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CH455H
Digital tube driver and keyboard scan (common cathode only), with interrupt/current setting, SOP-18
Schematic Symbol
Pin Configuration (18 pins)
| Pin | Name | Type |
|---|---|---|
| 1 | DIG0 | output |
| 2 | SCL | input |
| 3 | SDA | bidirectional |
| 4 | GND | power_in |
| 5 | DIG1 | output |
| 6 | DIG2 | output |
| 7 | DIG3 | output |
| 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 |
| 8 | ISET | input |
| 18 | ~{INT} | output |
Footprint
ConfirmedPackage_SO/SOP-18_7.495x11.515mm_P1.27mm
Pad Layout
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Pads (18)
| Number | Type |
|---|---|
| 1 | smd |
| 2 | smd |
| 3 | smd |
| 4 | smd |
| 5 | smd |
| 6 | smd |
| 7 | smd |
| 8 | smd |
| 9 | smd |
| 10 | smd |
| 11 | smd |
| 12 | smd |
| 13 | smd |
| 14 | smd |
| 15 | smd |
| 16 | smd |
| 17 | smd |
| 18 | smd |