ic
CH9142
Symbol
Footprint
3D Model
Pin Map
| Pin | Name | Type | Mount | Shape | Width × Height (mm) |
|---|---|---|---|---|---|
| GND | ground | SMD | roundrect | 2.7×2.7 | |
| X32KO | passive | SMD | roundrect | 0.2×0.7 | |
| X32KI | passive | SMD | roundrect | 0.2×0.7 | |
| VDD_D | power | SMD | roundrect | 0.2×0.7 | |
| VSW | passive | SMD | roundrect | 0.2×0.7 | |
| VCC | power | SMD | roundrect | 0.2×0.7 | |
| AT0 | passive | SMD | roundrect | 0.2×0.7 | |
| NC | nc | SMD | roundrect | 0.2×0.7 | |
| RTS1#/TNOW1 | passive | SMD | roundrect | 0.7×0.2 | |
| CTS1 | passive | SMD | roundrect | 0.7×0.2 | |
| TXD1 | passive | SMD | roundrect | 0.7×0.2 | |
| RXD1 | passive | SMD | roundrect | 0.7×0.2 | |
| RTS0/TNOW0 | passive | SMD | roundrect | 0.7×0.2 | |
| CTS0# | passive | SMD | roundrect | 0.7×0.2 | |
| TXD0 | passive | SMD | roundrect | 0.7×0.2 | |
| RXD0 | passive | SMD | roundrect | 0.2×0.7 | |
| RST# | passive | SMD | roundrect | 0.2×0.7 | |
| NC | nc | SMD | roundrect | 0.2×0.7 | |
| X32MO | passive | SMD | roundrect | 0.2×0.7 | |
| X32MI | passive | SMD | roundrect | 0.2×0.7 | |
| VINTA | input | SMD | roundrect | 0.2×0.7 | |
| ANT | passive | SMD | roundrect | 0.2×0.7 | |
| VDD_A | power | SMD | roundrect | 0.7×0.2 | |
| LED0/RELOAD | passive | SMD | roundrect | 0.7×0.2 | |
| SLEEP | passive | SMD | roundrect | 0.7×0.2 | |
| LED1 | passive | SMD | roundrect | 0.7×0.2 | |
| AT1 | passive | SMD | roundrect | 0.7×0.2 | |
| BLESTA0 | passive | SMD | roundrect | 0.7×0.2 | |
| BLEDTA1 | passive | SMD | roundrect | 0.7×0.2 |
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Details
- Category
- ic
- MPN
- CH9142
- Manufacturer
- WCH(Jiangsu Qin Heng)
- Package
- QFN-28(4x4)
- Footprint
- QFN-28_L4.0-W4.0-P0.40-BL-EP2.7_CH9142
- JLCPCB
- C39831289
- LCSC
- C39831289
- Lifecycle
- active
- Mounting
- SMT
- RoHS
- Compliant
- MSL
- MSL 3
- ECCN
- -
JLCPCB Stock & Pricing
In Stock(69 pcs)
1-9 pcs$1.3366
10-29 pcs$1.1053
30-99 pcs$0.9784
100-489 pcs$0.8354
490-979 pcs$0.7711
980+ pcs$0.7422