2 layers65 × 56 mm
SN74LS641-1DW
Texas InstrumentsExtended
0℃~+70℃ 1 10ns@5V,45pF 15mA 4.75V~5.25V 48mA 74LS 8 Bidirectional Open-drain Output enable Schmitt trigger SOIC-20-300mil Buffers, Drivers, Receivers, Transceivers ROHS
- Part id
- ti/SN74LS641-1DW
- Category
- Buffers, Drivers, Receivers, Transceivers
- Package
- SOIC-20-300mil
- Pins
- 20
- In stock
- 0 at JLCPCB (C1548111)
- Used on
- 7 open-source boards
Overview
The SN74LS641-1DW is a buffers, Drivers, Receivers, Transceiver made by Texas Instruments in a SOIC-20-300mil package with 20 pins. 0℃~+70℃ 1 10ns@5V,45pF 15mA 4.75V~5.25V 48mA 74LS 8 Bidirectional Open-drain Output enable Schmitt trigger SOIC-20-300mil Buffers, Drivers, Receivers, Transceivers ROHS.
PCBKit's library has its KiCad symbol (74xx_IEEE:74LS641, from KiCad's library) and its footprint (Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C1548111). 7 open-source boards in 2 repositories on GitHub use it.
Symbol
Footprint
Pinout
20| Pin | Name | Type |
|---|---|---|
| 1 | GAB | 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 | GBA | Input |
| 20 | VCC | Power in |
Open-source boards using it
7- 2 layers65 × 56 mm
Rascsi 2p5
nucleogenic/RASCSI
Please check out the full story with much more detail on the wiki!
98 partsBSD-3-Clause - 2 layers65 × 56 mm
- 2 layers65 × 30 mm
- 2 layers65 × 56 mm
Rascsi 2p2
nucleogenic/RASCSI
Please check out the full story with much more detail on the wiki!
91 partsBSD-3-Clause - 2 layers65 × 56 mm
Rascsi 2p3
nucleogenic/RASCSI
Please check out the full story with much more detail on the wiki!
94 partsBSD-3-Clause - 2 layers65 × 30 mm
Rascsi zero
nucleogenic/RASCSI
Please check out the full story with much more detail on the wiki!
89 partsBSD-3-Clause
Parts like it
8
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SOIC-20-300mil-40℃~+85℃ 11ns@6V,50pF 2 2V~6V 4 7.8mA 7.8mA 74HC 80uA Tri-State Unidirectional SOIC-20-300mil Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsBuffers, Drivers, Receivers, TransceiversTM74HC245
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Questions
Is there a KiCad symbol and footprint for the SN74LS641-1DW?
Yes. The symbol is 74xx_IEEE:74LS641 and the footprint Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the SN74LS641-1DW?
SOIC-20-300mil, with 20 pins. Its footprint is drawn on this page.
Where is the SN74LS641-1DW datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the SN74LS641-1DW?
JLCPCB lists it as part C1548111, with 0 in stock; the sellers' links on this page open their listings.
What can replace the SN74LS641-1DW?
Parts like it in the library: the 74HC245D by Nexperia, the 74HCT244D by Nexperia, the 74HCT245D by Nexperia and the SN74HC244DW by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the SN74LS641-1DW?
7 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.