TN82C54-2

Overview

The TN82C54-2 is a programmable interval timer manufactured by Rochester Electronics, LLC. It utilizes advanced CHMOS III technology and features three independent 16-bit counters. The device supports six programmable modes for flexible timing operations. It operates with an 8 MHz maximum clock frequency and an 8-bit parallel data bus. The unit functions within a supply voltage range of 4.5 V to 5.5 V. It is housed in a 24-pin DIP package and supports an industrial temperature range from -40 °C to +85 °C.

Feature Summary

• Three independently programmable 16-bit counters
• Six programmable timer modes
• Advanced CHMOS III technology implementation

Applications

• Programmable interval timing circuits
• Microprocessor peripheral interfaces
• System clock generation

Procurement Notes

Verify the specific manufacturer origin and lot traceability upon acquisition. Confirm that the component meets the required environmental specifications for the intended operating temperature range. Ensure the package integrity matches the specified 24-pin DIP form factor before integration into the design.

Selection Notes

Select this component when a CMOS-based programmable timer with multiple counting modes is required. It serves as a suitable alternative for designs needing compatibility with standard microprocessor buses. Consider the 8 MHz speed limit and 5 V operation constraints during system architecture planning.

Part Context

This part belongs to the 82C54 family of programmable interval timers. It provides a high-performance CMOS solution compared to older NMOS versions. The device maintains functional compatibility with industry-standard interfaces while offering improved power efficiency and speed characteristics typical of CHMOS technology implementations.