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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

SN74LS191DR

数量

单价

总价

¥ 12.891356

10+

¥ 9.420607

¥ 94.20607

25+

¥ 8.547961

¥ 213.699025

100+

¥ 7.586067

¥ 758.6067

250+

¥ 7.128259

¥ 1782.06475

500+

¥ 6.982488

¥ 3491.244

1000+

¥ 6.587235

¥ 6587.235

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购买数量

总价金额：￥ 12.891356

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样品申购

产品参数

产品属性	属性值
商品目录	计数器/分频器
逻辑类型	2分频
计数方向	向上计数器
向下计数器
工作电压	4.75V~5.25V
元件数	1
触发沿	上升沿
复位方式	-
计时方式	同步
计数速率	25MHz
工作温度	0℃~+70℃

PDF描述：SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL

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CONNECT:[ UseTime:0.000593s ] mysql:host=127.0.0.1;port=3306;dbname=ic72com_pdf;charset=utf8
select * from pdf where partno='SN74LS191DR' and brandshort='Texas Instruments' limit 1 [ RunTime:0.004972s ]
SHOW FULL COLUMNS FROM `stock_product_overview` [ RunTime:0.001419s ]
SELECT `memo` FROM `stock_product_overview` WHERE `icName` = 'SN74LS191DR' LIMIT 1 [ RunTime:0.000427s ]
SHOW FULL COLUMNS FROM `pdf` [ RunTime:0.001203s ]
SELECT `id`,`partno`,`note`,`note_cn` FROM `pdf` WHERE `partno` = 'SN74LS191DR' LIMIT 1 [ RunTime:0.000419s ]
SHOW FULL COLUMNS FROM `stock_pra_lib` [ RunTime:0.002943s ]
SELECT `pra` FROM `stock_pra_lib` WHERE ( ( `partno` = 'SN74LS191DR' OR `brand` LIKE 'Texas Instruments%' ) ) LIMIT 1 [ RunTime:0.003028s ]
SHOW FULL COLUMNS FROM `icreplace` [ RunTime:0.001376s ]
SELECT `r`.*,`b`.`brandshort`,`b`.`brandcn` FROM `icreplace` `r` LEFT JOIN `stock_brand` `b` ON `b`.`id`=`r`.`icbrandid` WHERE `r`.`partno` = 'SN74LS191DR' ORDER BY `r`.`id` DESC LIMIT 5 [ RunTime:0.000619s ]
SELECT `id`,`code`,`imgurl`,`minOrderPrice`,`partno`,`brand`,`package` FROM `stock` WHERE `categoryid` = 0 AND ( `partno` > 'SN74LS191DR' ) ORDER BY `partno` ASC LIMIT 8 [ RunTime:0.019126s ]
SELECT `id`,`code`,`imgurl`,`minOrderPrice`,`partno`,`brand`,`package` FROM `stock` WHERE `status` = 3 ORDER BY `partno` ASC LIMIT 8 [ RunTime:0.000779s ]

0.246836s

SN74LS191DR

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总价金额： ￥ 12.891356

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PDF描述：SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL

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总价金额：￥ 12.891356