Z8523316VSG

Specialized Overview

The Z8523316VSG is a single-channel Enhanced Mono Serial Communication Controller (EMSCC) manufactured by Zilog. It operates within a supply voltage range of +4.50 V to +5.50 V and supports clock frequencies up to 16 MHz. The device integrates an 8-byte receive FIFO and a 4-byte transmit FIFO to reduce CPU overhead. It utilizes Superintegration technology for software compatibility with the SCC family. The component is housed in a 44-pin PLCC package and functions as a full-duplex data communications controller.

Specialized Feature Summary

• Integrates dedicated transmit and receive FIFOs to minimize processor intervention during data transfers.
• Features automatic SDLC packet handling capabilities, including flag transmission and frame reset logic.
• Supports software generation of interrupt acknowledge signals to simplify system bus interfacing.

Specialized Applications

• Full-duplex serial data communication systems
• SDLC protocol implementation
• Microprocessor-based peripheral interfaces

Specialized Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm pinout and package configuration. Confirm that the required operating temperature range aligns with the intended application environment. Ensure the design accommodates the specified power supply voltage tolerances and signal timing requirements.

Specialized Selection Notes

Select this component when a single-channel serial interface is sufficient for the system architecture. The integrated FIFOs make it suitable for applications requiring reduced CPU load compared to standard SCC devices. Verify that the host microprocessor can support the required PCLK frequencies and interrupt acknowledge protocols defined in the AC characteristics.

Specialized Part Context

This part belongs to the Z85230 ESCC family but is configured as a mono-channel variant containing only Channel A. It serves as a specialized interface controller designed to replace older SCC designs while maintaining backward compatibility with existing software drivers and hardware architectures.

Specialized Replacement Considerations

The Z85230 series represents the dual-channel counterpart to this component. Designers should verify if the additional channel on the Z85230 is necessary or if the mono-channel configuration of the Z85233 provides adequate resource utilization for the target application.

Specialized FAQ

What are the FIFO depths for the Z85233?

The device includes an 8-byte receive FIFO and a 4-byte transmit FIFO.

How does the Z85233 handle interrupts?

It supports the software generation of the interrupt acknowledge signal (/INTACK) to simplify hardware interfacing.

Is the Z85233 compatible with standard SCC software?

Yes, it is a software-compatible CMOS member of the SCC family introduced by Zilog.