ATMEGA16U4-MU Atmel, ATMEGA16U4-MU Datasheet - Page 222
ATMEGA16U4-MU
Manufacturer Part Number
ATMEGA16U4-MU
Description
MCU AVR 16K FLASH 16MHZ 44-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA16U4-MU.pdf
(433 pages)
Specifications of ATMEGA16U4-MU
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-VQFN
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
Other names
ATMEGA16U4-16MU
ATMEGA16U4-16MU
ATMEGA16U4-16MU
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7766F–AVR–11/10
A comparison of the USART in MSPIM mode and the SPI pins is shown in
222.
Table 19-4.
• The USART in MSPIM mode includes (double) buffering of the transmitter. The SPI has no
• The USART in MSPIM mode receiver includes an additional buffer level.
• The SPI WCOL (Write Collision) bit is not included in USART in MSPIM mode.
• The SPI double speed mode (SPI2X) bit is not included. However, the same effect is
• Interrupt timing is not compatible.
• Pin control differs due to the master only operation of the USART in MSPIM mode.
buffer.
achieved by setting UBRRn accordingly.
USART_MSPIM
XCKn
RxDn
TxDn
(N/A)
Comparison of USART in MSPIM mode and SPI pins.
MOSI
MISO
SCK
SPI
SS
Comment
Master Out only
Master In only
(Functionally identical)
Not supported by USART in MSPIM
ATmega16/32U4
Table 19-4 on page
222
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