ATMEGA1608-MU

@@ -0,0 +1,85 @@+# ATMEGA1608-MU++**Microchip Tech** · Microcontrollers (MCU/MPU/SOC) · VQFN-32-EP(5x5)++ATMEGA1608-MU from Microchip Tech, in a VQFN-32-EP(5x5). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | PA3 | bidirectional | PORT A bit 3. GPIO on VDD domain. Alt functions: TWI0 (SCL master-slave alt), USART0 XDIR, TCA0 WO3, TCB1 WO, CCL LUT0-OUT. |+| 2 | PA4 | bidirectional | PORT A bit 4. GPIO on VDD domain. Alt functions: USART0 TxD (alt), SPI0 MOSI, TCA0 WO4. |+| 3 | PA5 | bidirectional | PORT A bit 5. GPIO on VDD domain. Alt functions: USART0 RxD (alt), SPI0 MISO, TCA0 WO5. |+| 4 | PA6 | bidirectional | PORT A bit 6. GPIO on VDD domain. Alt functions: USART0 XCK (alt), SPI0 SCK, AC0 OUT (alt). |+| 5 | PA7 | bidirectional | PORT A bit 7. GPIO on VDD domain. Alt functions: CLKOUT, AC0 OUT, USART0 XDIR (alt), SPI0 SS, EVOUTA (alt). |+| 6 | PC0 | bidirectional | PORT C bit 0. GPIO on VDD domain. Alt functions: USART1 TxD, SPI0 MOSI (alt), TCA0 WO0 (alt), TCB2 WO, CCL LUT1-IN0. |+| 7 | PC1 | bidirectional | PORT C bit 1. GPIO on VDD domain. Alt functions: USART1 RxD, SPI0 MISO (alt), TCA0 WO1 (alt), CCL LUT1-IN1. |+| 8 | PC2 | bidirectional | PORT C bit 2. GPIO on VDD domain. Alt functions: TWI0 (SCK/SDA master-slave alt), USART1 XCK, SPI0 SCK (alt), TCA0 WO2 (alt), EVOUTC, CCL LUT1-IN2. |+| 9 | PC3 | bidirectional | PORT C bit 3. GPIO on VDD domain. Alt functions: TWI0 (SCL master-slave alt), USART1 XDIR, SPI0 SS (alt), TCA0 WO3 (alt), CCL LUT1-OUT. |+| 10 | PD0 | bidirectional | PORT D bit 0. GPIO on AVDD (analog) domain. Alt functions: ADC0 AIN0, TCA0 WO0 (alt), CCL LUT2-IN0. |+| 11 | PD1 | bidirectional | PORT D bit 1. GPIO on AVDD (analog) domain. Alt functions: ADC0 AIN1, AC0 P3, TCA0 WO1 (alt), CCL LUT2-IN1. |+| 12 | PD2 | bidirectional | PORT D bit 2. GPIO on AVDD (analog) domain. Alt functions: ADC0 AIN2, AC0 P0, TCA0 WO2 (alt), EVOUTD, CCL LUT2-IN2. |+| 13 | PD3 | bidirectional | PORT D bit 3. GPIO on AVDD (analog) domain. Alt functions: ADC0 AIN3, AC0 N0, TCA0 WO3 (alt), CCL LUT2-OUT. |+| 14 | PD4 | bidirectional | PORT D bit 4. GPIO on AVDD (analog) domain. Alt functions: ADC0 AIN4, AC0 P1, TCA0 WO4 (alt). |+| 15 | PD5 | bidirectional | PORT D bit 5. GPIO on AVDD (analog) domain. Alt functions: ADC0 AIN5, AC0 N1, TCA0 WO5 (alt). |+| 16 | PD6 | bidirectional | PORT D bit 6. GPIO on AVDD (analog) domain. Alt functions: ADC0 AIN6, TCB2 WO (alt). |+| 17 | PD7 | bidirectional | PORT D bit 7. GPIO on AVDD (analog) domain. Alt functions: VREFA external voltage reference input, ADC0 AIN7, AC0 N2, EVOUTD (alt). |+| 18 | AVDD | power_in | Analog supply voltage (1.8-5.5 V). Must be tied to the same rail as VDD; supplies the ADC, AC and PORT-D/F analog domain. Decouple with a 100 nF ceramic close to the pin. |+| 19 | GND | power_in | Ground reference for the analog and digital supply. All GND pins must be connected to the board's ground plane. |+| 20 | PF0/TOSC1 | bidirectional | PORT F bit 0 / TOSC1 32.768 kHz crystal input for the RTC. Alt functions: USART2 TxD, TCA0 WO0 (alt), CCL LUT3-IN0. |+| 21 | PF1/TOSC2 | bidirectional | PORT F bit 1 / TOSC2 32.768 kHz crystal output for the RTC. Alt functions: USART2 RxD, TCA0 WO1 (alt), CCL LUT3-IN1. |+| 22 | PF2 | bidirectional | PORT F bit 2. Alt functions: TWI0 SDA (slave alt), ADC0 AIN12, USART2 XCK, TCA0 WO2 (alt), EVOUTF, CCL LUT3-IN2. |+| 23 | PF3 | bidirectional | PORT F bit 3. Alt functions: TWI0 SCL (slave alt), ADC0 AIN13, USART2 XDIR, TCA0 WO3 (alt), CCL LUT3-OUT. |+| 24 | PF4 | bidirectional | PORT F bit 4. Alt functions: ADC0 AIN14, USART2 TxD (alt), TCA0 WO4 (alt), TCB0 WO (alt). |+| 25 | PF5 | bidirectional | PORT F bit 5. Alt functions: ADC0 AIN15, USART2 RxD (alt), TCA0 WO5 (alt), TCB1 WO (alt). |+| 26 | PF6/RESET | bidirectional | PORT F bit 6 / external RESET input (active-low). Function selected by the RSTPINCFG fuse: default is GPIO input; when configured as RESET, drive low to reset the device (internal pull-up present). Alt functions: USART2 XCK (alt), CCL LUT3-OUT (alt). |+| 27 | UPDI | bidirectional | Unified Program and Debug Interface. Single-wire bidirectional pin used by the UPDI programmer/debugger; keep accessible on a programming header (e.g. 4.7 kΩ series to protect against contention). |+| 28 | VDD | power_in | Digital supply voltage (1.8-5.5 V). Decouple with a 100 nF ceramic close to the pin; supplies the CPU core, PORT A/C/F digital domain and peripherals. |+| 29 | GND | power_in | Ground reference for the digital supply. Tie to the board's ground plane together with pin 19. |+| 30 | PA0/EXTCLK | bidirectional | PORT A bit 0 / external clock input (EXTCLK). Alt functions: USART0 TxD, TCA0 WO0, CCL LUT0-IN0. |+| 31 | PA1 | bidirectional | PORT A bit 1. GPIO on VDD domain. Alt functions: USART0 RxD, TCA0 WO1, CCL LUT0-IN1. |+| 32 | PA2 | bidirectional | PORT A bit 2. GPIO on VDD domain. Alt functions: TWI0 SDA (master-slave default), USART0 XCK, TCA0 WO2, TCB0 WO, EVOUTA, CCL LUT0-IN2. |+| EP | EP | passive | Exposed thermal pad on the underside of the VQFN package. Datasheet states it may be left electrically unconnected but must be soldered or glued for mechanical stability; commonly tied to GND for best thermal/EMI performance. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Microchip Tech |+| Package | VQFN-32-EP(5x5) |+| Category | Embedded Processors & Controllers |+| Pins | 33 |++## Ordering variants++Same part, different packaging or reel option.++- `ATMEGA1608-MU`+- `ATMEGA1608-MUR`+- `ATMEGA1608-MUMF`+- `ATMEGA1608-MUMFR`+- `ATMEGA1608-MUAU`+- `ATMEGA1608-MUAUR`+- `ATMEGA1608-MUAF`+- `ATMEGA1608-MUAFR`+- `ATMEGA1608-MUXU`+- `ATMEGA1608-MUXUR`+- `ATMEGA1608-MUXF`+- `ATMEGA1608-MUXFR`++## CAD (KiCad official)++- Symbol: `ATMEGA1608-MU`+- Footprint: `Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.3x3.3mm`+- 3D model: VQFN-32-EP(5x5) (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Microchip Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588943153210933248) (None pp, sha256 `11b98b7b422fa15b`, retrieved 2026-08-17, tier: lcsc)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/atmega1608-mu-datasheet.pdf)