ATMEGA168-20PU Atmel, ATMEGA168-20PU Datasheet - Page 370
ATMEGA168-20PU
Manufacturer Part Number
ATMEGA168-20PU
Description
IC AVR MCU 16K 20MHZ 28DIP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheets
1.ATAVRTS2080B.pdf
(378 pages)
2.ATMEGA48-20AU.pdf
(35 pages)
3.ATMEGA88-20MU.pdf
(33 pages)
4.ATMEGA168-20AU.pdf
(359 pages)
Specifications of ATMEGA168-20PU
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
23
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 6x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-DIP (0.300", 7.62mm)
Processor Series
ATMEGA16x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
1 KB
Interface Type
2-Wire, SPI, USART, Serial
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
23
Number Of Timers
3
Operating Supply Voltage
2.7 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
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, 6 Channel
A/d Inputs
6-Channel, 10-Bit
Cpu Speed
20 MIPS
Eeprom Memory
512 Bytes
Input Output
23
Interface
I2C/SPI/UART/USART
Memory Type
Flash
Number Of Bits
8
Package Type
28-pin PDIP
Programmable Memory
16K Bytes
Timers
2-8-bit, 1-16-bit
Voltage, Range
4.5-5.5 V
Controller Family/series
AVR MEGA
No. Of I/o's
23
Eeprom Memory Size
512Byte
Ram Memory Size
1KB
Rohs Compliant
Yes
For Use With
ATSTK600-TQFP32 - STK600 SOCKET/ADAPTER 32-TQFPATSTK600 - DEV KIT FOR AVR/AVR32770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVRATAVRISP2 - PROGRAMMER AVR IN SYSTEMATJTAGICE2 - AVR ON-CHIP D-BUG SYSTEM
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATMEGA168-20PU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
- ATAVRTS2080B PDF datasheet
- ATMEGA48-20AU PDF datasheet #2
- ATMEGA88-20MU PDF datasheet #3
- ATMEGA168-20AU PDF datasheet #4
- Current page: 370 of 378
- Download datasheet (8Mb)
9
10 System Control and Reset .................................................................... 44
11 Interrupts ................................................................................................ 55
12 External Interrupts ................................................................................. 65
ii
Power Management and Sleep Modes ................................................. 38
8.7128 kHz Internal Oscillator ......................................................................................33
8.8External Clock .........................................................................................................34
8.9Clock Output Buffer .................................................................................................34
8.10Timer/Counter Oscillator ........................................................................................35
8.11System Clock Prescaler ........................................................................................35
8.12Register Description ..............................................................................................36
9.1Sleep Modes ............................................................................................................38
9.2Idle Mode .................................................................................................................38
9.3ADC Noise Reduction Mode ....................................................................................39
9.4Power-down Mode ...................................................................................................39
9.5Power-save Mode ....................................................................................................39
9.6Standby Mode .........................................................................................................40
9.7Power Reduction Register .......................................................................................40
9.8Minimizing Power Consumption ..............................................................................40
9.9Register Description ................................................................................................42
10.1Resetting the AVR .................................................................................................44
10.2Reset Sources .......................................................................................................44
10.3Power-on Reset .....................................................................................................45
10.4External Reset .......................................................................................................46
10.5Brown-out Detection ..............................................................................................46
10.6Watchdog System Reset .......................................................................................47
10.7Internal Voltage Reference ....................................................................................47
10.8Watchdog Timer ....................................................................................................48
10.9Register Description ..............................................................................................52
11.1Overview ................................................................................................................55
11.2Interrupt Vectors in ATmega48 ..............................................................................55
11.3Interrupt Vectors in ATmega88 ..............................................................................57
11.4Interrupt Vectors in ATmega168 ............................................................................60
11.5Register Description ..............................................................................................63
12.1Pin Change Interrupt Timing ..................................................................................65
12.2Register Description ..............................................................................................66
ATmega48/88/168
2545S–AVR–07/10
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