Z16M1720ASG1868

Specialized Overview

The Z16M1720ASG1868 is an 8-bit microcontroller from the Zilog Z16 family, featuring a Z8-compatible CPU core. It integrates 20KB of Mask ROM (MROM) for program storage and 512 bytes of RAM. The device operates at a maximum clock frequency of 18.68 MHz and supports up to 34 general-purpose I/O lines. It includes multiple timer/counters, serial communication interfaces such as SPI and UART, and an 8-channel 10-bit ADC. The component is housed in a 44-pin TQFP package and is designed for embedded control applications requiring moderate processing power and peripheral integration.

Specialized Feature Summary

• Z8-compatible 8-bit CPU architecture with high-speed operation
• Integrated 20KB MROM and 512-byte RAM for code and data storage
• Rich peripheral set including timers, serial interfaces, and analog-to-digital conversion
• Flexible I/O configuration supporting up to 34 programmable pins

Specialized Applications

• Industrial motor control systems
• Consumer appliance logic controllers
• Portable battery-powered devices
• Automotive body electronics modules

Specialized Procurement Notes

Verify the specific suffix 'SG1868' against official Zilog documentation to confirm pinout compatibility and voltage range. Ensure the MROM content matches the target application firmware requirements, as mask ROM cannot be reprogrammed after fabrication. Confirm RoHS compliance status through the manufacturer's current datasheet revision.

Specialized Selection Notes

Select this part when a Z8-compatible instruction set is required alongside integrated analog input capabilities. Compare execution speed and peripheral count against alternative Z16 variants if higher memory or different package options are needed. Validate that the 18.68 MHz operating frequency aligns with system timing constraints and power supply stability.

Specialized Part Context

This component belongs to the Zilog Z16 series of 8-bit microcontrollers, which extend the legacy Z8 architecture with enhanced performance and peripheral integration. The Z16 family targets cost-sensitive embedded markets, offering a balance between processing capability and low power consumption. The Z16M1720 variant specifically provides substantial on-chip memory for complex control algorithms without external expansion.

Specialized Replacement Considerations

Direct replacements within the Z16 family include parts with similar MROM sizes and I/O counts, such as the Z16M1710 or Z16M1730 series, depending on memory requirements. Cross-family migration to newer Z8 or Z16 derivatives may require software adaptation due to potential peripheral register differences.