CD74HC4002E,1739941,或非门, HC系列, 4输入, 5.2 mA, 2V至6V, DIP-14,TEXAS INSTRUMENTS
laird代理商
专业代理销售laird(莱尔德)全系列产品-新加坡2号仓库
美国1号分类选型新加坡2号分类选型英国10号分类选型英国2号分类选型日本5号分类选型

在本站结果里搜索:    
热门搜索词:28B0500-100  IRF9540  保险丝  amphenol  4.7μF 63V 5mm  P沟道 8ohm SOT-23  2581138

CD74HC4002E - 

或非门, HC系列, 4输入, 5.2 mA, 2V至6V, DIP-14

TEXAS INSTRUMENTS CD74HC4002E
声明:图片仅供参考,请以实物为准!
制造商产品编号:
CD74HC4002E
仓库库存编号:
1739941
技术数据表:
(EN)
订购热线: 400-900-3095  0755-21000796, QQ:800152669, Email:sales@szcwdz.com
您可通过官网直接下单选定型号并完成支付(请确保型号准确),销售团队将同步审核;线下合同交易模式同步开放,具体流程请联系我司业务代表。
  美国1号仓库    仓库直销,订单金额100元起订,满300元含运,满500元含税运,有单就有优惠,量大更优惠,支持原厂订货
型号 制造商 描述 实时库存 起订量 实时单价
(含税)
货期
(工作日)
操作
CD74HC4002E
库存编号:296-25987-5-ND
Texas Instruments IC GATE NOR 2CH 4-INP 14DIP896
1起订
1+
10+
25+
100+
250+
500+
1000+
2500+
5000+
¥7.6
¥5.34
¥7.6
¥4.18
¥3.88
¥3.71
¥3.56
¥3.41
¥3.32
6-10天购买 购买
,"cvcgetWeb":["c3JjPTEmUE49Mjk2LTI1OTg3LTUtTkQ="],"cvcModel":["CD74HC4002E"],"cvcBrand":[" Texas Instruments "],"cvcNumberAll":["1,10,25,100,250,500,1000,2500,5000,"],"cvcPriceAll":["7.6,5.34,7.6,4.18,3.88,3.71,3.56,3.41,3.32,"],"maxnum":["896"],"minnum":["1"],"mytime":["6-10天"],"haveiscanbuy":["yes"],

查看资料
CD74HC4002E
库存编号:2156-CD74HC4002E-HC-ND
Rochester Electronics LLC IC GATE NOR 2CH 4-INP 14DIP0
1094起订
1094+
¥3.37
6-10天询价 询价
查看资料
  美国2号仓库    仓库直销,订单金额100元起订,满300元含运,满500元含税运,有单就有优惠,量大更优惠,支持原厂订货
型号 制造商 描述 实时库存 起订量 实时单价
(含税)
货期
(工作日)
操作
CD74HC4002E
库存编号:595-CD74HC4002E
Texas Instruments Logic Gates Hi-Speed CMOS Logic Dual 4-Inp NOR Gate2007
1起订
1+
10+
25+
100+
250+
2500+
10000+
20000+
¥7.21
¥5.06
¥4.53
¥3.95
¥3.51
¥3.15
¥3.03
¥3.02
6-10天购买 购买
,"cvcgetWeb":["c3JjPTMmUE49NTk1LUNENzRIQzQwMDJF"],"cvcModel":["CD74HC4002E"],"cvcBrand":[" Texas Instruments "],"cvcNumberAll":["1,10,25,100,250,2500,10000,20000,"],"cvcPriceAll":["7.21,5.06,4.53,3.95,3.51,3.15,3.03,3.02,"],"maxnum":["2007"],"minnum":["1"],"mytime":["6-10天"],"haveiscanbuy":["yes"],
  日本1号仓库    仓库直销,订单金额100元起订,满300元含运,满500元含税运,有单就有优惠,量大更优惠,支持原厂订货
型号 制造商 描述 实时库存 起订量 实时单价
(含税)
货期
(工作日)
操作
CD74HC4002E
库存编号:CD74HC4002E
Texas Instruments Semiconductors985
5起订
5+
10+
50+
100+
200+
500+
¥11.74
¥6.21
¥5.28
¥5.04
¥4.76
¥4.46
1-2周购买 购买
,"cvcgetWeb":["c3JjPTkmUE49Q0Q3NEhDNDAwMkU="],"cvcModel":["CD74HC4002E"],"cvcBrand":[" Texas Instruments "],"cvcNumberAll":["5,10,50,100,200,500,"],"cvcPriceAll":["11.74,6.21,5.28,5.04,4.76,4.46,"],"maxnum":["985"],"minnum":["5"],"mytime":["1-2周"],"haveiscanbuy":["yes"],
  日本2号仓库    仓库直销,订单金额100元起订,满300元含运,满500元含税运,有单就有优惠,量大更优惠,支持原厂订货
型号 制造商 描述 实时库存 起订量 实时单价
(含税)
货期
(工作日)
操作
CD74HC4002E
库存编号:85975234
Texas Instruments NOR Gate 2-Element 4-IN CMOS 14-Pin PDIP Tube0
1338起订
1338+
¥3.77
1-2周询价 询价
CD74HC4002E
库存编号:85976006
Texas Instruments NOR Gate 2-Element 4-IN CMOS 14-Pin PDIP Tube0
1338起订
1338+
¥3.77
1-2周询价 询价
CD74HC4002E
库存编号:85972333
Texas Instruments NOR Gate 2-Element 4-IN CMOS 14-Pin PDIP Tube0
1338起订
1338+
¥3.77
1-2周询价 询价
  英国7号仓库    仓库直销,订单金额100元起订,满300元含运,满500元含税运,有单就有优惠,量大更优惠,支持原厂订货
型号 制造商 描述 实时库存 起订量 实时单价
(含税)
货期
(工作日)
操作
CD74HC4002E
库存编号:CD74HC4002E
Texas Instruments IC: digital, NOR, Ch: 2, IN: 4, THT, DIP14, 2÷6VDC, -55÷125°C, HC261
1起订
1+
5+
25+
100+
250+
¥10.27
¥7.94
¥6.87
¥6.11
¥4.96
1-3周购买 购买
,"cvcgetWeb":["c3JjPTIzJlBOPUNENzRIQzQwMDJF"],"cvcModel":["CD74HC4002E"],"cvcBrand":[" Texas Instruments "],"cvcNumberAll":["1,5,25,100,250,"],"cvcPriceAll":["10.27,7.94,6.87,6.11,4.96,"],"maxnum":["261"],"minnum":["1"],"mytime":["1-3周"],"haveiscanbuy":["yes"],
  英国8号仓库    仓库直销,订单金额100元起订,满300元含运,满500元含税运,有单就有优惠,量大更优惠,支持原厂订货
型号 制造商 描述 实时库存 起订量 实时单价
(含税)
货期
(工作日)
操作
CD74HC4002EE4 Texas Instruments HC/UH SERIES, DUAL 4-INPUT NOR GATE, PDIP14 (Also Known As: CD74HC4002E)98
1起订
1+
12+
54+
¥8.23
¥6.86
¥5.49
1-3周购买 购买
,"cvcgetWeb":["c3JjPTI0JlBOPQ=="],"cvcModel":["CD74HC4002EE4"],"cvcBrand":[" Texas Instruments "],"cvcNumberAll":["1,12,54,"],"cvcPriceAll":["8.23,6.86,5.49,"],"maxnum":["98"],"minnum":["1"],"mytime":["1-3周"],
CD74HC4002EE4 Texas Instruments HC/UH SERIES, DUAL 4-INPUT NOR GATE, PDIP1498
1起订
1+
12+
54+
¥8.23
¥6.86
¥5.49
1-3周购买 购买
,"cvcgetWeb":["c3JjPTI0JlBOPQ=="],"cvcModel":["CD74HC4002EE4"],"cvcBrand":[" Texas Instruments "],"cvcNumberAll":["1,12,54,"],"cvcPriceAll":["8.23,6.86,5.49,"],"maxnum":["98"],"minnum":["1"],"mytime":["1-3周"],
CD74HC4002E Texas Instruments HC/UH SERIES, DUAL 4-INPUT NOR GATE, PDIP1457
1起订
1+
7+
29+
¥16.15
¥12.92
¥9.69
1-3周购买 购买
,"cvcgetWeb":["c3JjPTI0JlBOPQ=="],"cvcModel":["CD74HC4002E"],"cvcBrand":[" Texas Instruments "],"cvcNumberAll":["1,7,29,"],"cvcPriceAll":["16.15,12.92,9.69,"],"maxnum":["57"],"minnum":["1"],"mytime":["1-3周"],"haveiscanbuy":["yes"],
CD74HC4002E Harris Semiconductor HC/UH SERIES, DUAL 4-INPUT NOR GATE, PDIP1430
1起订
1+
7+
29+
¥16.15
¥12.92
¥9.69
1-3周购买 购买
,"cvcgetWeb":["c3JjPTI0JlBOPQ=="],"cvcModel":["CD74HC4002E"],"cvcBrand":[" Harris Semiconductor "],"cvcNumberAll":["1,7,29,"],"cvcPriceAll":["16.15,12.92,9.69,"],"maxnum":["30"],"minnum":["1"],"mytime":["1-3周"],"haveiscanbuy":["yes"],
CD74HC4002E Texas Instruments HC/UH SERIES, DUAL 4-INPUT NOR GATE, PDIP1425
1起订
1+
10+
¥9.69
¥8.08
1-3周购买 购买
,"cvcgetWeb":["c3JjPTI0JlBOPQ=="],"cvcModel":["CD74HC4002E"],"cvcBrand":[" Texas Instruments "],"cvcNumberAll":["1,10,"],"cvcPriceAll":["9.69,8.08,"],"maxnum":["25"],"minnum":["1"],"mytime":["1-3周"],"haveiscanbuy":["yes"],
CD74HC4002EX Harris Semiconductor IC,LOGIC GATE,DUAL 4-INPUT NOR,HC-CMOS,DIP,14PIN,PLASTIC23
1起订
1+
9+
¥12.07
¥10.06
1-3周购买 购买
,"cvcgetWeb":["c3JjPTI0JlBOPQ=="],"cvcModel":["CD74HC4002EX"],"cvcBrand":[" Harris Semiconductor "],"cvcNumberAll":["1,9,"],"cvcPriceAll":["12.07,10.06,"],"maxnum":["23"],"minnum":["1"],"mytime":["1-3周"],
CD74HC4002E Texas Instruments HC/UH SERIES, DUAL 4-INPUT NOR GATE, PDIP144
1起订
1+
¥12.81
1-3周购买 购买
,"cvcgetWeb":["c3JjPTI0JlBOPQ=="],"cvcModel":["CD74HC4002E"],"cvcBrand":[" Texas Instruments "],"cvcNumberAll":["1,"],"cvcPriceAll":["12.81,"],"maxnum":["4"],"minnum":["1"],"mytime":["1-3周"],"haveiscanbuy":["yes"],

CD74HC4002E产品信息

  逻辑系列/标号  74HC4002  
  逻辑类型  或非  
  输出电流  5.2mA  
  输入数  4  
  电源电压最小值  2V  
  电源电压最大值  6V  
  封装类型  DIP  
  针脚数  14引脚  
  逻辑芯片系列  74HC  
  逻辑芯片标号  744002  
  工作温度最小值  -55°C  
  工作温度最高值  125°C  
  封装  每个  
  产品范围  -  
  汽车质量标准  -  
  MSL  MSL 1 -无限制  
关键词         

CD74HC4002E相关搜索

逻辑系列/标号 74HC4002  TEXAS INSTRUMENTS 逻辑系列/标号 74HC4002  逻辑门与反相器 逻辑系列/标号 74HC4002  TEXAS INSTRUMENTS 逻辑门与反相器 逻辑系列/标号 74HC4002   逻辑类型 或非  TEXAS INSTRUMENTS 逻辑类型 或非  逻辑门与反相器 逻辑类型 或非  TEXAS INSTRUMENTS 逻辑门与反相器 逻辑类型 或非   输出电流 5.2mA  TEXAS INSTRUMENTS 输出电流 5.2mA  逻辑门与反相器 输出电流 5.2mA  TEXAS INSTRUMENTS 逻辑门与反相器 输出电流 5.2mA   输入数 4  TEXAS INSTRUMENTS 输入数 4  逻辑门与反相器 输入数 4  TEXAS INSTRUMENTS 逻辑门与反相器 输入数 4   电源电压最小值 2V  TEXAS INSTRUMENTS 电源电压最小值 2V  逻辑门与反相器 电源电压最小值 2V  TEXAS INSTRUMENTS 逻辑门与反相器 电源电压最小值 2V   电源电压最大值 6V  TEXAS INSTRUMENTS 电源电压最大值 6V  逻辑门与反相器 电源电压最大值 6V  TEXAS INSTRUMENTS 逻辑门与反相器 电源电压最大值 6V   封装类型 DIP  TEXAS INSTRUMENTS 封装类型 DIP  逻辑门与反相器 封装类型 DIP  TEXAS INSTRUMENTS 逻辑门与反相器 封装类型 DIP   针脚数 14引脚  TEXAS INSTRUMENTS 针脚数 14引脚  逻辑门与反相器 针脚数 14引脚  TEXAS INSTRUMENTS 逻辑门与反相器 针脚数 14引脚   逻辑芯片系列 74HC  TEXAS INSTRUMENTS 逻辑芯片系列 74HC  逻辑门与反相器 逻辑芯片系列 74HC  TEXAS INSTRUMENTS 逻辑门与反相器 逻辑芯片系列 74HC   逻辑芯片标号 744002  TEXAS INSTRUMENTS 逻辑芯片标号 744002  逻辑门与反相器 逻辑芯片标号 744002  TEXAS INSTRUMENTS 逻辑门与反相器 逻辑芯片标号 744002   工作温度最小值 -55°C  TEXAS INSTRUMENTS 工作温度最小值 -55°C  逻辑门与反相器 工作温度最小值 -55°C  TEXAS INSTRUMENTS 逻辑门与反相器 工作温度最小值 -55°C   工作温度最高值 125°C  TEXAS INSTRUMENTS 工作温度最高值 125°C  逻辑门与反相器 工作温度最高值 125°C  TEXAS INSTRUMENTS 逻辑门与反相器 工作温度最高值 125°C   封装 每个  TEXAS INSTRUMENTS 封装 每个  逻辑门与反相器 封装 每个  TEXAS INSTRUMENTS 逻辑门与反相器 封装 每个   产品范围 -  TEXAS INSTRUMENTS 产品范围 -  逻辑门与反相器 产品范围 -  TEXAS INSTRUMENTS 逻辑门与反相器 产品范围 -   汽车质量标准 -  TEXAS INSTRUMENTS 汽车质量标准 -  逻辑门与反相器 汽车质量标准 -  TEXAS INSTRUMENTS 逻辑门与反相器 汽车质量标准 -   MSL MSL 1 -无限制  TEXAS INSTRUMENTS MSL MSL 1 -无限制  逻辑门与反相器 MSL MSL 1 -无限制  TEXAS INSTRUMENTS 逻辑门与反相器 MSL MSL 1 -无限制  
参考价格及参考库存
  美国1号仓库    仓库直销,订单金额100元起订,满300元含运,满500元含税运,有单就有优惠,量大更优惠,支持原厂订货
型号 制造商 描述 操作
CD74HC4002E
[更多]
Texas Instruments

IC GATE NOR 2CH 4-INP 14-DIP

RoHS: Compliant | pbFree: Yes

搜索
查看资料
CD74HC4002EG4
[更多]
Texas Instruments

IC GATE NOR 2CH 4-INP 14-DIP

RoHS: Compliant | pbFree: Yes

搜索
查看资料
  美国2号仓库    仓库直销,订单金额100元起订,满300元含运,满500元含税运,有单就有优惠,量大更优惠,支持原厂订货
型号 制造商 描述 操作
CD74HC4002E
[更多]
Texas Instruments

Logic Gates Hi-Speed CMOS Logic Dual 4-Inp NOR Gate

RoHS: Compliant

搜索
CD74HC4002EE4
[更多]
Texas Instruments

Logic Gates Hi-Speed CMOS Logic Dual 4-Inp NOR Gate

RoHS: Compliant

搜索
  日本1号仓库    仓库直销,订单金额100元起订,满300元含运,满500元含税运,有单就有优惠,量大更优惠,支持原厂订货
型号 制造商 描述 操作
CD74HC4002E
[更多]
Texas Instruments

NOR Gate 2-Element 4-IN CMOS 14-Pin PDIP Tube

RoHS: Compliant

搜索
  美国3号仓库    仓库直销,订单金额100元起订,满300元含运,满500元含税运,有单就有优惠,量大更优惠,支持原厂订货
型号 制造商 描述 操作
CD74HC4002E
[更多]
Texas Instruments

NOR Gate 2-Element 4-IN CMOS 14-Pin PDIP Tube - Bulk (Alt: CD74HC4002E)

RoHS: Compliant

搜索
CD74HC4002E
[更多]
Texas Instruments

NOR Gate 2-Element 4-IN CMOS 14-Pin PDIP Tube (Alt: CD74HC4002E)

RoHS: Compliant

搜索
CD74HC4002EE4
[更多]
Texas Instruments

NOR Gate 2-Element 4-IN CMOS 14-Pin PDIP Tube - Rail/Tube (Alt: CD74HC4002EE4)

RoHS: Compliant

搜索
  日本2号仓库    仓库直销,订单金额100元起订,满300元含运,满500元含税运,有单就有优惠,量大更优惠,支持原厂订货
型号 制造商 描述 操作
CD74HC4002E
[更多]
Texas Instruments

NOR Gate 2-Element 4-IN CMOS 14-Pin PDIP Tube

RoHS: Compliant

搜索
CD74HC4002E
[更多]
Texas Instruments

NOR Gate 2-Element 4-IN CMOS 14-Pin PDIP Tube

RoHS: Compliant

搜索
  新加坡2号仓库    仓库直销,订单金额100元起订,满300元含运,满500元含税运,有单就有优惠,量大更优惠,支持原厂订货
型号 制造商 描述 操作
CD74HC4002E
[更多]
Texas Instruments

LOGIC, DUAL 4-IN NOR GATE, 14DIP

搜索
  美国8号仓库    仓库直销,订单金额100元起订,满300元含运,满500元含税运,有单就有优惠,量大更优惠,支持原厂订货
型号 制造商 描述 操作
CD74HC4002E
[更多]
Harris Semiconductor  

搜索
CD74HC4002EX
[更多]
Harris Semiconductor  

搜索
CD74HC4002E
[更多]
Texas Instruments  

搜索
  日本5号仓库    仓库直销,订单金额100元起订,满300元含运,满500元含税运,有单就有优惠,量大更优惠,支持原厂订货
型号 制造商 描述 操作
CD74HC4002E
[更多]
Texas Instruments

Logic IC Operating temperature: -40...+85 °C Series: CD74HC4002 Function: Dual / 4-Input / NOR Manufacturer: Texas Instruments Package: DIL-14 Technology: HC

搜索
查看资料
  英国7号仓库    仓库直销,订单金额100元起订,满300元含运,满500元含税运,有单就有优惠,量大更优惠,支持原厂订货
型号 制造商 描述 操作
CD74HC4002E
[更多]
Texas Instruments

IC: digital, NOR, Channels:2, Inputs:4, THT, DIP14, Series: HC

搜索
  英国8号仓库    仓库直销,订单金额100元起订,满300元含运,满500元含税运,有单就有优惠,量大更优惠,支持原厂订货
型号 制造商 描述 操作
CD74HC4002E
[更多]
Texas Instruments

HC/UH SERIES, DUAL 4-INPUT NOR GATE, PDIP14

搜索
CD74HC4002E
[更多]
Harris Semiconductor

HC/UH SERIES, DUAL 4-INPUT NOR GATE, PDIP14

搜索
CD74HC4002EE4
[更多]
Texas Instruments

HC/UH SERIES, DUAL 4-INPUT NOR GATE, PDIP14 (Also Known As: CD74HC4002E)

搜索
CD74HC4002EE4
[更多]
Texas Instruments

HC/UH SERIES, DUAL 4-INPUT NOR GATE, PDIP14

搜索
CD74HC4002EX
[更多]
Harris Semiconductor

Logic Circuit, Dual 4-Input NOR, HC-CMOS, 14 Pin, Plastic, DIP

搜索
  新加坡2号仓库    查看更多相关产品
制造商产品编号 仓库库存编号 制造商 / 说明 / 规格书 操作
CD74HC4002E
TEXAS INSTRUMENTS CD74HC4002E
1739941

TEXAS INSTRUMENTS

或非门, HC系列, 4输入, 5.2 mA, 2V至6V, DIP-14

(EN)
搜索
  美国1号仓库    查看更多相关产品
参考图片 制造商 / 描述 / 型号 / 仓库库存编号 / 别名 PDF操作

Texas Instruments - CD74HC4002E - IC GATE NOR 2CH 4-INP 14-DIP
Texas Instruments
IC GATE NOR 2CH 4-INP 14-DIP

详细描述:NOR Gate IC Channel 14-PDIP

型号:CD74HC4002E
仓库库存编号:296-25987-5-ND
别名:296-25987-5 <br>CD74HC4002E-ND <br>

无铅
搜索

Texas Instruments - CD74HC4002EG4 - IC GATE NOR 2CH 4-INP 14-DIP
Texas Instruments
IC GATE NOR 2CH 4-INP 14-DIP

详细描述:NOR Gate IC Channel 14-PDIP

型号:CD74HC4002EG4
仓库库存编号:CD74HC4002EG4-ND
别名:CD74HC4002EE4 <br>CD74HC4002EE4-ND <br>

无铅
搜索
  www.szcwdz.com    查看更多相关产品
参考图片 型号/品牌 描述 / 技术参考 操作
CD74HC4002E|TEXAS INSTRUMENTSCD74HC4002E
TEXAS INSTRUMENTS
逻辑芯片 双路4输入或非门 14DIP
Rohs

PDF下载 
查价格库存
查看详细
CD74HC4002EE4|Texas InstrumentsCD74HC4002EE4
Texas Instruments
IC DUAL 4-IN NOR GATE 14-DIP
Rohs

PDF下载 
查价格库存
查看详细
无图CD74HC4002EX
HARRIS
原厂原装货
暂无PDF 
查价格库存
查看详细
  日本5号仓库    查看更多相关产品
参考图片 制造商 / 说明 / 型号 / 仓库库存编号 PDF 操作

Texas Instruments - CD74HC4002E - Logic IC DIL-14, CD74HC4002, CD74HC4002E, Texas Instruments
Texas Instruments
Logic IC DIL-14, CD74HC4002, CD74HC4002E, Texas Instruments


型号:CD74HC4002E
仓库库存编号:173-54-746

搜索
  www.szcwdz.com.cn    查看更多相关产品
参考图片 型号/品牌 描述 / 技术参考 操作
CD74HC4002E|Texas InstrumentsCD74HC4002E
Texas Instruments
IC DUAL 4-IN NOR GATE 14-DIP
Rohs

PDF下载 
查价格库存
查看详细
CD74HC4002EE4|Texas InstrumentsCD74HC4002EE4
Texas Instruments
IC DUAL 4-IN NOR GATE 14-DIP
Rohs

PDF下载 
查价格库存
查看详细
  英国10仓库    查看更多相关产品
产品描述 / 参考图片 制造商零件编号 / 制造商 / 库存编号 操作

Texas Instruments - CD74HC4002E - Texas Instruments CD74HC4002E 2个 4输入 NOR 逻辑门, 5.2mA, 2 → 6 V电源, 14引脚 PDIP封装

制造商零件编号:
CD74HC4002E
品牌:
Texas Instruments
库存编号:
663-0297
搜索
  www.szcwdz.cn    查看更多相关产品
参考图片 型号/品牌 描述 / 技术参考 操作
CD74HC4002EE4|Texas InstrumentsCD74HC4002EE4
Texas Instruments
IC DUAL 4-IN NOR GATE 14-DIP
Rohs

PDF下载 
查价格库存
查看详细
CD74HC4002E|TEXAS INSTRUMENTSCD74HC4002E
TEXAS INSTRUMENTS
逻辑芯片 双路4输入或非门 14DIP
Rohs

PDF下载 
查价格库存
查看详细
电话:400-900-3095
QQ:800152669

CD74HC4002E产地与重量

原产地:
Malaysia

进行最后一道重要生产流程所在的国家

RoHS 合规:
税则号:
85423990
重量(千克):
.006123
laird电子简介 | laird产品 | laird动态 | 按系列选型 | 按产品规格选型 | laird产品应用 | laird选型手册
Copyright © 2017 www.laird-tek.com All Rights Reserved. 技术支持:电子元器件 ICP备案证书号:粤ICP备11103613号
版权所有:深圳市创唯电子有限公司 客服电话:400-900-3095 企业QQ:800152669 邮箱:sales@szcwdz.com
深圳市市场监督管理局企业主体身份公示