The TN82C55A-2 is a programmable peripheral interface (PPI) chip manufactured by Rochester Electronics. It is a versatile I/O expander that allows microprocessors and microcontrollers to interface with a wide range of peripheral devices. The part is a re-manufactured component by Rochester Electronics.

Applications

• Industrial control systems
• Data acquisition systems
• Instrumentation
• Robotics
• Computer peripherals

Features

• Three 8-bit I/O ports (Port A, Port B, Port C)
• Programmable I/O modes (Mode 0, Mode 1, Mode 2)
• Bit set/reset capability for Port C
• TTL compatible inputs and outputs
• Re-manufactured by Rochester Electronics

Benefits

• Provides a flexible and cost-effective way to expand the I/O capabilities of a microprocessor or microcontroller
• Simplified interface to a wide range of peripheral devices
• Reduces board space and cost compared to using discrete I/O components
• Guaranteed availability through Rochester Electronics
• Ensured performance to original specifications through Rochester Electronics re-manufacturing process

Additional Details

The TN82C55A-2 operates at a voltage of 5V. The programmable I/O modes allow the ports to be configured as inputs, outputs, or bidirectional ports. The bit set/reset capability for Port C allows individual bits to be controlled without affecting other bits. The device is typically interfaced to a microprocessor or microcontroller using an 8-bit data bus and control signals. Rochester Electronics ensures the device is compliant with lead-free standards.