Now, if you look within a DRAM, the circuit behind every DQ pin is made up of a set of parallel 240Ω resistor legs, as shown in Figure 4. Because of the nature of CMOS devices, these resistors are never exactly 240Ω. The resistance is even affected due to voltage and temperature changes. So, they are made tunable.
Посол США выступил с угрозами к лидеру польской партии02:04
，这一点在吃瓜中也有详细论述
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