ATMEGA16U4-AU Atmel, ATMEGA16U4-AU Datasheet - Page 79
ATMEGA16U4-AU
Manufacturer Part Number
ATMEGA16U4-AU
Description
MCU AVR 16K FLASH USB 44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA16U4-MU.pdf
(433 pages)
Specifications of ATMEGA16U4-AU
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
I²C, SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
26
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1.25K 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
Processor Series
ATMEGA16x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
1.25 KB
Interface Type
SPI, TWI, USART
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
26
Number Of Timers
5
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 12 Channel
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32ATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVRATSTK500 - PROGRAMMER AVR STARTER KIT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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7766F–AVR–11/10
Table 10-9.
Table 10-10. Overriding Signals for Alternate Functions in PD3.PD0
Note:
Signal Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
Signal Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
1. When enabled, the 2-wire Serial Interface enables Slew-Rate controls on the output pins PD0
and PD1. This is not shown in this table. In addition, spike filters are connected between the
AIO outputs shown in the port figure and the digital logic of the TWI module.
Overriding Signals for Alternate Functions PD7..PD4
PD3/INT3/TXD1
TXEN1
0
TXEN1
1
TXEN1
TXD1
INT3 ENABLE
1
INT3 INPUT
–
PD7/T0/
OC4D/ADC10
0
0
0
0
0
0
0
0
T0 INPUT
–
PD6/T1/
OC4D/ADC9
0
0
0
0
0
0
0
0
T1 INPUT
–
PD2/INT2/RXD1
RXEN1
PORTD2 • PUD
RXEN1
0
0
0
INT2 ENABLE
1
INT2 INPUT/RXD1
–
PD5/XCK1/CTS
0
0
XCK1 OUTPUT
ENABLE
1
XCK1 OUTPUT
ENABLE
XCK1 OUTPUT
0
0
XCK1 INPUT
–
PD1/INT1/SDA
TWEN
PORTD1 • PUD
TWEN
SDA_OUT
TWEN ENABLE
0
INT1 ENABLE
1
INT1 INPUT
SDA INPUT
ATmega16/32U4
(1)
PD4/ICP1/
ADC8
0
0
0
0
0
0
0
0
ICP1 INPUT
–
PD0/INT0/SCL/
OC0B
TWEN
PORTD0 • PUD
TWEN
SCL_OUT
TWEN | OC0B
ENABLE
OC0B
INT0 ENABLE
1
INT0 INPUT
SCL INPUT
79
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