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What is ATMEGA323L?

This electronic component, produced by the manufacturer "ATMEL Corporation", performs the same function as "8-bit Microcontroller with 32K Bytes of In-System Programmable Flash".


ATMEGA323L Datasheet PDF - ATMEL Corporation

Part Number ATMEGA323L
Description 8-bit Microcontroller with 32K Bytes of In-System Programmable Flash
Manufacturers ATMEL Corporation 
Logo ATMEL Corporation Logo 


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Features
High-performance, Low-power AVR® 8-bit Microcontroller
Advanced RISC Architecture
– 130 Powerful Instructions – Most Single-clock Cycle Execution
– 32 x 8 General Purpose Working Registers
– Fully Static Operation
– Up to 8 MIPS Throughput at 8 MHz
– On-chip 2-cycle Multiplier
Non-volatile Program and Data Memories
– 32K Bytes of In-System Self-programmable Flash
Endurance: 1,000 Write/Erase Cycles
– Optional Boot Code Section with Independent Lock Bits
In-System Programming by On-chip Boot Program
– 1K Byte EEPROM
Endurance: 100,000 Write/Erase Cycles
– 2K Bytes Internal SRAM
– Programming Lock for Software Security
JTAG (IEEE Std. 1149.1 Compliant) Interface
– Extensive On-chip Debug Support
– Programming of Flash, EEPROM, Fuses, and Lock Bits through the JTAG Interface
– Boundary-Scan Capabilities According to the JTAG Standard
Peripheral Features
– Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode
– One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture
Mode
– Real Time Counter with Separate Oscillator
– Four PWM Channels
– 8-channel, 10-bit ADC
– Byte-oriented Two-wire Serial Interface
– Programmable Serial USART
– Master/Slave SPI Serial Interface
– Programmable Watchdog Timer with Separate On-chip Oscillator
– On-chip Analog Comparator
Special Microcontroller Features
– Power-on Reset and Programmable Brown-out Detection
– Internal Calibrated RC Oscillator
– External and Internal Interrupt Sources
– Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby
and Extended Standby
I/O and Packages
– 32 Programmable I/O Lines
– 40-pin PDIP and 44-lead TQFP
Operating Voltages
– 2.7 - 5.5V (ATmega323L)
– 4.0 - 5.5V (ATmega323)
Speed Grades
– 0 - 4 MHz (ATmega323L)
– 0 - 8 MHz (ATmega323)
8-bit
Microcontroller
with 32K Bytes
of In-System
Programmable
Flash
ATmega323
ATmega323L
Not recommended
for new designs.
Use ATmega32.
1457G–AVR–09/03

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ATMEGA323L equivalent
Port B (PB7..PB0)
Port C (PC7..PC0)
Port D (PD7..PD0)
RESET
XTAL1
XTAL2
AVCC
AREF
AGND
ATmega323(L)
Port B is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each
bit). The Port B output buffers can sink 20 mA. As inputs, Port B pins that are externally
pulled low will source current if the pull-up resistors are activated. The Port B pins are
tri-stated when a reset condition becomes active, even if the clock is not running.
Port B also serves the functions of various special features of the ATmega323 as listed
on page 139.
Port C is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each
bit). The Port C output buffers can sink 20 mA. As inputs, Port C pins that are externally
pulled low will source current if the pull-up resistors are activated. The Port C pins are
tri-stated when a reset condition becomes active, even if the clock is not running.
Port C also serves the functions of the JTAG interface and other special features of the
ATmega323 as listed on page 146. If the JTAG interface is enabled, the pull-up resistors
on pins PC5 (TDI), PC3 (TMS) and PC2 (TCK) will be activated even if a Reset occurs.
Port D is an 8-bit bidirectional I/O port with internal pull-up resistors (selected for each
bit). The Port D output buffers can sink 20 mA. As inputs, Port D pins that are externally
pulled low will source current if the pull-up resistors are activated. The Port D pins are
tri-stated when a reset condition becomes active, even if the clock is not running.
Port D also serves the functions of various special features of the ATmega323 as listed
on page 151.
Reset input. A low level on this pin for more than 500 ns will generate a Reset, even if
the clock is not running. Shorter pulses are not guaranteed to generate a Reset.
Input to the inverting Oscillator amplifier and input to the internal clock operating circuit.
Output from the inverting Oscillator amplifier.
AVCC is the supply voltage pin for Port A and the A/D Converter. It should be externally
connected to VCC, even if the ADC is not used. If the ADC is used, it should be con-
nected to VCC through a low-pass filter. See page 127 for details on operation of the
ADC.
AREF is the analog reference pin for the A/D Converter. For ADC operations, a voltage
in the range 2.56V to AVCC can be applied to this pin.
Analog ground. If the board has a separate analog ground plane, this pin should be con-
nected to this ground plane. Otherwise, connect to GND.
1457G–AVR–09/03
5


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Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for ATMEGA323L electronic component.


Information Total 70 Pages
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Featured Datasheets

Part NumberDescriptionMFRS
ATmega323The function is 8-bit Microcontroller with 32K Bytes of In-System Programmable Flash. ATMEL CorporationATMEL Corporation
ATMEGA323LThe function is 8-bit Microcontroller with 32K Bytes of In-System Programmable Flash. ATMEL CorporationATMEL Corporation

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