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
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
