Description
NEC 4116 (uPD4116) Lower RAM – High-Quality New Old Stock
A common failure point in early 8-bit computers is the Dynamic RAM (DRAM). These NEC 4116 chips (often marked as uPD4116) are the perfect solution for repairing faulty memory banks. As New Old Stock, they have never been soldered or used, meaning they haven’t been subjected to decades of heat cycles or electrical stress.
Compatibility:
- Sinclair ZX Spectrum: The essential replacement for the “Lower RAM” (the first 16K bank, IC6 to IC13) in all 16K and 48K models (Issue 2 to Issue 6).
- Other Retro Systems: Suitable for any vintage hardware requiring 4116-series 16K x 1 DRAM, such as early arcade boards or memory expansion cards.
Technical Specifications:
- Manufacturer: NEC
- Part Number: uPD4116 (4116 series)
- Package: 16-pin DIP
- Voltages Required: -5V, +5V, and +12V
- Condition: New Old Stock (Unused)
Note: The 4116 RAM is highly sensitive to voltage rail failure. Always ensure your ZX Spectrum’s internal power circuitry (particularly the TR4/TR5 transistors) are functioning correctly before installing new Lower RAM
