Z8523016VSC

Specialized Overview

The Z8523016VSC is a CMOS Serial Communication Controller (SCC) from the Zilog enhanced dual SCC family. It features two full-duplex serial channels and supports processing speeds up to 5 Mbps. The device operates within a voltage range of 4.5V to 5.5V and utilizes a 44-pin PLCC package with J-bend terminals. It accommodates a crystal oscillator, baud rate generator, and digital phase-locked loop on each channel. The component is designed for commercial temperature ranges.

Specialized Feature Summary

• Dual full-duplex serial communication channels
• Supports multi-protocol formats including async, monosync, bisync, SDLC/HDLC, and SDLC/HDLC loop
• Integrated FIFO buffers consisting of 4-byte transmit and 8-byte receive depths
• Hardware error detection capabilities using CRC-16 or CRC-CCITT

Specialized Applications

• Networking applications requiring high-performance serial data transmission
• Systems utilizing asynchronous or synchronous HDLC protocols
• Embedded controllers needing reduced CPU overhead for packet handling

Specialized Procurement Notes

Verify the specific suffix VSC confirms the plastic PLCC-44 package and commercial operating temperature range. Confirm RoHS compliance status as older Zilog components may not meet current environmental standards. Check for end-of-life status before finalizing design-in decisions.

Specialized Selection Notes

Select this part when dual-channel performance up to 5 Mbps is required without multiplexing. Compare against the Z85C30 series if lower speeds are sufficient, or the Z80230 series if non-CMOS technology is preferred. Ensure the system voltage aligns with the 4.5V to 5.5V specification.

Specialized Part Context

This component belongs to the Z85230 enhanced dual SCC family, which improves upon the standard Z85C30 by reducing CPU overhead and offering larger FIFO buffers. It shares the core architecture with other members like the Z8523010VSC but offers higher clock speed capabilities.

Specialized Replacement Considerations

Direct replacements include Z8523010VSC for lower speed requirements or Z8523020VSC for higher throughput needs within the same package. Cross-family alternatives like the Z16C35 offer DMA support but differ in interface complexity.