Overview
The CD74AC20E is a logic Gate made by Texas Instruments in a PDIP-14 package with 14 pins. -55℃~+125℃ 1.2V~3.85V 1.5V~5.5V 12.2ns@5V,50pF 2 24mA 24mA 300mV~1.65V 4uA 74AC Series NAND 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 C2879104).
Symbol
Footprint
Parameters
11- Current - Output High(IOH)
- 24mA
- Current - Output Low(IOL)
- 24mA
- Input Logic Level - High
- 1.2V~3.85V
- Input Logic Level - Low
- 300mV~1.65V
- Logic Type
- NAND Gate
- Number of Gates
- 2
- Operating Temperature
- -55℃~+125℃
- Propagation Delay
- 12.2ns@5V,50pF
- Quiescent Current
- 4uA
- Series
- 74AC Series
- Voltage - Supply
- 1.5V~5.5V
Order codes
1- CD74AC20ELCSC C2879104
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 |
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Is there a KiCad symbol and footprint for the CD74AC20E?
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 CD74AC20E?
PDIP-14, with 14 pins. Its footprint is drawn on this page.
Where is the CD74AC20E datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the CD74AC20E?
JLCPCB lists it as part C2879104, with 0 in stock; the sellers' links on this page open their listings.
What can replace the CD74AC20E?
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.
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