ATMEGA64A-ANR Atmel, ATMEGA64A-ANR Datasheet - Page 76

• Manufacturer Part Number: ATMEGA64A-ANR
• Description: IC MCU AVR 64K FLASH 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA64A-ANR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 4K 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: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

13.3.2
8160C–AVR–07/09
Alternate Functions of Port B
Table 13-5.
Note:
The Port B pins with alternate functions are shown in
Table 13-6.
Note:
The alternate pin configuration is as follows:
• OC2/OC1C, Bit 7
OC2, Output Compare Match output: The PB7 pin can serve as an external output for the
Timer/Counter2 Output Compare. The pin has to be configured as an output (DDB7 set (one)) to
serve this function. The OC2 pin is also the output pin for the PWM mode timer function.
OC1C, Output Compare Match C output: The PB7 pin can serve as an external output for the
Timer/Counter1 Output Compare C. The pin has to be configured as an output (DDB7 set (one))
to serve this function. The OC1C pin is also the output pin for the PWM mode timer function.
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
Port Pin
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
1. ADA is short for ADdress Active and represents the time when address is output. See
1. OC1C not applicable in ATmega103 compatibility mode.
nal Memory Interface” on page 23
Alternate Functions
OC2/OC1C
and PWM Output C for Timer/Counter1)
OC1B (Output Compare and PWM Output B for Timer/Counter1)
OC1A (Output Compare and PWM Output A for Timer/Counter1)
OC0 (Output Compare and PWM Output for Timer/Counter0)
MISO (SPI Bus Master Input/Slave Output)
MOSI (SPI Bus Master Output/Slave Input)
SCK (SPI Bus Serial Clock)
SS (SPI Slave Select input)
Overriding Signals for Alternate Functions in PA3:PA0
Port B Pins Alternate Functions
PORTA3 • PUD
OUTPUT • WR
~(WR | ADA) •
A3 • ADA | D3
PA3/AD3
D3 INPUT
WR | ADA
SRE
SRE
SRE
0
0
–
(1)
(Output Compare and PWM Output for Timer/Counter2 or Output Compare
PORTA2 • PUD
OUTPUT • WR
~(WR | ADA) •
A2• ADA | D2
PA2/AD2
D2 INPUT
WR | ADA
SRE
SRE
SRE
0
0
–
for details.
Table
PORTA1 • PUD
OUTPUT • WR
~(WR | ADA) •
A1 • ADA | D1
PA1/AD1
13-6.
WR | ADA
D1 INPUT
SRE
SRE
SRE
0
0
–
(1)
ATmega64A
PORTA0 • PUD
OUTPUT • WR
~(WR | ADA) •
A0 • ADA | D0
PA0/AD0
WR | ADA
D0 INPUT
SRE
SRE
SRE
0
0
–
“Exter-
76