ATTINY84-20MU Atmel, ATTINY84-20MU Datasheet - Page 132
![IC MCU AVR 8K FLASH 20MHZ 20-QFN](/photos/6/87/68751/313-20-qfn_sml.jpg)
ATTINY84-20MU
Manufacturer Part Number
ATTINY84-20MU
Description
IC MCU AVR 8K FLASH 20MHZ 20-QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY84-20MU
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
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 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
20-MLF®, QFN
Cpu Family
ATtiny
Device Core
AVR
Device Core Size
8b
Frequency (max)
20MHz
Interface Type
SPI/USI
Total Internal Ram Size
512Byte
# I/os (max)
12
Number Of Timers - General Purpose
2
Operating Supply Voltage (typ)
3.3/5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
2.7V
On-chip Adc
8-chx10-bit
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
20
Package Type
MLF
Processor Series
ATTINY8x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
512 B
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
12
Number Of Timers
2
Operating Supply Voltage
2.7 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
Minimum Operating Temperature
- 40 C
Package
20MLF
Family Name
ATtiny
Maximum Speed
20 MHz
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRISP2 - PROGRAMMER AVR IN SYSTEM
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
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Part Number
Manufacturer
Quantity
Price
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16. Analog to Digital Converter
16.1
16.2
132
Features
Overview
ATtiny24/44/84
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The ATtiny24/44/84 features a 10-bit successive approximation ADC. The ADC is connected to
8-pin port A for external sources. In addition to external sources internal temperature sensor can
be measured by ADC. Analog Multiplexer allows eight single-ended channels or 12 differential
channels from Port A. The programmable gain stage provides ampification steps 0 dB (1x) and
26 dB (20x) for 12 differential ADC channels.
The ADC contains a Sample and Hold circuit which ensures that the input voltage to the ADC is
held at a constant level during conversion. A block diagram of the ADC is shown in
on page
Internal reference voltage of nominally 1.1V is provided On-chip. Alternatively, V
as reference voltage for single ended channels. There is also an option to use an external volt-
age reference and turn-off the internal voltage reference.
10-bit Resolution
1.0 LSB Integral Non-linearity
± 2 LSB Absolute Accuracy
13µs Conversion Time
15 kSPS at Maximum Resolution
Eight Multiplexed Single Ended Input Channels
Twelve Differential Input Channels with Selectable Gain (1x, 20x)
Temperature Sensor Input Channel
Optional Left Adjustment for ADC Result Readout
0 - V
1.1V ADC Reference Voltage
Free Running or Single Conversion Mode
ADC Start Conversion by Auto Triggering on Interrupt Sources
Interrupt on ADC Conversion Complete
Sleep Mode Noise Canceler
Unipolar / Bipolar Input Mode
Input Polarity Reversal Mode
CC
133.
ADC Input Voltage Range
CC
8006K–AVR–10/10
can be used
Figure 16-1
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