A20B-2902-0193 Fanuc 16C 18C Additional DRAM module 512KB PMC

Fanuc additional DRAM (MGR) SMD Module type FANUC A20B-2902-0193 for sale online to increasy the memory of your Fanuc PMC installed on your FANUC 16C/18C Control. DRAM module with a capacity of 512KB. Fanuc DRAM module type DRAM fitts on your FANUC PCB. It will let you work easily on your Fanuc control. This DRAM module FANUC A20B-2902-0193 comes with a warranty.

DRAM is usually arranged in a square array of one capacitor and transistor per cell. The illustrations to the right show a simple example with only 4 by 4 cells (A modern DRAM matrix can be thousands of cells in length/width). The long lines connecting each row are known as word lines. Each column is actually composed of two bit lines, each one connected to every other storage cell in the column. (The illustration to the right does not include this important detail.) They are generally known as the + and − bit lines. A sense amplifier is essentially a pair of cross-connected inverters between the bit lines. That is, the first inverter is connected from the + bit line to the − bit line, and the second is connected from the − bit line to the + bit line. This is an example of positive feedback, and the arrangement is only stable with one bit line high and one bit line low. FANUC A20B-2902-0193