ATTINY88-AUR Atmel, ATTINY88-AUR Datasheet - Page 172
ATTINY88-AUR
Manufacturer Part Number
ATTINY88-AUR
Description
MCU AVR 8KB FLASH 12MHZ 32TQFP
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY48-MU.pdf
(302 pages)
Specifications of ATTINY88-AUR
Core Processor
AVR
Core Size
8-Bit
Speed
12MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, WDT
Number Of I /o
28
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
64 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
1.8 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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Manufacturer
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Price
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17.9
172
Analog Noise Canceling Techniques
ATtiny48/88
Figure 17-8. Analog Input Circuitry
Note:
Digital circuitry inside and outside the device generates EMI which might affect the accuracy of
analog measurements. When conversion accuracy is critical, the noise level can be reduced by
applying the following techniques:
Figure 17-9. ADC Power Connections
• Keep analog signal paths as short as possible.
• Make sure analog tracks run over the analog ground plane.
• Keep analog tracks well away from high-speed switching digital tracks.
• If any port pin is used as a digital output, it mustn’t switch while a conversion is in progress.
• The analog supply voltage pin (AV
(V
CC
) via an LC network as shown in
The capacitor in the figure depicts the total capacitance, including the sample/hold capacitor and
any stray or parasitic capacitance inside the device. The value given is worst case.
ADCn
I
IH
I
IL
CC
) should be connected to the digital supply voltage pin
Figure
17-9.
1..100 kOhm
PC1 (ADC1)
PC0 (ADC0)
PA1 (ADC7)
GND
PC7
PA0 (ADC6)
AVCC
PB5
C
VCC
S/H
= 14 pF
V
CC
/2
8008G–AVR–04/11
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