Description:

Lot of 5 Motorola MC6845S CRT Controller (CRTC) ICs in ceramic DIP-40 (CERDIP/CDIP) packages with gold-plated leads. Classic video timing/address generator used in many vintage microcomputer and terminal designs. Great for repairs, retro builds, spares, or collection.

Features & Specifications:

- Manufacturer/Brand: Motorola

- MPN: MC6845S

- Type: CRT Controller (CRTC) / Video timing & address generator

- Package/Case: CERDIP-40 / CDIP-40 (ceramic DIP, gold leads)

- Mounting Style: Through Hole

- Number of Pins: 40

- Interface type: Parallel microprocessor register interface (bus-style control/addr/data)

- Output type: TTL-compatible timing/address/control outputs (HSYNC/VSYNC/DE/cursor/MA/RA, etc. – implementation-dependent)

- Typical supply: 5V logic family device (verify exact variant requirements)

- Temperature: Not confirmed from markings. MC6845 variants exist in commercial/industrial/hi-rel ranges; ceramic versions are often industrial/hi-rel. Treat as “unknown/verify” (common ranges seen: 0 to +70°C up to -55 to +125°C depending on grade).

Applications:

- Vintage computer/video card repair (CRTC replacement)

- Retrocomputing projects & display-timing generation

- Terminal/CRT controller restoration builds

- Spare parts for legacy hardware maintenance

Compatibility note:

MC6845-family parts have multiple second-sources and suffix grades. Confirm pinout match (DIP-40), required clocking, and that your design expects an MC6845-compatible CRTC (register set/timing behavior can vary slightly by manufacturer/suffix). Verify voltage/logic levels before installation.