The 4164 Dram Datasheet is a window into the past, providing detailed technical specifications for a once-ubiquitous memory chip. Understanding this datasheet is crucial for anyone restoring vintage computers, analyzing historical hardware designs, or simply wanting to appreciate the evolution of memory technology. Let’s explore why this document holds so much value.
Decoding the 4164 Dram Datasheet Understanding its Significance
The 4164 Dram Datasheet is essentially a comprehensive reference manual for the 4164 dynamic random-access memory (DRAM) chip. This document outlines every aspect of the chip’s operation, from its pinout and voltage requirements to its timing characteristics and data storage capabilities. The datasheet was primarily used by engineers during the design phase of electronic devices incorporating the 4164. Without it, successfully integrating this memory chip into a working system would have been nearly impossible. The Datasheet includes critical information that engineers needed, such as:
- Pin configurations: Describing the function of each pin on the chip.
- Timing diagrams: Illustrating the precise timing relationships between different signals required for read and write operations.
- Electrical characteristics: Specifying voltage and current limits, power consumption, and other electrical parameters.
These parameters allow the calculation of the speed grade that the memory chip can achieve. Below is an example of timing parameters for different grade of the 4164 DRAM
| Parameter | -15 | -20 | -25 |
|---|---|---|---|
| Access Time (ns) | 150 | 200 | 250 |
| The 4164 DRAM chip itself was a significant milestone in memory technology. It packed 64 kilobits (64Kb) of storage into a single chip, which was a substantial increase in density compared to earlier DRAMs. This allowed for smaller and more powerful computers. The 4164 required a refresh cycle to retain data, unlike static RAM (SRAM), necessitating careful timing considerations detailed within the 4164 Dram Datasheet. This datasheet became vital for design considerations for many computers and hardware of that time. |
Diving Deeper
If you are curious to learn even more about the intricacies of the 4164 DRAM and its operation, consult the original 4164 Dram Datasheet directly. It provides a wealth of detailed information that can further enhance your understanding of this important piece of computing history.