CS82C82

Latches Overview

The CS82C82 is an octal latching bus driver manufactured by Harris Corporation using a self-aligned silicon gate CMOS process. It provides an eight-bit parallel latch and buffer in a 20-pin package. The device features three-state noninverting outputs and gated inputs that reduce operating power and eliminate the need for pull-up resistors. It operates on a single 5V power supply with low power consumption, specified as ICCSB = 10µA. The component supports bidirectional data transfer with common control and has a maximum propagation delay of 35ns.

Latches Feature Summary

• Octal latching buffer with transparent data transfer and negative-edge latching capability
• Gated inputs designed to reduce operating power and remove requirement for external pull-up resistors
• Three-state noninverting outputs allowing simple interface to microprocessor systems

Latches Applications

• Microprocessor system interfacing
• Parallel data buffering and latching
• Bidirectional bus driving applications

Latches Procurement Notes

Verify the specific package variant, as the CS82C82 designation typically corresponds to the PQCC20 (PLCC) form factor. Confirm compatibility with Bipolar 8282 requirements if replacing legacy components. Ensure the selected unit meets the commercial temperature range of 0°C to +70°C. Check for RoHS compliance status, as original Harris CMOS logic often lacks modern environmental certifications. Validate pinout alignment with standard 20-pin PLCC footprints during integration.

Latches Selection Notes

Select the CS82C82 when an octal latching function is required for bidirectional data paths. It serves as a CMOS alternative to the Bipolar 8282, offering lower power consumption while maintaining compatible functionality. Choose this part for systems requiring gated inputs to simplify circuit design by removing pull-up resistors. Ensure the application environment stays within the 0°C to +70°C operating temperature range. Verify that the 35ns maximum propagation delay meets the timing constraints of the target microprocessor bus.

Latches Part Context

The CS82C82 belongs to the Harris Intersil 82C82 family of high-performance CMOS octal latching buffers. This series includes variants such as the IR82C82 for industrial temperature ranges and the M82C82 for military specifications. The component is part of Harris's broader portfolio of CMOS logic devices designed to replace older bipolar technologies with lower power solutions. It is widely recognized for its compatibility with standard microprocessor architectures and its ability to handle parallel data latching tasks efficiently.