ATMEGA323-8AI Atmel, ATMEGA323-8AI Datasheet - Page 244
![IC AVR MCU 32K 8MHZ IND 44TQFP](/photos/6/70/67042/313-44-tqfp_sml.jpg)
ATMEGA323-8AI
Manufacturer Part Number
ATMEGA323-8AI
Description
IC AVR MCU 32K 8MHZ IND 44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA323L-4PC.pdf
(247 pages)
Specifications of ATMEGA323-8AI
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)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
ATMEGA3238AI
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ATmega323(L)
Clock Generation ............................................................................... 76
Two-wire Serial Interface (Byte Oriented) ..................................... 102
The Analog Comparator.................................................................. 124
Analog to Digital Converter ............................................................ 127
I/O Ports............................................................................................ 137
JTAG Interface and the On-chip Debug System ........................... 157
About Code Examples ........................................................................................ 75
AVR USART vs. AVR UART – Compatibility...................................................... 75
Frame Formats ................................................................................................... 78
Parity Bit Calculation........................................................................................... 79
USART Initialization............................................................................................ 79
Data Transmission – The USART Transmitter ................................................... 81
Data Reception – The USART Receiver ............................................................ 84
Asynchronous Data Reception ........................................................................... 88
Multi-processor Communication Mode ............................................................... 91
Accessing UBRRH/UCSRC Registers................................................................ 92
USART Register Description .............................................................................. 94
Examples of Baud Rate Setting.......................................................................... 99
Two-wire Serial Interface Modes ...................................................................... 107
Master Transmitter Mode.................................................................................. 108
Master Receiver Mode...................................................................................... 108
Slave Receiver Mode........................................................................................ 109
Slave Transmitter Mode.................................................................................... 110
Miscellaneous States........................................................................................ 110
Analog Comparator Multiplexed Input .............................................................. 126
Features............................................................................................................ 127
Operation .......................................................................................................... 128
Prescaling and Conversion Timing ................................................................... 129
ADC Noise Canceler Function.......................................................................... 131
Scanning Multiple Channels ............................................................................. 135
ADC Noise Canceling Techniques ................................................................... 135
ADC Characteristics – Preliminary Data........................................................... 136
Port A................................................................................................................ 137
Port B................................................................................................................ 139
Port C................................................................................................................ 146
Port D................................................................................................................ 151
Features............................................................................................................ 157
Overview........................................................................................................... 157
The Test Access Port – TAP ............................................................................ 158
Using the Boundary-Scan Chain ...................................................................... 161
1457G–AVR–09/03
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