ATMEGA128A-MUR Atmel, ATMEGA128A-MUR Datasheet - Page 72
ATMEGA128A-MUR
Manufacturer Part Number
ATMEGA128A-MUR
Description
MCU AVR 128K FLASH 16MHZ 64QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA128A-MUR
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
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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8151H–AVR–02/11
Note:
Table 12-1
ure 12-6
in the modules having the alternate function.
Table 12-1.
The following subsections shortly describes the alternate functions for each port, and relates the
overriding signals to the alternate function. Refer to the alternate function description for further
details.
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
1. WPx, WDx, RLx, RPx, and RDx are common to all pins within the same port. clk
are not shown in the succeeding tables. The overriding signals are generated internally
summarizes the function of the overriding signals. The pin and port indexes from
and PUD are common to all ports. All other signals are unique for each pin.
Generic Description of Overriding Signals for Alternate Functions.
Full Name
Pull-up
Override Enable
Pull-up
Override Value
Data Direction
Override Enable
Data Direction
Override Value
Port Value
Override Enable
Port Value
Override Value
Digital Input
Enable Override
Enable
Digital Input
Enable Override
Value
Digital Input
Analog
Input/output
Description
If this signal is set, the pull-up enable is controlled by the PUOV
signal. If this signal is cleared, the pull-up is enabled when
{DDxn, PORTxn, PUD} = 0b010.
If PUOE is set, the pull-up is enabled/disabled when PUOV is
set/cleared, regardless of the setting of the DDxn, PORTxn, and
PUD Register bits.
If this signal is set, the Output Driver Enable is controlled by the
DDOV signal. If this signal is cleared, the Output driver is
enabled by the DDxn Register bit.
If DDOE is set, the Output Driver is enabled/disabled when
DDOV is set/cleared, regardless of the setting of the DDxn
Register bit.
If this signal is set and the Output Driver is enabled, the port
value is controlled by the PVOV signal. If PVOE is cleared, and
the Output Driver is enabled, the port Value is controlled by the
PORTxn Register bit.
If PVOE is set, the port value is set to PVOV, regardless of the
setting of the PORTxn Register bit.
If this bit is set, the Digital Input Enable is controlled by the
DIEOV signal. If this signal is cleared, the Digital Input Enable is
determined by MCU-state (Normal mode, Sleep modes).
If DIEOE is set, the Digital Input is enabled/disabled when
DIEOV is set/cleared, regardless of the MCU state (Normal
mode, Sleep modes).
This is the Digital Input to alternate functions. In the figure, the
signal is connected to the output of the schmitt trigger but
before the synchronizer. Unless the Digital Input is used as a
clock source, the module with the alternate function will use its
own synchronizer.
This is the Analog Input/output to/from alternate functions. The
signal is connected directly to the pad, and can be used bi-
directionally.
ATmega128A
I/O
, SLEEP,
Fig-
72
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