Part Details for SN74LS221DBR by Texas Instruments
Results Overview of SN74LS221DBR by Texas Instruments
- Distributor Offerings: (4 listings)
- Number of FFF Equivalents: (0 replacements)
- Tariff Estimator: (Available) NEW
- Number of Functional Equivalents: (0 options)
- CAD Models: (Available)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
SN74LS221DBR Information
SN74LS221DBR by Texas Instruments is a Prescaler/Multivibrator.
Prescaler/Multivibrators are under the broader part category of Logic Components.
Digital logic governs the behavior of signals in electronic circuits, enabling complex decisions based on simple binary inputs (yes/no). Logic components perform operations from these signals. Read more about Logic Components on our Logic part category page.
Price & Stock for SN74LS221DBR
| Part # | Distributor | Description | Stock | Price | Buy | |
|---|---|---|---|---|---|---|
|
DISTI #
296-29135-2-ND
|
DigiKey | IC MMV 2-CIR 45-NS 16-SSOP Min Qty: 2000 Container: Tape & Reel |
0 Tape & Reel |
|
$0.9071 | Buy Now |
|
DISTI #
595-SN74LS221DBR
|
Mouser Electronics | Monostable Multivibrator Dual w/Schmitt-trgr inputs RoHS: Compliant | 1328 |
|
$0.8430 / $1.4200 | Buy Now |
|
|
Sense Electronic Company Limited | SSOP | 1743 |
|
RFQ | |
|
|
Vyrian | Monostable Multivibrator, LS Series, 2-Func, TTL, PDSO16 | 7611 |
|
RFQ |
US Tariff Estimator: SN74LS221DBR by Texas Instruments
Calculations from this tool are estimations only for imports into the United States. Please refer to the distributor or manufacturer and reference official US government sources and authorities to verify any final purchase costs.
SN74LS221DBR CAD Models
-
Part Symbol
-
Footprint
-
3D Model
Available Download Formats
By downloading CAD models, you agree to our Terms & Conditions and Privacy Policy
SN74LS221DBR Part Data Attributes
|
|
SN74LS221DBR
Texas Instruments
Buy Now
Datasheet
|
Compare Parts:
SN74LS221DBR
Texas Instruments
Monostable Multivibrator, LS Series, 2-Func, TTL, PDSO16
|
| Pbfree Code | Yes | |
| Rohs Code | Yes | |
| Part Life Cycle Code | Active | |
| Part Package Code | SOIC | |
| Pin Count | 16 | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.90 | |
| Family | Ls | |
| JESD-30 Code | R-PDSO-G16 | |
| JESD-609 Code | e4 | |
| Length | 6.2 Mm | |
| Load Capacitance (CL) | 15 Pf | |
| Logic IC Type | Monostable Multivibrator | |
| Max Frequency@Nom-Sup | 80 Hz | |
| Max I(ol) | 0.008 A | |
| Moisture Sensitivity Level | 1 | |
| Number of Bits | 2 | |
| Number of Data/Clock Inputs | 2 | |
| Number of Functions | 2 | |
| Number of Terminals | 16 | |
| Operating Temperature-Max | 70 °C | |
| Operating Temperature-Min | ||
| Output Polarity | Complementary | |
| Package Body Material | Plastic/Epoxy | |
| Package Code | SSOP | |
| Package Equivalence Code | SSOP16,.3 | |
| Package Shape | Rectangular | |
| Package Style | Small Outline, Shrink Pitch | |
| Packing Method | Tr | |
| Peak Reflow Temperature (Cel) | 260 | |
| Power Supply Current-Max (ICC) | 27 Ma | |
| Propagation Delay (tpd) | 80 Ns | |
| Qualification Status | Not Qualified | |
| Schmitt Trigger | Yes | |
| Seated Height-Max | 2 Mm | |
| Supply Voltage-Max (Vsup) | 5.25 V | |
| Supply Voltage-Min (Vsup) | 4.75 V | |
| Supply Voltage-Nom (Vsup) | 5 V | |
| Surface Mount | Yes | |
| Technology | Ttl | |
| Temperature Grade | Commercial | |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | |
| Terminal Form | Gull Wing | |
| Terminal Pitch | 0.65 Mm | |
| Terminal Position | Dual | |
| Time@Peak Reflow Temperature-Max (s) | 30 | |
| Width | 5.3 Mm |
SN74LS221DBR Frequently Asked Questions (FAQ)
-
The maximum operating frequency of the SN74LS221DBR is 30 MHz, but it can vary depending on the load capacitance and the output current.
-
To ensure reliable operation in high-temperature environments, it is recommended to follow proper thermal management practices, such as providing adequate heat sinking and airflow, and ensuring that the device is operated within its specified temperature range (-40°C to 85°C).
-
No, the SN74LS221DBR is a 5V device and is not compatible with 3.3V systems. Using it in a 3.3V system may result in unreliable operation or damage to the device.
-
The output enable (OE) pin should be connected to a valid logic level (either VCC or GND) to ensure proper operation of the device. Leaving the OE pin floating can cause unpredictable behavior.
-
The recommended termination scheme for the SN74LS221DBR is to use a pull-up resistor to VCC on the output pins, with a value of 1 kΩ to 10 kΩ, depending on the load capacitance and the desired rise time.