Z0220516SSCR4259

Overview

The Z02205 is a V.22bis modem controller designed for embedded applications requiring low power consumption and small size. It features an on-chip ROM containing the AT command set interpreter, eliminating the need for external memory. The device supports tone or pulse dialing, call progress monitoring, handshake controls, guard tones, line quality monitoring with auto-retrain, and Type-I Caller ID. It operates within a 4.5V to 5.5V voltage range at speeds up to 16 MHz, utilizing 16 KB of ROM and 237 bytes of RAM. The component includes dynamic power management, a Watch-Dog Timer, and Power-On Reset circuitry.

Feature Summary

• Integrates AT command set interpreter in on-chip ROM for direct control without external memory
• Provides glueless interface to ZiLOG data pumps such as the Z02201
• Supports both synchronous and asynchronous operation modes over dial-up connections
• Includes enhanced wake-up circuitry and programmable Watch-Dog Timer

Applications

• Embedded V.22bis modem systems
• Low power consumption communication devices
• Small size requirement applications

Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to confirm package type and temperature range. Confirm that the firmware configuration matches the target country's telephone network requirements, as standard samples are tailored for North America. Ensure compatibility with the intended data pump interface before procurement.

Selection Notes

Select this component when designing a complete modem system using a compatible ZiLOG data pump. Consider the 28-pin DIP or SOIC package options based on board space constraints. Verify that the application environment falls within the commercial temperature range of 0°C to +70°C. Ensure the design accommodates the required crystal oscillator connections for the 16 MHz clock speed.

Part Context

The Z02205 serves as the central controller for V.22bis modems, managing protocol execution and DTE interface signaling. It complements the Z02201 data pump by handling high-level commands and state machines. This controller is part of the broader ZiLOG modem solution family, enabling cost-effective implementation of voice-grade data transmission capabilities in embedded hardware.

Replacement Considerations

Public confirmed substitute part numbers are not available.