Microcontrollers

• Fully Static Operation: 0 Hz to 24 MHz
• Two-level Program Memory Lock
• Two 16-bit Timer/Counters
• Six Interrupt Sources
• Programmable Serial UART Channel
• Direct LED Drive Outputs
• On-chip Analog Comparator
• Low-power Idle and Power-down Modes
• 20-pin DIP

• Compatible with MCS-51 Products
• 4K Bytes of In-System Reprogrammable Flash Memory
• Fully Static Operation: 0 Hz to 24 MHz
• Three-level Program Memory Lock
• 128 x 8-bit Internal RAM
• 32 Programmable I/O Lines
• Two 16-bit Timer/Counters
• Six Interrupt Sources
• Programmable Serial Channel
• Low-power Idle and Power-down Modes
• 40-pin DIP

• Compatible with MCS-51 Products
• Two 16-bit Timer/Counters
• Eight Interrupt Sources
• Programmable Serial Channel
• Low-power Idle and Power-down Modes
• 40-pin DIP

• 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
• Up to 6 MIPS Throughput at 16MHz
• Fully Static Operation
• On-chip 2-cycle Multiplier
• Nonvolatile Program and Data Memories
• 16k Bytes of In-System Self-Programmable Flash
• Optional Boot Code Section with Independent Lock Bits
• 512K Bytes EEPROM
• 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 JAGS Interface

• 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
• Up to 6 MIPS Throughput at 16MHz
• Fully Static Operation
• On-chip 2-cycle Multiplier
• Nonvolatile Program and Data Memories
• 32k Bytes of In-System Self-Programmable Flash
• Optional Boot Code Section with Independent Lock Bits
• 1K Bytes EEPROM
• Programming Lock for Software Security

• 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 ATmega328P
• Speed Grades
• 0-16 MHz for ATmega328P
• Power Consumption at 1 Mhz, 1.8V, 25 °C
• Active: 0.6mA
• Power-down Mode: <1µA

• 28-pin AVR Microcontroller
• Flash Program Memory: 8 kbytes
• EEPROM Data Memory: 512 bytes
• SRAM Data Memory: 1 kbytes
• I/O Pins: 23
• Timers: Two 8-bit / One 16-bit
• A/D Converter: 10-bit Six Channel
• PWM: Three Channels
• RTC: Yes with Separate Oscillator
• MSSP: SPI and I²C Master and Slave Support
• USART: Yes
• External Oscillator: up to 8MHz

• A/D Converter: 10-bit Four Channel
• USI: Universal Serial Interface
• Internal Oscillator: 8MHz
• External Oscillator: up to 20MHz

• 80C51 CPU
• 5 V operating voltage from 0 MHz to 40 MHz
• 64 kB of on-chip flash user code memory with ISP and IAP
• Supports 12-clock (default) or 6-clock mode selection via software or ISP
• SPI and enhanced UART
• PCA with PWM and capture/compare functions
• Four 8-bit I/O ports with three high-current port 1 pins (16 mA each)
• Three 16-bit timers/counters
• Programmable watchdog timer

Fetures

• High-Performance RISC CPU:
• Only 33 Single-Word Instructions to Learn
• All Single-Cycle Instructions Except for Program Branches, which are Two-Cycle
• 12-Bit Wide Instructions
• 2-Level Deep Hardware Stack
• Direct, Indirect and Relative Addressing modes for Data and Instructions
• 8-Bit Wide Data Path
• 8 Special Function Hardware Registers
• Operating Speed: