AT90PWM1-16MU Atmel, AT90PWM1-16MU Datasheet - Page 189
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AT90PWM1-16MU
Manufacturer Part Number
AT90PWM1-16MU
Description
IC AVR PWM 8KB FLASH 16MHZ 32QFN
Manufacturer
Atmel
Series
AVR® 90PWM Lightingr
Datasheet
1.AT90PWM1-16SU.pdf
(297 pages)
Specifications of AT90PWM1-16MU
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
19
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
32-QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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19.6.2
4378C–AVR–09/08
Analog Noise Canceling Techniques
Figure 19-8. Analog Input Circuitry
Digital circuitry inside and outside the device generates EMI which might affect the accuracy of
analog measurements. If conversion accuracy is critical, the noise level can be reduced by
applying the following techniques:
Figure 19-9. ADC Power Connections
1. Keep analog signal paths as short as possible. Make sure analog tracks run over the
2. The AV
3. Use the ADC noise canceler function to reduce induced noise from the CPU.
4. If any ADC port pins are used as digital outputs, it is essential that these do not
analog ground plane, and keep them well away from high-speed switching digital
tracks.
an LC network as shown in
switch while a conversion is in progress.
CC
pin on the device should be connected to the digital V
ADCn
Figure
I
IH
19-9.
I
IL
1..100 kΩ
C
S/H
= 14 pF
CC
V
CC
AT90PWM1
supply voltage via
/2
189
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