ATMEGA128-16AI Atmel, ATMEGA128-16AI Datasheet - Page 263

IC AVR MCU 128K 16MHZ 64-TQFP

ATMEGA128-16AI

Manufacturer Part Number
ATMEGA128-16AI
Description
IC AVR MCU 128K 16MHZ 64-TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheets

Specifications of ATMEGA128-16AI

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-TQFP, 64-VQFP
For Use With
ATSTK501 - ADAPTER KIT FOR 64PIN AVR MCU
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
Q1167170A

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2467V–AVR–02/11
Table 104. Boundary-scan Signals for the ADC (Continued)
Note:
If the ADC is not to be used during scan, the recommended input values from
be used. The user is recommended not to use the Differential Gain stages during scan. Switch-
Cap based gain stages require fast operation and accurate timing which is difficult to obtain
when used in a scan chain. Details concerning operations of the differential gain stage is there-
fore not provided.
Signal
Name
MUXEN_7
MUXEN_6
MUXEN_5
MUXEN_4
MUXEN_3
MUXEN_2
MUXEN_1
MUXEN_0
NEGSEL_2
NEGSEL_1
NEGSEL_0
PASSEN
PRECH
SCTEST
ST
VCCREN
Incorrect setting of the switches in
part. There are several input choices to the S&H circuitry on the negative input of the output com-
parator in
reference source, or Ground.
Direction
as Seen
from the
ADC
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Figure
131. Make sure only one path is selected from either one ADC pin, Bandgap
Description
Input Mux bit 7
Input Mux bit 6
Input Mux bit 5
Input Mux bit 4
Input Mux bit 3
Input Mux bit 2
Input Mux bit 1
Input Mux bit 0
Input Mux for negative
input for differential signal,
bit 2
Input Mux for negative
input for differential signal,
bit 1
Input Mux for negative
input for differential signal,
bit 0
Enable pass-gate of gain
stages.
Precharge output latch of
comparator. (Active low)
Switch-cap TEST enable.
Output from x10 gain
stage send out to Port Pin
having ADC_4
Output of gain stages will
settle faster if this signal is
high first two ACLK
periods after AMPEN goes
high.
Selects Vcc as the ACC
reference voltage.
Figure 131
will make signal contention and may damage the
Recommended
Input
when not
in Use
0
0
0
0
0
0
0
1
0
0
0
1
1
0
0
0
Output Values when
Recommended Inputs
are Used, and CPU is
not Using the ADC
ATmega128
Table 104
0
0
0
0
0
0
0
1
0
0
0
1
1
0
0
0
should
263

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