ATTINY87-15SZ Atmel, ATTINY87-15SZ Datasheet - Page 214
![MCU AVR 8K FLASH 15MZ 32-SOIC](/photos/6/80/68042/453-20-soic_sml.jpg)
ATTINY87-15SZ
Manufacturer Part Number
ATTINY87-15SZ
Description
MCU AVR 8K FLASH 15MZ 32-SOIC
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY167-15MD.pdf
(283 pages)
Specifications of ATTINY87-15SZ
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
I²C, LIN, SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
16
Program Memory Size
8KB (4K x 16)
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 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
20-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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18.2.2
214
ATtiny87/ATtiny167
Analog Compare Negative Input
Table 18-2.
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 18-3.
ACIRS
ACME
0
1
1
1
1
1
0
1
1
1
1
1
1
1
1
1
1
1
1
x
ACIR[1..0]
0 0
0 1
1 0
1 1
x
x
Analog Comparator Positive Input
Analog Comparator Negative Input
ADEN
b
b
b
b
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 0011
0 0100
0 0101
0 0110
0 0111
0 1000
0 1001
0 1010
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
Analog Comparator Positive Input - Comment
AIN1
AIN1
ADC0
ADC1
ADC2
ADC3 / ISRC
ADC4
ADC5
ADC6
ADC7
ADC8
ADC9
ADC10
This doesn’t make sense - Don’t use.
/
/
/
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.
7728G–AVR–06/10
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