ATMEGA16U4-AU Atmel, ATMEGA16U4-AU Datasheet - Page 287
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
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Part Number
Manufacturer
Quantity
Price
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7766F–AVR–11/10
• 7 - FLERRE - Flow Error Interrupt Enable Flag
Set to enable an endpoint interrupt (EPINTx) when OVERFI or UNDERFI are sent.
Clear to disable an endpoint interrupt (EPINTx) when OVERFI or UNDERFI are sent.
• 6 - NAKINE - NAK IN Interrupt Enable Bit
Set to enable an endpoint interrupt (EPINTx) when NAKINI is set.
Clear to disable an endpoint interrupt (EPINTx) when NAKINI is set.
• 5 - Reserved
The value read from these bits is always 0. Do not set these bits.
• 4 - NAKOUTE - NAK OUT Interrupt Enable Bit
Set to enable an endpoint interrupt (EPINTx) when NAKOUTI is set.
Clear to disable an endpoint interrupt (EPINTx) when NAKOUTI is set.
• 3 - RXSTPE - Received SETUP Interrupt Enable Flag
Set to enable an endpoint interrupt (EPINTx) when RXSTPI is sent.
Clear to disable an endpoint interrupt (EPINTx) when RXSTPI is sent.
• 2 - RXOUTE - Received OUT Data Interrupt Enable Flag
Set to enable an endpoint interrupt (EPINTx) when RXOUTI is sent.
Clear to disable an endpoint interrupt (EPINTx) when RXOUTI is sent.
• 1 - STALLEDE - Stalled Interrupt Enable Flag
Set to enable an endpoint interrupt (EPINTx) when STALLEDI is sent.
Clear to disable an endpoint interrupt (EPINTx) when STALLEDI is sent.
• 0 - TXINE - Transmitter Ready Interrupt Enable Flag
Set to enable an endpoint interrupt (EPINTx) when TXINI is sent.
Clear to disable an endpoint interrupt (EPINTx) when TXINI is sent.
• 7-0 - DAT7:0 -Data Bits
Set by the software to read/write a byte from/to the endpoint FIFO selected by EPNUM.
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
FLERRE
DAT D7
R/W
R/W
7
0
7
0
NAKINE
DAT D6
R/W
R/W
6
0
6
0
DAT D5
R
5
0
-
R/W
5
0
NAKOUTE
DAT D4
R/W
R/W
4
0
4
0
RXSTPE
DAT D3
R/W
R/W
3
0
3
0
RXOUTE
DAT D2
R/W
R/W
ATmega16/32U4
2
0
2
0
STALLEDE
DAT D1
R/W
R/W
1
0
1
0
DAT D0
R/W
TXINE
0
0
R/W
0
0
UEDATX
UEIENX
287
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