{"id":1190,"date":"2021-09-06T03:50:44","date_gmt":"2021-09-06T03:50:44","guid":{"rendered":"https:\/\/smdelectro.com\/?post_type=product&#038;p=1190"},"modified":"2022-08-16T22:59:02","modified_gmt":"2022-08-16T22:59:02","slug":"74hc138d","status":"publish","type":"product","link":"https:\/\/smdelectro.com\/index.php\/product\/74hc138d\/","title":{"rendered":"74HC138D"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<div>\n<p class=\"tag-line\">3-to-8 line decoder\/demultiplexer; inverting<\/p>\n<div class=\"pip-icons-wrapper\">The 74HC138; 74HCT138 decodes three binary weighted address inputs (A0, A1 and A2) to eight mutually exclusive outputs (<span class=\"ph overline\">Y<\/span>0 to\u00a0<span class=\"ph overline\">Y<\/span>7). The device features three enable inputs (<span class=\"ph overline\">E<\/span>1,\u00a0<span class=\"ph overline\">E<\/span>2 and E3). Every output will be HIGH unless\u00a0<span class=\"ph overline\">E<\/span>1 and\u00a0<span class=\"ph overline\">E<\/span>2 are LOW and E3 is HIGH. This multiple enable function allows easy parallel expansion to a 1-of-32 (5 to 32 lines) decoder with just four &#8216;138 ICs and one inverter. The &#8216;138 can be used as an eight output demultiplexer by using one of the active LOW enable inputs as the data input and the remaining enable inputs as strobes. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of V<sub class=\"ph sub\">CC<\/sub>.<\/div>\n<p><strong><span style=\"color: #1b1919; font-size: 22px;\">Features and benefits<\/span><\/strong><\/p>\n<\/div>\n<div>\n<ul class=\"ul\">\n<li class=\"li\">Wide supply voltage range from 2.0 to 6.0 V<\/li>\n<li class=\"li\">CMOS low power dissipation<\/li>\n<li class=\"li\">High noise immunity<\/li>\n<li class=\"li\">Latch-up performance exceeds 100 mA per JESD 78 Class II Level B<\/li>\n<li class=\"li\">Demultiplexing capability<\/li>\n<li class=\"li\">Multiple input enable for easy expansion<\/li>\n<li class=\"li\">Ideal for memory chip select decoding<\/li>\n<li class=\"li\">Active LOW mutually exclusive outputs<\/li>\n<li class=\"li\">Input levels:\n<ul id=\"fb_74HC_HCT138__ul_0f01b554-281a-4661-9dee-63ef2df8dc04\" class=\"ul\">\n<li class=\"li\">For 74HC138: CMOS level<\/li>\n<li class=\"li\">For 74HCT138: TTL level<\/li>\n<\/ul>\n<\/li>\n<li class=\"li\">Complies with JEDEC standards:\n<ul id=\"fb_74HC_HCT138__ul_ob2_lqm_n4b\" class=\"ul\">\n<li class=\"li\">JESD8C (2.7 V to 3.6 V)<\/li>\n<li class=\"li\">JESD7A (2.0 V to 6.0 V)<\/li>\n<\/ul>\n<\/li>\n<li class=\"li\">ESD protection:\n<ul id=\"fb_74HC_HCT138__ul_d5de9d58-4390-411c-99b8-a6d79bf04a56\" class=\"ul\">\n<li class=\"li\">HBM JESD22-A114F exceeds 2000 V<\/li>\n<li class=\"li\">MM JESD22-A115-A exceeds 200 V<\/li>\n<\/ul>\n<\/li>\n<li class=\"li\">Multiple package options<\/li>\n<li class=\"li\">Specified from -40 \u00b0C to +85 \u00b0C and from -40 \u00b0C to +125 \u00b0C<\/li>\n<\/ul>\n<\/div>\n<p><strong>DOWNLOADS:<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/assets.nexperia.com\/documents\/data-sheet\/74HC_HCT138.pdf\" target=\"_blank\" rel=\"noopener\"><strong>Datasheet<\/strong><\/a><\/li>\n<\/ul>\n","protected":false},"featured_media":1191,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[36],"product_tag":[],"class_list":{"0":"post-1190","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-analog-logic-ics","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>74HC138D - SMD Electro<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/smdelectro.com\/index.php\/product\/74hc138d\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"74HC138D - SMD Electro\" \/>\n<meta property=\"og:description\" content=\"3-to-8 line decoder\/demultiplexer; inverting  The 74HC138; 74HCT138 decodes three binary weighted address inputs (A0, A1 and A2) to eight mutually exclusive outputs (Y0 to\u00a0Y7). The device features three enable inputs (E1,\u00a0E2 and E3). Every output will be HIGH unless\u00a0E1 and\u00a0E2 are LOW and E3 is HIGH. This multiple enable function allows easy parallel expansion to a 1-of-32 (5 to 32 lines) decoder with just four &#039;138 ICs and one inverter. The &#039;138 can be used as an eight output demultiplexer by using one of the active LOW enable inputs as the data input and the remaining enable inputs as strobes. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC. Features and benefits      Wide supply voltage range from 2.0 to 6.0 V  CMOS low power dissipation  High noise immunity  Latch-up performance exceeds 100 mA per JESD 78 Class II Level B  Demultiplexing capability  Multiple input enable for easy expansion  Ideal for memory chip select decoding  Active LOW mutually exclusive outputs  Input levels:   For 74HC138: CMOS level  For 74HCT138: TTL level    Complies with JEDEC standards:   JESD8C (2.7 V to 3.6 V)  JESD7A (2.0 V to 6.0 V)    ESD protection:   HBM JESD22-A114F exceeds 2000 V  MM JESD22-A115-A exceeds 200 V    Multiple package options  Specified from -40 \u00b0C to +85 \u00b0C and from -40 \u00b0C to +125 \u00b0C   DOWNLOADS:   Datasheet\" \/>\n<meta property=\"og:url\" content=\"https:\/\/smdelectro.com\/index.php\/product\/74hc138d\/\" \/>\n<meta property=\"og:site_name\" content=\"SMD Electro\" \/>\n<meta property=\"article:modified_time\" content=\"2022-08-16T22:59:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/smdelectro.com\/wp-content\/uploads\/2021\/09\/sot109-1_3d.png\" \/>\n\t<meta property=\"og:image:width\" content=\"480\" \/>\n\t<meta property=\"og:image:height\" content=\"320\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/smdelectro.com\\\/index.php\\\/product\\\/74hc138d\\\/\",\"url\":\"https:\\\/\\\/smdelectro.com\\\/index.php\\\/product\\\/74hc138d\\\/\",\"name\":\"74HC138D - 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SMD Electro","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/smdelectro.com\/index.php\/product\/74hc138d\/","og_locale":"en_US","og_type":"article","og_title":"74HC138D - SMD Electro","og_description":"3-to-8 line decoder\/demultiplexer; inverting  The 74HC138; 74HCT138 decodes three binary weighted address inputs (A0, A1 and A2) to eight mutually exclusive outputs (Y0 to\u00a0Y7). The device features three enable inputs (E1,\u00a0E2 and E3). Every output will be HIGH unless\u00a0E1 and\u00a0E2 are LOW and E3 is HIGH. This multiple enable function allows easy parallel expansion to a 1-of-32 (5 to 32 lines) decoder with just four '138 ICs and one inverter. The '138 can be used as an eight output demultiplexer by using one of the active LOW enable inputs as the data input and the remaining enable inputs as strobes. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC. 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