ATMEGA16U2-MU Atmel, ATMEGA16U2-MU Datasheet - Page 244
ATMEGA16U2-MU
Manufacturer Part Number
ATMEGA16U2-MU
Description
MCU AVR 16K FLASH USB 32-VQFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA16U2-MU
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
16KB (8K 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-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
Core
AVR8
Processor Series
ATMEGA16x
Data Bus Width
8 bit
Maximum Clock Frequency
16 MHz
Data Ram Size
1.25 KB
Data Rom Size
512 B
Number Of Programmable I/os
22
Number Of Timers
2
Mounting Style
SMD/SMT
Height
0.95 mm
Interface Type
SPI, UART
Length
5 mm
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.7 V
Width
5 mm
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32ATSTK500 - PROGRAMMER AVR STARTER KIT
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:
ATMEGA16U2-MU
Manufacturer:
RALINK
Quantity:
2 400
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24. debugWIRE On-chip Debug System
24.1
24.2
24.3
7799D–AVR–11/10
Features
Overview
Physical Interface
•
•
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•
•
•
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The debugWIRE On-chip debug system uses a One-wire, bi-directional interface to control the
program flow, execute AVR instructions in the CPU and to program the different non-volatile
memories.
When the debugWIRE Enable (DWEN) Fuse is programmed and Lock bits are unprogrammed,
the debugWIRE system within the target device is activated. The RESET port pin is configured
as a wire-AND (open-drain) bi-directional I/O pin and becomes the communication gateway
between target and emulator.
Figure 24-1. The debugWIRE Setup
Figure 24-1
connector. The system clock is not affected by debugWIRE and will always be the clock source
selected by the CKSEL Fuses.
Complete Program Flow Control
Emulates All On-chip Functions, Both Digital and Analog, except RESET Pin
Real-time Operation
Symbolic Debugging Support (Both at C and Assembler Source Level, or for Other HLLs)
Unlimited Number of Program Break Points (Using Software Break Points)
Non-intrusive Operation
Electrical Characteristics Identical to Real Device
Automatic Configuration System
High-Speed Operation
Programming of Non-volatile Memories
shows the schematic of a target MCU, with debugWIRE enabled, and the emulator
d W
GND
d W(RESET)
ATmega8U2/16U2/32U2
VCC
2.7 - 5.5
244
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