2.3.1 VCC Digital supply voltage.
2.3.2 GND Ground.
2.3.3 Port A (PA7:PA0) Port A serves as analog inputs to the Analog-to-digital Converter.
Port A also serves as an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit).
The Port A output buffers have symmetrica
ATMEGA164P Features
* High-performance, Low-power Atmel® AVR® 8-bit Microcontroller
* Advanced RISC Architecture ̶ 131 Powerful Instructions
* Most Single-clock Cycle Execution ̶ 32 × 8 General Purpose Working Registers ̶ Fully Static Operation ̶ Up to 20 MIPS Throughput at 20 MHz ̶ On-chip 2-cycle Mult
ATMEGA644P_ATMELCorporation.pdf
Datasheet Details
ATMEGA164P, ATMEGA644P
ATMEL Corporation
5.66 MB
8-bit microcontroller.
This datasheet PDF includes multiple part numbers: ATMEGA164P, ATMEGA644P.
Please refer to the document for exact specifications by model.
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