AT90USB647-MU Atmel, AT90USB647-MU Datasheet - Page 83

• 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

10.3.4
7593K–AVR–11/09
Alternate Functions of Port C
The Port C alternate function is as follows:
Table 10-9.
Table 10-10
shown in
Table 10-10. Overriding Signals for Alternate Functions in PC7..PC4
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
Figure 10-5 on page
Port Pin
PC7/A15/IC.3/CLK
O
SRE • (XMM<1)
0
SRE • (XMM<1)
1
SRE • (XMM<1)
A15
0
0
ICP3 input
–
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
and
Port C Pins Alternate Functions
Table 10-11
77.
relate the alternate functions of Port C to the overriding signals
Alternate Function
A15/IC.3/CLKO(External Memory interface address bit 15 or
Input Capture Timer 3 or CLKO (Divided System Clock)
A14/OC.3A(External Memory interface address bit 14 or
Output Compare and PWM output A for Timer/Counter3)
A13/OC.3B(External Memory interface address bit 13 or
Output Compare and PWM output B for Timer/Counter3)
A12/OC.3C(External Memory interface address bit 12 or
Output Compare and PWM output C for Timer/Counter3)
A11/T.3(External Memory interface address bit 11or
Timer/Counter3 Clok Input)
A10(External Memory interface address bit 10)
A9(External Memory interface address bit 9)
A8(External Memory interface address bit 8)
PC6/A14/OC.3A
SRE •
(XMM<2)|OC3A
enable
0
SRE • (XMM<2)
1
SRE • (XMM<2)
if (SRE.XMM<2)
then A14
else OC3A
0
0
–
–
PC5/A13/OC.3B
SRE •
(XMM<3)|OC3B
enable
0
SRE • (XMM<3)
1
SRE • (XMM<3)
if (SRE.XMM<2)
then A13
else OC3B
0
0
–
–
AT90USB64/128
PC4/A12/OC.3C
SRE •
(XMM<4)|OC3C
enable
0
SRE • (XMM<4)
1
SRE • (XMM<4)
if (SRE.XMM<2)
then A12
else OC3C
0
0
–
–
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