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图片源于供应商或网络,实物可能存在差异,请以实物为准

SN74HC257N

数量

单价

总价

¥ 11.403892

10+

¥ 8.255426

¥ 82.55426

25+

¥ 7.473681

¥ 186.842025

100+

¥ 6.618389

¥ 661.8389

250+

¥ 6.210328

¥ 1552.582

500+

¥ 5.964070

¥ 2982.035

1000+

¥ 5.761527

¥ 5761.527

2500+

¥ 5.547580

¥ 13868.95

5000+

¥ 5.418667

¥ 27093.335

显示更多 ▼

购买数量

总价金额：￥ 11.403892

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样品申购

详细描述：多路复用器 4 x 2：1 16-PDIP

产品参数

产品属性	属性值
供应商器件封装	16-PDIP
供电电压源	单电源
制造商	Texas Instruments
包装	管件
基本产品编号	74HC257
安装类型	通孔
封装、外壳	16-DIP（0.300"，7.62mm）
工作温度	-40°C ~ 85°C
独立电路	1
电压 - 供电	2V ~ 6V
电流 - 输出高、低	7.8mA，7.8mA
电路	4 x 2:1
类型	多路复用器
系列	74HC
零件状态	在售

PDF描述：多路复用器 4 x 2：1 16-PDIP

产品概述

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CONNECT:[ UseTime:0.001121s ] mysql:host=127.0.0.1;port=3306;dbname=ic72com;charset=utf8
SHOW FULL COLUMNS FROM `visit_log` [ RunTime:0.003046s ]
INSERT INTO `visit_log` SET `ip` = '216.73.216.31' , `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_70687063.html' [ RunTime:0.013612s ]
SHOW FULL COLUMNS FROM `product_type` [ RunTime:0.002042s ]
SELECT `id`,`typeid`,`name`,`typestr` FROM `product_type` WHERE `id` NOT IN (11,12,13,14,15) AND `id` <= 750 [ RunTime:0.002405s ]
SHOW FULL COLUMNS FROM `o_cart` [ RunTime:0.003080s ]
SELECT COUNT(*) AS think_count FROM `o_cart` WHERE ( `userId` = 0 AND `visitIP` = '216.73.216.31' ) [ RunTime:0.001117s ]
SHOW FULL COLUMNS FROM `ad` [ RunTime:0.006266s ]
SELECT * FROM `ad` WHERE `isDisplay` = 1 [ RunTime:0.001086s ]
SHOW FULL COLUMNS FROM `stock` [ RunTime:0.003433s ]
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` = '70687063' LIMIT 1 [ RunTime:0.001674s ]
SHOW FULL COLUMNS FROM `stock_pra` [ RunTime:0.002663s ]
SELECT * FROM `stock_pra` WHERE `stockid` = 70687063 [ RunTime:0.000865s ]
SHOW FULL COLUMNS FROM `stock_price` [ RunTime:0.002262s ]
SELECT * FROM `stock_price` WHERE `stockid` = 70687063 ORDER BY `minOrder` ASC [ RunTime:0.001861s ]
SHOW FULL COLUMNS FROM `stock_unitquantity` [ RunTime:0.002328s ]
SELECT * FROM `stock_unitquantity` WHERE `stockid` = 70687063 ORDER BY `unit` DESC [ RunTime:0.000917s ]
SHOW FULL COLUMNS FROM `stock_warehousequantity` [ RunTime:0.004848s ]
SELECT * FROM `stock_warehousequantity` WHERE `stockid` = 70687063 [ RunTime:0.000970s ]
SELECT `name` FROM `product_type` WHERE `id` = 0 LIMIT 1 [ RunTime:0.000664s ]
SELECT * FROM `stock_price` WHERE `stockid` = 70687063 ORDER BY `minOrder` ASC [ RunTime:0.000624s ]
CONNECT:[ UseTime:0.000644s ] mysql:host=127.0.0.1;port=3306;dbname=ic72com_pdf;charset=utf8
select * from pdf where partno='SN74HC257N' and brandshort='Texas Instruments' limit 1 [ RunTime:0.014847s ]
SHOW FULL COLUMNS FROM `stock_product_overview` [ RunTime:0.002795s ]
SELECT `memo` FROM `stock_product_overview` WHERE `icName` = 'SN74HC257N' LIMIT 1 [ RunTime:0.001240s ]
SHOW FULL COLUMNS FROM `pdf` [ RunTime:0.002887s ]
SELECT `id`,`partno`,`note`,`note_cn` FROM `pdf` WHERE `partno` = 'SN74HC257N' LIMIT 1 [ RunTime:0.001196s ]
SHOW FULL COLUMNS FROM `stock_pra_lib` [ RunTime:0.002601s ]
SELECT `pra` FROM `stock_pra_lib` WHERE ( ( `partno` = 'SN74HC257N' OR `brand` LIKE 'Texas Instruments%' ) ) LIMIT 1 [ RunTime:0.001585s ]
SELECT `id` FROM `stock` WHERE `id` <> 70687063 AND `partno` = 'SN74HC257N' AND `lockUser` = 0 AND ( LOWER(brand) LIKE '%texas instruments%' ) [ RunTime:0.004244s ]
SELECT * FROM `stock_pra` WHERE `stockid` = 15330765 [ RunTime:0.002040s ]
SELECT `note` FROM `stock` WHERE `id` = 15330765 LIMIT 1 [ RunTime:0.000868s ]
SELECT `description` FROM `stock` WHERE `id` = 15330765 LIMIT 1 [ RunTime:0.000711s ]
SHOW FULL COLUMNS FROM `icreplace` [ RunTime:0.003382s ]
SELECT `r`.*,`b`.`brandshort`,`b`.`brandcn` FROM `icreplace` `r` LEFT JOIN `stock_brand` `b` ON `b`.`id`=`r`.`icbrandid` WHERE `r`.`partno` = 'SN74HC257N' ORDER BY `r`.`id` DESC LIMIT 5 [ RunTime:0.001872s ]
SELECT `id`,`code`,`imgurl`,`minOrderPrice`,`partno`,`brand`,`package` FROM `stock` WHERE `categoryid` = 0 AND ( `partno` > 'SN74HC257N' ) ORDER BY `partno` ASC LIMIT 8 [ RunTime:0.010949s ]
SELECT `id`,`code`,`imgurl`,`minOrderPrice`,`partno`,`brand`,`package` FROM `stock` WHERE `status` = 3 ORDER BY `partno` ASC LIMIT 8 [ RunTime:0.001562s ]

0.806716s

SN74HC257N

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总价金额： ￥ 11.403892

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详细描述：多路复用器 4 x 2：1 16-PDIP

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PDF描述： 多路复用器 4 x 2：1 16-PDIP

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总价金额：￥ 11.403892

PDF描述：多路复用器 4 x 2：1 16-PDIP