AT90USB647-MU Atmel, AT90USB647-MU Datasheet - Page 84

• Manufacturer Part Number: AT90USB647-MU
• Description: MCU, 8BIT, 64K FLASH, USB, 64QFN
• Manufacturer: Atmel

Specifications of AT90USB647-MU

• Controller Family/series: AT90
• No. Of I/o's: 48
• Eeprom Memory Size: 2KB
• Ram Memory Size: 4KB
• Cpu Speed: 16MHz
• No. Of: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 64KB
• Oscillator Type: External, Internal
• Package: 64QFN EP
• Device Core: AVR
• Family Name: AT90
• Maximum Speed: 20 MHz
• Ram Size: 4 KB
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 48
• Interface Type: SPI/TWI/USART/USB
• On-chip Adc: 8-chx10-bit
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 4
• Lead Free Status / Rohs Status: Details

10.3.5
84
AT90USB64/128
Alternate Functions of Port D
Table 10-11. Overriding Signals for Alternate Functions in PC3..PC0
The Port D pins with alternate functions are shown in
Table 10-12. Port D Pins Alternate Functions
The alternate pin configuration is as follows:
• T0 – Port D, Bit 7
T0, Timer/Counter0 counter source.
• T1 – Port D, Bit 6
T1, Timer/Counter1 counter source.
• XCK1 – Port D, Bit 5
XCK1, USART1 External clock. The Data Direction Register (DDD5) controls whether the clock
is output (DDD5 set) or input (DDD5 cleared). The XCK1 pin is active only when the USART1
operates in Synchronous mode.
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
Port Pin
PD7
PD6
PD5
PD4
PD3
PD2
PD1
PD0
PC3/A11/T.3
SRE • (XMM<5)
0
SRE • (XMM<5)
1
SRE • (XMM<5)
A11
0
0
T3 input
–
Alternate Function
T0 (Timer/Counter0 Clock Input)
T1 (Timer/Counter1 Clock Input)
XCK1 (USART1 External Clock Input/Output)
ICP1 (Timer/Counter1 Input Capture Trigger)
INT3/TXD1 (External Interrupt3 Input or USART1 Transmit Pin)
INT2/RXD1 (External Interrupt2 Input or USART1 Receive Pin)
INT1/SDA/OC2B (External Interrupt1 Input or TWI Serial DAta or Output
Compare for Timer/Counter2)
INT0/SCL/OC0B (External Interrupt0 Input or TWI Serial CLock or Output
Compare for Timer/Counter0)
PC2/A10
SRE • (XMM<6)
0
SRE • (XMM<6)
1
SRE • (XMM<6)
A10
0
0
–
–
PC1/A9
SRE • (XMM<7)
0
SRE • (XMM<7)
1
SRE • (XMM<7)
A9
0
0
–
–
Table
10-12.
PC0/A8
SRE • (XMM<7)
0
SRE • (XMM<7)
1
SRE • (XMM<7)
A8
0
0
–
–
7593K–AVR–11/09