ATMEGA128A-AU Datasheet

Description

The Atmel® ATmega128A is an 8-bit CMOS microcontroller based on the AVR® improved RISC architecture. The ATmega128A achieves throughputs close to 1MIPS per MHz by executing strong instructions in a single clock cycle. The system designer is now able to tune the gadget for power consumption vs processing speed.

Features

• High-performance, Low-power AVR® 8-bit Microcontroller
• Advanced RISC Architecture
– 133 Powerful Instructions – Most Single Clock Cycle Execution
– 32 x 8 General Purpose Working Registers + Peripheral Control Registers
– Fully Static Operation
– Up to 16 MIPS Throughput at 16 MHz
– On-chip 2-cycle Multiplier
• High Endurance Non-volatile Memory segments
– 128K Bytes of In-System Self-programmable Flash program memory
– 4K Bytes EEPROM
– 4K Bytes Internal SRAM
– Write/Erase cycles: 10,000 Flash/100,000 EEPROM
– Data retention: 20 years at 85°C/100 years at 25°C (1)
– Optional Boot Code Section with Independent Lock Bits In-System Programming by On-chip Boot Program True Read-While-Write Operation
– Up to 64K Bytes OptionalExternal Memory Space
– Programming Lock for Software Security
– SPI Interface for In-System Programming
• JTAG (IEEE std. 1149.1 Compliant) Interface
– Boundary-scan Capabilities According to the JTAG Standard
– Extensive On-chip Debug Support
– Programming of Flash, EEPROM, Fuses and Lock Bits through the JTAG Interface
• Peripheral Features
– Two 8-bit Timer/Counters with Separate Prescalers and Compare Modes
– Two Expanded 16-bit Timer/Counters with Separate Prescaler, Compare Mode and Capture Mode
– Real Time Counter with Separate Oscillator
– Two 8-bit PWM Channels
– 6 PWM Channels with Programmable Resolution from 2 to 16 Bits
– Output Compare Modulator
– 8-channel, 10-bit ADC
8 Single-ended Channels
7 Differential Channels
2 Differential Channels with Programmable Gain at 1x, 10x, or 200x
– Byte-oriented Two-wire Serial Interface
– Dual Programmable Serial USARTs
– Master/Slave SPI Serial Interface
– Programmable Watchdog Timer with 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
– Software Selectable Clock Frequency
– ATmega103 Compatibility Mode Selected by a Fuse
– Global Pull-up Disable
• I/O and Packages
– 53 Programmable I/O Lines
– 64-lead TQFP and 64-pad QFN/MLF
• Operating Voltages
– 2.7 - 5.5V
• Speed Grades
– 0 - 16 MHz

Attribute	Attribute Value
Manufacturer	Microchip Technology
Product Category	Microcontrollers
Series	AVR® ATmega
Product	MCU
Packaging	Tray Alternate Packaging
Unit-Weight	0.012720 oz
Mounting-Style	SMD/SMT
Tradename	ATMEGA
Package-Case	64-TQFP
Operating-Temperature	-40°C ~ 85°C (TA)
Supplier-Device-Package	64-TQFP (14x14)
Number-of-I-O	53 I/O
Speed	16MHz
EEPROM-Size	4K x 8
Core-Processor	AVR
RAM-Size	4K x 8
Program Memory	FLASH
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT
Connectivity	EBI/EMI, I2C, SPI, UART/USART
Voltage-Supply-Vcc-Vdd	2.7 V ~ 5.5 V
Core-Size	8-Bit
Program-Memory-Size	128KB (64K x 16)
Data-Converters	A/D 8x10b
Oscillator-Type	Internal
Maximum Operating Temperature	+ 85 C
Operating temperature range	- 40 C
Operating-Supply-Voltage	2.7 V to 5.5 V
Interface-Type	JTAG
Core	AVR
Processor-Series	megaAVR
Data-Bus-Width	8 bit
Package-Case	TQFP-64
Maximum-Clock-Frequency	16 MHz
Number-of-ADC-Channels	8 ADC Channels
Input/output	53 I/O
Data-RAM-Size	4 kB
Data-ROM-Size	4 kB
Number-of-Timers-Counters	4 Timer
ADC-Resolution	10 bit
Data-RAM-Type	SRAM
Data-ROM-Type	EEPROM

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