请登录

免费注册

首页购物车我的订单会员中心

联系客服

823711899

点击QQ咨询

400-618-9990

拨打电话咨询

购物车 0

上传BOM

产品分类

找货询价

QQ咨询

会员中心

购物车

技术支持

售后咨询

图片源于供应商或网络,实物可能存在差异,请以实物为准

CD74HC21M

数量

单价

总价

750+

¥ 4.149116

¥ 3111.837

显示更多 ▼

购买数量

总价金额：￥ 3111.837

加入购物车

立即购买

样品申购

详细描述：与门 IC 2 通道 14-SOIC

产品参数

产品属性	属性值
不同 V、最大 CL 时最大传播延迟	19ns @ 6V，50pF
供应商器件封装	14-SOIC
制造商	Texas Instruments
包装	管件
基本产品编号	74HC21
安装类型	表面贴装型
封装、外壳	14-SOIC（0.154"，3.90mm 宽）
工作温度	-55°C ~ 125°C
特性	-
电压 - 供电	2V ~ 6V
电流 - 输出高、低	5.2mA，5.2mA
电流 - 静态（最大值）	2 µA
电路数	2
系列	74HC
输入数	4
逻辑电平 - 低	0.5V ~ 1.8V
逻辑电平 - 高	1.5V ~ 4.2V
逻辑类型	与门
零件状态	停产

PDF描述：High Speed CMOS Logic Dual 4-Input AND Gate 高速CMOS逻辑双路4输入与门

产品概述

暂无产品概述

类似型号

CD74HC21M96

品牌：

Texas Instruments

封装：

￥0.000000 去搜索

cd74hc21m96

品牌：

texas instruments

封装：

￥43.795078 去搜索

CD74HC21M96

品牌：

Texas Instruments

封装：

14-SOIC（0.154"，3.90mm 宽）

￥5.040851 去搜索

CD74HC21MT

品牌：

Texas Instruments

封装：

￥0.000000 去搜索

CD74HC21MT

品牌：

Texas Instruments

封装：

14-SOIC（0.154"，3.90mm 宽）

￥3.312087 去搜索

CD74HC221E

品牌：

Texas Instruments

封装：

￥0.000000 去搜索

CD74HC221E

品牌：

Texas Instruments

封装：

16-DIP（0.300"，7.62mm）

￥8.924785 去搜索

CD74HC221E

品牌：

HAR

封装：

￥5.000000 去搜索

爆款推荐

5CEFA2F23C7N

品牌：

Altera

封装：

￥125.000000 详细信息

5CSEBA2U23C8N

品牌：

ALTERA

封装：

￥200.000000 详细信息

74LV165PW

品牌：

NEXPERIA

封装：

￥1.000000 详细信息

74LVC125APW

品牌：

NEXPERIA

封装：

￥0.450000 详细信息

AH3572-SA-7

品牌：

DIODES

封装：

￥1.300000 详细信息

AL1692-30BS7-13

品牌：

diodes

封装：

￥0.650000 详细信息

AL1692S-13

品牌：

diodes

封装：

￥0.420000 详细信息

AM26C31IDR

品牌：

封装：

￥0.750000 详细信息

购物指南

支付方式

配送服务

售后服务

发票须知

优惠券使用规则

代理产品

代理品牌

代理器件

特色服务

PCBA制造

国产品牌推荐

国产料号替代

质量保证

技术资料

行业资讯

关于我们

关于壹壹捌

联系我们

服务热线：400-618-9990

企业邮箱：sales@ic118.com

服务时间：周一至周六 8:30-17:30

壹壹捌官方微信号

PDF索引：

IC型号索引：

深圳网络警察报警平台

公共信息安全网络监察

经营性网站备案信息

不良信息举报中心

工商网监电子标识

全国公安机关备案

基本文件流程错误 SQL 调试用户

/www/wwwroot/www.ic72.com/public/index.php ( 0.79 KB )
/www/wwwroot/www.ic72.com/vendor/autoload.php ( 0.73 KB )
/www/wwwroot/www.ic72.com/vendor/composer/autoload_real.php ( 1.63 KB )
/www/wwwroot/www.ic72.com/vendor/composer/platform_check.php ( 1.01 KB )
/www/wwwroot/www.ic72.com/vendor/composer/ClassLoader.php ( 15.99 KB )
/www/wwwroot/www.ic72.com/vendor/composer/autoload_static.php ( 12.68 KB )
/www/wwwroot/www.ic72.com/vendor/ralouphie/getallheaders/src/getallheaders.php ( 1.60 KB )
/www/wwwroot/www.ic72.com/vendor/symfony/deprecation-contracts/function.php ( 0.99 KB )
/www/wwwroot/www.ic72.com/vendor/guzzlehttp/guzzle/src/functions_include.php ( 0.16 KB )
/www/wwwroot/www.ic72.com/vendor/guzzlehttp/guzzle/src/functions.php ( 5.55 KB )
/www/wwwroot/www.ic72.com/vendor/adbario/php-dot-notation/src/helpers.php ( 0.57 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-helper/src/helper.php ( 8.34 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/stubs/load_stubs.php ( 0.16 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/Exception.php ( 1.69 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/Facade.php ( 2.71 KB )
/www/wwwroot/www.ic72.com/vendor/yansongda/supports/src/Functions.php ( 1.53 KB )
/www/wwwroot/www.ic72.com/vendor/hyperf/engine/src/Functions.php ( 0.83 KB )
/www/wwwroot/www.ic72.com/vendor/symfony/polyfill-mbstring/bootstrap.php ( 8.26 KB )
/www/wwwroot/www.ic72.com/vendor/symfony/polyfill-mbstring/bootstrap80.php ( 9.77 KB )
/www/wwwroot/www.ic72.com/vendor/yansongda/artful/src/Functions.php ( 2.38 KB )
/www/wwwroot/www.ic72.com/vendor/phpseclib/phpseclib/phpseclib/bootstrap.php ( 0.72 KB )
/www/wwwroot/www.ic72.com/vendor/symfony/var-dumper/Resources/functions/dump.php ( 1.49 KB )
/www/wwwroot/www.ic72.com/vendor/yansongda/pay/src/Functions.php ( 19.32 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/App.php ( 14.29 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/Container.php ( 15.39 KB )
/www/wwwroot/www.ic72.com/vendor/psr/container/src/ContainerInterface.php ( 1.02 KB )
/www/wwwroot/www.ic72.com/app/provider.php ( 0.19 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/Http.php ( 6.04 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-helper/src/helper/Str.php ( 7.29 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/Env.php ( 4.52 KB )
/www/wwwroot/www.ic72.com/app/common.php ( 107.60 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/helper.php ( 18.47 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/Config.php ( 4.62 KB )
/www/wwwroot/www.ic72.com/config/api.php ( 0.59 KB )
/www/wwwroot/www.ic72.com/config/app.php ( 2.86 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/facade/Env.php ( 1.67 KB )
/www/wwwroot/www.ic72.com/config/cache.php ( 1.07 KB )
/www/wwwroot/www.ic72.com/config/console.php ( 0.37 KB )
/www/wwwroot/www.ic72.com/config/cookie.php ( 2.06 KB )
/www/wwwroot/www.ic72.com/config/database.php ( 5.02 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/facade/Config.php ( 1.37 KB )
/www/wwwroot/www.ic72.com/config/elasticsearch.php ( 0.16 KB )
/www/wwwroot/www.ic72.com/config/email.php ( 2.34 KB )
/www/wwwroot/www.ic72.com/config/filesystem.php ( 0.68 KB )
/www/wwwroot/www.ic72.com/config/lang.php ( 0.82 KB )
/www/wwwroot/www.ic72.com/config/log.php ( 1.35 KB )
/www/wwwroot/www.ic72.com/config/middleware.php ( 0.19 KB )
/www/wwwroot/www.ic72.com/config/payment.php ( 0.00 KB )
/www/wwwroot/www.ic72.com/config/route.php ( 1.54 KB )
/www/wwwroot/www.ic72.com/config/session.php ( 0.70 KB )
/www/wwwroot/www.ic72.com/config/trace.php ( 0.58 KB )
/www/wwwroot/www.ic72.com/config/view.php ( 0.96 KB )
/www/wwwroot/www.ic72.com/app/event.php ( 0.26 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/Event.php ( 6.97 KB )
/www/wwwroot/www.ic72.com/app/service.php ( 0.13 KB )
/www/wwwroot/www.ic72.com/app/AppService.php ( 0.44 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/Service.php ( 1.64 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/Lang.php ( 7.22 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/lang/zh-cn.php ( 13.27 KB )
/www/wwwroot/www.ic72.com/app/lang/zh-cn.php ( 0.08 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/initializer/Error.php ( 3.27 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/initializer/RegisterService.php ( 1.33 KB )
/www/wwwroot/www.ic72.com/vendor/services.php ( 0.17 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/service/PaginatorService.php ( 1.52 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/service/ValidateService.php ( 0.99 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/service/ModelService.php ( 1.75 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-multi-app/src/Service.php ( 1.08 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-trace/src/Service.php ( 0.77 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/Middleware.php ( 6.65 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/initializer/BootService.php ( 0.77 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/Paginator.php ( 11.71 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/Validate.php ( 46.61 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/Model.php ( 26.86 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/model/concern/Attribute.php ( 19.12 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/model/concern/RelationShip.php ( 26.44 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/model/concern/ModelEvent.php ( 2.58 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/model/concern/TimeStamp.php ( 5.69 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/model/concern/AutoWriteId.php ( 1.44 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/model/concern/Conversion.php ( 10.85 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-helper/src/contract/Arrayable.php ( 0.09 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-helper/src/contract/Jsonable.php ( 0.13 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/Db.php ( 2.88 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/DbManager.php ( 8.33 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/Log.php ( 6.27 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/Manager.php ( 3.92 KB )
/www/wwwroot/www.ic72.com/vendor/psr/log/src/LoggerTrait.php ( 2.69 KB )
/www/wwwroot/www.ic72.com/vendor/psr/log/src/LoggerInterface.php ( 2.68 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/Cache.php ( 4.91 KB )
/www/wwwroot/www.ic72.com/vendor/psr/simple-cache/src/CacheInterface.php ( 4.71 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-helper/src/helper/Arr.php ( 16.08 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/cache/driver/File.php ( 7.60 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/cache/Driver.php ( 8.17 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/contract/CacheHandlerInterface.php ( 1.99 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/Console.php ( 22.64 KB )
/www/wwwroot/www.ic72.com/app/Request.php ( 0.09 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/Request.php ( 54.27 KB )
/www/wwwroot/www.ic72.com/app/middleware.php ( 0.32 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/Pipeline.php ( 2.61 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-trace/src/TraceDebug.php ( 2.94 KB )
/www/wwwroot/www.ic72.com/app/middleware/AccessLog.php ( 2.59 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-multi-app/src/MultiApp.php ( 7.06 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/Route.php ( 23.25 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/route/RuleName.php ( 5.31 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/route/Domain.php ( 5.53 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/route/RuleGroup.php ( 13.56 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/route/Rule.php ( 23.18 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/route/RuleItem.php ( 9.19 KB )
/www/wwwroot/www.ic72.com/route/app.php ( 0.77 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/facade/Route.php ( 4.68 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/route/dispatch/Url.php ( 3.42 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/route/dispatch/Controller.php ( 6.61 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/route/Dispatch.php ( 6.07 KB )
/www/wwwroot/www.ic72.com/app/controller/Stock.php ( 91.08 KB )
/www/wwwroot/www.ic72.com/app/controller/Api.php ( 13.22 KB )
/www/wwwroot/www.ic72.com/app/BaseController.php ( 2.04 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/facade/Db.php ( 0.93 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/db/connector/Mysql.php ( 4.33 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/db/PDOConnection.php ( 51.60 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/db/Connection.php ( 8.79 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/db/ConnectionInterface.php ( 4.86 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/db/builder/Mysql.php ( 16.56 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/db/Builder.php ( 22.26 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/db/BaseBuilder.php ( 27.29 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/db/Query.php ( 15.19 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/db/BaseQuery.php ( 41.48 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/db/concern/TimeFieldQuery.php ( 7.43 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/db/concern/AggregateQuery.php ( 3.26 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/db/concern/ModelRelationQuery.php ( 19.29 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/db/concern/ParamsBind.php ( 3.66 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/db/concern/ResultOperation.php ( 6.98 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/db/concern/Transaction.php ( 2.77 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/db/concern/WhereQuery.php ( 18.79 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/db/concern/JoinAndViewQuery.php ( 6.96 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/db/concern/TableFieldInfo.php ( 2.46 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/log/driver/File.php ( 6.17 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/contract/LogHandlerInterface.php ( 0.86 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/log/Channel.php ( 3.88 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/event/LogRecord.php ( 0.86 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/facade/Cookie.php ( 1.48 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/Cookie.php ( 5.97 KB )
/www/wwwroot/www.ic72.com/app/model/Type.php ( 0.45 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/model/Collection.php ( 6.96 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-helper/src/Collection.php ( 16.48 KB )
/www/wwwroot/www.ic72.com/app/model/Cart.php ( 15.85 KB )
/www/wwwroot/www.ic72.com/app/model/Api.php ( 11.18 KB )
/www/wwwroot/www.ic72.com/app/controller/Index.php ( 24.67 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/facade/View.php ( 1.70 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/View.php ( 4.33 KB )
/www/wwwroot/www.ic72.com/app/model/Stock.php ( 74.26 KB )
/www/wwwroot/www.ic72.com/app/model/StockPra.php ( 0.71 KB )
/www/wwwroot/www.ic72.com/app/model/StockPrice.php ( 1.53 KB )
/www/wwwroot/www.ic72.com/app/model/StockUnit.php ( 0.78 KB )
/www/wwwroot/www.ic72.com/app/model/StockWarehouse.php ( 0.91 KB )
/www/wwwroot/www.ic72.com/app/model/Pdf.php ( 3.09 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/db/Raw.php ( 1.22 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-view/src/Think.php ( 8.00 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-template/src/Template.php ( 46.61 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-template/src/template/driver/File.php ( 2.41 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-template/src/template/contract/DriverInterface.php ( 0.86 KB )
/www/wwwroot/www.ic72.com/runtime/temp/995a9576ac15c40d17b616c95da56580.php ( 75.72 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/Response.php ( 8.65 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/response/Html.php ( 0.97 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-trace/src/Html.php ( 4.49 KB )

CONNECT:[ UseTime:0.000500s ] mysql:host=127.0.0.1;port=3306;dbname=ic72com;charset=utf8
SHOW FULL COLUMNS FROM `visit_log` [ RunTime:0.001518s ]
INSERT INTO `visit_log` SET `ip` = '216.73.217.72' , `useragent` = 'Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)' , `reffer` = '' , `host` = 'https://www.ic118.com/stock/detail_63793079.html' [ RunTime:0.047077s ]
SHOW FULL COLUMNS FROM `product_type` [ RunTime:0.001407s ]
SELECT `id`,`typeid`,`name`,`typestr` FROM `product_type` WHERE `id` NOT IN (11,12,13,14,15) AND `id` <= 750 [ RunTime:0.024427s ]
SHOW FULL COLUMNS FROM `o_cart` [ RunTime:0.001706s ]
SELECT COUNT(*) AS think_count FROM `o_cart` WHERE ( `userId` = 0 AND `visitIP` = '216.73.217.72' ) [ RunTime:0.047029s ]
SHOW FULL COLUMNS FROM `ad` [ RunTime:0.001336s ]
SELECT * FROM `ad` WHERE `isDisplay` = 1 [ RunTime:0.020515s ]
SHOW FULL COLUMNS FROM `stock` [ RunTime:0.001472s ]
SELECT `s`.*,`u`.`company`,`t`.`name` FROM `stock` `s` LEFT JOIN `user` `u` ON `u`.`id`=`s`.`userid` LEFT JOIN `product_type` `t` ON `t`.`id`=`s`.`categoryid` WHERE `s`.`id` = '63793079' LIMIT 1 [ RunTime:0.029200s ]
SHOW FULL COLUMNS FROM `stock_pra` [ RunTime:0.016305s ]
SELECT * FROM `stock_pra` WHERE `stockid` = 63793079 [ RunTime:0.035706s ]
SHOW FULL COLUMNS FROM `stock_price` [ RunTime:0.018211s ]
SELECT * FROM `stock_price` WHERE `stockid` = 63793079 ORDER BY `minOrder` ASC [ RunTime:0.035414s ]
SHOW FULL COLUMNS FROM `stock_unitquantity` [ RunTime:0.020088s ]
SELECT * FROM `stock_unitquantity` WHERE `stockid` = 63793079 ORDER BY `unit` DESC [ RunTime:0.014901s ]
SHOW FULL COLUMNS FROM `stock_warehousequantity` [ RunTime:0.034251s ]
SELECT * FROM `stock_warehousequantity` WHERE `stockid` = 63793079 [ RunTime:0.059456s ]
SELECT `name` FROM `product_type` WHERE `id` = 0 LIMIT 1 [ RunTime:0.041695s ]
SELECT * FROM `stock_price` WHERE `stockid` = 63793079 ORDER BY `minOrder` ASC [ RunTime:0.015705s ]
CONNECT:[ UseTime:0.000677s ] mysql:host=127.0.0.1;port=3306;dbname=ic72com_pdf;charset=utf8
select * from pdf where partno='CD74HC21M' and brandshort='Texas Instruments' limit 1 [ RunTime:0.054036s ]
SHOW FULL COLUMNS FROM `stock_product_overview` [ RunTime:0.002460s ]
SELECT `memo` FROM `stock_product_overview` WHERE `icName` = 'CD74HC21M' LIMIT 1 [ RunTime:0.152717s ]
SHOW FULL COLUMNS FROM `pdf` [ RunTime:0.002620s ]
SELECT `id`,`partno`,`note`,`note_cn` FROM `pdf` WHERE `partno` = 'CD74HC21M' LIMIT 1 [ RunTime:0.158368s ]
SHOW FULL COLUMNS FROM `stock_pra_lib` [ RunTime:0.002476s ]
SELECT `pra` FROM `stock_pra_lib` WHERE ( ( `partno` = 'CD74HC21M' OR `brand` LIKE 'Texas Instruments%' ) ) LIMIT 1 [ RunTime:0.085476s ]
SELECT `id` FROM `stock` WHERE `id` <> 63793079 AND `partno` = 'CD74HC21M' AND `lockUser` = 0 AND ( LOWER(brand) LIKE '%texas instruments%' ) [ RunTime:0.101585s ]
SELECT * FROM `stock_pra` WHERE `stockid` = 15329410 [ RunTime:0.100418s ]
SELECT `note` FROM `stock` WHERE `id` = 15329410 LIMIT 1 [ RunTime:0.058946s ]
SELECT `description` FROM `stock` WHERE `id` = 15329410 LIMIT 1 [ RunTime:0.024157s ]
SHOW FULL COLUMNS FROM `icreplace` [ RunTime:0.032791s ]
SELECT `r`.*,`b`.`brandshort`,`b`.`brandcn` FROM `icreplace` `r` LEFT JOIN `stock_brand` `b` ON `b`.`id`=`r`.`icbrandid` WHERE `r`.`partno` = 'CD74HC21M' ORDER BY `r`.`id` DESC LIMIT 5 [ RunTime:0.095466s ]
SELECT `id`,`code`,`imgurl`,`minOrderPrice`,`partno`,`brand`,`package` FROM `stock` WHERE `categoryid` = 0 AND ( `partno` > 'CD74HC21M' ) ORDER BY `partno` ASC LIMIT 8 [ RunTime:0.130318s ]
SELECT `id`,`code`,`imgurl`,`minOrderPrice`,`partno`,`brand`,`package` FROM `stock` WHERE `status` = 3 ORDER BY `partno` ASC LIMIT 8 [ RunTime:0.022629s ]

1.700218s

CD74HC21M

购买数量

总价金额： ￥ 3111.837

推荐替代

详细描述：与门 IC 2 通道 14-SOIC

产品参数

PDF描述：High Speed CMOS Logic Dual 4-Input AND Gate 高速CMOS逻辑双路4输入与门

产品概述

类似型号

爆款推荐

总价金额：￥ 3111.837