CD74HC221EE4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
Texas Instruments CD74HC221EE4 is a dual non-retriggerable monostable multivibrator in 16-pin PDIP with 2 V to 6 V supply range and 5.2 mA output drive. Offers complementary outputs for flexible pulse generation. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HC221EE4 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2902(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 CD74HC221EE4?
- Dual non-retriggerable monostable multivibrator producing stable output pulses regardless of input pulse width variations
- Wide 2 V to 6 V supply range with 5.2 mA drive current, compatible with both 3.3 V and 5 V logic systems
- Complementary Q and Q-bar outputs on each section allow direct drive of active-high and active-low loads simultaneously
What is CD74HC221EE4 used for?
The CD74HC221EE4 is commonly used in digital timing circuits where precise one-shot pulse generation is required, such as debouncing mechanical switches, generating reset pulses, or creating fixed-width strobes for data latching. Its non-retriggerable design ensures predictable pulse durations even when the triggering input remains active, making it reliable in noisy industrial control environments. The dual-section package allows two independent timing functions in a single 16-pin PDIP, reducing component count in board designs.
What are the specifications of CD74HC221EE4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | NON-RETRIGGERABLE |
| Family | HC/UH |
| JESD-30 Code | R-PDIP-T16 |
| 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 | DIP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Propagation Delay (tpd) | 315ns |
| 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 |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Where can I find the CD74HC221EE4 datasheet?
CD74HC221EE4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD74HC221EE4?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What supply voltage range and output drive current does the CD74HC221EE4 support?
The CD74HC221EE4 operates from 2 V to 6 V supply and provides 5.2 mA output drive current, making it compatible with both 3.3 V and 5 V logic systems without additional buffers.
How does the non-retriggerable design of CD74HC221EE4 differ from retriggerable one-shots in timing applications?
A non-retriggerable monostable like the CD74HC221EE4 ignores new trigger pulses during its output pulse, so the output width stays fixed at the RC-programmed duration regardless of input activity, ensuring deterministic timing in noisy environments with multiple trigger edges.
Can the CD74HC221EE4 replace the older CMOS CD4528B in a 5 V design?
Yes, the CD74HC221EE4 is functionally equivalent to the CD4528B in 5 V systems and offers faster propagation at 6 V supply; both are dual non-retriggerable monostable multivibrators with complementary outputs, but the HC version provides higher switching speed and lower quiescent current.
How many independent timing sections does the CD74HC221EE4 provide, and what package does it use?
The CD74HC221EE4 contains 2 independent monostable sections in a 16-pin PDIP package, allowing designers to implement two separate one-shot timing functions with individual RC networks in a single through-hole component.
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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+ | $0.4353 | $0.44 |
| 12+ | $0.3628 | $4.35 |
| 56+ | $0.2902 | $16.25 |
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