ATMEGA8535L-8MI

The ATmega8535L-8MI is an 8‑bit AVR microcontroller from Atmel (now Microchip) in the megaAVR family. It uses the AVR RISC core with Harvard architecture (32 GPRs, most instructions execute in one cycle).
Key specs (typical):
- Memory: 8 KB flash program memory; 512 B SRAM; 512 B EEPROM.
- Peripherals: 3 timers/counters with PWM, USART, SPI, TWI/I2C, 8‑channel 10‑bit ADC, analog comparator.
- I/O: up to ~32 general-purpose I/O pins.
- Clock/Power: up to 8 MHz operation; supply 2.7–5.5 V.
- Package: 40‑pin package (PDIP, and other variants).
- Power/Sleep: multiple power‑saving modes.
- Programming: in‑system programmable via SPI; supported by standard AVR toolchains (avrdude/avr-gcc, Atmel Studio).
Applications: small embedded controllers, sensors, displays, motor control, data logging.

Direct equivalents are other ATmega8535L family parts with the same 8 MHz speed and 40-pin packages:
- ATmega8535L-8MU (SOIC-40)
- ATmega8535L-8PI (PDIP-40)
- ATmega8535L-8TQFP (TQFP-40)
All share 8K flash, 512 B RAM, and AVR peripherals. For a cross-family option, ATmega8515 offers similar memory in a different package, though peripherals differ. Check the datasheet/curchase cross-reference for exact packaging.

ATmega8535L-8MI features (concise):
- 8-bit AVR RISC CPU, single-cycle per instruction, up to ~1 MIPS at 8 MHz.
- Memory: 8 KB Flash program memory with In-System Programming (ISP); 512 bytes RAM; 512 bytes EEPROM.
- I/O: up to about 32 general-purpose I/O pins.
- Timers: Timer/Counter0 (8-bit) with PWM; Timer/Counter1 (16-bit) with PWM; watchdog timer.
- ADC: 8-channel, 10-bit ADC with multiplexer.
- Communications: USART (serial), SPI, Two-Wire Interface (I2C).
- Analog: Analog comparator and multiplexed analog inputs.
- Interrupts: External interrupts and pin-change interrupts.
- Power/ sleep: Operating voltage 2.7–5.5 V; up to 8 MHz; sleep modes (Idle, Power-down, Standby); Brown-out detection.
- In-system programming: via SPI.
- Packages: 40-pin package variants (MI suffix indicates specific package type).
Note: values reflect typical 8535L specs; refer to the datasheet for exact packaging and per-pin features.

- Pin count: 40 pins (40-pin package)
- Function: An 8‑bit AVR microcontroller (megaAVR family) used for generic embedded control. It includes on-chip flash memory, RAM, and EEPROM with peripherals such as ADC, timers, UART, SPI, and I2C/TWI for surrounding device control and communication.

- Manufacturer: Atmel Corporation, now part of Microchip Technology.
- What kind of company: A semiconductor company that designs and manufactures microcontrollers (notably AVR) and memory/other ICs for embedded systems; Microchip is a multinational provider of microcontrollers, analog, memory, and related components.

ATmega8535L-8MI is a cost‑effective 8‑bit AVR MCU suitable for simple embedded control. It offers 8K flash, 512B RAM, 32 I/O lines, 8‑channel 10‑bit ADC, timers, USART/SPI/I2C, and interrupts.
Common application areas:
- Consumer electronics and appliances (remote controls, meters, displays)
- Industrial sensing, data acquisition and small control systems
- Automotive interfaces and noncritical control
- Robotics and automation (motor drive, position sensing, logic tasks)
- Building/home automation and smart devices
- Education, prototyping and DIY projects

40-pin PDIP (DIP) package. It’s also offered in a 40-pin TQFP option; the -MI suffix denotes the Industrial-temperature/alternate package variant.