ATMEGA8U2-AU Atmel, ATMEGA8U2-AU Datasheet - Page 62
![MCU AVR 8K FLASH 16MHZ 32TQFP](/photos/6/91/69154/313-32-tqfp_sml.jpg)
ATMEGA8U2-AU
Manufacturer Part Number
ATMEGA8U2-AU
Description
MCU AVR 8K FLASH 16MHZ 32TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA8U2-AU
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
22
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-TQFP, 32-VQFP
Processor Series
ATmega
Core
AVR
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
SPI, USART, USB
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
22
Number Of Timers
2
Operating Supply Voltage
5 V
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, AT90USBKEY, ATEVK525
Minimum Operating Temperature
- 40 C
Operating Temperature Range
- 40 C to + 85 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA8U2-AU
Manufacturer:
Atmel
Quantity:
2 772
Part Number:
ATMEGA8U2-AU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
- Current page: 62 of 309
- Download datasheet (6Mb)
Table 10-8.
Table 10-9.
7799D–AVR–11/10
WDP3
WDP3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
WDP2
WDP2
Watchdog Timer Prescale Select, DIV = 5 (CLKwdt = CLK128 / 11)
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
Watchdog Timer Prescale Select, DIV = 6(CLKwdt = CLK128 / 13)
0
0
0
0
1
1
1
1
0
0
WDP1
WDP1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
WDP0
WDP0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Number of WDT Oscillator
Cycles before 1st time-out
Number of WDT Oscillator
Cycles before 1st time-out
1024K (1048576) cycles
1024K (1048576) cycles
128K (131072) cycles
256K (262144) cycles
512K (524288) cycles
128K (131072) cycles
256K (262144) cycles
512K (524288) cycles
16K (16384) cycles
32K (32768) cycles
64K (65536) cycles
16K (16384) cycles
32K (32768) cycles
64K (65536) cycles
2K (2048) cycles
4K (4096) cycles
8K (8192) cycles
2K (2048) cycles
4K (4096) cycles
8K (8192) cycles
(Early warning)
(Early warning)
Early warning Typical
Early warning Typical
Reserved
ATmega8U2/16U2/32U2
Time-out at
Time-out at
V
V
CC
CC
176 ms
352 ms
704 ms
104 ms
208 ms
416 ms
832 ms
88 ms
22.5 s
13.3 s
26.6 s
53.2 s
11.2 s
1.4 s
2.8 s
5.6 s
1.6 s
3.3 s
6.6 s
45s
= 5.0V
= 5.0V
Reset/Interrupt Typical
Reset/Interrupt Typical
Time-out at
Time-out at
V
V
Watchdog
Watchdog
CC
CC
176 ms
352 ms
704 ms
208 ms
416 ms
832 ms
106.4 s
11.2 s
22.5 s
1.64 s
13.3 s
26.6 s
53.2 s
1.4 s
2.8 s
5.6 s
3.3 s
6.6 s
45 s
90 s
= 5.0V
= 5.0V
62
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