Description
Genuine Motorola MCM4116BP 4116 Lower RAM – Reliable NOS Spares
If your Sinclair ZX Spectrum is showing a black screen, vertical lines, or coloured blocks upon boot, it is highly likely that one or more of the “Lower RAM” chips has failed. These Motorola MCM4116BP chips are the industry-standard New Old Stock solution for restoring your 8-bit hardware.
Because the Lower RAM bank is critical for the Spectrum’s initial boot sequence, using high-quality, period-correct silicon is vital. Unlike “pulled” chips that may be damaged or degraded, these NOS Motorola units are unused, but tested, ensuring clean pins and original thermal integrity.
Compatibility:
- Sinclair ZX Spectrum: Direct replacement for the “Lower RAM” (IC6-IC13) in 16K and 48K models (Issue 2, 3, 3B, 4A, 4B, and 6).
- Other Retro Systems: Also suitable for any vintage hardware requiring 4116-series 16K x 1 DRAM.
Technical Specifications:
- Part Number: MCM4116BP
- Manufacturer: Motorola
- Package: 16-pin DIP
- Requirement: Uses +5V, -5V, and +12V rails (Ensure your internal power circuitry is within spec, before installation!)
Condition: New Old Stock (Unused & Tested)
