The document introduces a high-performance and low-power AVR 8-bit RISC architecture product. It features 118 powerful instructions, most of which can be executed in a single cycle. It has 32 general-purpose working registers and can achieve up to 8 MIPS throughput at a clock frequency of 8 MHz. The product also includes 2K/4K bytes of in-system programmable flash, 128 bytes of SRAM, and 128/256 bytes of in-system programmable EEPROM. It also includes a 8-bit timer/counter, an expanded 16-bit timer/counter, an on-chip analog comparator, a programmable watchdog timer, and a programmable UART.
This document provides a preliminary overview of the AT90S2333/4433 and AT90LS2333/4433 microcontrollers, which are based on the AVR RISC architecture. These devices offer high-performance execution with up to 8 MIPS throughput at 8 MHz for the 'S' series and 4 MHz for the 'LS' series, utilizing a rich instruction set and 32 general-purpose working registers.
| Architecture | AVR 8-bit RISC Architecture |
|---|---|
| Flash Memory (S Series) | 2K/4K Bytes |
| EEPROM (LS Series) | 128/256 Bytes |
| SRAM Size | 128 Bytes |
| Operating Voltage (LS Series) | 2.7V - 6.0V |
| Operating Voltage (S Series) | 4.0V - 6.0V |
| Max Frequency (LS Series) | 0-4 MHz |
| Max Frequency (S Series) | 0-8 MHz |
The maximum speed grade for the AT90LS2333 and AT90LS4433 models is 0-4 MHz.
The devices are available in 28-pin PDIP and 32-pin TQFP packages.
No, this is a summary document; for the complete 103 page document, users must visit www.atmel.com or request literature #1042D.