ATMEGA168-20PU Atmel, ATMEGA168-20PU Datasheet - Page 77

• Manufacturer Part Number: ATMEGA168-20PU
• Description: IC AVR MCU 16K 20MHZ 28DIP
• Manufacturer: Atmel
• Series: AVR® ATmegar

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

2545E–AVR–02/05
Table 10-7
shown in
Table 10-7.
Note:
Table 10-8.
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
1. When enabled, the 2-wire Serial Interface enables slew-rate controls on the output pins PC4
Figure 10-5 on page
PC6/RESET/PCINT14
RSTDISBL
1
RSTDISBL
0
0
0
RSTDISBL + PCINT14 •
PCIE1
RSTDISBL
PCINT14 INPUT
RESET INPUT
PC3/ADC3/
PCINT11
0
0
0
0
0
0
PCINT11 • PCIE1 +
ADC3D
PCINT11 • PCIE1
PCINT11 INPUT
ADC3 INPUT
and PC5. This is not shown in the figure. In addition, spike filters are connected between the
AIO outputs shown in the port figure and the digital logic of the TWI module.
and
Overriding Signals for Alternate Functions in PC6..PC4
Overriding Signals for Alternate Functions in PC3..PC0
Table 10-8
relate the alternate functions of Port C to the overriding signals
69.
PC2/ADC2/
PCINT10
0
0
0
0
0
0
PCINT10 • PCIE1 +
ADC2D
PCINT10 • PCIE1
PCINT10 INPUT
ADC2 INPUT
PC5/SCL/ADC5/PCINT13
TWEN
PORTC5 • PUD
TWEN
SCL_OUT
TWEN
0
PCINT13 • PCIE1 + ADC5D
PCINT13 • PCIE1
PCINT13 INPUT
ADC5 INPUT / SCL INPUT
PC1/ADC1/
PCINT9
0
0
0
0
0
0
PCINT9 • PCIE1 +
ADC1D
PCINT9 • PCIE1
PCINT9 INPUT
ADC1 INPUT
ATmega48/88/168
PC4/SDA/ADC4/PCINT12
TWEN
PORTC4 • PUD
TWEN
SDA_OUT
TWEN
0
PCINT12 • PCIE1 + ADC4D
PCINT12 • PCIE1
PCINT12 INPUT
ADC4 INPUT / SDA INPUT
(1)
PC0/ADC0/
PCINT8
0
0
0
0
0
0
PCINT8 • PCIE1 +
ADC0D
PCINT8 • PCIE1
PCINT8 INPUT
ADC0 INPUT
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