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Contents

README

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AT90PWM316-16MU

Microchip Tech · Pre-ordered MCUs · QFN-32-EP(7x7)

AT90PWM316-16MU from Microchip Tech, in a QFN-32-EP(7x7). 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 PD2 bidirectional Port D bit 2 I/O with alternate functions PSCIN2 (PSC 2 digital input), OC1A (Timer 1 output compare A) and MISO_A (programming/alternate SPI MISO).
2 PD3 bidirectional Port D bit 3 I/O with alternate functions TXD (DALI/UART Tx), OC0A, SS (SPI slave select) and MOSI_A (programming/alternate SPI MOSI).
3 PC1 bidirectional Port C bit 1 I/O with alternate functions PSCIN1 (PSC 1 digital input) and OC1B (Timer 1 output compare B).
4 VCC power_in Digital power supply (operating voltage 2.7V to 5.5V).
5 GND power_in Ground, 0V reference.
6 PC2 bidirectional Port C bit 2 I/O with alternate functions T0 (Timer 0 clock input) and PSCOUT22 output.
7 PC3 bidirectional Port C bit 3 I/O with alternate functions T1 (Timer 1 clock input) and PSCOUT23 output.
8 PB0 bidirectional Port B bit 0 I/O with alternate functions MISO (SPI Master In Slave Out) and PSCOUT20 output.
9 PB1 bidirectional Port B bit 1 I/O with alternate functions MOSI (SPI Master Out Slave In) and PSCOUT21 output.
10 PE1 bidirectional Port E bit 1 I/O; XTAL1 oscillator/clock input depending on clock fuse settings, alternate function OC0B (Timer 0 output compare B).
11 PE2 bidirectional Port E bit 2 I/O; XTAL2 oscillator output depending on clock fuse settings, alternate function ADC0 (analog input channel 0).
12 PD4 bidirectional Port D bit 4 I/O with alternate functions ADC1, RXD (DALI/UART Rx), ICP1A (Timer 1 input capture) and SCK_A (programming/alternate SPI clock).
13 PD5 bidirectional Port D bit 5 I/O with alternate functions ADC2 (analog input channel 2) and ACMP2 (analog comparator 2 positive input).
14 PD6 bidirectional Port D bit 6 I/O with alternate functions ADC3 (analog input channel 3), ACMPM (reference for analog comparators) and INT0.
15 PD7 bidirectional Port D bit 7 I/O with alternate function ACMP0 (analog comparator 0 positive input).
16 PB2 bidirectional Port B bit 2 I/O with alternate functions ADC5 (analog input channel 5) and INT1.
17 PC4 bidirectional Port C bit 4 I/O with alternate functions ADC8 (analog input channel 8) and AMP1- (differential amplifier 1 input).
18 PC5 bidirectional Port C bit 5 I/O with alternate functions ADC9 (analog input channel 9) and AMP1+ (differential amplifier 1 input).
19 AVCC power_in Analog power supply for the A/D converter; must be connected externally to VCC (through a low-pass filter if the ADC is used), even if the ADC is not used.
20 AGND power_in Analog ground, 0V reference for the analog part.
21 AREF passive Analog reference voltage of the A/D converter; as output it can be used by external analog circuitry.
22 PC6 bidirectional Port C bit 6 I/O with alternate functions ADC10 (analog input channel 10) and ACMP1 (analog comparator 1 positive input).
23 PB3 bidirectional Port B bit 3 I/O with alternate function AMP0- (differential amplifier 0 input).
24 PB4 bidirectional Port B bit 4 I/O with alternate function AMP0+ (differential amplifier 0 input).
25 PC7 bidirectional Port C bit 7 I/O with alternate function D2A (DAC output).
26 PB5 bidirectional Port B bit 5 I/O with alternate functions ADC6 (analog input channel 6) and INT2.
27 PB6 bidirectional Port B bit 6 I/O with alternate functions ADC7 (analog input channel 7), ICP1B (Timer 1 alternate input capture) and PSCOUT11 output.
28 PB7 bidirectional Port B bit 7 I/O with alternate functions PSCOUT01 output, ADC4 (analog input channel 4) and SCK (SPI clock).
29 PD0 bidirectional Port D bit 0 I/O with alternate functions PSCOUT00 output, XCK (UART transfer clock) and SS_A (alternate SPI slave select).
30 PC0 bidirectional Port C bit 0 I/O with alternate functions PSCOUT10 output and INT3.
31 PE0 bidirectional Port E bit 0: RESET input (low level longer than minimum pulse length generates a reset) unless RSTDISBL fuse is programmed, in which case it is an I/O; also OCD (on-chip debug I/O).
32 PD1 bidirectional Port D bit 1 I/O with alternate functions PSCIN0 (PSC 0 digital input) and CLKO (system clock output).
33 EP power_in Center GND paddle, which has to be connected to GND.

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package QFN-32-EP(7x7)
Category Embedded Processors & Controllers
Pins 33

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Operating Voltage VCC 2.7 5.5 V AT90PWM316-16MU, 16 MHz 18
Extended Operating Temperature -40 105 °C Extended range, QFN32 18

CAD (KiCad official)

  • Symbol: AT90PWM316-16MU
  • Footprint: Package_DFN_QFN:QFN-32-1EP_7x7mm_P0.65mm_EP4.7x4.7mm
  • 3D model: QFN-32-EP(7x7) (KiCad packages3D, STEP)
  • 3D model files: at90pwm316-16mu-etched.step / at90pwm316-16mu-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); at90pwm316-16mu.step / at90pwm316-16mu.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (28 pp, sha256 7359c126d2e451fd, 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