ATMEGA128A-AU Atmel, ATMEGA128A-AU Datasheet - Page 76

• Manufacturer Part Number: ATMEGA128A-AU
• Description: MCU 8BIT 128K ISP FLASH 64-TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA128A-AU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 128KB (64K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 4K 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: 64-TQFP, 64-VQFP
• Processor Series: ATMEGA128x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 4 KB
• Interface Type: JTAG
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 53
• Number Of Timers: 4
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• On-chip Dac: 10 bit, 8 Channel
• Cpu Family: ATmega
• Device Core: AVR
• Device Core Size: 8b
• Frequency (max): 16MHz
• Total Internal Ram Size: 4KB
• # I/os (max): 53
• Number Of Timers - General Purpose: 4
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 64
• Package Type: TQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: Q4784435

12.3.3
8151H–AVR–02/11
Alternate Functions of Port C
Table 12-6.
Note:
Table 12-7.
In ATmega103 compatibility mode, Port C is output only. The ATmega128A is by default
shipped in compatibility mode. Thus, if the parts are not programmed before they are put on the
PCB, PORTC will be output during first power up, and until the ATmega103 compatibility mode
is disabled. The Port C has an alternate function as the address high byte for the External Mem-
ory Interface.
Signal Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
1. See
ATmega103 compatibility mode.
PB3/MISO
SPE • MSTR
PORTB3 • PUD
SPE • MSTR
0
SPE • MSTR
SPI SLAVE OUTPUT
0
0
SPI MSTR INPUT
–
Overriding Signals for Alternate Functions in PB7:PB4
Overriding Signals for Alternate Functions in PB3:PB0
“Output Compare Modulator (OCM1C2)” on page 163
PB7/OC2/OC1C
0
0
0
0
OC2/OC1C ENABLE
OC2/OC1C
0
0
–
–
(1)
PB2/MOSI
SPE • MSTR
PORTB2 • PUD
SPE • MSTR
0
SPE • MSTR
SPI MSTR OUTPUT
0
0
SPI SLAVE INPUT
–
(1)
PB6/OC1B
0
0
0
OC1B ENABLE
OC1B
0
0
–
–
0
PB1/SCK
SPE • MSTR
PORTB1 • PUD
SPE • MSTR
0
SPE • MSTR
SCK OUTPUT
0
0
SCK INPUT
–
PB5/OC1A
0
0
0
0
OC1A ENABLE
OC1A
0
0
–
–
for details. OC1C does not exist in
ATmega128A
PB0/SS
SPE • MSTR
PORTB0 • PUD
SPE • MSTR
0
0
0
0
0
SPI SS
–
PB4/OC0
0
0
0
0
OC0 ENABLE
OC0B
0
0
–
–
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