Overview
The CD74HC299EX is a shift Register made by Texas Instruments in a PDIP-20 package with 20 pins. -55℃~+125℃ 2V~6V PDIP-20 Shift Registers.
PCBKit's library has its KiCad symbol (74xx:74LS299, from KiCad's library) and its footprint (Package_DIP:DIP-20_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3304037).
Symbol
Footprint
Order codes
1- CD74HC299EXLCSC C3304037
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 CD74HC299EX?
Yes. The symbol is 74xx:74LS299 and the footprint Package_DIP:DIP-20_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 CD74HC299EX?
PDIP-20, with 20 pins. Its footprint is drawn on this page.
Where is the CD74HC299EX datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the CD74HC299EX?
JLCPCB lists it as part C3304037, with 0 in stock; the sellers' links on this page open their listings.
What can replace the CD74HC299EX?
Parts like it in the library: the AM25LS22PC by AMD, the 74ACT299PC by onsemi, the 74ACT323PC by onsemi and the 74F299PC by onsemi. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Parts like it
8
AM25LS22PC
PDIP-200℃~+70℃ 1 4.75V~5.25V 50MHz 8 Asynchronous clear function、Output enable Serial-to-Parallel Tri-State PDIP-20 Shift RegistersAMDShift Registers74ACT299PC
PDIP-20-40℃~+85℃ 1 4.5V~5.5V 74ACT Tri-State PDIP-20 Shift Registers ROHSonsemiShift Registers74ACT323PC
PDIP-20-40℃~+85℃ 1 125MHz 24mA 24mA 24mA 4.5V~5.5V 74ACT 8 9ns@5.0V,50pF Output enable、Supports forward and reverse shift TTL Compatible CMOS Tri-State PDIP-20 Shift Registers ROHSonsemiShift Registers74F299PC
PDIP-200℃~+70℃ 1 100MHz 24mA 3mA 4.5V~5.5V 74F 7ns@5V,50pF 8 Asynchronous clear function、Output enable、Asynchronous parallel load function、Supports forward and reverse shift Tri-State PDIP-20 Shift RegistersonsemiShift Registers74F322PC
PDIP-200℃~+70℃ 1 4.5V~5.5V 74F 8 Serial-to-Parallel Tri-State PDIP-20 Shift RegistersonsemiShift Registers74F323PC
PDIP-200℃~+70℃ 1 24mA 3mA 4.5V~5.5V 74F 8 8.5ns@5.0V,50pF Output enable、Supports forward and reverse shift Tri-State PDIP-20 Shift RegistersonsemiShift RegistersDM74S299N
PDIP-200℃~+70℃ 1 20mA 21ns@5V,50pF 4.75V~5.25V 50MHz 6.5mA 700mW 74S 8 Asynchronous clear function、Output enable、Supports forward and reverse shift Tri-State PDIP-20 Shift RegistersonsemiShift RegistersMC74F299N
DIP-200℃~70℃ 4.5V~5.5V 70MHz 8 Asynchronous clear function、Output enable、Asynchronous parallel load function、Supports forward and reverse shift Tri-State DIP-20 Shift Registers ROHSonsemiShift Registers