ATTINY167-15XZ Atmel, ATTINY167-15XZ Datasheet - Page 190

• Manufacturer Part Number: ATTINY167-15XZ
• Description: MCU AVR 16K FLASH 15MHZ 20-TSSOP
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY167-15XZ

• 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: 16KB (8K 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-TSSOP
• For Use With: ATSTK600-SOIC - STK600 SOCKET/ADAPTER FOR SOIC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

16.2.2
16.2.3
16.2.4
16.3
16.3.1
190
Control Register
ATtiny87/ATtiny167
Current Source for Low Cost Transducer
Voltage Reference for External Devices
Threshold Reference for Internal Analog Comparator
AMISCR – Analog Miscellaneous Control Register
An external transducer based on a variable resistor can be connected to the Current Source.
This can be, for instance:
Using the Current Source with this type of transducer eliminates the need for additional parts
otherwise required in resistor network or Wheatstone bridge.
An external resistor used in conjunction with the Current Source can be used as voltage refer-
ence for external devices. Using a resistor in serie with a lower tolerance than the Current
Source accuracy ( 2%) is recommended.
using standard values of resistors.
An external resistor used in conjunction with the Current Source can be used as threshold ref-
erence for internal Analog Comparator
This can be connected to AIN0 (negative Analog Compare input pin) as well as AIN1 (positive
Analog Compare input pin). Using a resistor in serie with a lower tolerance than the Current
Source accuracy ( 2%) is recommended.
using standard values of resistors.
• Bit 0 – ISRCEN: Current Source Enable
Writing this bit to one enables the Current Source as shown in
to use DIDR register bit function when ISRCEN is set. It also recommended to turn off the Cur-
rent Source as soon as possible ( ex: once the ADC measurement is done).
Bit
Read/Write
Initial Value
• A thermistor, or temperature-sensitive resistor, used as a temperature sensor,
• A CdS photoconductive cell, or luminosity-sensitive resistor, used as a luminosity sensor,
• ...
R
7
0
-
R
6
0
-
R
5
0
-
(See ”AnaComp - Analog Comparator” on page
Table 16-2
Table 16-2
R
4
0
-
R
3
0
gives an example of threshold references
-
gives an example of voltage references
AREFEN
R/W
2
0
Figure
XREFEN
R/W
16-1. It is recommended
1
0
ISRCEN
R/W
0
0
7728G–AVR–06/10
AMISCR
211.).