in t tng t

Bi tp ln:

Cu trc v hot ng ca USB

Nhm 1: Nguyn Hi Dng

Quang H

L Khnh Linh

Cu trc v hot ng ca USB 1

Cu trc v hot ng ca USB

Ni dung trnh by:

1. nh ngha v cu trc.

2. Nguyn l hot ng.

3. ng dng v pht trin.

2 Cu trc v hot ng ca USB

1. nh ngha v cu trc

L g?

Cu trc v hot ng ca USB 3

1.1 nh ngha

Cu trc v hot ng ca USB 4

Thit b lu tr d liu s dng b nh flash

Tch hp giao tip USB (Universal serial bus)

1.1 nh ngha

Cu trc v hot ng ca USB 5

1.2 Cu to

1. u cm usb

2. IC giao tip

3. Test point

4. Chp nh (Flash)

5. Thch anh

6. n led

7. Cng tc

8. Khong trng cho chp nh th 2.

Cu trc v hot ng ca USB 6

1.2.1 u cm USB

Cu trc v hot ng ca USB 7

Hnh nh

bn trong

u cm usb

Hnh nh

sau khi tho

b u cm

usb

1.2.2 IC giao tip

Cu trc v hot ng ca USB 8

1 dng vi x l

kt ni, truyn nhn,

lu tr thng

tin

IC thng dng: :

iCreat, Alcor, Phison,

Oti, Profilic

Bn trong: firmware

li ca UFD xut pht ch yu

1.2.3 Chp nh flash

Lu

tr

d liu

Cu trc v hot ng ca USB 9

1.2.4 Thch anh 12MHz

To xung

nhp cho

vi x l

hot ng Cu trc v hot ng ca USB 10

1.2.5 Cc b phn khc

Led bo ngun

bo ch c/ ghi d liu

Cng tc t ch cho hay khng cho ghi

ch .

Cu trc v hot ng ca USB 11

2.Nguyn l hot ng

2.1 Cu trc flash memory cell

2.2 Nguyn tc hot ng

2.2.1 Cch c thng tin

2.2.2 Cch ghi thng tin

2.2.2.1 Cch xa thng tin

2.2.2.2 Cch ghi thng tin

Cu trc v hot ng ca USB 12

2.1 Cu trc flash memory cell

Cu trc v hot ng ca USB 13

2.3 Nguyn tc hot ng

Cu trc v hot ng ca USB 14

Da vo mt

cc e nm

trn floating

gate

2.3 Nguyn tc hot ng

Cu trc v hot ng ca USB 15

2.3 Nguyn tc hot ng

Cu trc v hot ng ca USB 16

2.3 Nguyn tc hot ng

Cu trc v hot ng ca USB 17

2.3 Nguyn tc hot ng

Cu trc v hot ng ca USB 18

2.3 Nguyn tc hot ng

Cu trc v hot ng ca USB 19

2.3 Nguyn tc hot ng

Cu trc v hot ng ca USB 20

2.3 Nguyn tc hot ng

Cu trc v hot ng ca USB 21

2.3 Nguyn tc hot ng

Cu trc v hot ng ca USB 22

2.3 Nguyn tc hot ng

Cu trc v hot ng ca USB 23

2.3 Nguyn tc hot ng

Cu trc v hot ng ca USB 24

2.2.1 Cch c thng tin

Cu trc v hot ng ca USB 25

Singel level cell

Khi e nm trn floating gate in p ngng Vt tng VTo> VT1

t in p V tha mn VT1

2.2.1 Cch c thng tin

Cu trc v hot ng ca USB 26

t Vint vo wl ca bit cn c gi tr

Von vo cc bit khc trong khi

2.2.1 Cch c thng tin

Cu trc v hot ng ca USB 27

Multi level cell

2.2.2 Cch ghi thng tin

Tim e vo floating gate hoc a ra ngoi da

vo:

ng hm lng t

S phun hot electron

Cu trc v hot ng ca USB 28

2.2.2.1 Cch xa thng tin

Cu trc v hot ng ca USB 29

a tt c cc bit v gi tr 1 bng

cch t vo world line ca bit

Vhigh

2.2.2.2 Cch ghi thng tin

Cu trc v hot ng ca USB 30

t Vhigh vo word line ca bit

cn ghi d liu bit value=0

Bng tm tt nguyn l hot ng

Cu trc v hot ng ca USB 31

3. ng dng v pht trin

3.1 ng dng

3.2 Pht trin

Cu trc v hot ng ca USB 32

3.1 ng dng

Lu tr d liu c nhn quan trng

Sa cha my tnh

Qun tr h thng

S dng nh cha kha ca my tnh hay phn mm

Trong tng lai s c thay th cc a cng

Cu trc v hot ng ca USB 33

3.2 Pht trin

S dng cng ngh Multi level cells tng kh

nng lu tr v gim kch thc ca b nh.

Trong tng lai s xut hin cc thit b nh

flash mng nh giy ( thc ra l 1 loi giy

nhng chip nh) n s khng hot ng nu b t

Cu trc v hot ng ca USB 34

Ti liu tham kho

https://www.youtube.com/watch?v=s7JLXs5es7I

http://www.eeherald.com/section/design-guide/esmod16.html

http://vi.wikipedia.org/wiki/%E1%BB%94_USB_flash

http://hi-fi-web.blogspot.com/2012/06/how-flash-memory-works.html

http://123doc.vn/document/1300311-phan-tich-nguyen-ly-luu-tru-du-lieu-cua-usb-flash-memory.htm?page=4

http://www.khoahoc.com.vn/congnghemoi/cong-nghe-moi/43281_sap-co-usb-bang-giay.aspx

Cu trc v hot ng ca USB 35