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Question 1
¤@ÓEEPROM¤¸¥ó¦bPower-Up«á¡A¦b¶}©l¹ï¨ä°µ¦s¨ú°Ê§@¤§«e¡A¨Ï¥ÎªÌ¥²¶·¹ï¨ä¹w¯d¦h¤Öªº©µ¿ð®É¶¡¡HAnswer
¦bPower-Up¤§«á¡A¤j¬ù»Ý©µ¿ð10ms¡C
Question 2
HT24LCXX¥i¤£¥i¥H¥uProtect¤@¥bªº¸ê®Æ¤º®e?
Answer
¤£¥i¥H¡A¥»¤½¥qHT24LCXX¬°¥þProtected «¬¦¡¡C
Question 3
HT24¨t¦C¤§³Ì°ª¤u§@ÀW²v¬O100kHzÁÙ¬O400kHz?
Answer
·íVDD¦b2.2V~5.5Vªº½d³ò¤º®É¡A¤u§@ÀW²v¬Ò¥i¹F100kHz¡C¦ý¦pªGÀ³¥Î¹qÀ£¦b©w¦b5V
¡Ó10%ªº½d³ò¤º®É¡A«h¤u§@ÀW²v¥i¹F 400kHz¡C
Question 4
½Ð°Ý HT24LC 02/04/08/16 EEPROM ¤§ WP pin ¦³¨S¦³¤º³¡ pull high/low ? ¦bÀ³¥Î¤W¬O§_¤@©wn±µ VCC/GND ?¥i¥HFLOATING¶Ü?
Answer
¨Ì¾Ú¥Ø«eHOLTEK¤§SPEC. ,WP¤º³¡µLPull_High/Low¾÷¨î¡A»Ý±µVDD(write protected) or VSS(write mode enable),¤£¥i¥HFLOATING¡C
Question 5
EEPROM¦b¶i¦æIIC³q°T®É¤@¦¸¼g¾Þ§@§¹¦¨«á¡A¬°¤°»ò»Ýnµ¥«Ý5ms¤~¯à±Ò°Ê¤U¤@¦¸¼g¾Þ§@¡H
Answer
·íµ²§ô¤@Ó¼g¤J¶Ç¿é®É¡A¨Ã¤£¯à¥ß§Y±Ò°Ê¤U¤@Ó¼g¤J¶Ç¿é¡A¦]¦¹®ÉEEPROM¤º³¡¬O¦binternally¡Xtimed write¶g´Á¡A±N¤º³¡½w½Ä¾¹ªº¸ê®Æ¯u¥¿¼g¨ì¤º³¡°O¾ÐÅé¡A¤ñ¸û¦w¥þªº±¡ªp¤U¡A³sÄò¼g¤Jªº¶Ç¿é¦Ü¤Ön¶¡¹j5ms¡A¤~¤£·|³y¦¨¼g¤J¿ù»~¡C
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Question 1
¹ï³æ¤@µ§¸ê®Æ¼g¤J¦Ó¨¥¡APage Write·|¤ñByte Write ¸`¬Ù®É¶¡¶Ü¡HAnswer
¤£·|¡CByte Write©MPage Write °õ¦æWrite Cycle©Ò»ÝªºÁ`®É¶¡¬O¤@¼Ëªøªº¡C¥u¦³¦b¦hµ§¸ê®Æ¼g¤J®É, ¥Ñ©ó¤£»Ý«½Æ¼g¤JDevice Address»PWord Address, Page Write ¤~·|¤ñ¸û¸`¬Ù®É¶¡¡C
Question 2
HT24LC02ªºPage Buffer Size¬°8ÓBytes¡A¦pªG§Ú¦b°õ¦æPage Write®É¡A¸ü¤Jªº¸ê®Æ¶W¹L8ÓBytes·|µo¥Í¤°»ò¨Æ¡HAnswer
¦pªG§A¸ü¤Jªº¸ê®Æ¶W¹LHT24LC02ªºPager Buffer Size¡A¨º»òPage Bufferªº¦ì§}´N·|´`Àô¨ì§A¤@¶}©l¼g¤Jªº¦a¤è¡A§A¥ý«e¼g¤Jªº¸ê®Æ´N·|³QÂл\¡Cµ²ªGPager Bufferùتº¸ê®Æ·|¬O§A¹Á¸Õ¼g¤J¸ê®Æ¤º®eªº³Ì«á8ÓBytes¡C
Question 3
¤@ÓHT24LCXX¤¸¥ó¦bpower-up¤§«á¡A¥¦ªº¦ì§}«ü¼Ð¾¹ªºªì©lÈ·|¬O¦h¤Ö¡H
Answer
HT24LCXX¤¸¥ó¦bpower-up¤§«á¡A¦ì§}«ü¼Ð¾¹ªºªì©lÈ·|¬O0000h¡C¦pªG±z¦bpower-up«á¥ß§Y°õ¦æRandom Read«ü¥O¡A¨º»ò±zŪ¨ìªº±N·|¬OAddress=0000hùتº¸ê®Æ¡C
Question 4
SDA pinªºPull-Up¹qªýȸӿï¥Î¦h¤Ö¡H
Answer
¥HHT24LCXX¦Ó¨¥¡ASDA¬O¤@®ÚOpen Drain pin¡A¿ï¥Î1Kohm¡ã2Kohm¬O¸û¨ÎªºPull-Up¹qªý¡C
Question 5
¦bSCL pin»Ý¥[Pull-Up¹qªý¶Ü¡HAnswer
¤@¯ë¦Ó¨¥¬O¤£»Ýnªº¡A¦ý¦pªG§Aªº·L±±¨î¾¹ÅX°ÊºÝ¬O¤@ÓOpen-Collector pin¡A§A´N¥²¶·n¥[Pull-Up¹qªý¡C
Question 6
Serial EEPROM HT24LCXX¤§ Read Timing ©óStop condition¤§«e¥²¶·¦³¤@No
ACK?
Answer
¬Oªº, MCU±µ¨üData word §¹²¦«á,¶·°e¥XNo ACK (¦bSDA pin °e¥XHigh level¤Î¦bSCL pin °e¤@ clock)«á¦A°e¥X Stop condition,¦p¦¹¤~¬O§¹¾ãªº Read Timing .
Question 7
À³¥Îµ{¦¡¹ïHT24LCXX¼g¤J¸ê®Æ«á«oŪ¤£¨ì¸ê®Æ¡A§ï¥H¤@¯ë¿N¿ý¾¹Åª¨ú¸ê®Æ¤S¥¿½T¡A½Ð°Ý¬O¦óì¦]?
Answer
¦bÀ³¥Îµ{¦¡°e¥XSTOP¦ì¤¸§¹¦¨WRITE©R¥O«á¡AHT24LCXX¤º³¡§Y¶i¤JWRITE CYCLE¡A³Ìªø¥i¹F5ms¡C¦¹®ÉHT24LCXX¹ï¨ä¥L¥ô¦ó©R¥O±NµL¦^À³¡A¤@ª½¨ì¸ê®ÆWRITE §¹¦¨¡A¤è¥i±µ¨ü¤U¤@±ø©R¥O¡C «ØÄ³©óSTOP¦ì¤¸«á¡A¥[¤W5ms¤§delay ¦A°õ¦æ¤U¤@±ø©R¥O¡C
Question 8
¹ïHT24¨t¦C¾Þ§@®É¡A¯à¤£¯à¦b¦P¤@Ó®ÉÄÁ¯ß½Ä内¥ýµoSTOP¦ìµM«á¦AµoSTART¦ì¡H
Answer
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Question 9
¹ïHT24LC64¼g¤J³æ¤@µ§¸ê®Æ¡APage Write·|¤ñByte Write ¸`¬Ù®É¶¡¶Ü¡H
Answer
¤£·|¡CByte Write©MPage Write °õ¦æWrite Cycle©Ò»ÝªºÁ`®É¶¡¬O¤@¼Ëªøªº¡C¥u¦³¦b¦hµ§¸ê®Æ¼g¤J®É, ¥Ñ©ó¤£»Ý«½Æ¼g¤JDevice Address»PWord Address, Page Write ¤~·|¤ñ¸û¸`¬Ù®É¶¡¡C
Question 10
¨Ï¥ÎHT24LCXX®É¡A¦pªG¦b§¹¦¨Write Command¤§«e¡AWP«H¸¹½u¥Ñlow
(Unprotected)Âରhigh (Protected)¡Aµ²ªG·|¦p¦ó¡H
Answer
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Question 11
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Answer
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Question 1
·í§Ú¦b¨Ï¥Î¤@ÁûHT24LC16 IC®É¡A§Ú¬O§_¥i¥H¦b¥ô·Nªº¦ì§}¶}©l°õ¦æPage Write¡H¥¦ªº°Ê§@·|¦p¦ó©O¡H
Answer
¬Oªº¡A§A¥i¥H¦b¥ô·Nªº¦ì§}¶}©l°õ¦æPage Write¡C¦ý¥²¶·´£¿ô§A¡AHT24LC16ªºPage Buffer Size¬O16 ÓBytes¡A¦P®É§AµLªk¸ó¶V¨ì¤U¤@ÓPage¡C¦pªG§A¦b°õ¦æPage Write¥B¤w¸g¼g¨ì¸ÓPageªºµ²§À¡A±µ¤U¨Óªº¸ê®Æ·|±q³oÓPageªº°_©l¦ì§}Ä~Äò¼g¤J¡A¦Ó¤£¬O¸õ¨ì¤UÓPage¡CÁ|¦C»¡©ú¡GHT24LC16ªº²Ä¤@ÓPageªº¦ì§}¬O0x00¨ì0x0F¡A¦Ó§A±q0x0E¶}©l°õ¦æPage Write¡A¨º»ò²Ä¤@ÓByte·|¼g¤J¦ì§}0x0E¡A²Ä¤GÓByte·|¼g¤J¦ì§}0x0F¡A²Ä¤TÓByte·|´`Àô¨ì¦ì§}0x00¡C
Question 2
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Question 3
·í¤@ÓHT24LCXX ¤¸¥ó¶i¤JWrite Protect Mode«á¡A§Ú¦A¹Á¸Õ°õ¦æWrite Command·|¦p¦ó¡H
Answer
·íHT24LCXX ªºWP±µ¸}³Q±µ¨ìVCC«á¡A¾ãÓ¤¸¥ó´N·|¶i¤JWrite Protect Mode¡A§AÁÙ¬O¥i¥H¤UWrite Command¡A¦ý¬O§AµLªk¼g¤J¸ê®Æ¡A¸Ó¤¸¥ó¤]¤£·|¶i¤JWrite Cycle¡A©Ò¥H¦pªG§A±µµÛ°õ¦æ¡yAcknowledge Polling¡z°Ê§@¡A§A·|¦b²Ä¤@ÓByte´N±µ¦¬¨ìAcknowledge Bit¬°Low¡C
Question 4
·í§Ú¦b¨Ï¥ÎHT24LCXX®É¡A¦pªG¦b§Ú§¹¦¨Write Command¤§«e¡AWP«H¸¹½u¥Ñlow¡]Unprotected¡^Âରhigh¡]Protected¡^¡Aµ²ªG·|¦p¦ó¡HAnswer
°w¹ïHT24LC02/04/08/16¡A¨äWP«H¸¹½u¦bWrite Command°õ¦æ¤¤¥ÑlowÂରhigh¡A¨ä¤ÏÀ³¤À¤U¦C¨âºØª¬ªp»¡©ú¡G
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Question 5
HT24LC64ªºPage Buffer Size¬°32ÓBytes¡A¦pªG¦b°õ¦æPage Write®É¡A¸ü¤Jªº¸ê®Æ¶W¹L32ÓBytes·|µo¥Í¤°»ò¨Æ¡H
Answer
¦pªG¸ü¤Jªº¸ê®Æ¶W¹LHT24LC64ªºPager Buffer Size¡A¨º»òPage Bufferªº¦a§}´N·|°j°é¨ì¤@¶}©l¼g¤Jªº¦a¤è¡A¥ý«e¼g¤Jªº¸ê®Æ´N·|³QÂл\¡Cµ²ªGPager Bufferùتº¸ê®Æ·|¬O¹Á¸Õ¼g¤J¸ê®Æ¤º®eªº³Ì«á32ÓBytes¡C
Question 6
¨Ï¥ÎHT24LC64 IC®É¡A¬O§_¥i¥H¦b¥ô·Nªº¦a§}¶}©l°õ¦æPage Write¡H¥¦ªº°Ê§@·|¦p¦ó©O¡H
Answer
¬Oªº¡A¥i¥H¦b¥ô·Nªº¦a§}¶}©l°õ¦æPage Write¡C¦ý»Ýnª`·Nªº¬O¡AHT24LC64ªºPage Buffer Size¬O32ÓBytes¡A¦P®ÉµLªk¸ó¶V¨ì¤U¤@ÓPage¡C¦pªG¦b°õ¦æPage Write¥B¤w¸g¼g¨ì¸ÓPageªºµ²§À¡A±µ¤U¨Óªº¸ê®Æ·|±q³oÓPageªº°_©l¦a§}Ä~Äò¼g¤J¡A¦Ó¤£¬O¸õ¨ì¤UÓPage¡CÁ|¦C»¡©ú¡GHT24LC64ªº²Ä¤@ÓPageªº¦a§}¬O0x00¨ì0x1F¡A¦Ó±q0x1E¶}©l°õ¦æPage Write¡A¨º»ò²Ä¤@ÓByte·|¼g¤J¦a§}0x1E¡A²Ä¤GÓByte·|¼g¤J¦a§}0x1F¡A²Ä¤TÓByte·|°j°é¨ì¦a§}0x00¡C
Question 7
¨Ï¥Î¨ìHT24LC64®É¡A¦³¨S¦³§ó¦nªº¤èªk¥hª¾¹D¦ó®ÉWrite Cycleµ²§ô¡A¦Ó¤£¥Îµ¥¤W5ms¡H
Answer
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Question 8
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Answer
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Question 9
HT24LCxx¨t¦CA2A1A0¤Þ¸}ªº¨Ï¥Î¤èªk?
Answer
HT24LCxx¨t¦CIC®e¶q¤j¤p¤Î¤Þ¸}ªº±µªk¦p¤Uªí©Ò¥Ü¡G
Device |
Capacity |
A2A1A0 usage |
Page |
A2, A1, A0 connections |
HT24LC02 |
2K¡]256x8¡^ |
None |
1 |
All pins connected |
HT24LC04 |
4K¡]512x8¡^ |
A0 |
2 |
A0 floating, A2 and A1 connected |
HT24LC08 |
8K¡]1024x8¡^ |
A1, A0 |
4 |
A1and A0 floating, A2 connected |
HT24LC16 |
16K¡]2048x8¡^ |
A2, A1, A0 |
8 |
All pins floating |
¦bµwÅé¤W¡A»Ýn•V¸ô³s±µªº¤Þ¸}¥²¶·¦b¹q¸ô¤W¸m°ª©Î©Ô§C¡C¦b³nÅé¤W¡AŪ¼g®É§Ç¤¤Device Address¦a§}ªºA2A1A0¥²¶·»PµwÅé¤WA2A1A0¤Þ¸}ªºª¬ºA¤@P¡CA2A1A0¤¤¯BªÅªº¤Þ¸}§@úd¶¦a§}¡A®Ú¾Ú¨ä²Õ¦X¥i¥H¦³1¶¡A2¶¡A4¶©M8¶¡A¨ãÅé¹ïþ¤@¶þ¤@Ó¦r¸`¶i¦æÅª¼g¾Þ§@¡A¥ÑWord address½T©w¡C
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Question 1
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Question 2
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Question 3
¦p¦ó¦³®Ä¦a¿N¿ýEEPROM¡H
Answer
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Answer
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Question 5
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Answer
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