AT90PWM81-16SF Atmel, AT90PWM81-16SF Datasheet - Page 192
AT90PWM81-16SF
Manufacturer Part Number
AT90PWM81-16SF
Description
IC MCU AVR 8K FLASH ISP 20SOIC
Manufacturer
Atmel
Series
AVR® 90PWM Lightingr
Datasheet
1.AT90PWM81-16MN.pdf
(325 pages)
Specifications of AT90PWM81-16SF
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI
Peripherals
Brown-out Detect/Reset, PWM, WDT
Number Of I /o
16
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
20-SOIC (7.5mm Width)
For Use With
ATSTK600-SOIC - STK600 SOCKET/ADAPTER FOR SOIC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT90PWM81-16SF
Manufacturer:
Atmel
Quantity:
2 428
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Figure 15-2.
15.4
Figure 15-3.
192
1.0
1.5
BG Ref erence
0.5
Temperature Measurement
AT90PWM81
-40
VPTAT
Illustration of Vbg as a function of temperature.
Temperature sensor Circuitry
-20
BGCRR is used to move the top of the Vbg curve to the
center of the temperature range of interest
The temperature measurement is based on an on-chip temperature sensor that is coupled to a single ended
ADC12 channel, as shown on
Selecting the ADC12 channel by writing the MUX3..0 bits in ADMUX register to “1100” enables the
temperature sensor (see
ADC voltage reference source is the internal 2.56V voltage reference for temperature sensor measure-
ment. When the temperature sensor is enabled, the ADC converter can be used in single conversion mode
to measure the voltage over the temperature sensor. The amplifier allows to charge the ADC sample
capacitor at full CKadc clock speed. The measured voltage has a linear relationship to temperature as
-0
Enable when
ADEN=1
Current-voltage
Convertor
Temperature range of interest
20
40
See “ADC Multiplexer Register – ADMUX” on page
Enable when
ADC Mux=1100
Temperature (°C)
Figure
60
+
-
15-3.
80
ADC Mux=1100
100
Vtemp
216.). The recommended
7734P–AVR–08/10
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