Overview
The CH455H is a digital Tube Driver made by WCH (Nanjing Qinheng Microelectronics) in a SOP-18-300mil package with 18 pins. -40℃~+85℃ 2.7V~5V 25mA 4MHz 50uA 7 Segment × 4 Digit、8 Segment x 4 Digit Adjustable Glow、Key Scan、Common Cathode I2C SOP-18-300mil Digital Tube Drivers ROHS.
PCBKit's library has its KiCad symbol (Driver_LED:CH455H, from KiCad's library) and its footprint (Package_SO:SOP-18_7.495x11.515mm_P1.27mm, from KiCad's library), ready for a KiCad board. 1,274 are in stock at JLCPCB (part C112928).
Symbol
Footprint
Parameters
9- Clock Frequency
- 4MHz
- Configuration
- 7 Segment × 4 Digit
- Digit Drive Current
- 160mA
- Features
- Internal reset function
- Interface
- I²C
- Operating Temperature
- -40℃~+85℃
- Quiescent Current
- 50uA
- Segment Drive Current
- 25mA
- Voltage - Supply
- 2.7V~5V
Order codes
1- CH455HLCSC C112928
Pinout
18| Pin | Name | Type |
|---|---|---|
| 1 | DIG0 | Output |
| 2 | SCL | Input |
| 3 | SDA | Input/output |
| 4 | GND | Power in |
| 5 | DIG1 | Output |
| 6 | DIG2 | Output |
| 7 | DIG3 | Output |
| 8 | ISET | Input |
| 9 | SEG0 | Tri-state |
| 10 | SEG1 | Tri-state |
| 11 | VCC | Power in |
| 12 | SEG2 | Tri-state |
| 13 | SEG3 | Tri-state |
| 14 | SEG4 | Tri-state |
| 15 | SEG5 | Tri-state |
| 16 | SEG6 | Tri-state |
| 17 | SEG7 | Tri-state |
| 18 | INT | Output |
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Is there a KiCad symbol and footprint for the CH455H?
Yes. The symbol is Driver_LED:CH455H and the footprint Package_SO:SOP-18_7.495x11.515mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the CH455H?
SOP-18-300mil, with 18 pins. Its footprint is drawn on this page.
Where is the CH455H datasheet?
WCH (Nanjing Qinheng Microelectronics) publishes it: the Datasheet link on this page opens it.
Where can I order the CH455H?
JLCPCB lists it as part C112928, with 1,274 in stock; the sellers' links on this page open their listings.
What can replace the CH455H?
Parts like it in the library: the CH455G by WCH (Nanjing Qinheng Microelectronics). Check their datasheets: a part that fits the footprint may still differ in its ratings.
