ATTINY44A-MMHR Atmel, ATTINY44A-MMHR Datasheet - Page 133
ATTINY44A-MMHR
Manufacturer Part Number
ATTINY44A-MMHR
Description
MCU AVR 4KB FLASH 20MHZ 20QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY44A-MMHR
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
USI
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
12
Program Memory Size
4KB (2K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- Current page: 133 of 286
- Download datasheet (10Mb)
16.3
8183C–AVR–03/11
Operation
Figure 16-1.
In order to be able to use the ADC the Power Reduction bit, PRADC, in the Power Reduction
Register must be disabled. This is done by clearing the PRADC bit. See
tion Register” on page 37
The ADC is enabled by setting the ADC Enable bit, ADEN in ADCSRA. Voltage reference and
input channel selections will not go into effect until ADEN is set. The ADC does not consume
power when ADEN is cleared, so it is recommended to switch off the ADC before entering power
saving sleep modes.
The ADC converts an analog input voltage to a 10-bit digital value using successive approxima-
tion. The minimum value represents GND and the maximum value represents the reference
Analog to Digital Converter Block Schematic
ADC7
ADC6
ADC5
ADC4
ADC3
ADC2
ADC1
ADC0
AREF
V
for more details.
CC
TEMPERATURE
REFERENCE
8-BIT DATA BUS
ADC CTRL. & STATUS B
INTERNAL
AGND
REGISTER (ADCSRB)
SENSOR
1.1V
ADC8
INPUT
INPUT
POS.
MUX
NEG.
MUX
ADTS[2:0]
ADC MULTIPLEXER
SELECT (ADMUX)
MUX DECODER
+
-
GAIN
AMPLIFIER
SINGLE ENDED / DIFFERENTIAL SELECTION
ATtiny24A/44A/84A
10-BIT DAC
ADC CTRL. & STATUS A
REGISTER (ADCSRA)
ADC CONVERSION
COMPLETE IRQ
PRESCALER
CONVERSION LOGIC
“PRR – Power Reduc-
INTERRUPT
TRIGGER
FLAGS
SELECT
SAMPLE & HOLD
COMPARATOR
15
+
-
ADC DATA REGISTER
(ADCH/ADCL)
ADC MULTIPLEXER
OUTPUT
0
133
Related parts for ATTINY44A-MMHR
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
Part Number:
Description:
IC MCU AVR 4K FLASH 20MHZ 14SOIC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC MCU AVR 4K FLASH 20MHZ 20QFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU AVR 4KB FLASH 20MHZ 14SOIC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC MCU AVR 4K FLASH 20MHZ 14PDIP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU AVR 4KB FLASH 20MHZ 15UFBGA
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU AVR 4KB FLASH 20MHZ 20QFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU AVR 4KB FLASH 20MHZ 20VQFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC MCU AVR 4KB FLASH 20MHZ 14SOI
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU AVR 2KB FLASH 20MHZ 16-UFBGA
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU AVR 2KB FLASH 20MHZ 14-SOIC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
8-bit Microcontrollers - MCU 4KB FL 256B EE 256B SRAM 20MHz Hi +125C
Manufacturer:
Atmel
Part Number:
Description:
8-bit Microcontrollers - MCU 4KB FL 256B EE 256B SRAM 20MHz Hi +125C
Manufacturer:
Atmel