AT90PWM81 Atmel Corporation, AT90PWM81 Datasheet - Page 202
AT90PWM81
Manufacturer Part Number
AT90PWM81
Description
Manufacturer
Atmel Corporation
Datasheet
1.AT90PWM161.pdf
(325 pages)
Specifications of AT90PWM81
Flash (kbytes)
8 Kbytes
Pin Count
20
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
Hardware Qtouch Acquisition
No
Max I/o Pins
20
Ext Interrupts
3
Usb Speed
No
Usb Interface
No
Spi
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
11
Adc Resolution (bits)
10
Adc Speed (ksps)
125
Analog Comparators
3
Resistive Touch Screen
No
Dac Channels
1
Dac Resolution (bits)
10
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
0.25
Eeprom (bytes)
512
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 125
I/o Supply Class
2.7 to 5.5
Operating Voltage (vcc)
2.7 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
1
Output Compare Channels
8
Input Capture Channels
1
Pwm Channels
6
32khz Rtc
No
Calibrated Rc Oscillator
Yes
Available stocks
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16.4.6
16.4.7
202
AT90PWM81
Digital Input Disable Register 0 – DIDR0
Digital Input Disable Register 1– DIDR1
• Bit 7:0 – ACMPMxD and ACMPxD: ACMPxMD, ACMPxD & APM0+Digital Input Disable
When this bit is written logic one, the digital input buffer on the corresponding Analog pin is disabled.
The corresponding PIN Register bit will always read as zero when this bit is set. When an analog signal is
applied to one of these pins and the digital input from this pin is not needed, this bit should be written
logic one to reduce power consumption in the digital input buffer.
• Bit 3, 0: ACMPxMD, ACMPxD & APM0+ Digital Input Disable
When this bit is written logic one, the digital input buffer on the corresponding analog pin is disabled. The
corresponding PIN Register bit will always read as zero when this bit is set. When an analog signal is
applied to one of these pins and the digital input from this pin is not needed, this bit should be written
logic one to reduce power consumption in the digital input buffer.
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
7
ADC8D
AMP3D
R/W
0
7
-
-
0
6
ADC7D
AMP0-D
R/W
0
6
-
-
0
5
ADC5D
ACMP2D
R/W
0
5
-
R/W
0
4
ADC4D
ACMP3MD
R/W
0
4
-
R/W
0
3
ADC3D
ACMPMD
R/W
0
3
ACMP1MD AMP0+D
R/W
0
2
ADC2D
ACMP2MD
R/W
0
2
R/W
0
1
ADC1D
R/W
0
1
ADC10D
R/W
0
0
ADC0D
ACMP1D
R/W
0
0
ADC9D
R/W
0
7734P–AVR–08/10
DIDR0
DIDR1
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