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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

CD74HC688E

数量

单价

总价

¥ 16.444743

20+

¥ 11.292332

¥ 225.84664

40+

¥ 10.598182

¥ 423.92728

100+

¥ 9.865193

¥ 986.5193

260+

¥ 9.277562

¥ 2412.16612

500+

¥ 8.957179

¥ 4478.5895

1000+

¥ 8.676131

¥ 8676.131

2500+

¥ 8.379382

¥ 20948.455

5000+

¥ 8.200555

¥ 41002.775

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购买数量

总价金额：￥ 16.444743

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样品申购

详细描述：幅值比较器钻头低有效输出 A=B 20-PDIP

产品参数

产品属性	属性值
不同 V、最大 CL 时最大传播延迟	29ns @ 6V，50pF
位数	8
供应商器件封装	20-PDIP
制造商	Texas Instruments
包装	管件
基本产品编号	74HC688
安装类型	通孔
封装、外壳	20-DIP（0.300"，7.62mm）
工作温度	-55°C ~ 125°C
电压 - 供电	2V ~ 6V
电流 - 输出高、低	5.2mA，5.2mA
电流 - 静态 (Iq)	8 µA
类型	身份比较器
系列	74HC
输出	低有效
输出功能	A=B
零件状态	在售

PDF描述：High Speed CMOS Logic 8-Bit Magnitude Comparator 高速CMOS逻辑8位幅度比较

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CONNECT:[ UseTime:0.001803s ] mysql:host=127.0.0.1;port=3306;dbname=ic72com;charset=utf8
SHOW FULL COLUMNS FROM `visit_log` [ RunTime:0.001678s ]
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SELECT `id`,`typeid`,`name`,`typestr` FROM `product_type` WHERE `id` NOT IN (11,12,13,14,15) AND `id` <= 750 [ RunTime:0.000752s ]
SHOW FULL COLUMNS FROM `o_cart` [ RunTime:0.003194s ]
SELECT COUNT(*) AS think_count FROM `o_cart` WHERE ( `userId` = 0 AND `visitIP` = '216.73.216.133' ) [ RunTime:0.008163s ]
SHOW FULL COLUMNS FROM `ad` [ RunTime:0.002800s ]
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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` = '63963762' LIMIT 1 [ RunTime:0.014070s ]
SHOW FULL COLUMNS FROM `stock_pra` [ RunTime:0.006865s ]
SELECT * FROM `stock_pra` WHERE `stockid` = 63963762 [ RunTime:0.007840s ]
SHOW FULL COLUMNS FROM `stock_price` [ RunTime:0.004631s ]
SELECT * FROM `stock_price` WHERE `stockid` = 63963762 ORDER BY `minOrder` ASC [ RunTime:0.009570s ]
SHOW FULL COLUMNS FROM `stock_unitquantity` [ RunTime:0.008974s ]
SELECT * FROM `stock_unitquantity` WHERE `stockid` = 63963762 ORDER BY `unit` DESC [ RunTime:0.005110s ]
SHOW FULL COLUMNS FROM `stock_warehousequantity` [ RunTime:0.001759s ]
SELECT * FROM `stock_warehousequantity` WHERE `stockid` = 63963762 [ RunTime:0.004061s ]
SELECT `name` FROM `product_type` WHERE `id` = 0 LIMIT 1 [ RunTime:0.003182s ]
SELECT * FROM `stock_price` WHERE `stockid` = 63963762 ORDER BY `minOrder` ASC [ RunTime:0.002569s ]
CONNECT:[ UseTime:0.000610s ] mysql:host=127.0.0.1;port=3306;dbname=ic72com_pdf;charset=utf8
select * from pdf where partno='CD74HC688E' and brandshort='Texas Instruments' limit 1 [ RunTime:0.012270s ]
SHOW FULL COLUMNS FROM `stock_product_overview` [ RunTime:0.001455s ]
SELECT `memo` FROM `stock_product_overview` WHERE `icName` = 'CD74HC688E' LIMIT 1 [ RunTime:0.009360s ]
SHOW FULL COLUMNS FROM `pdf` [ RunTime:0.002760s ]
SELECT `id`,`partno`,`note`,`note_cn` FROM `pdf` WHERE `partno` = 'CD74HC688E' LIMIT 1 [ RunTime:0.003042s ]
SHOW FULL COLUMNS FROM `stock_pra_lib` [ RunTime:0.002188s ]
SELECT `pra` FROM `stock_pra_lib` WHERE ( ( `partno` = 'CD74HC688E' OR `brand` LIKE 'Texas Instruments%' ) ) LIMIT 1 [ RunTime:0.005775s ]
SELECT `id` FROM `stock` WHERE `id` <> 63963762 AND `partno` = 'CD74HC688E' AND `lockUser` = 0 AND ( LOWER(brand) LIKE '%texas instruments%' ) [ RunTime:0.006561s ]
SELECT * FROM `stock_pra` WHERE `stockid` = 16089631 [ RunTime:0.014226s ]
SELECT `note` FROM `stock` WHERE `id` = 16089631 LIMIT 1 [ RunTime:0.006987s ]
SELECT `description` FROM `stock` WHERE `id` = 16089631 LIMIT 1 [ RunTime:0.007343s ]
SHOW FULL COLUMNS FROM `icreplace` [ RunTime:0.003173s ]
SELECT `r`.*,`b`.`brandshort`,`b`.`brandcn` FROM `icreplace` `r` LEFT JOIN `stock_brand` `b` ON `b`.`id`=`r`.`icbrandid` WHERE `r`.`partno` = 'CD74HC688E' ORDER BY `r`.`id` DESC LIMIT 5 [ RunTime:0.002455s ]
SELECT `id`,`code`,`imgurl`,`minOrderPrice`,`partno`,`brand`,`package` FROM `stock` WHERE `categoryid` = 0 AND ( `partno` > 'CD74HC688E' ) ORDER BY `partno` ASC LIMIT 8 [ RunTime:0.014899s ]
SELECT `id`,`code`,`imgurl`,`minOrderPrice`,`partno`,`brand`,`package` FROM `stock` WHERE `status` = 3 ORDER BY `partno` ASC LIMIT 8 [ RunTime:0.000475s ]

0.445688s

CD74HC688E

购买数量

总价金额： ￥ 16.444743

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详细描述：幅值比较器 钻头 低有效 输出 A=B 20-PDIP

产品参数

PDF描述：High Speed CMOS Logic 8-Bit Magnitude Comparator 高速CMOS逻辑8位幅度比较

产品概述

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总价金额：￥ 16.444743

详细描述：幅值比较器钻头低有效输出 A=B 20-PDIP