ATMEGA168PA-AN

ATMEGA168PA-AN is an 8‑bit AVR microcontroller from Atmel/Microchip, part of the ATmega family. It uses the AVR RISC architecture and executes most instructions in a single clock. Key memory: 16 KB Flash (program), 1 KB EEPROM, 1 KB SRAM. Peripherals include a 10‑bit ADC (multiple channels), USART, SPI, I2C (TWI), and three timers (8/16‑bit) with PWM capability on several pins. It provides several general‑purpose I/O lines and industry‑standard features such as analog comparator, watchdog timer, and multiple interrupts. Electrical: operate from about 1.8 to 5.5 V; clock speeds up to 20 MHz (depending on voltage). Package options for this device vary (for example DIP28 or 32‑pin TQFP); the “-AN” suffix denotes a specific package/variant in the catalog. Development is supported by the AVR toolchain (AVR-GCC, Atmel Studio) and in‑system programming via SPI. Common uses include embedded controllers, hobby electronics, and Arduino‑based projects (older boards used this family).

ATMEGA168PA-AN is an AVR 8‑bit microcontroller (Automotive grade variant) with the following core features:
- 8-bit AVR RISC CPU, single-cycle execution, up to 20–MHz operation
- Memory: 16 KB Flash, 1 KB SRAM, 512 B EEPROM
- I/O: up to 22 general-purpose I/O pins
- Peripherals: 8-channel 10-bit ADC, Analog Comparator
- Timers/Counters: 2× 8-bit Timers + 1× 16-bit Timer
- Communication: USART, SPI, I2C (TWI)
- PWM outputs and standard AVR peripherals for timing and control
- Power and safety: Brown-out Detector, Power-on Reset, Watchdog Timer, multiple sleep modes
- In-System Programming (SPI) with optional bootloader support
- Package options: 28-pin DIP, SOIC, and TQFP variants
- Operating range: 1.8–5.5 V; Automotive-grade temperature range: typically -40°C to 125°C (AN variant)
Note: “AN” indicates automotive/extended-temperature grading.

- Pin count: 28-pin package (e.g., PDIP-28, SOIC-28, TQFP-28).
- Function: 8-bit AVR microcontroller with 16 KB flash, 1 KB SRAM, 512 B EEPROM; runs up to 20 MHz. Peripherals include 1 USART, 1 SPI, 1 I2C (TWI), three timers (2×8-bit, 1×16-bit), 8-channel 10-bit ADC, PWM outputs, up to ~23 I/O pins, analog comparator, watchdog, and power-saving sleep modes.

- Manufacturer: Microchip Technology Inc. (the AVR line, including ATmega168, originated with Atmel; Microchip acquired Atmel in 2016).
- What kind of company: a global American semiconductor company that designs and manufactures microcontrollers, memory, analog, and interface products, providing embedded control solutions.

Common application areas for ATMEGA168PA-AN:
- Automotive instrumentation and control modules (dash displays, sensor interfaces)
- Consumer electronics and gadgets (remote controls, small embedded devices, displays)
- Industrial automation and data acquisition (sensor conditioning, logging)
- Home automation and IoT controllers (gateways, smart switches)
- Robotics, hobbyist projects, education (Arduino-like projects, motor control, sensing)
- PWM-based motor control and LED lighting drivers (dc motors, stepper/LED dimming)

28-pin SOIC (surface-mount) package.