CD74HCT4538ME4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The Texas Instruments CD74HCT4538ME4 is a dual retriggerable precision monostable multivibrator in the high-speed HCT CMOS logic family. It features complementary outputs, 2 data/clock inputs, and 2 independent timer functions in a 16-pin SOP package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HCT4538ME4 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
What are the key features of CD74HCT4538ME4?
- Dual independent retriggerable monostable multivibrators enable simultaneous pulse generation on two separate timing channels
- Complementary Q and Q-bar outputs provide both true and inverted pulse outputs for flexible logic integration
- High-speed HCT CMOS family ensures TTL-compatible input thresholds with CMOS drive capability for mixed-logic systems
- Precision external RC timing network allows accurate pulse width programming from nanoseconds to seconds
What is CD74HCT4538ME4 used for?
The CD74HCT4538ME4 is used in digital timing and pulse-shaping circuits for industrial control, communications, and consumer electronics where retriggerable one-shot operation is required. Its dual-channel design enables independent debouncing of mechanical switches, generation of time delays, and pulse width modulation in logic-level signal conditioning circuits. The HCT logic family compatibility makes it suitable for interfacing between TTL-driven inputs and CMOS logic systems in mixed-voltage designs.
What are the specifications of CD74HCT4538ME4?
| YTEOL | 0 |
| Family | HCT |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Logic IC Type | MONOSTABLE MULTIVIBRATOR |
| Number of Data/Clock Inputs | 2 |
| Number of Functions | 2 |
| Output Polarity | COMPLEMENTARY |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Propagation Delay (tpd) | 83ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| 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 |
| HTS Code | 8542.39.00.60 |
Where can I find the CD74HCT4538ME4 datasheet?
CD74HCT4538ME4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD74HCT4538ME4?
Compatible alternatives and drop-in replacements for CD74HCT4538ME4:
Frequently Asked Questions
How does CD74HCT4538ME4 implement retriggerable timing functions?
The device integrates 2 independent monostable functions with complementary outputs, allowing each timing channel to be triggered again before its active interval ends.
Which circuit applications benefit from its dual-timer architecture?
The 2 functions support pulse stretching, edge detection, missing-pulse monitoring, delays, and switch conditioning in digital control and interface circuits.
What PCB layout considerations apply to the 16-pin SOP package?
Designers should use the verified 16-pin SOP footprint, place supply decoupling close to the package, and route timing components away from noisy switching traces.
Does the fetched record verify RoHS compliance for this logic IC?
The available data does not confirm RoHS status, so procurement should request a current material declaration for the exact 16-pin orderable device.
Which traceability checks matter when sourcing this HCT component?
Buyers should verify manufacturer marking, lifecycle, date code, lot history, and authorized supply for the 2-function device before releasing production inventory.
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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.
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