eSIM (embedded SIM) modules solder directly to the PCB using LGA (Land Grid Array) contacts. They are remotely programmable and used in wearables, IoT devices, and modern smartphones where a removable SIM slot is impractical.
| Pin | Name | Function | Type |
|---|---|---|---|
| VCC | VCC | Supply voltage 1.8V | PWR |
| GND | GND | Ground | GND |
| RST | RST | Reset line | I/O |
| CLK | CLK | Clock line | BUS |
| IO | IO | Data line | BUS |
eSIM (embedded SIM) modules solder directly to the PCB using LGA (Land Grid Array) contacts. They are remotely programmable and used in wearables, IoT devices, and modern smartphones where a removable SIM slot is impractical.