Z8523310VSC00TR

Specialized Overview

The Z85233 is a single-channel Enhanced Mono Serial Communication Controller (EMSCC) from Zilog, serving as the Channel A variant of the Z85230 ESCC. It operates at clock frequencies up to 16 MHz with a supply voltage range of 4.5V to 5.5V. The device features a 4-byte transmit FIFO and an 8-byte receive FIFO to reduce CPU overhead. It supports protocols including SDLC, HDLC, and X.25, utilizing Superintegration technology for simplified system design.

Specialized Feature Summary

• Integrated 4-byte transmit and 8-byte receive FIFOs for improved data handling
• Automatic packet handling enhancements in SDLC mode
• Simplified CPU hardware interface with software-generated interrupt acknowledge
• Faster response times for /INT and /DTR//REQ pins

Specialized Applications

• Full-duplex data communications controller applications
• SDLC protocol implementation systems
• Microprocessor families requiring reduced external logic interfaces

Specialized Procurement Notes

Verify the specific suffix VSC00TR against the manufacturer's current ordering specification DC 4058-03 to confirm package type and temperature grade. Ensure compatibility with existing SCC/ESCC designs before procurement. Check for any product change notifications or obsolescence notices relevant to this component series.

Specialized Selection Notes

Select the Z85233 when a single-channel serial communication solution is required instead of the dual-channel Z85230. Consider the 16 MHz maximum operating frequency and 5V supply requirements. Evaluate the need for FIFO buffering and SDLC automatic flag transmission features compared to standard SCC devices.

Specialized Part Context

The Z85233 belongs to the Zilog SCC family introduced in 1981. It is the enhanced mono version of the Z85230 ESCC. The device utilizes CMOS technology and is designed to be software compatible with earlier SCC members while offering performance improvements through deeper FIFOs and simplified control logic.

Specialized Replacement Considerations

The Z85230 ESCC serves as the dual-channel counterpart. Standard Z85230 SCC devices lack the enhanced FIFOs and SDLC features. Verify pinout compatibility between PLCC and PQFP packages if substituting different package variants within the same functional family.