The high-performance, low-power Atmel 8-bit AVR RISC-based microcontroller combines 8KB of programmable flash memory, 544B internal memory, up to 64KB external SRAM, and 512B EEPROM. The device supports a throughput of 16 MIPS at 16MHz and operates between 2.7-5.5 volts.
By executing instructions in a single clock cycle, the device achieves throughputs approaching 1 MIPS per MHz, balancing power consumption and processing speed.
Feature
Advanced RISC architecture
Power-on reset and programmable brown-out detection
Internal calibrated RC oscillator
External and internal interrupt sources
Three Sleep modes - Idle, power-down and standby
130 Powerful instructions-most single clock cycle execution
32 x 8 General purpose working registers
Fully static operation
Up to 16MIPS throughput at 16MHz
On-chip 2-cycle multiplier
One 8-bit timer/counter with separate prescaler and compare mode
One 16-bit timer/counter with separate prescaler, compare mode and capture mode
Three PWM channels
Programmable serial USART
Master/Slave SPI serial interface
Programmable watchdog timer with separate on-chip oscillator
On-chip analog comparator
The ATMEGA8515L-8PU is an 8-bit microcontroller unit (MCU) manufactured by Microchip Technology. It features 8KB of programmable Flash memory, 512B of SRAM, and can support up to 64KB of external SRAM along with 512B of EEPROM. With a maximum CPU frequency of 8MHz, it operates within a supply voltage range of 2.7V - 5.5V. Housed in a PDIP-40 package, it has 35 I/O pins and offers features like 2 timers, 3 PWM channels, 1 SPI interface, and 1 USART. It's suitable for various applications where a balance of processing power and low power consumption is required.
Benefits
High-performance, low-power 8-bit AVR® RISC-based architecture
8KB of programmable Flash memory for program storage
512B of SRAM for data storage during operation
Supports up to 64KB of external SRAM for extended data storage
512B of EEPROM for non-volatile data storage
Up to 16 MIPS throughput at 16 MHz, with single-clock-cycle instruction execution
Wide supply voltage range from 2.7V to 5.5V
Multiple peripheral interfaces like SPI and USART
2 timers and 3 PWM channels for various control applications
Industrial temperature range from -40°C to 85°C
Pinout
The ATMEGA8515L-8PU has a 40-pin PDIP package. Here are some of the key pins:
VCC: Power supply input, operates in the range of 2.7V - 5.5V.
GND: Ground connection for the device.
PA0 - PA7: General-purpose I/O pins, part of Port A.
PB0 - PB7: General-purpose I/O pins, part of Port B, also used for SPI functions.
PC0 - PC7: General-purpose I/O pins, part of Port C.
PD0 - PD7: General-purpose I/O pins, part of Port D, some used for USART functions.
XTAL1, XTAL2: Pins for connecting the crystal oscillator for clock generation.
RESET: Reset pin to initialize the microcontroller.
Application Examples
Industrial control systems
Home automation devices
Consumer electronics with basic control functions
Simple sensor data acquisition systems
Catalogue
FPGA / CPLD
Memory
MOS 
MCU 
DSP
OCEP
Secondary 
Other 
