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AT89LP6440 Datasheet(PDF) 134 Page - ATMEL Corporation

Part # AT89LP6440
Description  8-bit Microcontroller with 64K Bytes In-System Programmable Flash
PDF  194 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT89LP6440 Datasheet(HTML) 134 Page - ATMEL Corporation

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134
3706A–MICRO–9/09
AT89LP6440 - Preliminary
Figure 20-1. DADC Block Diagram
Table 20-1.
Example ADC Conversion Codes
Right Adjust
Left Adjust
Single-Ended Mode (VIN)
Differential Mode (VIN+ – VIN-)
00
AVDD/2
0
0100h
4000h
AVDD/2 + 1/2 x VREF
1/2 x VREF
01FFh
7FC0h
AVDD/2 + 511/512 x VREF
511/512 x VREF
FF00h
C000h
AVDD/2 – 1/2 x VREF
–1/2 x VREF
FE01h
8040h
AVDD/2 – 511/512 x VREF
–511/512 x VREF
8-BIT DATA BUS
15
0
ADC INPUT SELECT
REGISTER (DADI)
ADC CTRL & STATUS
REGISTER (DADC)
ADC DATA REGISTER
(DADH/DADL)
10-BIT SAR
SAMPLE &
HOLD
INTERNAL
1.0V
REFERENCE
AVDD
ADC7
ADC6
ADC5
ADC4
ADC3
ADC2
ADC1
ADC0
+
-
CHANNEL SELECTION
PRESCALER
AGND
POS.
INPUT
MUX
NEG.
INPUT
MUX
TRIGGER
SELECT
Timer
Overflows
INTERRUPT
FLAG
START
AVDD/2
DA+
DA-
VREF
VIN+
VIN-
R
R



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