Z8623012SSC

Overview

The Z8623012SSC is a stand-alone NTSC Line 21 decoder manufactured by ZiLOG, designed to process Extended Data Services (XDS) within the Vertical Blanking Interval. It operates on a single 5V supply with a voltage range of 4.75 V to 5.25 V and functions within a commercial temperature range of 0°C to +70°C. The device is housed in an 18-lead SOIC surface-mount package. Key electrical inputs include composite video and horizontal timing signals, while outputs provide a Program Blocking signal and serial data via an I2C interface.

Feature Summary

• Processes XDS data from NTSC Field 2 VBI to generate a Program Blocking signal or recover raw data packets.
• Features fully programmable on-chip filters for selective extraction of specific XDS data types.
• Communicates through a bidirectional two-wire I2C serial interface supporting multiple slave addresses.
• Includes user-programmable content advisory rating selections and interrupt capabilities.

Applications

• Video input processing for television sets requiring V-Chip functionality
• Content filtering in Video Cassette Recorders (VCRs)
• Program blocking implementation in digital Set-Top boxes

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer marking with official datasheet specifications. Confirm the SOIC-18 package dimensions and pinout alignment before integration. Ensure the operating environment remains within the specified 0°C to +70°C thermal limits to maintain signal integrity and decoding accuracy.

Selection Notes

Select this component when NTSC-specific Line 21 decoding is required without external microcontroller intervention. The integrated VCO and adaptive data slicer simplify circuit design compared to discrete solutions. Verify that the host system provides the necessary composite video and horizontal sync inputs for proper operation.

Part Context

This part belongs to the Z86230 series of advanced program blocking decoders. It serves as a specialized video interface controller distinct from general-purpose logic ICs. The suffix indicates the specific package type and operational variant within the broader family of XDS processing devices.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative components based on functional compatibility with NTSC Line 21 decoding requirements and I2C interface standards.

FAQ

How does the Z86230 handle PAL video signals?

In PAL mode, the device decodes information encoded into VBI Line 22, provided the waveform conforms to NTSC Line 21 command structures.

What determines the I2C slave address used by the device?

The I2C SEL pin selects between two address sets: Low sets addresses 28h/29h, while High sets addresses 2Ah/2Bh.

Is the XDS filter configuration adjustable?

Yes, the on-chip XDS filters are fully programmable, allowing users to select preprogrammed values for extracting specific data packets.