2 layers97.8 × 69.9 mm
SN74LS21N
Texas InstrumentsExtended
0℃~+70℃ 2 2.7V~3.4V 20ns@5V,15pF 250mV~400mV、350mV~500mV 2V 4 4.75V~5.25V 400uA 74LS Series 800mV 8mA AND Gate PDIP-14 Logic Gates ROHS
- Part id
- ti/SN74LS21N
- Category
- Logic Gates
- Package
- PDIP-14
- Pins
- 14
- In stock
- 0 at JLCPCB (C2861866)
- Used on
- 1 open-source board
Overview
The SN74LS21N is a logic Gate made by Texas Instruments in a PDIP-14 package with 14 pins. 0℃~+70℃ 2 2.7V~3.4V 20ns@5V,15pF 250mV~400mV、350mV~500mV 2V 4 4.75V~5.25V 400uA 74LS Series 800mV 8mA AND Gate PDIP-14 Logic Gates ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:SN74LS21N(XBLW), from EasyEDA) and its footprint (Package_DIP:DIP-14_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C2861866). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Pinout
14| Pin | Name | Type |
|---|---|---|
| 1 | 1A | Unspecified |
| 2 | 1B | Unspecified |
| 3 | NC | Unspecified |
| 4 | 1C | Unspecified |
| 5 | 1D | Unspecified |
| 6 | 1Y | Unspecified |
| 7 | GND | Unspecified |
| 8 | 2Y | Unspecified |
| 9 | 2A | Unspecified |
| 10 | 2B | Unspecified |
| 11 | NC | Unspecified |
| 12 | 2C | Unspecified |
| 13 | 2D | Unspecified |
| 14 | VCC | Unspecified |
Open-source boards using it
1Parts like it
8
CD4093BE
PDIP-14-55℃~+125℃ 130ns@15V,50pF 2 3.4mA 3.4mA 3.6V~10.8V 3V~18V 4 4.95V~5V、9.95V~10V、14.95V~15V 4000B Series 4uA 50mV NAND Gate DIP-14 Logic Gates ROHSTexas InstrumentsLogic GatesCD4078BE
DIP-14-40℃~+85℃ 1 1.5V、3V、4V 110ns@15V,50pF 3.5V、7V、11V 4.95V、9.95V、14.95V 4000 Series 50mV 5V~18V 5uA 6.8mA 6.8mA 8 NOR Gate、OR Gate DIP-14 Logic Gates ROHSHGSEMILogic GatesCD4093BE(XBLW)
DIP-14-40℃~+85℃ 10V 2 2.6mA 3V~15V 4 4uA 50mV 6.8mA 90ns CD4 NAND Gate Schmitt trigger DIP-14 Logic Gates ROHSXBLWLogic GatesCD4030BE
PDIP-14-55℃~+125℃ 1.5V~4V 100ns@15V,50pF 1uA 3.4mA 3.4mA 3.5V~11V 3V~18V 4 4000B Series XOR Gate PDIP-14 Logic Gates ROHSTexas InstrumentsLogic GatesSN74LS20N(LX)
DIP-14-40℃~+105℃ 1.5V~4.2V 15ns@6V,50pF 2 2V~6V 2uA 500mV~1.8V 74LS Series NAND Gate DIP-14 Logic Gates ROHSlingxingicLogic GatesCD4082BE(XBLW)
DIP-14-40℃~+105℃ 2 2.6mA 3.5V、7V、11V 3V 3V~15V 4 500nA 50mV 5V 6.8mA 60ns AND Gate CD4 DIP-14 Logic Gates ROHSXBLWLogic GatesSN74LS21N(XBLW)
DIP-14-20℃~+85℃ 1.5V、3.15V、4.2V 1.9V、3.98V、5.48V 100mV、330mV、330mV 19ns@6V,50pF 2 20uA 2V~6V 4 5.2mA 5.2mA 500mV、1.35V、1.8V 74LS AND Gate DIP-14 Logic Gates ROHSXBLWLogic GatesSN74HC13N(LX)
DIP-14-40℃~+125℃ 1.9V~5.34V 100mV~330mV 12ns@6V,50pF 2 20uA 2V~6V 4 4mA 4mA 74 Series NAND Gate DIP-14 Logic Gates ROHSlingxingicLogic Gates
Questions
Is there a KiCad symbol and footprint for the SN74LS21N?
Yes. The symbol is EasyEDA_Cloud:SN74LS21N(XBLW) and the footprint Package_DIP:DIP-14_W8.89mm_SMDSocket_LongPads, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the SN74LS21N?
PDIP-14, with 14 pins. Its footprint is drawn on this page.
Where is the SN74LS21N datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the SN74LS21N?
JLCPCB lists it as part C2861866, with 0 in stock; the sellers' links on this page open their listings.
What can replace the SN74LS21N?
Parts like it in the library: the CD4093BE by Texas Instruments, the CD4078BE by HGSEMI, the CD4093BE(XBLW) by XBLW and the CD4030BE by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the SN74LS21N?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.