SN74LV221ADBRE4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments SN74LV221ADBRE4 is a dual monostable multivibrator IC from the LV logic family in a 16-pin SSOP package. It provides two independent one-shot pulse generators with complementary Q and Q-bar outputs and retriggerable inputs. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- SN74LV221ADBRE4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual monostable multivibrator with two independent retriggerable one-shot pulse generator circuits
- Complementary Q and Q-bar outputs per channel for direct interface with positive and negative logic systems
- LV/LV-A family supports wide supply voltage range for compatibility with modern low-voltage digital systems
- Compact 16-pin SSOP package (0.3-inch body width) minimizes PCB area in timing and pulse-shaping circuits
Applications
The SN74LV221ADBRE4 is used for pulse width generation, signal debouncing, and timing control in digital circuits requiring precise one-shot pulse generation. Its dual-channel architecture allows simultaneous generation of two independently timed pulses, making it suitable for sequencing circuits, missing pulse detectors, and switch debounce circuits in industrial and consumer electronics. The complementary outputs enable direct drive of complementary logic signals in clock generation and synchronization applications.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Family | LV/LV-A/LVX/H |
| JESD-30 Code | R-PDSO-G16 |
| 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 | SSOP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Propagation Delay (tpd) | 42ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 2.5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74LV221ADBRE4:
Monostable Multivibrator, LV/LV-A/LVX/H Series, 2-Func, CMOS, PDSO16
Frequently Asked Questions
What is a monostable multivibrator and how does the SN74LV221ADBRE4 work?
A monostable multivibrator (one-shot) generates a single fixed-width output pulse in response to an input trigger event. The SN74LV221ADBRE4 contains two independent one-shot circuits, each producing a pulse whose width is determined by external resistor and capacitor values connected to timing pins, allowing programmable pulse durations from nanoseconds to seconds.
How many independent multivibrator channels does the SN74LV221ADBRE4 have?
The SN74LV221ADBRE4 contains two independent monostable multivibrator channels (dual function), each with its own trigger inputs and complementary Q and Q-bar outputs. Both channels can be triggered simultaneously or independently with different external RC timing components to generate different pulse widths.
What package is the SN74LV221ADBRE4 available in?
The SN74LV221ADBRE4 is packaged in a 16-pin SSOP (Shrink Small Outline Package) with 0.3-inch body width, identified by JESD-30 code R-PDSO-G16. The compact SSOP package is suitable for space-constrained PCB designs requiring surface-mount timing circuits.
Is the SN74LV221ADBRE4 retriggerable?
Yes, the SN74LV221ADBRE4 is a retriggerable monostable multivibrator, meaning a new input trigger event during an active output pulse will restart the timing cycle from the beginning. This retriggerable behavior is useful for missing pulse detection and watchdog timer circuits where the output should remain active as long as input pulses continue arriving.
What are typical applications for the SN74LV221ADBRE4?
Typical applications include pulse width adjustment and stretching, switch and relay contact debouncing, missing pulse detection, clock synchronization circuits, monostable timing for sequencing logic, and generating reset pulses in digital systems. The dual-channel design is particularly useful when two independently timed one-shot outputs are needed from a single compact package.
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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.
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