Differences in DDR3 memory

DDR3 memory uses 8-bit prefetch design, which is twice as fast as DDR2 4-bit prefetch design. Its operating frequency is between 800MHz-1600MHz. In addition, the DDR3 specification requires that the voltage be controlled at 1.5V, which is more power-efficient than the DDR2 1.8V, and the heat output is smaller. In addition, DDR3 uses ASR (Automatic self-refresh) design to ensure that the frequency of updates is reduced to reduce the temperature without losing data. From the perspective of the overall specifications, DDR3 is not much different from DDR2 in terms of design ideas. The method to increase the transmission rate is still to increase the number of prefetched bits. However, just like the comparison of DDR2 and DDR, at the same clock frequency, the data bandwidth of DDR2 and DDR3 is the same, but DDR3 has greater potential for speed increase.
In summary, DDR3 memory has the following advantages:
1. Higher external data transmission rate 2. More advanced address/command and control bus topology 3. To further reduce power consumption while ensuring performance 4. To meet the above requirements, DDR3 is adopted on the basis of DDR2. The following new designs:
5.8bit prefetch design, DDR2 is 4bit prefetch, so the DRAM core frequency is only 1/8 of the interface frequency, DDR3-800's core operating frequency is only 100MHz
6. Use a point-to-point topology to reduce the burden on the address/command and control bus. 7. Use a production process below 100nm to reduce the operating voltage from 1.8V to 1.5V and increase the asynchronous reset and ZQ calibration.

37mm High Volt Motor:
37mm High Volt Motor, with 37mm diameter 5512 High Voltage DC Motor, the length is 57mm.
There're four high voltage we can offer: 100VDC, 120VDC, 220VDC and 230VDC.No load speed vary from 16000rpm to 18500rpm, current vary from 0.07A to 0.2A, load torque at maximum efficiency vary from 1.84g.cm to 3.57g.cm. High speed, high voltage, high consumption are the main features of this 37mm high volt motor.

Typical Applications:
Paper shredder, Food processor, Vacuum cleaner, Massager, Meat chopper,Massager, Hair clipper, Ice crusher machine, Blender, Kinds of home appliance tools...etc.

FAQ:
Q1. Can you make motors customized and what`s the delivery date?
A:Yes, we can do all types of micro DC Motor and welcome.
7-20working days
Q2: What is the payment terms?
A:T/T, Western Union, L/C, etc, easy for your business.
Q3:What information you need provide if you want we recommend motors for you?
A:You need provide the basic specification of the motor, like : Dimension, Application, Voltage, Speed and Torque. If you have samples or drawings, it's better you can send it to us.
Q4. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery
Q5: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.

37mm High Volt Motor

37mm High Volt Motor,High Voltage DC Motor,Voltage High Speed Motor,High Voltage Brush Motor

Shenzhen Gold Crown Micromotor Co., Ltd. , http://www.gcmmotor.com