ATTINY43U-SUR Atmel, ATTINY43U-SUR Datasheet - Page 130

• Manufacturer Part Number: ATTINY43U-SUR
• Description: MCU AVR 4KB FLASH 8MHZ 20SOIC
• Manufacturer: Atmel
• Series: AVR® ATtinyr

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

16.13.5
130
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