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AVR64DB48T-I

Microchip Tech · Microcontroller Units (MCUs/MPUs/SOCs) · VQFN-48(6x6)

AVR64DB48T-I from Microchip Tech, in a VQFN-48(6x6). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 PA5 bidirectional General-purpose I/O PA5 with USART0 RxD (alternate), SPI0 MISO and TCA0 WO5 functions.
2 PA6 bidirectional General-purpose I/O PA6 with USART0 XCK (alternate), SPI0 SCK, TCD0 WOC and CCL LUT0 OUT (alternate).
3 PA7 bidirectional General-purpose I/O PA7 with CLKOUT, AC0/1/2 OUT, ZCD OUT, SPI0 SS, TCD0 WOD and EVOUTA (alternate).
4 PB0 bidirectional General-purpose I/O PB0 with USART3 TxD, TCA0/TCA1 WO0 and CCL LUT4 IN0.
5 PB1 bidirectional General-purpose I/O PB1 with USART3 RxD, TCA0/TCA1 WO1 and CCL LUT4 IN1.
6 PB2 bidirectional General-purpose I/O PB2 with USART3 XCK, TWI1 SDA (host/client), TCA WO2, EVOUTB and CCL LUT4 IN2.
7 PB3 bidirectional General-purpose I/O PB3 with USART3 XDIR, TWI1 SCL (host/client), TCA WO3 and CCL LUT4 OUT.
8 PB4 bidirectional General-purpose I/O PB4 with USART3 TxD (alternate), SPI1 MOSI (alternate), TCA WO4, TCB2 WO and TCD0 WOA (alternate).
9 PB5 bidirectional General-purpose I/O PB5 with USART3 RxD (alternate), SPI1 MISO (alternate), TCA WO5, TCB3 WO and TCD0 WOB (alternate).
10 PC0 bidirectional General-purpose I/O PC0 on the VDDIO2 (MVIO) domain with USART1 TxD, SPI1 MOSI, TCB2 WO and CCL LUT1 IN0.
11 PC1 bidirectional General-purpose I/O PC1 on the VDDIO2 (MVIO) domain with USART1 RxD, SPI1 MISO, TCB3 WO (alternate) and CCL LUT1 IN1.
12 PC2 bidirectional General-purpose I/O PC2 on the VDDIO2 (MVIO) domain with TWI Fm+ capability, USART1 XCK, SPI1 SCK, EVOUTC and CCL LUT1 IN2.
13 PC3 bidirectional General-purpose I/O PC3 on the VDDIO2 (MVIO) domain with TWI Fm+ capability, USART1 XDIR, SPI1 SS and CCL LUT1 OUT.
14 VDDIO2 power_in Supply for the multi-voltage I/O pins (port C); connect to VDD in single-supply mode or to a separate supply in dual-supply mode.
15 GND power_in Ground, common to VDD, AVDD and VDDIO2.
16 PC4 bidirectional General-purpose I/O PC4 on the VDDIO2 (MVIO) domain with alternate USART1 TxD, SPI1 MOSI and TCA0/TCB WO outputs.
17 PC5 bidirectional General-purpose I/O PC5 on the VDDIO2 (MVIO) domain with alternate USART1 RxD, SPI1 MISO and TCA0/TCB WO outputs.
18 PC6 bidirectional General-purpose I/O PC6 on the VDDIO2 (MVIO) domain with alternate AC OUT, USART1 XCK, SPI1 SCK, TWI0 SDA (client) and CCL LUT1 OUT.
19 PC7 bidirectional General-purpose I/O PC7 on the VDDIO2 (MVIO) domain with alternate AC OUT, USART1 XDIR, SPI1 SS, TWI0 SCL (client) and EVOUTC.
20 PD0 bidirectional General-purpose I/O PD0 with ADC0 AIN0, AC AINN1, TCA0 WO0 (alternate) and CCL LUT2 IN0.
21 PD1 bidirectional General-purpose I/O PD1 with ADC0 AIN1, OPAMP OP0 INP, ZCD0 ZCIN, TCA0 WO1 (alternate) and CCL LUT2 IN1.
22 PD2 bidirectional General-purpose I/O PD2 with ADC0 AIN2, AC AINP0, OPAMP OP0 OUT, EVOUTD and CCL LUT2 IN2.
23 PD3 bidirectional General-purpose I/O PD3 with ADC0 AIN3, AC AINN0/AINP1, OPAMP OP0 INN and CCL LUT2 OUT.
24 PD4 bidirectional General-purpose I/O PD4 with ADC0 AIN4, AC AINP2/AINP1, OPAMP OP1 INP and TCA0 WO4 (alternate).
25 PD5 bidirectional General-purpose I/O PD5 with ADC0 AIN5, AC1 AINN0, OPAMP OP1 OUT and TCA0 WO5 (alternate).
26 PD6 bidirectional General-purpose I/O PD6 with ADC0 AIN6, AC AINP3, DAC0 OUT and CCL LUT2 OUT (alternate).
27 PD7 bidirectional General-purpose I/O PD7 with VREFA external reference input, ADC0 AIN7, AC AINN2, OPAMP OP1 INN and EVOUTD (alternate).
28 AVDD power_in Analog supply powering analog peripherals, XOSC32K and I/O lines; internally connected to VDD and must be at the same voltage.
29 GND power_in Analog ground (AGND), common to VDD, AVDD and VDDIO2 ground.
30 PE0 bidirectional General-purpose I/O PE0 with ADC0 AIN8, AC0 AINP1, USART4 TxD and TCA0 WO0 (alternate).
31 PE1 bidirectional General-purpose I/O PE1 with ADC0 AIN9, AC AINP2, OPAMP OP2 INP and USART4 RxD.
32 PE2 bidirectional General-purpose I/O PE2 with ADC0 AIN10, AC0 AINP2, OPAMP OP2 OUT, USART4 XCK and EVOUTE.
33 PE3 bidirectional General-purpose I/O PE3 with ADC0 AIN11, OPAMP OP2 INN, ZCD1 ZCIN and USART4 XDIR.
34 PF0 bidirectional General-purpose I/O PF0 also used as XTAL32K1 (32.768 kHz crystal), with ADC0 AIN16 (not usable as differential negative input), USART2 TxD and CCL LUT3 IN0.
35 PF1 bidirectional General-purpose I/O PF1 also used as XTAL32K2 (32.768 kHz crystal), with ADC0 AIN17 (not usable as differential negative input), USART2 RxD and CCL LUT3 IN1.
36 PF2 bidirectional General-purpose I/O PF2 with TWI Fm+ capability, ADC0 AIN18 (not usable as differential negative input), USART2 XCK, TWI1 SDA, EVOUTF and CCL LUT3 IN2.
37 PF3 bidirectional General-purpose I/O PF3 with TWI Fm+ capability, ADC0 AIN19 (not usable as differential negative input), USART2 XDIR, TWI1 SCL and CCL LUT3 OUT.
38 PF4 bidirectional General-purpose I/O PF4 with ADC0 AIN20 (not usable as differential negative input), alternate USART2 TxD, TCA0 WO4 and TCB0 WO.
39 PF5 bidirectional General-purpose I/O PF5 with ADC0 AIN21 (not usable as differential negative input), alternate USART2 RxD, TCA0 WO5 and TCB1 WO.
40 PF6 input Input-only pin PF6, used as the external RESET input when enabled by the RSTPINCFG fuse (pull-up enabled on PF6).
41 UPDI bidirectional Unified Program and Debug Interface pin for one-wire half-duplex UART programming and debugging; dedicated pin with no other function.
42 VDD power_in Digital supply powering I/O lines, XOSCHF and the internal voltage regulator; the same voltage must be applied to all VDD and AVDD pins.
43 GND power_in Ground, common to VDD, AVDD and VDDIO2.
44 PA0 bidirectional General-purpose I/O PA0 also used as XTALHF1 crystal pin or EXTCLK input, with USART0 TxD, TCA0 WO0 and CCL LUT0 IN0.
45 PA1 bidirectional General-purpose I/O PA1 also used as XTALHF2 crystal pin, with USART0 RxD, TCA0 WO1 and CCL LUT0 IN1.
46 PA2 bidirectional General-purpose I/O PA2 with TWI Fm+ capability, USART0 XCK, TWI0 SDA (host/client), TCA0 WO2, TCB WO and EVOUTA.
47 PA3 bidirectional General-purpose I/O PA3 with TWI Fm+ capability, USART0 XDIR, TWI0 SCL (host/client), TCA0 WO3, TCB1 WO and CCL LUT0 OUT.
48 PA4 bidirectional General-purpose I/O PA4 with USART0 TxD (alternate), SPI0 MOSI, TCA0 WO4 and TCD0 WOA.
49 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package VQFN-48(6x6)
Category Single Chip Microcomputer/Microcontroller
Pins 49

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage VDD 1.8 5.5 V Supply Voltage per ordering table 633
Operating temperature range (Industrial) -40 85 °C I = -40°C to +85°C (Industrial) 634
CPU clock speed 24 MHz AVR CPU clock speeds up to 24 MHz 1
PLL input frequency 16 MHz Minimum input frequency of the PLL 96
PLL output frequency 48 MHz Maximum output frequency 96
External clock frequency on XTALHF1 32 MHz External clock running at up to 32 MHz connected to XTALHF1 96

CAD (KiCad official)

  • Symbol: AVR64DB48T-I
  • Footprint: Package_DFN_QFN:QFN-48-1EP_6x6mm_P0.4mm_EP4.2x4.2mm
  • 3D model: VQFN-48(6x6), generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.9 mm nominal QFN height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
  • 3D model files: avr64db48t-i-etched.step / avr64db48t-i-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); avr64db48t-i.step / avr64db48t-i.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Microchip Tech datasheet (665 pp, sha256 adfeb5005d481e53, retrieved 2026-10-23, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF