CD74HC4538PWR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments CD74HC4538PWR is a dual retriggerable monostable multivibrator in the HC CMOS family, supplied in a compact 16-pin TSSOP. It operates from 2 V to 6 V with 5.2 mA output sink current and supports both rising and falling edge triggering. Available Pb-free from global distributors with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD74HC4538PWR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1822(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 CD74HC4538PWR?
- Dual retriggerable monostable with independent RC timing per section for flexible pulse-width generation
- Accepts both rising and falling edge trigger inputs, eliminating external inversion logic
- Compact 16-pin TSSOP footprint at 2 V to 6 V supply enables space-efficient pulse-stretching in mixed-voltage designs
What is CD74HC4538PWR used for?
The CD74HC4538PWR is used for pulse stretching, debouncing, and one-shot timing generation in embedded control and industrial systems operating from 2 V to 6 V. Its dual retriggerable sections allow two independent timing channels to be configured with external RC networks, generating precise output pulse widths from microseconds to milliseconds. The TSSOP-16 package is well suited for compact PCBs where monostable timing functions must coexist with other logic in a minimum board area.
What are the specifications of CD74HC4538PWR?
| Pbfree Code | Yes |
| YTEOL | 15 |
| 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 | TR |
| Peak Reflow Temperature (Cel) | 260 |
| 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 | YES |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| 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 | 8542.39.00.90 |
| Country of Origin | Malaysia |
Where can I find the CD74HC4538PWR datasheet?
CD74HC4538PWR Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD74HC4538PWR?
Compatible alternatives and drop-in replacements for CD74HC4538PWR:
Frequently Asked Questions
How is the output pulse width of CD74HC4538PWR set, and what range of pulse durations can it generate?
The output pulse width of the CD74HC4538PWR is determined by an external resistor and capacitor connected to the timing pins, with the relationship t = R x C. Using commonly available components, pulse widths from under 1 µs up to several seconds are achievable, giving designers wide flexibility for debouncing mechanical contacts, generating reset pulses, or stretching short trigger events to a minimum of 5 V logic.
What triggering options does CD74HC4538PWR support, and how does retriggering affect the output pulse?
Each section of the CD74HC4538PWR provides 2 trigger inputs: an active-rising edge input (A) and an active-falling edge input (B), supporting both positive and negative trigger polarities without external inverters. The retriggerable architecture means that if a new edge arrives before the current 5.2 mA-capable output pulse expires, the timing cycle restarts, extending the output high for another full RC period.
For a 3.3 V microcontroller system, is CD74HC4538PWR a direct drop-in or does it require level adaptation?
The CD74HC4538PWR operates across 2 V to 6 V, so it runs natively from a 3.3 V rail without any level-shifting hardware. Trigger inputs accept HC-compatible logic levels at 3.3 V, and the 5.2 mA output drive is sufficient to drive most MCU digital inputs directly in a 16-pin TSSOP layout, making integration straightforward with no additional interface components.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 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
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.1950 | $2.19 |
| 47+ | $1.0975 | $51.58 |
| 100+ | $0.2120 | $21.20 |
| 1000+ | $0.2020 | $202.00 |
| 10000+ | $0.1822 | $1822.00 |
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.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit