Table 1 shows a list of which 32 KHz oscillators are included in various Microchip megaAVR, Microchip tinyAVR, and Microchip XMEGA devices. The list will be extended with UC3 devices in future releases.
| Device Family | Device | Oscillator Module |
|---|---|---|
| megaAVR | ATmega128 | X32K_2v7 |
| megaAVR | ATmega1280 | X32K_1v8 |
| megaAVR | ATmega1281 | X32K_1v8 |
| megaAVR | ATmega1284P | X32K_1v8_ULP |
| megaAVR | ATmega128A | X32K_2v7 |
| megaAVR | ATmega16 | X32K_2v7 |
| megaAVR | ATmega162 | X32K_1v8 |
| megaAVR | ATmega164A | X32K_1v8_ULP |
| megaAVR | ATmega164P | X32K_1v8_ULP |
| megaAVR | ATmega164PA | X32K_1v8_ULP |
| megaAVR | ATmega165A | X32K_1v8_ULP |
| megaAVR | ATmega165P | X32K_1v8_ULP |
| megaAVR | ATmega165PA | X32K_1v8_ULP |
| megaAVR | ATmega168 | X32K_1v8 |
| megaAVR | ATmega168A | X32K_1v8_ULP |
| megaAVR | ATmega168P | X32K_1v8_ULP |
| megaAVR | ATmega168PA | X32K_1v8_ULP |
| megaAVR | ATmega168PB | X32K_1v8_ULP |
| megaAVR | ATmega169 | X32K_1v8 |
| megaAVR | ATmega169A | X32K_1v8_ULP |
| megaAVR | ATmega169P | X32K_1v8_ULP |
| megaAVR | ATmega169PA | X32K_1v8_ULP |
| megaAVR | ATmega16A | X32K_2v7 |
| megaAVR | ATmega2560 | X32K_1v8 |
| megaAVR | ATmega2561 | X32K_1v8 |
| megaAVR | ATmega32 | X32K_2v7 |
| megaAVR | ATmega324A | X32K_1v8_ULP |
| megaAVR | ATmega324P | X32K_1v8_ULP |
| megaAVR | ATmega324PA | X32K_1v8_ULP |
| megaAVR | ATmega3250A | X32K_1v8_ULP |
| megaAVR | ATmega3250P | X32K_1v8_ULP |
| megaAVR | ATmega3250PA | X32K_1v8_ULP |
| megaAVR | ATmega325A | X32K_1v8_ULP |
| megaAVR | ATmega32A | X32K_2v7 |
| megaAVR | ATmega48 | X32K_1v8 |
| megaAVR | ATmega48A | X32K_1v8_ULP |
| megaAVR | ATmega324PA | X32K_1v8_ULP |
| megaAVR | ATmega324PB | X32K_1v8_ULP |
| megaAVR | ATmega325P | X32K_1v8_ULP |
| megaAVR | ATmega325PA | X32K_1v8_ULP |
| megaAVR | ATmega328 | X32K_1v8 |
| megaAVR | ATmega328P | X32K_1v8_ULP |
| megaAVR | ATmega328PA | X32K_1v8_ULP |
| megaAVR | ATmega328PB | X32K_1v8_ULP |
| megaAVR | ATmega329 | X32K_1v8 |
| megaAVR | ATmega3290A | X32K_1v8_ULP |
| megaAVR | ATmega3290P | X32K_1v8_ULP |
| megaAVR | ATmega3290PA | X32K_1v8_ULP |
| megaAVR | ATmega329A | X32K_1v8_ULP |
| megaAVR | ATmega329P | X32K_1v8_ULP |
| megaAVR | ATmega329PA | X32K_1v8_ULP |
| megaAVR | ATmega32A | X32K_2v7 |
| megaAVR | ATmega48 | X32K_1v8 |
| megaAVR | ATmega48A | X32K_1v8_ULP |
| megaAVR | ATmega48P | X32K_1v8_ULP |
| megaAVR | ATmega48PA | X32K_1v8_ULP |
| megaAVR | ATmega48PB | X32K_1v8_ULP |
| megaAVR | ATmega64 | X32K_2v7 |
| megaAVR | ATmega640 | X32K_1v8 |
| megaAVR | ATmega644A | X32K_1v8_ULP |
| megaAVR | ATmega644P | X32K_1v8_ULP |
| megaAVR | ATmega644PA | X32K_1v8_ULP |
| megaAVR | ATmega6450A | X32K_1v8_ULP |
| megaAVR | ATmega6450P | X32K_1v8_ULP |
| megaAVR | ATmega645A | X32K_1v8_ULP |
| megaAVR | ATmega645P | X32K_1v8_ULP |
| megaAVR | ATmega649 | X32K_1v8 |
| megaAVR | ATmega6490 | X32K_1v8_ULP |
| megaAVR | ATmega6490A | X32K_1v8_ULP |
| megaAVR | ATmega6490P | X32K_1v8_ULP |
| megaAVR | ATmega649A | X32K_1v8_ULP |
| megaAVR | ATmega649P | X32K_1v8_ULP |
| megaAVR | ATmega64 | X32K_2v7 |
| megaAVR | ATmega640 | X32K_1v8 |
| megaAVR | ATmega644A | X32K_1v8_ULP |
| megaAVR | ATmega644P | X32K_1v8_ULP |
| megaAVR | ATmega644PA | X32K_1v8_ULP |
| megaAVR | ATmega6450A | X32K_1v8_ULP |
| megaAVR | ATmega6450P | X32K_1v8_ULP |
| megaAVR | ATmega645A | X32K_1v8_ULP |
| megaAVR | ATmega645P | X32K_1v8_ULP |
| megaAVR | ATmega649 | X32K_1v8 |
| megaAVR | ATmega6490 | X32K_1v8_ULP |
| megaAVR | ATmega6490A | X32K_1v8_ULP |
| megaAVR | ATmega6490P | X32K_1v8_ULP |
| megaAVR | ATmega649A | X32K_1v8_ULP |
| megaAVR | ATmega649P | X32K_1v8_ULP |
| megaAVR | ATmega64A | X32K_2v7 |
| megaAVR | ATmega8 | X32K_2v7 |
| megaAVR | ATmega88 | X32K_1v8 |
| megaAVR | ATmega88A | X32K_1v8_ULP |
| megaAVR | ATmega88P | X32K_1v8_ULP |
| megaAVR | ATmega88PA | X32K_1v8_ULP |
| megaAVR | ATmega88PB | X32K_1v8_ULP |
| megaAVR | ATmega8A | X32K_2v7 |
| megaAVR 0-series | ATmega3208 | X32K_1v8_5v5_ULP |
| megaAVR 0-series | ATmega3209 | X32K_1v8_5v5_ULP |
| megaAVR 0-series | ATmega4808 | X32K_1v8_5v5_ULP |
| megaAVR 0-series | ATmega4809 | X32K_1v8_5v5_ULP |
| tinyAVR | ATtiny84A | X32K_1v8 |
| tinyAVR | ATtiny85 | X32K_1v8 |
| tinyAVR | ATtiny861 | X32K_1v8 |
| tinyAVR | ATtiny2313A | X32K_1v8 |
| tinyAVR | ATtiny24 | X32K_1v8 |
| tinyAVR | ATtiny24A | X32K_1v8 |
| tinyAVR | ATtiny25 | X32K_1v8 |
| tinyAVR | ATtiny261 | X32K_1v8 |
| tinyAVR | ATtiny261A | X32K_1v8 |
| tinyAVR | ATtiny4313 | X32K_1v8 |
| tinyAVR | ATtiny44 | X32K_1v8 |
| tinyAVR | ATtiny44A | X32K_1v8 |
| tinyAVR | ATtiny45 | X32K_1v8 |
| tinyAVR | ATtiny461 | X32K_1v8 |
| tinyAVR | ATtiny461A | X32K_1v8 |
| tinyAVR | ATtiny84 | X32K_1v8 |
| tinyAVR | ATtiny861A | X32K_1v8 |
| tinyAVR 1-series | ATtiny212 | X32K_1v8_5v5_ULP |
| tinyAVR 1-series | ATtiny214 | X32K_1v8_5v5_ULP |
| tinyAVR 1-series | ATtiny412 | X32K_1v8_5v5_ULP |
| tinyAVR 1-series | ATtiny414 | X32K_1v8_5v5_ULP |
| tinyAVR 1-series | ATtiny416 | X32K_1v8_5v5_ULP |
| tinyAVR 1-series | ATtiny417 | X32K_1v8_5v5_ULP |
| tinyAVR 1-series | ATtiny814 | X32K_1v8_5v5_ULP |
| tinyAVR 1-series | ATtiny816 | X32K_1v8_5v5_ULP |
| tinyAVR 1-series | ATtiny817 | X32K_1v8_5v5_ULP |
| tinyAVR 1-series | ATtiny1614 | X32K_1v8_5v5_ULP |
| tinyAVR 1-series | ATtiny1616 | X32K_1v8_5v5_ULP |
| tinyAVR 1-series | ATtiny1617 | X32K_1v8_5v5_ULP |
| XMEGA | ATxmega128A1 | X32K_XMEGA |
| XMEGA | ATxmega128A3 | X32K_XMEGA |
| XMEGA | ATxmega128A4 | X32K_XMEGA |
| XMEGA | ATxmega128B1 | X32K_XMEGA |
| XMEGA | ATxmega128B3 | X32K_XMEGA |
| XMEGA | ATxmega128D3 | X32K_XMEGA |
| XMEGA | ATxmega128D4 | X32K_XMEGA |
| XMEGA | ATxmega16A4 | X32K_XMEGA |
| XMEGA | ATxmega16D4 | X32K_XMEGA |
| XMEGA | ATxmega192A1 | X32K_XMEGA |
| XMEGA | ATxmega192A3 | X32K_XMEGA |
| XMEGA | ATxmega192D3 | X32K_XMEGA |
| XMEGA | ATxmega256A1 | X32K_XMEGA |
| XMEGA | ATxmega256D3 | X32K_XMEGA |
| XMEGA | ATxmega32A4 | X32K_XMEGA |
| XMEGA | ATxmega32D4 | X32K_XMEGA |
| XMEGA | ATxmega348A1 | X32K_XMEGA |
| XMEGA | ATxmega64A1 | X32K_XMEGA |
| XMEGA | ATxmega64A3 | X32K_XMEGA |
| XMEGA | ATxmega64A4 | X32K_XMEGA |
| XMEGA | ATxmega64B1 | X32K_XMEGA |
| XMEGA | ATxmega64B3 | X32K_XMEGA |
| XMEGA | ATxmega64D3 | X32K_XMEGA |
| XMEGA | ATxmega64D4 | X32K_XMEGA |
| XMEGA | ATxmega256A3B | X32K_XRTC32 |