ATMEGA16A-PU Microcontroller

The ATmega16 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega16 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed. The AVR core combines a rich instruction set with 32 general purpose working registers. All the 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one single instruction executed in one clock cycle. The resulting architecture is more code efficient while achieving through puts up to ten times faster than conventional CISC microcontrollers.

Features of ATMEL ATMEGA16A-PU Microcontroller:

High-performance, Low-power AVR 8-bit Microcontroller
Advanced RISC Architecture
131 Powerful Instructions
Most Single-clock Cycle Execution
32 x 8 General Purpose Working Registers
Fully Static Operation ? Up to 16 MIPS Throughput at 16 MHz
On-chip 2-cycle Multiplier ? Nonvolatile Program and Data Memories
16K Bytes of In-System Self-Programmable Flash Endurance: 10,000 Write/Erase Cycles
Optional Boot Code Section with Independent Lock Bits In-System Programming by On-chip Boot Program True Read-While-Write Operation
512 Bytes EEPROM Endurance: 100,000 Write/Erase Cycles
1K Byte Internal SRAM
Programming Lock for Software Security
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
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 8 Single-ended Channels 7 Differential Channels in TQFP Package Only 2 Differential Channels with Programmable Gain at 1x, 10x, or 200x
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, 44-lead TQFP, and 44-pad MLF
Operating Voltages
2.7 – 5.5V for ATmega16L
4.5 – 5.5V for ATmega16
Speed Grades
0 – 8 MHz for ATmega16L
0 – 16 MHz for ATmega16