ATMEGA32U4-AUR Atmel, ATMEGA32U4-AUR Datasheet - Page 77
![MCU AVR 16K FLASH 16MHZ 44TQFP](/photos/6/70/67042/313-44-tqfp_sml.jpg)
ATMEGA32U4-AUR
Manufacturer Part Number
ATMEGA32U4-AUR
Description
MCU AVR 16K FLASH 16MHZ 44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA16U4-MU.pdf
(433 pages)
Specifications of ATMEGA32U4-AUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
I²C, SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
26
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2.5K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Manufacturer
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Price
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10.3.4
7766F–AVR–11/10
Alternate Functions of Port D
The Port D pins with alternate functions are shown in
Table 10-8.
The alternate pin configuration is as follows:
• T0/OC.4D/ADC10 – Port D, Bit 7
T0, Timer/Counter0 counter source.
OC.4D: Timer 4 Output Compare D. This pin can be used to generate a high-speed PWM signal
from Timer 4 module. The pin has to be configured as an output (DDD7 set “one”) to serve this
function.
ADC10: Analog to Digital Converter, Channel 10.
• T1/OC.4D/ADC9 – Port D, Bit 6
T1, Timer/Counter1 counter source.
OC.4D: Timer 4 Output Compare D. This pin can be used to generate a high-speed PWM signal
from Timer 4 module, complementary to OC.4D (PD7) signal. The pin has to be configured as
an output (DDD6 set “one”) to serve this function.
ADC9: Analog to Digital Converter, Channel 9
• XCK1/CTS – Port D, Bit 5
XCK1, USART1 External clock. The Data Direction Register (DDD5) controls whether the clock
is output (DDD5 set) or input (DDD5 cleared). The XCK1 pin is active only when the USART1
operates in Synchronous mode.
CTS: Clear-To-Send flow control signal used by enhanced UART module.
• ICP1/ADC8 – Port D, Bit 4
ICP1 – Input Capture Pin 1: The PD4 pin can act as an input capture pin for Timer/Counter1.
ADC8: Analog to Digital Converter, Channel 8
Port Pin
PD7
PD6
PD5
PD4
PD3
PD2
PD1
PD0
Alternate Function
T0/OC.4D/ADC10 (Timer/Counter0 Clock Input or Timer 4 Output Compare D /
PWM output or Analog to Digital Converter channel 10)
T1/OC.4D/ADC9 (Timer/Counter1 Clock Input or Timer 4 Output
Complementary Compare D / PWM output or Analog to Digital Converter
channel 9)
XCK1/CTS (USART1 External Clock Input/Output or UART flow control CTS
signal)
ICP1/ADC8 (Timer/Counter1 Input Capture Trigger or Analog to Digital
Converter channel 8)
INT3/TXD1 (External Interrupt3 Input or USART1 Transmit Pin)
INT2/RXD1 (External Interrupt2 Input or USART1 Receive Pin)
INT1/SDA (External Interrupt1 Input or TWI Serial DAta)
INT0/SCL/OC0B (External Interrupt0 Input or TWI Serial CLock or Output
Compare for Timer/Counter0)
Port D Pins Alternate Functions
.
.
Table
10-8.
ATmega16/32U4
77
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