CD74HC221MG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments CD74HC221MG4 is a dual non-retriggerable monostable multivibrator in the high-speed CMOS HC logic family with 16-pin SOIC package. Supports 2-bit operation with 50 pF load capacitance and 5.2 mA output current. Available from stock worldwide with competitive pricing.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HC221MG4 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5681(MOQ 680)
- 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 CD74HC221MG4?
- Dual non-retriggerable monostable multivibrator providing two independent one-shot pulse generators in a single 16-pin SOIC package
- High-speed CMOS HC logic family delivering fast switching with 50 pF load capacitance and low power consumption
- 2-bit independent timing outputs with 5.2 mA output current (I_ol) for reliable interfacing with downstream CMOS and TTL logic
- RoHS-compliant (JESD-609 e4) construction suitable for high-reliability and lead-free manufacturing environments
What is CD74HC221MG4 used for?
The CD74HC221MG4 is used in digital timing circuits where a precise one-shot pulse is needed to debounce mechanical switches, generate reset pulses, or create fixed-width strobe signals in microcontroller-based systems. Its dual non-retriggerable configuration is well-suited for noise-immune edge detection in industrial control, instrumentation, and consumer electronics. The 16-pin SOIC package simplifies PCB layout in space-constrained designs requiring two independent timing channels.
What are the specifications of CD74HC221MG4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | NON-RETRIGGERABLE |
| Family | HC |
| 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 | SOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.08mA |
| Propagation Delay (tpd) | 315ns |
| 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 | 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 |
| Country of Origin | Mexico |
Where can I find the CD74HC221MG4 datasheet?
CD74HC221MG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD74HC221MG4?
Compatible alternatives and drop-in replacements for CD74HC221MG4:
Frequently Asked Questions
What distinguishes a non-retriggerable monostable from a retriggerable type, and why does it matter for CD74HC221MG4 timing circuits?
A non-retriggerable monostable ignores any new trigger pulses received during the active output pulse, so the output pulse width stays fixed regardless of input noise. For CD74HC221MG4 this means the timing period defined by the external RC network is stable; with 50 pF load capacitance the device delivers clean, predictable pulses even in noisy digital environments.
How many independent one-shot channels does CD74HC221MG4 provide, and what output current can each drive?
CD74HC221MG4 provides 2 independent monostable channels in a single 16-pin SOIC package. Each output can sink up to 5.2 mA (I_ol), making it capable of directly driving standard CMOS and low-power TTL logic without additional buffer stages, simplifying circuit design for dual-channel timing applications.
In which switch-debounce or pulse-shaping applications is CD74HC221MG4 a preferred choice over an RC low-pass filter?
CD74HC221MG4 is preferred when a clean, fixed-width digital pulse is required rather than a slowed analog edge. For mechanical switch debounce, the one-shot generates a single defined pulse up to the timing set by the external resistor and capacitor, while the RC filter alone cannot guarantee a bounce-free digital output. The 5.2 mA drive strength integrates cleanly into HC-family logic at 2-bit outputs.
What package and logic family does CD74HC221MG4 use, and how does it fit into a mixed 3.3 V and 5 V system?
CD74HC221MG4 uses the 16-pin R-PDSO-G16 SOIC package in the HC high-speed CMOS family, which operates across a 2 V to 6 V supply range. This wide range allows it to interface with both 3.3 V microcontrollers and 5 V legacy logic without level-shifting, simplifying mixed-voltage board designs in consumer and industrial applications.
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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 |
|---|---|---|
| 680+ | $0.5681 | $386.32 |
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