Part Number: 8873CSCNG6PR6

Function: Latest TV co-developed two special decoder core

Package: DIP 64 Type

Manufacturer: Toshiba

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Description

TMPA8873CSCNG6PR6, 8873CSCNG6PR6 is a newly developed 2-in-1 color TV special decoding chip from Toshiba Corporation of Japan. It can be applied to 14″~29″ movements and has a variety of functions to expand from simple to high-end full range of machines on a single PCB motherboard. core. This IC serves as the central control and signal-processing unit in analog TV systems, handling video decoding, synchronization, user control, and system management.

Key Architecture

• Integrated Video Processor + Microcontroller (MCU)
• Embedded 8-bit CPU core
• On-chip memory (ROM + RAM)
• Multi-standard TV signal decoding capability
• Designed for single-board TV solutions

Features

1. High-speed 8 bits CPU.

2. 8MHZ crystal, minimum instruction cycle is 0.5μs.

3. 2-KRAM, 48K ROM.

4. 12 I / O port

5. The special remote control, count register.

6. 16 interrupt sources, five external interrupts, 11 internal interrupts.

7. There are two ways to detect the sync signal, the internal register and the external pulse count.

Pinout and Block Diagrams

TV Decoding

1. Built-in notch filter, bandpass filter, PIF VCO circuit.
2. Black level extension, brightness gamma correction function.
3. PAL/NTSC decoding circuit.
4. Two-channel audio input port, two-channel volume control output port, and one channel audio output port. Body sound control.

Design Insights (Important)

• Crystal accuracy (8MHz) is critical for timing stability
• Interrupt handling must be carefully configured in firmware
• Proper grounding and separation of analog/digital sections required
• Sync signal integrity directly affects picture stability
• ROM is fixed → firmware customization is limited to specific variants

Applications

• CRT televisions (14″ to 29″)
• Analog TV receiver systems
• Low-cost integrated TV mainboards
• Consumer video display systems

Advantages

• High integration reduces BOM cost
• Single-chip TV solution
• Flexible for multiple TV models (low-end to high-end)
• Reliable and mature architecture

Related / Comparable ICs

• LA76931 (video/sound processor series)
• TDA9381 (Philips/NXP TV processor)
• OM8370 series
• Other Toshiba TMPA88xx family devices

Other data sheets are available within the file: TMPA8873CSCNG6PR6

8873CSCNG6PR6 Datasheet PDF