AT90PWM2-16SQ Atmel, AT90PWM2-16SQ Datasheet - Page 258
![IC AVR MCU FLASH 8K 24SOIC](/photos/6/70/67046/453-24-soic_sml.jpg)
AT90PWM2-16SQ
Manufacturer Part Number
AT90PWM2-16SQ
Description
IC AVR MCU FLASH 8K 24SOIC
Manufacturer
Atmel
Series
AVR® 90PWM Lightingr
Datasheet
1.AT90PWM3B-16SU.pdf
(361 pages)
Specifications of AT90PWM2-16SQ
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
19
Program Memory Size
8KB (8K x 8)
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; D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
24-SOIC (7.5mm Width)
Processor Series
AT90PWMx
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
SPI, USART
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
19
Number Of Timers
2
Operating Supply Voltage
2.7 V to 5.5 V
Maximum Operating Temperature
+ 105 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATAVRFBKIT, ATAVRISP2
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
On-chip Dac
10 bit, 1 Channel
For Use With
ATSTK600-SOIC - STK600 SOCKET/ADAPTER FOR SOICATAVRFBKIT - KIT DEMO BALLAST FOR AT90PWM2ATSTK520 - ADAPTER KIT FOR 90PWM
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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22. Digital to Analog Converter - DAC
22.1
258
Features
AT90PWM2/3/2B/3B
•
•
•
•
•
•
The AT90PWM2/2B/3/3B features a 10-bit Digital to Analog Converter. This DAC can be used
for the analog comparators and/or can be output on the D2A pin of the microcontroller via a ded-
icated driver.
This allows to drive (worst case) a 1nF capacitance in parallel with a resistor higher than 33K
load with a time constant around 1us. Response time and power consumption are improved by
reducing the load (reducing the capacitor value and increasing the load resistor value (The best
case is a high impedance)).
The DAC has a separate analog supply voltage pin, AV
0.3V from V
pin.
The reference voltage is the same as the one used for the ADC,
– ADMUX” on page
age reference may be externally decoupled at the AREF pin by a capacitor for better noise
performance.
10 bits resolution
8 bits linearity
+/- 0.5 LSB accuracy between 150mV and AVcc-150mV
Vout = DAC*Vref/1023
The DAC could be connected to the negative inputs of the analog comparators and/or to a
dedicated output driver.
Output impedance around 100 Ohm.
CC
. See the paragraph
246.. These nominally 2.56V Vref or AV
“ADC Noise Canceler” on page 240
CC
. AV
CC
are provided On-chip. The volt-
CC
See “ADC Multiplexer Register
must not differ more than ±
on how to connect this
4317J–AVR–08/10
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