ATMEGA128-16MN Atmel, ATMEGA128-16MN Datasheet - Page 261
ATMEGA128-16MN
Manufacturer Part Number
ATMEGA128-16MN
Description
MCU AVR 128KB FLASH 16MHZ 64QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA128-16MN
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)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-MLF®, 64-QFN
Processor Series
ATMEGA128x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
4 KB
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32ATSTK501 - ADAPTER KIT FOR 64PIN AVR MCUATSTK500 - PROGRAMMER AVR STARTER KIT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Scanning the ADC
2467V–AVR–02/11
Table 103. Boundary-scan Signals for the Analog Comparator
Figure 131
Boundary-scan cell from
used for pure connectivity testing, since all analog inputs are shared with a digital port pin as
well.
Figure 131. Analog to Digital Converter
The signals are described briefly in
Signal
Name
AC_IDLE
ACO
ACME
ACBG
NEGSEL_2
NEGSEL_1
NEGSEL_0
MUXEN_7
MUXEN_6
MUXEN_5
MUXEN_4
MUXEN_3
MUXEN_2
MUXEN_1
MUXEN_0
EXTCH
ADC_7
ADC_6
ADC_5
ADC_4
ADC_3
ADC_2
ADC_1
ADC_0
shows a block diagram of the ADC with all relevant control and observe signals. The
ADC_2
ADC_0
ADC_1
Direction as
Seen from the
Comparator
Input
Output
Input
Input
SCTEST
AMPEN
ACLK
G10
ST
Figure 127
To Comparator
Description
Turns off Analog
comparator when
true
Analog
Comparator
Output
Uses output
signal from ADC
mux when true
Bandgap
Reference enable
+
-
10x
Table
is attached to each of these signals. The ADC need not be
ADCBGEN
VCCREN
IREFEN
AREF
G20
104.
PASSEN
+
-
20x
1.22V
GNDEN
ACTEN
ref
Recommended
Input when not
in Use
1
Will become
input to µC code
being executed
0
0
2.56V
ref
PRECH
DAC_9..0
ADCEN
HOLD
Output values when
Recommended
Inputs are Used
Depends upon µC
code being executed
0
Depends upon µC
code being executed
Depends upon µC
code being executed
PRECH
AREF
10-bit DAC
ATmega128
AREF
+
-
DACOUT
COMP
COMP
261
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