ATTINY43U-SUR Atmel, ATTINY43U-SUR Datasheet - Page 130
ATTINY43U-SUR
Manufacturer Part Number
ATTINY43U-SUR
Description
MCU AVR 4KB FLASH 8MHZ 20SOIC
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY43U-SU.pdf
(182 pages)
Specifications of ATTINY43U-SUR
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
USI
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
16
Program Memory Size
4KB (2K x 16)
Program Memory Type
FLASH
Eeprom Size
64 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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ATtiny43U
DIDR0 – Digital Input Disable Register 0
Table 16-6.
• Bits 3:0 – ADC[3:0]D: ADC[3:0] Digital Input Disable
When this bit is written logic one, the digital input buffer on the corresponding ADC pin is dis-
abled. The corresponding PIN register bit will always read as zero when this bit is set. When an
analog signal is applied to the ADC[3:0] pin 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
0x01 (0x21)
Read/Write
Initial Value
ADTS2
1
1
1
ADC Auto Trigger Source Selections (Continued)
R
7
–
0
ADTS1
R
6
–
0
0
1
1
AIN1D
R/W
5
0
AIN0D
R/W
ADTS0
4
0
1
0
1
ADC3D
R/W
3
0
Trigger Source
Timer/Counter1 Compare Match A
Timer/Counter1 Overflow
Timer/Counter1 Compare Match B
ADC2D
R/W
2
0
ADC1D
R/W
1
0
ADC0D
R/W
0
0
8048B–AVR–03/09
DIDR0
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