Description
Reliable Memory Replacement – Motorola 4164 DRAM for 8-Bit Classics
The Essential Repair Component
The 4164 RAM integrated circuit is perhaps one of the most frequently replaced components in the world of retro computer repair. Over decades, original factory RAM can become prone to internal failure, leading to system instability, crashing, or a total failure to boot. This Motorola 4164 (MN4164P-15A) is a premium replacement designed to restore your system to full health.
Perfect for the ZX Spectrum 48k
In the Sinclair ZX Spectrum 48k, the 4164 chips occupy the “Upper RAM” section (IC15 to IC22). If your machine boots to the copyright screen but crashes when loading games, or reports “Out of Memory,” a faulty 4164 is often the culprit. Replacing these ageing chips is a foundational step in any professional refurbishment.
Commodore 64 Compatibility
The Motorola 4164 is also a direct replacement for the memory chips found in the Commodore 64. It provides the steady, reliable 5v operation required by the C64’s motherboard, helping to eliminate the “Black Screen of Death” often caused by memory failure.
Technical Specifications:
- Type: Dynamic RAM (DRAM)
- Capacity: 64k x 1 Bit
- Speed: 150ns (Standard for Spectrum and C64)
- Package: 16-pin DIL (Dual In-Line)
- Voltage: Single +5V Supply
Installation Tip:
To future-proof your repair, we highly recommend installing a high-quality 16-pin DIL socket rather than soldering the IC directly to the motherboard. This makes any future maintenance significantly easier and prevents heat stress on the new component during installation.
