CD74HC123PW Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments CD74HC123PW is a dual retriggerable monostable multivibrator in 16-pin TSSOP, operating from 2 V to 6 V with a maximum propagation delay of 23 ns at 5 V. Features independent resets and programmable pulse width via external RC networks. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HC123PW Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5176(MOQ 1)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of CD74HC123PW?
- Dual independent retriggerable monostable circuits with separate reset inputs for precise pulse-width control
- High-speed CMOS HC logic family with propagation delay under 23 ns at 5 V supply
- Wide supply voltage range of 2 V to 6 V for mixed-voltage system compatibility
- Programmable output pulse width using external resistor-capacitor networks from nanoseconds to milliseconds
- 16-pin TSSOP package with 50 pF load capacitance rating enabling compact PCB layouts
What is CD74HC123PW used for?
The CD74HC123PW is ideal for generating precise timing pulses in digital systems such as switch debounce circuits, pulse-width extenders, and frequency dividers operating from 2 V to 6 V. Its dual retriggerable monostable architecture makes it valuable in communication interfaces and microcontroller reset circuits where reliable, repeatable pulse generation at speeds up to 43 MHz is required. Industrial control panels and consumer electronics benefit from its robust HC CMOS noise immunity and compact TSSOP footprint.
What are the specifications of CD74HC123PW?
| YTEOL | 0 |
| Additional Feature | RETRIGGERABLE |
| Family | HC/UH |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | MONOSTABLE MULTIVIBRATOR |
| Max I(ol) | 0.0052A |
| Number of Bits | 2 |
| Number of Data/Clock Inputs | 2 |
| Number of Functions | 2 |
| Output Polarity | COMPLEMENTARY |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.08mA |
| Propagation Delay (tpd) | 480ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Where can I find the CD74HC123PW datasheet?
CD74HC123PW Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD74HC123PW?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What supply voltage range and propagation delay does the CD74HC123PW support?
The CD74HC123PW operates from a 2 V to 6 V supply voltage and achieves a typical propagation delay of 14 ns at 5 V with a 50 pF load, making it one of the faster retriggerable monostable multivibrators in the HC logic family for time-critical digital designs.
How do you set the output pulse width on the CD74HC123PW for a 1 ms timing application?
The output pulse width on the CD74HC123PW is set by connecting an external resistor and capacitor to the Rext and Cext pins, where the pulse width in milliseconds equals approximately 0.28 × R × C. For a 1 ms pulse, a 100 kΩ resistor paired with a 36 nF capacitor provides the target timing, giving designers broad flexibility from nanoseconds to hundreds of milliseconds.
In what applications does the dual-channel CD74HC123PW outperform a single monostable device?
Using the CD74HC123PW's 2-channel architecture saves board space and reduces component count in dual-pulse systems such as RS-485 driver enable sequencers, two-phase stepper motor indexers, and industrial PLC input filter banks operating at 5 V. Each channel has an independent reset input and RC network, so both timing intervals can differ by design without crosstalk.
Is the CD74HC123PW compatible with 3.3 V logic systems commonly used in modern microcontrollers?
Yes, the CD74HC123PW is fully compatible with 3.3 V logic systems since it operates down to 2 V supply and its input thresholds at 3.3 V are within standard HC CMOS levels of approximately 0.9 V (V_IL) and 2.4 V (V_IH). This allows direct interfacing with STM32, NXP LPC, and other 3.3 V microcontroller families without level-shifting resistors.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.6200 | $0.62 |
| 90+ | $0.5610 | $50.49 |
| 180+ | $0.5321 | $95.78 |
| 270+ | $0.5176 | $139.76 |
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