Z8018233FSC

Overview

The Z8018233FSC is a microprocessor from the Zilog Z80182 family, featuring a Z8S180 core with an 8-bit data bus and a maximum clock frequency of 33 MHz. It operates on a 5 V supply voltage within a commercial temperature range of 0°C to +70°C. The device integrates 64 kB of SRAM and provides 24 I/O lines across three parallel ports. Key peripherals include two UART channels, two 16-bit timer counters, and a 16550 MIMIC interface for PC connectivity. It is housed in a 100-pin QFP package.

Feature Summary

• Integrates a fully static Z8S180 MPU core with extended instructions and DMA channels.
• Includes two ESCC channels with 32-bit CRC capabilities for enhanced serial communication.
• Features a 16550 compatible MIMIC interface enabling direct connection to IBM PC, XT, and AT buses.
• Provides three 8-bit parallel I/O ports and two 16-bit timer counters.

Applications

• Modem applications, particularly V. Fast implementations
• Fax machines and voice messaging systems
• General communications equipment requiring PC bus compatibility

Procurement Notes

Verify component authenticity as this part is End-of-Life (EOL). Confirm RoHS compliance status through official documentation, as datasheets indicate potential non-compliance for specific variants. Check for moisture sensitivity handling requirements prior to assembly. Validate pinout compatibility with existing PCB layouts due to the 100-pin QFP package.

Selection Notes

Select this component when legacy Z80 code compatibility is required alongside integrated smart peripheral functions. It is suitable for designs needing direct PC bus interfacing without external bridge chips. Consider the 33 MHz operating speed and 64 kB internal RAM for memory-constrained embedded control tasks. Ensure the application environment supports the specified commercial temperature range.

Part Context

This device belongs to the Z80182/Z8L182 Intelligent Peripheral Controller series by Zilog. It combines a Z180-compatible CPU with ESCC and parallel I/O peripherals. The Z8018233FSC specifically denotes the 33 MHz variant in a 100-pin QFP package. It serves as a bridge between standard microprocessor architectures and legacy PC bus standards.

Replacement Considerations

Z8018233ASG: Same family member with identical core and peripheral specifications but potentially different packaging or suffix variations. Verify electrical characteristics and pinout compatibility before substitution.