Overview
The EM357-IRTR is a RF Transceiver IC made by Silicon Labs with 49 pins. - RF Transceiver ICs ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:EM357-IRT, from EasyEDA) and its footprint (EasyEDA_Cloud:QFN-48_L7.0-W7.0-P0.50-BL-EP5.3, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C6944454).
Symbol
Footprint
Order codes
1- EM357-IRTRLCSC C6944454
Pinout
49| Pin | Name | Type |
|---|---|---|
| 1 | VDD_24MHZ | Unspecified |
| 2 | VDD_VCO | Unspecified |
| 3 | RF_P | Unspecified |
| 4 | RF_N | Unspecified |
| 5 | VDD_RF | Unspecified |
| 6 | RF_TX_ALT_P | Unspecified |
| 7 | RF_TX_ALT_N | Unspecified |
| 8 | VDD_IF | Unspecified |
| 9 | NC | Unspecified |
| 10 | VDD_PADSA | Unspecified |
| 11 | PC5 | Unspecified |
| 12 | nRESET | Unspecified |
| 13 | PC6 | Unspecified |
| 14 | PC7 | Unspecified |
| 15 | VREG_OUT | Unspecified |
| 16 | VDD_PADS | Unspecified |
| 17 | VDD_CORE | Unspecified |
| 18 | PA7 | Unspecified |
| 19 | PB3 | Unspecified |
| 20 | PB4 | Unspecified |
| 21 | PA0 | Unspecified |
| 22 | PA1 | Unspecified |
| 23 | VDD_PADS | Unspecified |
| 24 | PA2 | Unspecified |
| 25 | PA3 | Unspecified |
| 26 | PA4 | Unspecified |
| 27 | PA5 | Unspecified |
| 28 | VDD_PADS | Unspecified |
| 29 | PA6 | Unspecified |
| 30 | PB1 | Unspecified |
| 31 | PB2 | Unspecified |
| 32 | SWCLK，JTCK | Unspecified |
| 33 | PC2 | Unspecified |
| 34 | PC3 | Unspecified |
| 35 | PC4 | Unspecified |
| 36 | PB0 | Unspecified |
| 37 | VDD_PADS | Unspecified |
| 38 | PC1 | Unspecified |
| 39 | VDD_MEM | Unspecified |
| 40 | PC0 | Unspecified |
| 41 | PB7 | Unspecified |
| 42 | PB6 | Unspecified |
| 43 | PB5 | Unspecified |
| 44 | VDD_CORE | Unspecified |
| 45 | VDD_PRE | Unspecified |
| 46 | VDD_SYNTH | Unspecified |
| 47 | OSCB | Unspecified |
| 48 | OSCA | Unspecified |
| 49 | GND | Unspecified |
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Is there a KiCad symbol and footprint for the EM357-IRTR?
Yes. The symbol is EasyEDA_Cloud:EM357-IRT and the footprint EasyEDA_Cloud:QFN-48_L7.0-W7.0-P0.50-BL-EP5.3, both drawn on this page. PCBKit places them on a board for you when you design with it.
Where is the EM357-IRTR datasheet?
Silicon Labs publishes it: the Datasheet link on this page opens it.
Where can I order the EM357-IRTR?
JLCPCB lists it as part C6944454, with 0 in stock; the sellers' links on this page open their listings.
What can replace the EM357-IRTR?
Parts like it in the library: the EFR32FG12P231F1024GM48-C by Silicon Labs, the EFR32MG12P232F1024GM48-C by Silicon Labs, the EFR32BG12P232F1024GM48-B by Silicon Labs and the EFR32BG12P433F1024GM48-B by Silicon Labs. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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