IC????????(?)

1
IC????????(?) ?????????????

• ?????????

2
????

• ???IC???????????
• ????
• ???????????
• ??????AT24C??
• ?????????
• ?????????

3
????IC??????

• ??????IC????
• ??AT24C
• IC??????????
• 1????????????????
• 2????????????????????PC?

4
???????????? AT24C???IC?

• ?????IC???????,???????????????????????????????,???
  ????????????????IC??????????????ISO7816??????????

5
???IC??????

• ???IC ?????????
• ???????????????

6
(No Transcript)
7
???IC??????

• ???IC????????????
• ???IC?????????????????????????????????,?????????
  ????????????
• ???IC??????????????
• ???IC?????????????????????????????????,?????????
  ?????(??)?

8
IC?????????

• ???IC??8???,?8???????,?C1?C8

9
??????
10
????
11
????(Memory Card)

• ???????????EEPRO?Flash Memory?
• ?????,????????????????
• ?????????????????
• ????????ISO7816????,????2???????(I2C????)?3???????
  (SPI??)?
• ????,????????????????????,????????????????????????
  ?(????)????

12
????????

• ?????????
• ??ATMEL???
• AT24??EEPROM,2????I2C????
• AT93??EEPROM,3?????
• AT45?? DataFlash ,?64M bit,SPI??

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Serial EEPROM

• Atmel is the leading supplier of Serial EEPROM
  devices supporting 2-wire, 3-wire, and SPI
  protocols, memory densities from 1K-bit through
  1M-bit, voltages from 1.8V to 5.5V, and industry
  standard PDIP, SOIC, and TSSOP package types.

AT24?? 2-wire AT25?? SPI AT93?? 3-wire
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DataFlash

• DataFlash is the world's number one selling
  serial interface flash family. Introduced in
  1997, Atmel's Dataflash families (45 series and
  the recently introduced 26 series) are feature
  rich, low pin count, sequential access families
  ideal for program code, data storage, Serial
  EEPROM replacement, and the next generation PC
  Bios Market.

15

• The simple SPI interface greatly reduces system
  pin counts, power consumption and switching
  noise. System design is greatly simplified with
  DataFlash, as all densities 1 Mbit to 128 Mbits
  (45 series), and 4 Mbit to 32M bit (26 series)
  require only 4 pins to connect to the system
  processor, controller or DSP.

AT45?? SPI AT26?? SPI
16
AT24C??????

• ????
• ????
• ?????????
• ????
• ????
• ????
• ????

17
AT24C????

• ???/??????1.8V5V
• 2?????????
• ??7816-10????
• 8B(01/02)?16B(04/08/16)?32B(32/64)??????
• ???????
• ????????100 000??/??,?????100?

18
AT24C?????????
AT24C?? 01A 02 04 08 16 32 64 128 256
?? 1Kbits 2Kb 4Kb 8K 16K 32K 64K 128K 256K
?????? 1288 2568 5128 10248 2568 20488 81928 163848 327868
????? 8B 8B 16B 16B 16B 32B 32B 64B 64B
???? ISO/IEC7816-3????,?????? ISO/IEC7816-3????,?????? ISO/IEC7816-3????,?????? ISO/IEC7816-3????,?????? ISO/IEC7816-3????,?????? ISO/IEC7816-3????,?????? ISO/IEC7816-3????,?????? ISO/IEC7816-3????,?????? ISO/IEC7816-3????,??????
???? 1MHz(5V),1MHz(2.7V),400KHz(1.8V) 1MHz(5V),1MHz(2.7V),400KHz(1.8V) 1MHz(5V),1MHz(2.7V),400KHz(1.8V) 1MHz(5V),1MHz(2.7V),400KHz(1.8V) 1MHz(5V),1MHz(2.7V),400KHz(1.8V) 1MHz(5V),1MHz(2.7V),400KHz(1.8V) 1MHz(5V),1MHz(2.7V),400KHz(1.8V) 1MHz(5V),1MHz(2.7V),400KHz(1.8V) 1MHz(5V),1MHz(2.7V),400KHz(1.8V)
???? 5V,????1.8V 5V,????1.8V 5V,????1.8V 5V,????1.8V 5V,????1.8V 5V,????1.8V 5V,????1.8V 5V,????1.8V 5V,????1.8V
ICC?? ?1mA,?3mA ?1mA,?3mA ?1mA,?3mA ?1mA,?3mA ?1mA,?3mA ?1mA,?3mA ?1mA,?3mA ?1mA,?3mA ?1mA,?3mA
???? 0-70? 0-70? 0-70? 0-70? 0-70? 0-70? 0-70? 0-70? 0-70?
?/???? ??1,000,000? ??1,000,000? ??1,000,000? ??1,000,000? ??1,000,000? ??1,000,000? ??1,000,000? ??1,000,000? ??1,000,000?
???? 100? 100? 100? 100? 100? 100? 100? 100? 100?
???? ???? ???? ???? ???? ???? ???? ???? ???? ????
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AT24C???????

• AT24C01
• ??1Kbits/
• ????128B8?????????
• ??(????)??0127?00H7FH
• AT24C064
• ??64Kbits/
• ????8KB8?????????
• ???? 08091?0000H1FFFH

20
?????????

• C1Vcc
• C2 (NC)
• C3SCL????
• C4 (NC)
• C5GND
• C6SDA????????
• C7 (NC)
• C8 (NC)

21
????
22
??1 ???????????

• ?????????IC???????????????????????????
• ????????IC????????????,????5V????????????(??),???
  ?????????.
• ?????IC??????????DEMO,???????
• ?AT24C01??????IC???????(????????,?????????????),??
  DEMO???AT24C01????/?/????,????????????????

23
????

• AT24C01??????1Kbits(128 Byte),?????1288bits(????0
  127?00H7FH)?
• AT24C01?????,??????/?/???????????????????

24
??????

• ????
• ???????
• ?????????
• ????
• ???
• ?????