Overview
The SN74LS299N is a shift Register made by Texas Instruments in a PDIP-20 package with 20 pins. 0℃~+70℃ 1 4.75V~5.25V 74LS 8 Asynchronous clear function、Output enable、Asynchronous parallel load function、Supports forward and reverse shift Tri-State PDIP-20 Shift Registers ROHS.
PCBKit's library has its KiCad symbol (74xx:74LS299, from KiCad's library) and its footprint (Package_DIP:DIP-20_W7.62mm, from KiCad's library), ready for a KiCad board. 10 are in stock at JLCPCB (part C2862601).
Symbol
Footprint
Parameters
12- Clock Frequency
- 20MHz
- Current - Output High(IOH)
- 2.6mA
- Current - Output Low(IOL)
- 24mA
- Features
- Supports forward and reverse shift
- Number of Elements
- 1
- Operating Temperature
- 0℃~+70℃
- Output Type
- Tri-State
- Pd - Power Dissipation
- 175mW
- Propagation Delay
- 26ns@5V,15pF
- Resolution
- 8
- Series
- 74LS
- Voltage - Supply
- 4.75V~5.25V
Order codes
1- SN74LS299NLCSC C2862601
Pinout
20| Pin | Name | Type |
|---|---|---|
| 1 | S0 | Input |
| 2 | OE1 | Input |
| 3 | OE2 | Input |
| 4 | IO6 | Tri-state |
| 5 | IO4 | Tri-state |
| 6 | IO2 | Tri-state |
| 7 | IO0 | Tri-state |
| 8 | Q0 | Output |
| 9 | Mr | Input |
| 10 | GND | Power in |
| 11 | Ds0 | Input |
| 12 | Cp | Input |
| 13 | IO1 | Tri-state |
| 14 | IO3 | Tri-state |
| 15 | IO5 | Tri-state |
| 16 | IO7 | Tri-state |
| 17 | Q7 | Output |
| 18 | Ds7 | Input |
| 19 | S1 | Input |
| 20 | VCC | Power in |
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Is there a KiCad symbol and footprint for the SN74LS299N?
Yes. The symbol is 74xx:74LS299 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 SN74LS299N?
PDIP-20, with 20 pins. Its footprint is drawn on this page.
Where is the SN74LS299N datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the SN74LS299N?
JLCPCB lists it as part C2862601, with 10 in stock; the sellers' links on this page open their listings.
What can replace the SN74LS299N?
Parts like it in the library: the HEF4021BT-Q100J by Nexperia, the HEF4557BT by Nexperia, the SN74LS299DW by Texas Instruments and the 7802401RA by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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