ATMEGA164P-20MU Atmel, ATMEGA164P-20MU Datasheet - Page 85

• Manufacturer Part Number: ATMEGA164P-20MU
• Description: IC MCU AVR 16K FLASH 44-QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA164P-20MU

• 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: 32
• 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 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-VQFN Exposed Pad
• Processor Series: ATMEGA16x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: 2-Wire/JTAG/SPI/USART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• 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: 8-ch x 10-bit
• Package: 44MLF
• Device Core: AVR
• Family Name: ATmega
• Maximum Speed: 20 MHz
• Operating Supply Voltage: 3.3|5 V
• For Use With: ATSTK600-TQFP44 - STK600 SOCKET/ADAPTER 44-TQFPATSTK600 - DEV KIT FOR AVR/AVR32770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRISP2 - PROGRAMMER AVR IN SYSTEM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

11.3.3
8011O–AVR–07/10
Alternate Functions of Port C
The Port C pins with alternate functions are shown in
Table 11-9.
• TOSC2/PCINT23 – Port C, Bit 7
TOSC2, Timer Oscillator pin 2. The PC7 pin can serve as an external interrupt source to the
MCU.
PCINT23, Pin Change Interrupt source 23: The PC7 pin can serve as an external interrupt
source.
• TOSC1/PCINT22 – Port C, Bit 6
TOSC1, Timer Oscillator pin 1. The PC6 pin can serve as an external interrupt source to the
MCU.
PCINT22, Pin Change Interrupt source 22: The PC6 pin can serve as an external interrupt
source.
• TDI/PCINT21 – Port C, Bit 5
TDI, JTAG Test Data Input.
PCINT21, Pin Change Interrupt source 21: The PC5 pin can serve as an external interrupt
source.
• TDO/PCINT20 – Port C, Bit 4
TDO, JTAG Test Data Output.
PCINT20, Pin Change Interrupt source 20: The PC4 pin can serve as an external interrupt
source.
Port Pin
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
Alternate Function
TOSC2 (Timer Oscillator pin 2)
PCINT23 (Pin Change Interrupt 23)
TOSC1 (Timer Oscillator pin 1)
PCINT22 (Pin Change Interrupt 22)
TDI (JTAG Test Data Input)
PCINT21 (Pin Change Interrupt 21)
TDO (JTAG Test Data Output)
PCINT20 (Pin Change Interrupt 20)
TMS (JTAG Test Mode Select)
PCINT19 (Pin Change Interrupt 19)
TCK (JTAG Test Clock)
PCINT18 (Pin Change Interrupt 18)
SDA (2-wire Serial Bus Data Input/Output Line)
PCINT17 (Pin Change Interrupt 17)
SCL (2-wire Serial Bus Clock Line)
PCINT16 (Pin Change Interrupt 16)
Port C Pins Alternate Functions
ATmega164P/324P/644P
Table
11-9.
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