ATmega16 Microcontroller : Pin Diagram, Features, and Its Applications
Microchip PIC16F877A-I/P Microcontroller, 8-Bit PIC, 16 RISC, 14.3KB Flash, 5V, 40 Pin, Plastic Dip Tube, 3.81 mm H x 52.26 mm L x 13.84 mm W: Electronic Controllers: Amazon.com: Industrial & Scientific
Pin Description of 8051 Microcontroller
MCP23017 - i2c 16 input/output port expander : ID 732 : $6.95 : Adafruit Industries, Unique & fun DIY electronics and kits
16F88 PIC Experimenter's Board
Pin and port in microcontroller - Electrical Engineering Stack Exchange
Microchip PIC16F84A-20/P Microcontroller, 8-Bit, PIC-16 RISC, 1.75KB Flash, 5V, 18-Pin Plastic Dip Tube, 6.35 mm W x 3.3 mm H x 22.86 mm L (Pack of 2): Amazon.com: Industrial & Scientific