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ATmega169P 데이터시트(PDF) 269 Page - ATMEL Corporation

부품명 ATmega169P
상세설명  8-bit Microcontroller with 16K Bytes In-System Programmable Flash
PDF  393 Pages
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제조업체  ATMEL [ATMEL Corporation]
홈페이지  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATmega169P 데이터시트(HTML) 269 Page - ATMEL Corporation

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269
8018N–AVR–08/09
ATmega169P
HOLD
Input
Sample & Hold signal.
Sample analog signal
when low. Hold signal
when high. If differential
amplifier is used, this
signal must go active
when ACLK is high.
11
IREFEN
Input
Enables Band-gap
reference as AREF
signal to DAC
00
MUXEN_7
Input
Input Mux bit 7
0
0
MUXEN_6
Input
Input Mux bit 6
0
0
MUXEN_5
Input
Input Mux bit 5
0
0
MUXEN_4
Input
Input Mux bit 4
0
0
MUXEN_3
Input
Input Mux bit 3
0
0
MUXEN_2
Input
Input Mux bit 2
0
0
MUXEN_1
Input
Input Mux bit 1
0
0
MUXEN_0
Input
Input Mux bit 0
1
1
NEGSEL_2
Input
Input Mux for negative
input for differential
signal, bit 2
00
NEGSEL_1
Input
Input Mux for negative
input for differential
signal, bit 1
00
NEGSEL_0
Input
Input Mux for negative
input for differential
signal, bit 0
00
PASSEN
Input
Enable pass-gate of
differential amplifier.
11
PRECH
Input
Precharge output latch of
comparator. (Active low)
11
SCTEST
Input
Switch-cap TEST enable.
Output from differential
amplifier is sent out to
Port Pin having ADC_4
00
ST
Input
Output of differential
amplifier will settle faster
if this signal is high first
two ACLK periods after
AMPEN goes high.
00
VCCREN
Input
Selects Vcc as the ACC
reference voltage.
00
Table 25-3.
Boundary-scan Signals for the ADC
(1) (Continued)
Signal
Name
Direction
as Seen
from the
ADC
Description
Recommen-
ded Input
when not
in Use
Output Values when
Recommended Inputs
are Used, and CPU is
not Using the ADC



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