CD74HC4538EE4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The CD74HC4538EE4 is a dual retriggerable monostable multivibrator from the HC CMOS logic family, operating from 2 V to 6 V with 5.2 mA output drive and 50 pF load capacitance. Each of its two independent one-shot circuits uses external RC components to set pulse width. Available in a 16-pin PDIP package with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD74HC4538EE4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual independent retriggerable one-shot circuits provide two separately programmable pulse-width outputs in a single IC
- Wide 2 V to 6 V operating supply range ensures compatibility with 3.3 V and 5 V CMOS logic systems
- HC CMOS technology delivers low quiescent current and high noise immunity for reliable digital timing applications
- External RC programming of pulse width gives designers precise control over output pulse duration from nanoseconds to seconds
Applications
The CD74HC4538EE4 is widely used for pulse stretching, debouncing mechanical switches, and generating precise time delays in digital logic systems. It is also employed in missing-pulse detection circuits, synchronization stages in industrial controllers, and timing generators for microcontroller peripheral interfaces. Its dual independent channels allow two separate timing functions to be implemented with a single compact 16-pin IC.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Family | HC/UH |
| JESD-30 Code | R-PDIP-T16 |
| 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 | DIP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 0.08mA |
| Propagation Delay (tpd) | 375ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 4.5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| ## CD74HC4538EE4 Alternates Showing results | Image |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Malaysia, Mexico |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD74HC4538EE4:
Frequently Asked Questions
What is a monostable multivibrator and what does the CD74HC4538EE4 do?
A monostable multivibrator produces a single output pulse of programmable duration in response to a trigger event. The CD74HC4538EE4 contains two independent retriggerable one-shot circuits, each generating a pulse whose width is set by an external resistor and capacitor.
What supply voltage range does the CD74HC4538EE4 support?
The CD74HC4538EE4 operates from 2 V to 6 V, making it fully compatible with both 3.3 V and 5 V logic systems without level-shifting, a key advantage of the HC CMOS logic family.
How is the output pulse width configured on the CD74HC4538EE4?
Each channel's output pulse width is determined by an external resistor and capacitor connected to the timing pins. Selecting different R and C values lets designers program pulse durations ranging from nanoseconds to several seconds.
What package does the CD74HC4538EE4 use?
The CD74HC4538EE4 is housed in a 16-pin PDIP (Plastic Dual-In-Line Package) with JESD-30 code R-PDIP-T16, which is breadboard- and socket-compatible for prototyping and through-hole PCB assembly.
What are common applications for the CD74HC4538EE4?
Typical uses include switch debouncing, pulse stretching, missing-pulse detection, digital one-shot timers in PLCs, and synchronization circuits for microcontrollers and FPGAs requiring precise, repeatable timing pulses.
Related Guides
TPS61291DRVR Selection Guide: Low-Quiescent-Current Boost Converters for IoT and Wearables
How to select the TPS61291DRVR and low-Iq boost converters for IoT, wearables, and coin-cell designs. Compares specs, packages, and alternatives from TI, ADI, and Microchip.
May 13, 2026
TMS5704357BZWTQQ1 Selection Guide: Choosing the Right TMS570 Automotive MCU Variant
Compare TMS570 automotive MCU variants by ASIL level, flash, package, and peripherals. Find the right fit from entry-level LQFP to the ASIL-D TMS5704357BZWTQQ1.
May 13, 2026
TI Hercules TMS5704357BZWTQQ1 Design Guide for Automotive ASIL-D and Industrial Functional Safety
Complete integration guide for the TI Hercules TMS5704357BZWTQQ1 dual-core lockstep Cortex-R5F MCU: lockstep CPU, ECC RAM, FlexRay/CAN-FD, and ASIL-D pitfalls.
May 12, 2026
PTN78000WAH Selection Guide: Choosing the Right 1.5 A 36 V Step-Down Power Module
Compare PTN78000WAH against PTN78000WAS, PTN78060WAH, and other 1.5A 36V step-down modules. Covers package, current rating, efficiency, and drop-in replaceability.
May 12, 2026
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
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”