Z8927320VSG

Overview

The Z8927320VSG is a 16-bit Digital Signal Processor (DSP) from the Z893x3 family, featuring an 8 KWord One-Time Programmable (OTP) memory array and 512 Words of data RAM. Operating at a maximum clock frequency of 20 MHz with a 5V supply, it utilizes a modified Harvard architecture with separate program and dual data memory banks. The device integrates a 4-channel, 8-bit half-flash A/D converter, SPI interface, three counter/timers with PWM support, and up to 40 bits of configurable I/O. It is housed in a 44-pin PLCC package and supports standard temperature operation from 0°C to +70°C.

Feature Summary

• 16-bit fixed-point DSP core with 24-bit ALU and single-cycle multiply operations
• 8 KWords OTP program memory and 512 Words data RAM
• Integrated 4-channel, 8-bit A/D converter with analog reference inputs
• On-chip peripherals including SPI, three Counter/Timers (two PWM), and WDT

Applications

• Compression and filtering algorithms
• Frequency detection systems
• Audio processing and voice detection
• Speech synthesis applications

Procurement Notes

Verify the specific ordering suffix 'VSG' against the manufacturer's current documentation to confirm pin compatibility and package type. Confirm that the OTP version meets the required firmware programming constraints for the target application. Check for RoHS compliance status as indicated in the latest datasheet revisions.

Selection Notes

Select this component when a compact solution requiring integrated signal acquisition and processing is needed. The 44-pin PLCC package limits available I/O compared to larger packages but suffices for basic control loops. Ensure the 5V operating voltage aligns with the system power rails and that the 20 MHz performance meets real-time processing requirements.

Part Context

This part belongs to the Z893x3 family of 16-bit DSPs with A/D converters. It shares the core architecture with ROM-based variants like the Z89373 and lower-memory models like the Z89223. The '273' designation specifically indicates the 8 KWord OTP configuration, distinguishing it from mask ROM or higher-capacity versions within the same series.

Replacement Considerations

Direct replacements include other members of the Z893x3 family such as the Z89373 (ROM version) or Z89273 (different package). Verify pinout compatibility, particularly for the 44-pin PLCC variant, before substituting. Cross-check electrical characteristics and peripheral availability to ensure functional equivalence.