Z0220516SSGR3641

Overview

The Z02205 is a V.22bis modem controller designed for low power consumption and small size requirements. 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 a speed of 16 MHz, utilizing 16 KB of ROM and 237 bytes of RAM. The component includes dynamic power management, a Watch-Dog Timer (WDT), and Power-On Reset (POR) circuitry.

Feature Summary

• Glueless interface to Z02201 modem data pump
• Integrated AT command set interpreter in on-chip ROM
• Dynamic power management with HALT and STOP modes
• Supports both SYNC and ASYNC operation modes

Applications

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

Procurement Notes

Verify that the specific ordering suffix matches the required package type, as the Z02205 is available in 28-pin DIP and SOIC packages. Confirm that the firmware configuration aligns with the target country's telephone network standards, as standard samples are tailored for North American networks and may require modification for production usage in other regions.

Selection Notes

Select this component when designing embedded V.22bis modems requiring minimal external memory due to its integrated ROM. Ensure the application environment stays within the 0°C to +70°C commercial temperature range. Verify compatibility with the Z02201 data pump for a glueless interface solution. Consider the 4.5V to 5.5V operating voltage range for power supply design.

Part Context

The Z02205 serves as the central controller for V.22bis modem implementations by ZiLOG. It complements the Z02201 data pump to form a complete modem solution when combined with a phone line interface and DTE connection. This controller handles all protocol logic, including AT command execution, dialing, and handshaking, allowing system designers to focus on physical layer integration.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.