 ns. - What is the output drive capability of the 74AHC123APW?
The output drive capability is ± 8 mA. - Is the 74AHC123APW compatible with other logic families?
Yes, it is compatible with 74HC, 74HCT, 74AC, and 74ACT logic families.
