9900 overview
9900 is a component documented by Texas Instruments. The PDF description identifies it as "Video Display Processors NOVEMBER 1982." This guide condenses the most useful engineering information from the available PDF so that designers and sourcing teams can identify the checks that still need confirmation in the original document.
Datasheet snapshot
- Manufacturer: Texas Instruments
- Part number: 9900
- Category: IC
- Datasheet length: 104 Pages
Applications listed in the PDF
- ARCHITECTURE The TMS9918A video display processor (VDP) is designed to provide a simple interface between a microprocessor and a raster-scanned color television. The TMS9928A/9929.
Specifications and operating details
The following points were extracted from the PDF text. Check the associated conditions, notes and limits in the complete document before using a value in a design.
- The TMS9928A/9929A VDPs are functionally identical to the TMS9918A except that the NTSC color encoding circuitry has been removed and replaced with luminance and color difference signals.
- The TMS9918A is pin-for-pin compatible with the TMS9928A/9929A, except for three pins, the composite video output, the external video input and the CPU Clock output.
- The TMS9918A/9928A have a 525-line format for U.S.
- The TMS9918A/9928A/9929A VDPs use either a 4K, 8K, or 16K-type low-cost dynamic memory (TMS4027, TMS4108, TMS4116) for storage of the display parameters.
- Thus, all references to VDP in this document apply to all three devices, except where noted. © _ Single-chip solution for interfacing color TVs (excluding Random-Access Memory (RAM) and Radio Frequency (RF) modulator (TMS9918A only) @ =256.
- The TMS9928A/9929A require additional encoder circuitry to interface to a RGB or to a composite video monitor.
- RAM Random-Access Memory RAS Row-Address Strobe RASTER The area in which an image is reproduced RF Radio Frequency R-G-B Red-Green-Biue ROM Read-Only Memory R/W Read/Write R-Y Red color difference output Sprite An object whose pattern is r.
Engineering review checklist
- Confirm supply rails, clock limits, memory size, peripheral mapping and I/O voltage compatibility.
- Check package pinout, boot configuration, programming interface and silicon-revision errata.
- Budget decoupling, thermal margin, startup timing and firmware recovery behavior before release.
Always confirm values against the latest manufacturer-controlled datasheet, especially when qualifying a substitute or releasing a production BOM.
View the complete PDF and model record
Open the 9900 datasheet and model details to review the complete PDF, document pages and available product information.
Source attribution
Adapted from the PDF associated with this DigiCamel model page.
Source model URL: https://www.digicamel.com/product.php?slug=9900-texas-instruments