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Among the first of the AVR line was the AT90S8515, which in a 40-pin DIP package has the same pinout as an 8051 microcontroller, including the external multiplexed address and data bus. The polarity of the RESET line was opposite (8051's having an active-high RESET, while the AVR has an active-low RESET ), but other than that the pinout was ...
ATtiny (also known as TinyAVR) is a subfamily of the popular 8-bit AVR microcontrollers, which typically has fewer features, fewer I/O pins, and less memory than other AVR series chips. The first members of this family were released in 1999 by Atmel (later acquired by Microchip Technology in 2016).
8-bit AVR 8-bit AVR Performance: 20 MIPS at 20 MHz [3] 20 MIPS at 20 MHz [3] Flash memory: 8 KB 16 KB SRAM: 1 KB 1 KB EEPROM: 512 B 512 B Pin count: 28 or 32 pin: 28 or 32 pin: Maximum operating frequency: 20 MHz 20 MHz Hardware QTouch Acquisition: No 20 MHz Maximum I/O pins: 23 23 External interrupts: 2 2 USB Interface: No No USB Speed – –
However, there is room for confusion. The PIC data sheets show an inverted socket and do not provide a pictorial view of pinouts so it is unclear what side of the socket Pin 1 is located on. The illustration provided here is untested but uses the phone industry standard pinout (the RJ11 plug/socket was original developed for wired desktop phones).
S Sign flag. Unique to AVR, this is always N⊕V, and shows the true sign of a comparison. H Half-carry flag. This is an internal carry from additions and is used to support BCD arithmetic. T Bit copy. Special bit load and bit store instructions use this bit. I Interrupt flag. Set when interrupts are enabled.
ARM7, ARM Cortex-M, ARM Cortex-A (on Jailhouse hypervisor), Hitachi H8, Altera Nios2, Microchip dsPIC (including dsPIC30, dsPIC33, and PIC24), Microchip PIC32, ST Microelectronics ST10, Infineon C167, Infineon Tricore, Freescale PPC e200 (MPC 56xx) (including PPC e200 z0, z6, z7), Freescale S12XS, EnSilica eSi-RISC, AVR, Lattice Mico32, MSP430 ...
Elektor Platino [82] universal AVR board Elektor ATmega8, ATmega16, ATmega32, ATmega88, ATmega164, ATmega168, ATmega324, ATmega328, ATmega644, ATmega1284 Platino is an Arduino compatible board that supports 28-pin and 40-pin AVR devices. The board features multiple footprints for user interface elements like LCDs, pushbuttons, rotary encoders ...
ATmega328 is commonly used in many projects and autonomous systems where a simple, low-powered, low-cost micro-controller is needed. Perhaps the most common implementation of this chip is on the popular Arduino development platform, namely the Arduino Uno, Arduino Pro Mini [4] and Arduino Nano models.