Overview
The CH448F is an analog Switches, Multiplexer made by WCH (Nanjing Qinheng Microelectronics) in a QFN-24-EP(4x4) package with 25 pins. -40℃~+85℃ 2 2ns 3ns 4V~5.5V 550MHz 5Ω 8:1 QFN-24-EP(4x4) Analog Switches, Multiplexers ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:CH448F, from EasyEDA) and its footprint (EasyEDA_Cloud:QFN-24_L4.0-W4.0-P0.50-BL-EP2.8, from EasyEDA), ready for a KiCad board. 3,365 are in stock at JLCPCB (part C2912958).
Symbol
Footprint
Parameters
10- Bandwidth
- 550MHz
- Con
- 14pF
- Features
- Channel combination connection
- Number of Channels
- 2
- Operating Temperature
- -40℃~+85℃
- Ron
- 5Ω
- Switch Circuit
- 8:1
- Turn-off time
- 2ns
- Turn-on time
- 3ns
- Voltage - Supply
- 4V~5.5V
Order codes
1- CH448FLCSC C2912958
Pinout
25| Pin | Name | Type |
|---|---|---|
| 1 | SEL2 | Unspecified |
| 2 | VDD | Unspecified |
| 3 | A0Y | Unspecified |
| 4 | A0X | Unspecified |
| 5 | A1Y | Unspecified |
| 6 | A1X | Unspecified |
| 7 | A2Y | Unspecified |
| 8 | A2X | Unspecified |
| 9 | A3Y | Unspecified |
| 10 | A3X | Unspecified |
| 11 | XEN# | Unspecified |
| 12 | YEN# | Unspecified |
| 13 | AY | Unspecified |
| 14 | AX | Unspecified |
| 15 | A7Y | Unspecified |
| 16 | A7X | Unspecified |
| 17 | A6Y | Unspecified |
| 18 | A6X | Unspecified |
| 19 | A5Y | Unspecified |
| 20 | A5X | Unspecified |
| 21 | A4Y | Unspecified |
| 22 | A4X | Unspecified |
| 23 | SEL0 | Unspecified |
| 24 | SEL1 | Unspecified |
| 25 | GND | Unspecified |
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Is there a KiCad symbol and footprint for the CH448F?
Yes. The symbol is EasyEDA_Cloud:CH448F and the footprint EasyEDA_Cloud:QFN-24_L4.0-W4.0-P0.50-BL-EP2.8, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the CH448F?
QFN-24-EP(4x4), with 25 pins. Its footprint is drawn on this page.
Where is the CH448F datasheet?
WCH (Nanjing Qinheng Microelectronics) publishes it: the Datasheet link on this page opens it.
Where can I order the CH448F?
JLCPCB lists it as part C2912958, with 3,365 in stock; the sellers' links on this page open their listings.
What can replace the CH448F?
Parts like it in the library: the CH449F by WCH (Nanjing Qinheng Microelectronics). Check their datasheets: a part that fits the footprint may still differ in its ratings.
