ATMEGA324P-A15MZ Atmel, ATMEGA324P-A15MZ Datasheet - Page 57

• Manufacturer Part Number: ATMEGA324P-A15MZ
• Description: MCU AVR 32KB FLASH 15MHZ 44-VQFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA324P-A15MZ

• Package / Case: 44-VQFN Exposed Pad
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Speed: 16MHz
• Number Of I /o: 32
• Eeprom Size: 1K x 8
• Core Processor: AVR
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Program Memory Size: 32KB (32K x 8)
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Connectivity: I²C, SPI, UART/USART
• Core Size: 8-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Alternate Functions of
Port B
2503N–AVR–06/08
Table 24. Overriding Signals for Alternate Functions in PA3..PA0
The Port B pins with alternate functions are shown in
Table 25. Port B Pins Alternate Functions
The alternate pin configuration is as follows:
• SCK – Port B, Bit 7
SCK: Master Clock output, Slave Clock input pin for SPI. When the SPI is enabled as a Slave,
this pin is configured as an input regardless of the setting of DDB7. When the SPI is enabled as
a Master, the data direction of this pin is controlled by DDB7. When the pin is forced by the SPI
to be an input, the pull-up can still be controlled by the PORTB7 bit.
• MISO – Port B, Bit 6
MISO: Master Data input, Slave Data output pin for SPI. When the SPI is enabled as a Master,
this pin is configured as an input regardless of the setting of DDB6. When the SPI is enabled as
a Slave, the data direction of this pin is controlled by DDB6. When the pin is forced by the SPI to
be an input, the pull-up can still be controlled by the PORTB6 bit.
Signal Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
Port Pin
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
Alternate Functions
SCK (SPI Bus Serial Clock)
MISO (SPI Bus Master Input/Slave Output)
MOSI (SPI Bus Master Output/Slave Input)
SS (SPI Slave Select Input)
AIN1 (Analog Comparator Negative Input)
OC0 (Timer/Counter0 Output Compare Match Output)
AIN0 (Analog Comparator Positive Input)
INT2 (External Interrupt 2 Input)
T1 (Timer/Counter1 External Counter Input)
T0 (Timer/Counter0 External Counter Input)
XCK (USART External Clock Input/Output)
PA3/ADC3
ADC3 INPUT
0
0
0
0
0
0
0
0
–
PA2/ADC2
ADC2 INPUT
0
0
0
0
0
0
0
0
–
Table
PA1/ADC1
ADC1 INPUT
25.
0
0
0
0
0
0
0
0
–
ATmega32(L)
PA0/ADC0
ADC0 INPUT
0
0
0
0
0
0
0
0
–
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