| Parameters |
| Mount |
Surface Mount |
| Package / Case |
SOIC |
| Number of Pins |
14 |
| Weight |
129.387224mg |
| Packaging |
Tape & Reel (TR) |
| JESD-609 Code |
e4 |
| Moisture Sensitivity Level (MSL) |
1 |
| Number of Terminations |
14 |
| Terminal Finish |
Nickel/Palladium/Gold (Ni/Pd/Au) |
| Max Operating Temperature |
70°C |
| Min Operating Temperature |
0°C |
| Subcategory |
Gates |
| Technology |
TTL |
| Terminal Position |
DUAL |
| Terminal Form |
GULL WING |
| Peak Reflow Temperature (Cel) |
260 |
| Number of Functions |
2 |
| Supply Voltage |
5V |
| Time@Peak Reflow Temperature-Max (s) |
NOT SPECIFIED |
| Pin Count |
14 |
| Qualification Status |
Not Qualified |
| Operating Supply Voltage |
5V |
| Number of Elements |
2 |
| Power Supplies |
5V |
| Temperature Grade |
COMMERCIAL |
| Max Supply Voltage |
5.25V |
| Min Supply Voltage |
4.75V |
| Current - Output |
8mA |
| Propagation Delay |
20 ns |
| Family |
LS |
| Logic Function |
AND |
| Max I(ol) |
0.008 A |
| High Level Output Current |
-400μA |
| Low Level Output Current |
8mA |
| Schmitt Trigger |
NO |
| Number of Input Lines |
4 |
| Number of Output Lines |
1 |
| Length |
8.65mm |
| Width |
3.9mm |
| RoHS Status |
RoHS Compliant |
| Lead Free |
Lead Free |
SN74LS21DRG4 Overview
Due to its SOIC packaging, the part is convenient for international shipping. In order to provide high reliability, an advanced packaging method Tape & Reel (TR) is used. In total, there have been 14 terminations. Users will benefit significantly from 2 functions in this part. It represents the LS product family. A total of 14 pins are injected into the body of the part. There are a number of applications for logic devices mounted with the Surface Mount pin. Datasheets for 14 pin functions are available upon request. The logic device in this example is a typical Gates. According to the datasheet, the part requires 5V power supply. The total number of elements used for operation is 2. There is a specification for the operating voltage of the chip, 5VV, which is referred to as the supply voltage. When the temperature is higher than 70°C, the device should not be operated. A minimal operating temperature of 0°C has been determined from test statistics. In normalsituations, users should not supply voltages higher than 5.25V to the device. The lowest voltage fed to the part should be 4.75V. A part with 4 input lines performs better. A rating of 8mA is assigned to the output current.
SN74LS21DRG4 Features
LS Family
SN74LS21DRG4 Applications
There are a lot of Texas Instruments SN74LS21DRG4 Gates and Inverters applications.
- Illumination
- Audio
- Flashlight
- Mountain power station
- Hair dryer
- Island protection
- Range hood
- Electricity for military and civilian life in areas without electricity
- Overcurrent/Short circuit protection
- Remote monitoring