{"id":5369,"date":"2025-08-21T00:00:00","date_gmt":"2025-08-21T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/glossary\/eeprom-electrically-erasable-programmable-read-only-memory\/"},"modified":"2026-06-22T08:15:58","modified_gmt":"2026-06-22T08:15:58","slug":"eeprom-electrically-erasable-programmable-read-only-memory","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/eeprom-electrically-erasable-programmable-read-only-memory","title":{"rendered":"EEPROM (B\u1ed9 nh\u1edb ch\u1ec9 \u0111\u1ecdc c\u00f3 th\u1ec3 l\u1eadp tr\u00ecnh v\u00e0 x\u00f3a b\u1eb1ng \u0111i\u1ec7n) l\u00e0 g\u00ec?"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/04197c44b86847aa9c417fd6f43bce24.webp\" alt=\"Close-up of optical module circuit board with EEPROM chip highlighted, showing data roles in network hardware.\" class=\"wp-image-5367\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/04197c44b86847aa9c417fd6f43bce24.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/04197c44b86847aa9c417fd6f43bce24-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/04197c44b86847aa9c417fd6f43bce24-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/04197c44b86847aa9c417fd6f43bce24-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/04197c44b86847aa9c417fd6f43bce24-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udc49 \u0110\u1ecbnh ngh\u0129a<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">EEPROM, vi\u1ebft t\u1eaft c\u1ee7a <strong>B\u1ed9 nh\u1edb ch\u1ec9 \u0111\u1ecdc c\u00f3 th\u1ec3 l\u1eadp tr\u00ecnh v\u00e0 x\u00f3a b\u1eb1ng \u0111i\u1ec7n<\/strong>, l\u00e0 m\u1ed9t lo\u1ea1i <strong>b\u1ed9 nh\u1edb kh\u00f4ng bay h\u01a1i<\/strong> c\u00f3 kh\u1ea3 n\u0103ng l\u01b0u gi\u1eef d\u1eef li\u1ec7u ngay c\u1ea3 khi ngu\u1ed3n \u0111i\u1ec7n b\u1ecb ng\u1eaft. Kh\u00e1c v\u1edbi b\u1ed9 nh\u1edb ch\u1ec9 \u0111\u1ecdc truy\u1ec1n th\u1ed1ng (ROM), EEPROM c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c x\u00f3a v\u00e0 l\u1eadp tr\u00ecnh l\u1ea1i <strong>b\u1eb1ng \u0111i\u1ec7n, ngay tr\u00ean m\u1ea1ch<\/strong>, m\u00e0 kh\u00f4ng c\u1ea7n c\u00e1c c\u00f4ng c\u1ee5 b\u00ean ngo\u00e0i \u0111\u1eb7c bi\u1ec7t nh\u01b0 tia c\u1ef1c t\u00edm (\u0111\u01b0\u1ee3c d\u00f9ng trong EPROM).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y khi\u1ebfn EEPROM \u0111\u1eb7c bi\u1ec7t c\u00f3 gi\u00e1 tr\u1ecb trong c\u00e1c h\u1ec7 th\u1ed1ng nh\u00fang, vi \u0111i\u1ec1u khi\u1ec3n v\u00e0 thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ti\u00eau d\u00f9ng, n\u01a1i m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf d\u1eef li\u1ec7u ph\u1ea3i \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt v\u00e0 b\u1ea3o to\u00e0n m\u1ed9t c\u00e1ch \u0111\u00e1ng tin c\u1eady.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udc49 C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>L\u01b0u tr\u1eef kh\u00f4ng bay h\u01a1i<\/strong> \u2013 D\u1eef li\u1ec7u v\u1eabn nguy\u00ean v\u1eb9n khi kh\u00f4ng c\u00f3 ngu\u1ed3n \u0111i\u1ec7n.<\/p><\/li><li><p><strong>X\u00f3a v\u00e0 ghi theo t\u1eebng byte<\/strong> \u2013 Cho ph\u00e9p s\u1eeda \u0111\u1ed5i d\u1eef li\u1ec7u m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c m\u00e0 kh\u00f4ng c\u1ea7n ghi l\u1ea1i to\u00e0n b\u1ed9 kh\u1ed1i.<\/p><\/li><li><p><strong>\u0110\u1ed9 b\u1ec1n<\/strong> \u2013 \u0110\u1ed9 b\u1ec1n \u0111i\u1ec3n h\u00ecnh t\u1eeb <strong>000 \u0111\u1ebfn 1.000.000 chu k\u1ef3 ghi\/x\u00f3a<\/strong>, t\u00f9y thu\u1ed9c v\u00e0o c\u00f4ng ngh\u1ec7.<\/p><\/li><li><p><strong>Kh\u1ea3 n\u0103ng l\u1eadp tr\u00ecnh ngay tr\u00ean m\u1ea1ch<\/strong> \u2013 C\u00f3 th\u1ec3 c\u1eadp nh\u1eadt tr\u1ef1c ti\u1ebfp khi \u0111\u00e3 t\u00edch h\u1ee3p v\u00e0o thi\u1ebft b\u1ecb.<\/p><\/li><li><p><strong>C\u00e1c t\u00f9y ch\u1ecdn giao di\u1ec7n<\/strong> \u2013 Th\u01b0\u1eddng c\u00f3 s\u1eb5n d\u01b0\u1edbi d\u1ea1ng <strong>EEPROM n\u1ed1i ti\u1ebfp<\/strong> (I\u00b2C, SPI) ho\u1eb7c <strong>EEPROM song song<\/strong>.<\/p><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udc49 Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a EEPROM<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">EEPROM d\u1ef1a v\u00e0o <strong>b\u00f3ng b\u00e1n d\u1eabn c\u1ed5ng n\u1ed5i<\/strong> \u0111\u1ec3 l\u01b0u tr\u1eef d\u1eef li\u1ec7u:<\/p>\n\n\n\n<ol class=\"wp-block-list\" >\n<li><p><strong>L\u1eadp tr\u00ecnh (ghi):<\/strong> \u00c1p d\u1ee5ng \u0111i\u1ec7n \u00e1p cao h\u01a1n b\u00ecnh th\u01b0\u1eddng \u0111\u1ec3 \u00e9p c\u00e1c electron v\u00e0o c\u1ed5ng n\u1ed5i, l\u00e0m thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i c\u1ee7a b\u00f3ng b\u00e1n d\u1eabn.<\/p><\/li><li><p><strong>X\u00f3a:<\/strong> \u0110\u1ea3o ng\u01b0\u1ee3c qu\u00e1 tr\u00ecnh n\u00e0y \u0111\u1ec3 lo\u1ea1i b\u1ecf c\u00e1c electron kh\u1ecfi c\u1ed5ng, thi\u1ebft l\u1eadp l\u1ea1i \u00f4 nh\u1edb.<\/p><\/li><li><p><strong>\u0110\u1ecdc:<\/strong> H\u1ec7 th\u1ed1ng c\u1ea3m nh\u1eadn \u0111i\u1ec7n \u00e1p ng\u01b0\u1ee1ng c\u1ee7a b\u00f3ng b\u00e1n d\u1eabn \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh bit \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef l\u00e0 0 hay 1.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">C\u01a1 ch\u1ebf n\u00e0y cho ph\u00e9p <strong>kh\u1ea3 n\u0103ng l\u01b0u gi\u1eef d\u1eef li\u1ec7u \u0111\u00e1ng tin c\u1eady trong nhi\u1ec1u n\u0103m<\/strong>, khi\u1ebfn EEPROM tr\u1edf th\u00e0nh gi\u1ea3i ph\u00e1p \u0111\u01b0\u1ee3c tin c\u1eady cho vi\u1ec7c l\u01b0u tr\u1eef d\u1eef li\u1ec7u nh\u1ecf nh\u01b0ng quan tr\u1ecdng.<\/p>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udc49 C\u00e1c \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn c\u1ee7a EEPROM<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">EEPROM \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p nh\u1edd \u0111\u1ed9 tin c\u1eady khi l\u01b0u tr\u1eef <strong>d\u1eef li\u1ec7u nh\u1ecf nh\u01b0ng thi\u1ebft y\u1ebfu<\/strong>. C\u00e1c \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Vi \u0111i\u1ec1u khi\u1ec3n:<\/strong> L\u01b0u tr\u1eef c\u00e1c h\u1eb1ng s\u1ed1 hi\u1ec7u chu\u1ea9n, c\u1ea5u h\u00ecnh thi\u1ebft b\u1ecb v\u00e0 nh\u1eadt k\u00fd ch\u1ea1y ch\u01b0\u01a1ng tr\u00ecnh.<\/p><\/li><li><p><strong>M\u00e1y t\u00ednh &amp; m\u00e1y ch\u1ee7:<\/strong> L\u01b0u tr\u1eef d\u1eef li\u1ec7u SPD (Serial Presence Detect) trong c\u00e1c module RAM.<\/p><\/li><li><p><strong>Thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ti\u00eau d\u00f9ng:<\/strong> H\u1ec7 th\u1ed1ng m\u1edf kh\u00f3a kh\u00f4ng ch\u00eca, th\u1ebb th\u00f4ng minh v\u00e0 thi\u1ebft b\u1ecb IoT.<\/p><\/li><li><p><strong>H\u1ec7 th\u1ed1ng c\u00f4ng nghi\u1ec7p:<\/strong> L\u01b0u tr\u1eef an to\u00e0n c\u00e1c kh\u00f3a m\u00e3 h\u00f3a, ID thi\u1ebft b\u1ecb v\u00e0 d\u1eef li\u1ec7u hi\u1ec7u chu\u1ea9n c\u1ea3m bi\u1ebfn.<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >EEPROM trong B\u1ed9 Thu Ph\u00e1t Quang <\/h3>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/4c38067693b14da4bde30270b950cfd1.webp\" alt=\"EEPROM in Optical Transceivers \" class=\"wp-image-5368\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/4c38067693b14da4bde30270b950cfd1.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/4c38067693b14da4bde30270b950cfd1-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/4c38067693b14da4bde30270b950cfd1-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/4c38067693b14da4bde30270b950cfd1-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/4c38067693b14da4bde30270b950cfd1-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Trong ph\u1ea7n c\u1ee9ng m\u1ea1ng, c\u00e1c module SFP v\u00e0 QSFP <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"><strong>M\u00f4-\u0111un quang h\u1ecdc<\/strong><\/a> t\u00edch h\u1ee3p EEPROM \u0111\u1ec3 l\u01b0u tr\u1eef th\u00f4ng tin quan tr\u1ecdng nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>ID nh\u00e0 cung c\u1ea5p v\u00e0 m\u00e3 linh ki\u1ec7n<\/p><\/li><li><p>B\u01b0\u1edbc s\u00f3ng v\u00e0 t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u h\u1ed7 tr\u1ee3<\/p><\/li><li><p>S\u1ed1 s\u00ea-ri v\u00e0 chi ti\u1ebft s\u1ea3n xu\u1ea5t<\/p><\/li><li><p>M\u00e3 t\u01b0\u01a1ng th\u00edch v\u00e0 tu\u00e2n th\u1ee7<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c ti\u00eau chu\u1ea9n nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/sff-8024-standard-for-universal-transceiver-id-and-management-codes\/\"><strong>SFF-8024<\/strong><\/a> (m\u00e3 ID b\u1ed9 thu ph\u00e1t) v\u00e0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/sfp-8472-standard-explained-ddm-for-optical-transceivers\/\"><strong>Long-distance fiber links<\/strong><\/a> (gi\u00e1m s\u00e1t ch\u1ea9n \u0111o\u00e1n k\u1ef9 thu\u1eadt s\u1ed1) quy \u0111\u1ecbnh c\u1ea5u tr\u00fac v\u00e0 n\u1ed9i dung c\u1ee7a EEPROM n\u00e0y, \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c nh\u00e0 cung c\u1ea5p. Khi m\u1ed9t b\u1ed9 thu ph\u00e1t \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi b\u1ed9 chuy\u1ec3n m\u1ea1ch ho\u1eb7c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn, thi\u1ebft b\u1ecb ch\u1ee7 s\u1ebd \u0111\u1ecdc EEPROM \u0111\u1ec3 x\u00e1c minh t\u00ednh t\u01b0\u01a1ng th\u00edch c\u0169ng nh\u01b0 truy c\u1eadp th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u00e0 d\u1eef li\u1ec7u ch\u1ea9n \u0111o\u00e1n c\u1ee7a module.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udc49 So s\u00e1nh EEPROM v\u00e0 b\u1ed9 nh\u1edb Flash<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 Flash v\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt l\u00e0 m\u1ed9t d\u1ea1ng EEPROM, nh\u01b0ng v\u1eabn t\u1ed3n t\u1ea1i nh\u1eefng kh\u00e1c bi\u1ec7t \u0111\u00e1ng k\u1ec3:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>\u0110\u1eb7c t\u00ednh<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\ud83d\uddc2\ufe0f EEPROM<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\u26a1 B\u1ed9 nh\u1edb Flash<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>\u0110\u1ed9 ph\u00e2n gi\u1ea3i x\u00f3a<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Theo t\u1eebng byte<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Theo kh\u1ed1i (v\u00ed d\u1ee5: 512 byte ho\u1eb7c l\u1edbn h\u01a1n)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>T\u00ednh linh ho\u1ea1t khi ghi<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cao \u2013 cho ph\u00e9p c\u1eadp nh\u1eadt ch\u00ednh x\u00e1c<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>H\u1ea1n ch\u1ebf \u2013 ph\u1ea3i ghi l\u1ea1i c\u00e1c ph\u1ea7n l\u1edbn<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>T\u1ed1c \u0111\u1ed9<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ch\u1eadm h\u01a1n<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Nhanh h\u01a1n, t\u1ed1i \u01b0u cho l\u01b0u tr\u1eef dung l\u01b0\u1ee3ng l\u1edbn<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>M\u1eadt \u0111\u1ed9<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Lower<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cao h\u01a1n, ph\u00f9 h\u1ee3p cho l\u01b0u tr\u1eef kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>\u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>L\u01b0u tr\u1eef tham s\u1ed1 nh\u1ecf (c\u1ea5u h\u00ecnh, hi\u1ec7u chu\u1ea9n, kh\u00f3a)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ph\u1ea7n m\u1ec1m\u56fa\u4ef6, l\u01b0u tr\u1eef d\u1eef li\u1ec7u l\u1edbn<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup\/><tbody><tr\/><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udc49 K\u1ebft lu\u1eadn<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">EEPROM v\u1eabn l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 b\u1ed9 nh\u1edb then ch\u1ed1t trong \u0111i\u1ec7n t\u1eed hi\u1ec7n \u0111\u1ea1i. D\u00f9 Flash chi\u1ebfm \u01b0u th\u1ebf trong l\u01b0u tr\u1eef m\u1eadt \u0111\u1ed9 cao, th\u00ec <strong>\u0111\u1ed9 ch\u00ednh x\u00e1c, \u0111\u1ed9 tin c\u1eady v\u00e0 t\u00ednh linh ho\u1ea1t<\/strong> c\u1ee7a EEPROM khi\u1ebfn n\u00f3 tr\u1edf n\u00ean kh\u00f4ng th\u1ec3 thi\u1ebfu \u0111\u1ec3 l\u01b0u tr\u1eef d\u1eef li\u1ec7u nh\u1ecf nh\u01b0ng quan tr\u1ecdng. Trong l\u0129nh v\u1ef1c m\u1ea1ng, EEPROM cho ph\u00e9p c\u00e1c b\u1ed9 thu ph\u00e1t quang truy\u1ec1n \u0111\u1ea1t th\u00f4ng tin nh\u1eadn d\u1ea1ng, hi\u1ec7u n\u0103ng v\u00e0 t\u00ednh t\u01b0\u01a1ng th\u00edch, \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng li\u1ec1n m\u1ea1ch gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb v\u00e0 nh\u00e0 cung c\u1ea5p.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udc49 C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C1: EEPROM l\u00e0 b\u1ed9 nh\u1edb d\u1ec5 bay h\u01a1i hay kh\u00f4ng bay h\u01a1i?<\/strong><br\/>EEPROM l\u00e0 <strong>b\u1ed9 nh\u1edb kh\u00f4ng bay h\u01a1i<\/strong>, ngh\u0129a l\u00e0 n\u00f3 gi\u1eef nguy\u00ean d\u1eef li\u1ec7u ngay c\u1ea3 khi kh\u00f4ng c\u00f3 ngu\u1ed3n \u0111i\u1ec7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C2: EEPROM c\u00f3 tu\u1ed5i th\u1ecd bao l\u00e2u?<\/strong><br\/>EEPROM hi\u1ec7n \u0111\u1ea1i th\u01b0\u1eddng ch\u1ecbu \u0111\u01b0\u1ee3c t\u1ed1i \u0111a <strong>000.000 chu k\u1ef3 ghi\/x\u00f3a<\/strong>, v\u1edbi kh\u1ea3 n\u0103ng l\u01b0u gi\u1eef d\u1eef li\u1ec7u trong kho\u1ea3ng <strong>10\u201320 n\u0103m<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C3: V\u00ec sao s\u1eed d\u1ee5ng EEPROM trong <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"><strong>b\u1ed9 thu ph\u00e1t quang<\/strong><\/a><strong>?<\/strong><br\/>EEPROM l\u01b0u tr\u1eef d\u1eef li\u1ec7u thi\u1ebft y\u1ebfu c\u1ee7a module\u2014nh\u01b0 ID nh\u00e0 cung c\u1ea5p, b\u01b0\u1edbc s\u00f3ng v\u00e0 c\u00e1c tham s\u1ed1 ch\u1ea9n \u0111o\u00e1n\u2014cho ph\u00e9p c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch v\u00e0 b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn nh\u1eadn d\u1ea1ng, c\u1ea5u h\u00ecnh v\u00e0 gi\u00e1m s\u00e1t b\u1ed9 thu ph\u00e1t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C4: S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa EEPROM v\u00e0 Flash l\u00e0 g\u00ec?<\/strong><br\/>EEPROM h\u1ed7 tr\u1ee3 <strong>c\u1eadp nh\u1eadt theo t\u1eebng byte<\/strong>, l\u00fd t\u01b0\u1edfng cho c\u00e1c thay \u0111\u1ed5i nh\u1ecf th\u01b0\u1eddng xuy\u00ean, trong khi Flash \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho <strong>l\u01b0u tr\u1eef dung l\u01b0\u1ee3ng l\u1edbn theo kh\u1ed1i<\/strong>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Kh\u00e1m ph\u00e1 c\u00e1ch EEPROM \u0111\u1ea3m b\u1ea3o c\u1ea5u h\u00ecnh \u0111\u00e1ng tin c\u1eady, kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u01b0\u1ee3t tr\u1ed9i v\u00e0 t\u00ednh linh ho\u1ea1t su\u1ed1t v\u00f2ng \u0111\u1eddi ph\u1ea7n c\u1ee9ng m\u1ea1ng: t\u1eeb RJ45 \u0111\u1ebfn c\u00e1c module quang.<\/p>","protected":false},"author":1,"featured_media":5367,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[27],"tags":[26],"class_list":["post-5369","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glossary","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5369","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/comments?post=5369"}],"version-history":[{"count":5,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5369\/revisions"}],"predecessor-version":[{"id":11235,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5369\/revisions\/11235"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/5367"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=5369"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=5369"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=5369"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}