●Description
●The AT90S4433 is a low-power CMOS 8-bit microcontroller based on the AVR RISC architecture. By executing powerful instructions in a single clock cycle, the AT90S4433 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 throughputs up to ten times faster than conventional CISC microcontrollers.
●Features
●• High-performance and Low-power AVR® 8-bit RISC Architecture
● – 118 Powerful Instructions – Most Single Cycle Execution
● – 32 x 8 General Purpose Working Registers
● – Up to 8 MIPS Throughput at 8 MHz
●• Data and Non-volatile Program Memory
● – 4K Bytes of In-System Programmable Flash Endurance 1,000 Write/Erase Cycles
● – 128 Bytes of SRAM
● – 256 Bytes of In-System Programmable EEPROM Endurance: 100,000 Write/Erase Cycles
● – Programming Lock for Flash Program and EEPROM Data Security
●• Peripheral Features
● – One 8-bit Timer/Counter with Separate Prescaler
● – Expanded 16-bit Timer/Counter with Separate Prescaler, Compare, Capture Modes and 8-, 9-, or 10-bit PWM
● – On-chip Analog Comparator
● – Programmable Watchdog Timer with Separate On-chip Oscillator
● – Programmable UART
● – 6-channel, 10-bit ADC
● – Master/Slave SPI Serial Interface
●• Special Microcontroller Features
● – Brown-out Reset Circuit
● – Enhanced Power-on Reset Circuit
● – Low-power Idle and Power-down Modes
●• Power Consumption at 4 MHz, 3V, 25°C
● – Active: 3.4 mA
● – Idle Mode: 1.4 mA
● – Power-down Mode: <1 µA
●• I/O and Packages
● – 20 Programmable I/O Lines
● – 28-lead PDIP and 32-lead TQFP
●• Operating Voltage
● – 2.7V - 6.0V for the AT90LS4433
● – 4.0V - 6.0V for the AT90S4433
●• Speed Grades
● – 0 - 4 MHz for the AT90LS4433
● – 0 - 8 MHz for the AT90S4433
Part 3D Model
