ATMEGA8515-16AI Atmel, ATMEGA8515-16AI Datasheet - Page 67

• Manufacturer Part Number: ATMEGA8515-16AI
• Description: IC AVR MCU 8K 16MHZ IND 44-TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA8515-16AI

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: EBI/EMI, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 35
• Program Memory Size: 8KB (4K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Converters: -

Alternate Functions Of Port B
2512K–AVR–01/10
Table 28. Overriding Signals for Alternate Functions in PA3..PA0
The Port B pins with alternate functions are shown in Table 29.
Table 29. 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 channel. 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 con-
trolled by the PORTB7 bit.
• MISO – Port B, Bit 6
MISO: Master Data input, Slave Data output pin for SPI channel. 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 con-
trolled 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
PA3/AD3
SRE
~(WR | ADA) •
PortA3
SRE
WR | ADA
SRE
A3 • ADA |
D3 OUTPUT •
WR
0
0
D3 INPUT
–
SCK (SPI Bus Serial Clock)
MISO (SPI Bus Master Input/Slave Output)
MOSI (SPI Bus Master Output/Slave Input)
SS (SPI Slave Select Input)
T0 (Timer/Counter0 External Counter Input)
OC0 (Timer/Counter0 Output Compare Match Output)
Alternate Functions
AIN1 (Analog Comparator Negative Input)
AIN0 (Analog Comparator Positive Input)
T1 (Timer/Counter1 External Counter Input)
PA2/AD2
SRE
~(WR | ADA) •
PortA2
SRE
WR | ADA
SRE
A2 • ADA |
D2 OUTPUT •
WR
0
0
D2 INPUT
–
PA1/AD1
SRE
~(WR | ADA) •
PortA1
SRE
WR | ADA
SRE
A1 • ADA |
D1 OUTPUT •
WR
0
0
D1 INPUT
–
ATmega8515(L)
PA0/AD0
SRE
~(WR | ADA) •
PortA0
SRE
WR | ADA
SRE
A0 • ADA |
D0 OUTPUT •
WR
0
0
D0 INPUT
–
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