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Product Detailed Parameters
- Description：IC MULTIVIBRATOR 7.5NS 16TVSOP
- Series：74AHC
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Logic Type：Monostable
- Independent Circuits：2
- Schmitt Trigger Input：Yes
- Propagation Delay：7.5 ns
- Current - Output High, Low：8mA, 8mA
- Voltage - Supply：2 V ~ 5.5 V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：16-TFSOP (0.173", 4.40mm Width)
- Supplier Device Package：16-TVSOP
- Grade：-
- Qualification：-
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Overview
The SN74AHC123ADGVRE4 is a dual retriggerable monostable multivibrator from the AHC logic series, housed in a 16-pin TVSOP package. It operates within a supply voltage range of 2V to 5.5V and supports an operating temperature range of -40°C to +85°C. The device features Schmitt-trigger circuitry on inputs for slow transition rates and edge triggering from active-high or active-low gated logic inputs. Propagation delays are specified at 24.1 ns and 14 ns under standard conditions.
Feature Summary
- Dual retriggerable monostable multivibrators designed for 2V to 5.5V VCC operation
- Schmitt-trigger circuitry on A, B, and CLR inputs for slow input transition rates
- Edge triggered from active-high or active-low gated logic inputs
- Glitch-free power-up reset on outputs
Applications
- Pulse generation and timing circuits
- Debouncing switches
- Frequency division
- Timing delay applications
Procurement Notes
Verify the specific ordering suffix 'E4' corresponds to lead-free packaging and RoHS compliance as defined by Texas Instruments. Confirm the TVSOP-16 package dimensions match the design footprint requirements. Ensure the operating temperature range of -40°C to +85°C aligns with the target environmental specifications before finalizing procurement.
Selection Notes
Select this component when dual independent monostable circuits are required in a compact surface-mount form factor. The AHC series offers high-speed performance suitable for modern digital systems. Verify that the external timing components (resistor and capacitor) can provide the necessary pulse duration based on the datasheet formulas. Consider the 2V to 5.5V supply range compatibility with the system voltage rails.
Part Context
This part belongs to the SNx4AHC123A family of dual retriggerable monostable multivibrators. The 'DGV' designation indicates the 16-pin Thin Visual Small Outline Package (TVSOP). The 'RE4' suffix typically denotes reel packaging and lead-free/RoHS compliant manufacturing processes, distinguishing it from tube-packaged or non-compliant variants within the same logical function family.
Replacement Considerations
SN74AHC123ADGVR
FAQ
How is the output pulse duration determined?
The output pulse duration is programmed by selecting external resistance and capacitance values connected between the Rext/Cext and Cext terminals.
Can the output pulse be terminated early?
Yes, the clear (CLR) input overrides the A or B inputs; driving CLR low terminates the output pulse immediately.
