ATtiny167 Atmel Corporation, ATtiny167 Datasheet - Page 212

• Manufacturer Part Number: ATtiny167
• Manufacturer: Atmel Corporation

Specifications of ATtiny167

• Flash (kbytes): 16 Kbytes
• Pin Count: 20
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 8
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 16
• Ext Interrupts: 16
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Lin: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 11
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 0.5
• Eeprom (bytes): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 3
• Input Capture Channels: 1
• Pwm Channels: 9
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

18.1.2
212
ATtiny87/ATtiny167
Analog Compare Negative Input
Table 18-1.
It is possible to select an internal voltage reference to replace the negative input to the Analog
Comparator. The output of a 2-bit DAC using the Internal Voltage Reference of the DAC is
available when ACIRS bit of ACSR register is set. The voltage reference division factor is
done by ACIR[1:0] of ADCSRB register.
If ACIRS is cleared, AIN0 pin is applied to the negative input to the Analog Comparator.
Table 18-2.
ACIRS
ACME
0
1
1
1
1
1
0
x
1
1
1
1
1
1
1
1
1
1
1
1
ACIR[1:0]
0 0
0 1
1 0
1 1
x
x
Analog Comparator Positive Input
Analog Comparator Negative Input
b
b
b
b
ADEN
x
1
0
0
0
0
0
0
0
0
0
0
0
0
REFS[1:0] Analog Comparator Negative Input - Comment
0 0
0 1
1 0
1 1
1 1
1 1
1 1
x
MUX[4:0]
b
b
b
b
b
b
b
0 0000
0 0001
0 0010
0 0100
0 0101
0 1000
0 1001
0 1010
0 0011
0 0110
0 0111
x xxxx
x xxxx
Other
AIN0
Reserved
2.56 V - using Internal 2.56V Voltage Reference
1.28 V (
0.64 V (
0.32 V (
b
b
b
b
b
b
b
b
b
b
b
b
b
1
1
1
AIN1
AIN1
ADC0
ADC1
ADC2
ADC3 / ISRC
ADC4
ADC5
ADC6
ADC7
ADC8
ADC9
ADC10
This doesn’t make sense - Don’t use.
Analog Comparator Positive Input - Comment
/
/
/
2
4
8
of 2.56 V) - using Internal 2.56V Voltage Reference
of 2.56 V - using Internal 2.56V Voltage Reference
of 2.56 V) - using Internal 2.56V Voltage Reference
ADC
ADC
Switched On
Switched Off.
8265B–AVR–09/10