CD74HC221M96E4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments CD74HC221M96E4 is a dual non-retriggerable monostable multivibrator in a 16-pin SOIC package. It supports supply voltages from 2 V to 6 V with output pulse widths programmable via external RC networks. Available in tape-and-reel packaging for automated assembly with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD74HC221M96E4 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2405(MOQ 12500)
- 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 CD74HC221M96E4?
- Dual non-retriggerable monostable multivibrator: two independent one-shot timing channels in a single 16-pin package prevent false re-triggering during pulse generation
- Wide supply voltage range from 2 V to 6 V enables compatibility with 3.3 V and 5 V logic systems without additional level shifting
- Programmable output pulse width via external R/C network allows timing from nanoseconds to seconds for flexible timing circuit design
- HC/UH logic family with 50 pF load capacitance rating and 5.2 mA max IOL output drive current suits high-speed bus and timing applications
What is CD74HC221M96E4 used for?
The CD74HC221M96E4 is widely used in pulse generation and timing circuits in industrial control systems, requiring precisely defined pulse widths independent of input signal duration. It is suitable for debouncing mechanical switches and generating one-shot pulses in microcontroller-based designs operating at 3.3 V or 5 V. The device also finds application in communication interfaces and sequential logic where glitch-free, non-retriggerable timing control is essential.
What are the specifications of CD74HC221M96E4?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | NON-RETRIGGERABLE |
| 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 | SOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| 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) | 4.5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| 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 CD74HC221M96E4 datasheet?
CD74HC221M96E4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD74HC221M96E4?
Compatible alternatives and drop-in replacements for CD74HC221M96E4:
Frequently Asked Questions
What output pulse width range can CD74HC221M96E4 achieve with external RC components?
The CD74HC221M96E4 allows programmable output pulse widths through an external resistor-capacitor (R/C) network connected to the timing pins. Depending on the R and C values chosen, pulse widths can range from a few nanoseconds to several seconds, providing flexible timing for a wide range of applications requiring precise one-shot pulse generation.
Which supply voltages does CD74HC221M96E4 support, and how does this affect 3.3 V system compatibility?
The CD74HC221M96E4 operates from 2 V to 6 V supply voltage, making it fully compatible with both 3.3 V and 5 V logic systems. This broad operating range means designers can use the device in modern low-power 3.3 V microcontroller designs without external level-shifting components, reducing BOM count and board space.
How does the non-retriggerable design of CD74HC221M96E4 benefit switch debouncing circuits?
Because CD74HC221M96E4 is non-retriggerable, once a timing cycle starts, subsequent input transitions during the output pulse are ignored. This characteristic is ideal for debouncing mechanical switches where contact bounce can produce multiple spurious edges within microseconds. The output remains stable for the programmed 50 pF-load-rated pulse duration, delivering a clean single pulse to the system.
What is the maximum output low current (IOL) rating of CD74HC221M96E4, and what does it mean for fan-out?
The CD74HC221M96E4 has a maximum output low current (IOL) of 5.2 mA. This rating determines how many standard HC-logic inputs the device can drive simultaneously. With typical HC inputs drawing around 1 µA, the device can fan out to dozens of inputs, but the 5.2 mA limit governs driving higher-current loads such as LEDs or bus lines.
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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 |
|---|---|---|
| 12500+ | $0.2450 | $3062.38 |
| 17500+ | $0.2427 | $4247.25 |
| 25000+ | $0.2405 | $6012.25 |
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