ATMEGA32L-8MI Atmel, ATMEGA32L-8MI Datasheet - Page 343
ATMEGA32L-8MI
Manufacturer Part Number
ATMEGA32L-8MI
Description
IC AVR MCU 32K LV 8MHZ IND 44QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA32L-8MI
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K 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
44-VQFN Exposed Pad
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Serial Peripheral Interface – SPI 132
USART 140
Two-wire Serial Interface 169
Analog Comparator 198
Analog to Digital Converter 201
Counter Unit 115
Output Compare Unit 116
Compare Match Output Unit 117
Modes of Operation 118
Timer/Counter Timing Diagrams 123
8-bit Timer/Counter Register Description 125
Asynchronous Operation of the Timer/Counter 128
Timer/Counter Prescaler 131
SS Pin Functionality 136
Data Modes 139
Overview 140
Clock Generation 141
Frame Formats 144
USART Initialization 146
Data Transmission – The USART Transmitter 147
Data Reception – The USART Receiver 150
Asynchronous Data Reception 153
Multi-processor Communication Mode 157
Accessing UBRRH/ UCSRC Registers 158
USART Register Description 159
Examples of Baud Rate Setting 165
Features 169
Two-wire Serial Interface Bus Definition 169
Data Transfer and Frame Format 170
Multi-master Bus Systems, Arbitration and Synchronization 172
Overview of the TWI Module 175
TWI Register Description 177
Using the TWI 180
Transmission Modes 183
Multi-master Systems and Arbitration 196
Analog Comparator Multiplexed Input 200
Features 201
Operation 202
Starting a Conversion 203
Prescaling and Conversion Timing 204
Changing Channel or Reference Selection 207
ATmega32(L)
iii
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