Z8523008PEC

Specialized Overview

The Z8523008PEC is a dual-channel Serial Communication Controller (SCC) from the Z85230 family, designed for high-performance serial data transmission. It features two full-duplex channels capable of processing speeds up to 5 Mbps. The device supports multiple communication protocols including asynchronous, bisync, and SDLC/HDLC formats. It incorporates on-chip FIFO buffers consisting of a 4-byte transmit buffer and an 8-byte receive buffer per channel. The component operates within a temperature range of -40°C to +100°C and utilizes a 40-pin DIP package.

Specialized Feature Summary

• Dual full-duplex serial channels with integrated FIFO buffers
• Support for multi-protocol formats including async, bisync, and SDLC/HDLC
• Integrated baud rate generation and digital phase-locked loop capabilities
• Hardware error detection using CRC-16 or CRC-CCITT algorithms

Specialized Applications

• High-speed serial data communication interfaces
• Network terminal equipment requiring protocol conversion
• Industrial control systems utilizing SDLC/HDLC standards
• Embedded systems needing reliable asynchronous data transfer

Specialized Procurement Notes

Verify the specific suffix 'PEC' confirms the 40-pin DIP package and industrial temperature range (-40°C to +100°C). Confirm RoHS compliance status as older Zilog components may vary. Ensure the design accommodates the required clock frequencies for the 5 Mbps operation mode. Check for moisture sensitivity levels if surface mount alternatives are considered later.

Specialized Selection Notes

Select this model when dual independent serial channels are required with HDLC support. Compare against the Z85C30 series if lower speed or single-channel needs exist. Consider the Z8523008PSC variant if a plastic SOIC package is preferred over the ceramic DIP form factor. Verify voltage requirements match the system logic levels before integration.

Specialized Part Context

This component belongs to the Z85230 enhanced SCC family, which improves upon earlier Z80/Z85C30 designs by reducing CPU overhead through advanced packet handling. It serves as a bridge between parallel microprocessor buses and serial communication lines. The part is widely used in legacy networking hardware and specialized industrial controllers where robust protocol handling is essential.

Specialized Replacement Considerations

The Z8523008PSC offers identical functionality in a different package type. The Z8523008VEC provides the same electrical performance in a PLCC housing. Direct pin-compatible replacements within the same manufacturer line include other Z85230 variants with differing clock speeds or package styles.