The TMP8255AP-5 is a programmable peripheral interface (PPI) chip manufactured by Toshiba Semiconductor and Storage. It is a versatile input/output (I/O) device that allows microprocessors to communicate with external peripherals. It provides 24 programmable I/O lines that can be configured for various input or output functions. It is functionally equivalent to the Intel 8255A-5.

Applications:

• Interfacing microprocessors with peripheral devices
• Industrial control systems
• Data acquisition systems
• Instrumentation
• Keyboard and display interfaces

Features:

• 24 Programmable I/O Lines: Configurable as inputs or outputs.
• Three 8-bit Ports (A, B, C): Each port can be programmed independently.
• Bit Set/Reset Capability (Port C): Allows individual bits of Port C to be set or reset.
• TTL Compatibility: Interfaces directly with standard TTL logic circuits.
• Single +5V Power Supply: Simplified power supply requirements.
• Mode 0: Basic Input/Output
• Mode 1: Strobed Input/Output
• Mode 2: Bi-directional Bus

Benefits:

• Provides a flexible and versatile interface between microprocessors and peripherals.
• Simplifies the design of I/O systems.
• Reduces the number of components required in a system.
• Enhances the performance of microprocessor-based systems.
• Offers a cost-effective solution for I/O control.

Specifications:

• Number of I/O Lines: 24
• Operating Voltage: +5V
• Operating Temperature Range: 0°C to +70°C
• Package: DIP-40 (Dual In-line Package)

The TMP8255AP-5 is a reliable and widely used PPI chip that offers a flexible and cost-effective solution for interfacing microprocessors with peripheral devices. Its programmable I/O lines and versatile operating modes make it suitable for a wide range of applications. Always refer to the manufacturer's datasheet for the most accurate and up-to-date specifications.