

Overview
The SN74LS245N is a buffers, Drivers, Receivers, Transceiver made by Texas Instruments in a DIP-20 package with 20 pins. 0℃~+70℃ 1 12ns@5V,45pF 15mA 24mA 4.75V~5.25V 74LS 8 95mA Bidirectional Schmitt trigger Tri-State DIP-20 Buffers, Drivers, Receivers, Transceivers ROHS.
PCBKit's library has its KiCad symbol (74xx:74LS245, from KiCad's library) and its footprint (Package_DIP:DIP-20_W7.62mm, from KiCad's library), ready for a KiCad board. 104 are in stock at JLCPCB (part C352966). 2 open-source boards in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
13- Channel Type
- Bidirectional
- Current - Output High(IOH)
- 15mA
- Current - Output Low(IOL)
- 24mA
- Features
- Output enable
- Input type
- Schmitt trigger
- Logic Family
- 74LS
- Number of Bits per Element
- 8
- Number of Elements
- 1
- Operating Temperature
- 0℃~+70℃
- Propagation Delay
- 12ns@5V,45pF
- Quiescent Current
- 95mA
- Voltage - Supply
- 4.75V~5.25V
- output type
- Tri-State
Order codes
1- SN74LS245NLCSC C352966
Pinout
20| Pin | Name | Type |
|---|---|---|
| 1 | A->B | Input |
| 2 | A0 | Tri-state |
| 3 | A1 | Tri-state |
| 4 | A2 | Tri-state |
| 5 | A3 | Tri-state |
| 6 | A4 | Tri-state |
| 7 | A5 | Tri-state |
| 8 | A6 | Tri-state |
| 9 | A7 | Tri-state |
| 10 | GND | Power in |
| 11 | B7 | Tri-state |
| 12 | B6 | Tri-state |
| 13 | B5 | Tri-state |
| 14 | B4 | Tri-state |
| 15 | B3 | Tri-state |
| 16 | B2 | Tri-state |
| 17 | B1 | Tri-state |
| 18 | B0 | Tri-state |
| 19 | CE | Input |
| 20 | VCC | Power in |
Open-source boards using it
All 2- 2 layers281 × 79 mm

- 2 layers281 × 79 mm

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Is there a KiCad symbol and footprint for the SN74LS245N?
Yes. The symbol is 74xx:74LS245 and the footprint Package_DIP:DIP-20_W7.62mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the SN74LS245N?
DIP-20, with 20 pins. Its footprint is drawn on this page.
Where is the SN74LS245N datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the SN74LS245N?
JLCPCB lists it as part C352966, with 104 in stock; the sellers' links on this page open their listings.
What can replace the SN74LS245N?
Parts like it in the library: the 74HC541D by GR, the SN74HC240N(XBLW) by XBLW, the SN74HC244N(XBLW) by XBLW and the 74HC245N by HGSEMI. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the SN74LS245N?
2 boards in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
874HC541D
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DIP-20-40℃~+105℃ 11ns@4.5V,50pF 2 20uA 2V~6V 4 6mA 74HC 8uA Output enable Tri-State Unidirectional DIP-20 Buffers, Drivers, Receivers, Transceivers ROHSXBLWBuffers, Drivers, Receivers, TransceiversSN74HC244N(XBLW)
DIP-20-40℃~+105℃ 2 20uA 2V~6V 4 4mA 74HC 8uA 9ns@5V,15pF Output enable Tri-State Unidirectional DIP-20 Buffers, Drivers, Receivers, Transceivers ROHSXBLWBuffers, Drivers, Receivers, Transceivers74HC245N
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DIP-20-40℃~+85℃ 1 21ns@4.5V,50pF 2V~6V 7.8mA 7.8mA 74HC 8 80uA Bidirectional Output enable Tri-State DIP-20 Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsBuffers, Drivers, Receivers, TransceiversSN74HC240N(LX)
DIP-20-40℃~+125℃ 1 2V~6V 7.8mA 7.8mA 74HC 8 8uA 9ns@5.0V,15pF Tri-State DIP-20 Buffers, Drivers, Receivers, Transceivers ROHSlingxingicBuffers, Drivers, Receivers, TransceiversSN74HC245N(LX)
DIP-20-40℃~+125℃ 1 2V~6V 7.8mA 7.8mA 74HC 8 8uA 9ns@4.5V,50pF Bidirectional Tri-State DIP-20 Buffers, Drivers, Receivers, Transceivers ROHSlingxingicBuffers, Drivers, Receivers, TransceiversSN74LS240N(LX)
DIP-20-40℃~+125℃ 11ns@4.5V 2 2V~6V 4 6mA 6mA 74LS 80uA Tri-State DIP-20 Buffers, Drivers, Receivers, Transceivers ROHSlingxingicBuffers, Drivers, Receivers, Transceivers