ADMap-1045  > HD74LS257

suppliers of HD74LS257 and PDF data of HD74LS257

Part Numbert Mfg Packt D/C Descriptiont Qty Company/Contact  
HD74LS257 CAYSTAL        53 
    HY (HK) IC Limited
  • Contact:Melody
  • Tel:86-755-82535765
  • Fax:86-755-82535755
  • Email: melody_ic@tom.com


HD74LS257 HITACHI  CDIP16  93+    317 
HD74LS257 HITACHI         


HD74LS257 HIT  CDIP    in stock  157 
    WT Technology Int l.HK LIMITED
  • Contact:Vivien
  • Tel:86-755-82953360
  • Fax:86-755-82579304
  • Email: wt1@kwl-ic.com


HD74LS257 HIT  A/N  08+    151 
    ShantouJinhongdaElectronicCo.,..
  • Contact:wu
  • Tel:86-755-86674139
  • Fax:
  • Email: jhd388@163.com
HD74LS257         1002 
HD74LS257 AD  N/A  05+  sales@bmc-ic.com  100 
HD74LS257 HITCHIA  DIP    delivered in 2-7 da 
    SILICON TECHNOLOGY(HONGKONG)EL..
  • Contact:sindy
  • Tel:86-755-83000558
  • Fax:86-755-83000758
  • Email: sindy@silicon-ic.com
HD74LS257 HIT    05+  现货/森强欢迎您的查询!深圳可交货!  101 
    Shantou strong electronic Co.,..
  • Contact:linS
  • Tel:86-754-82331382
  • Fax:86-754-82331382
  • Email: lin520lin520lin@qq.com
HD74LS257 HIT  CDIP    STRC Verified  252 
    BLUE SKY ELECTRON (HK) LIMITED..
  • Contact:Xu Shirley
  • Tel:86-755-82579317
  • Fax:86-755-82579304
  • Email: bluesky@kwl-ic.com
HD74LS257 HIT  CDIP    STRC Verified  252 
    KWL Electronics International ..
  • Contact:Tracy
  • Tel:852-68104198--8019
  • Fax:852-66183495
  • Email: sales011@kwlhk.com


HD74LS257 HITACHI        22 
    Hongkong By-Joy Elec Co.,Ltd
  • Contact:Lucy
  • Tel:86-755-83633625
  • Fax:86-755-83001775
  • Email: hkbyjoy@yahoo.com.cn


HD74LS257 Hitachi         
    winning(HK)international group..
  • Contact:Ms.wendy
  • Tel:86-754-84484948
  • Fax:86-754-84477867
  • Email: winningic@yahoo.com.cn
HD74LS257 HIT    04+  Normalstock  123 
    Abundant(HK)InternationalElect..
  • Contact:Mr.TUJASON
  • Tel:00852--30776702///86-13546851302
  • Fax:00852--30776702///86-13546851302
  • Email: tushuiping@163.com
HD74LS257 HITCHIA  DIP    98 
    KE NA WANG (HK) ELECTRONICS CO
  • Contact:Mr.Kennychio
  • Tel:0086-852-35031880
  • Fax:0086-852-35031885
  • Email: kenawangkenny@gmail.com
HD74LS257 HITCHIA  DIP  DIP  98 
    WEIHAOELECTRONICS(H.K)CO.,LIMI..
  • Contact:Mr.jamesLin
  • Tel:0086-755-82736887
  • Fax:0086-755-82736904
  • Email: 179232136@163.com
HD74LS257 HITCHIA  DIP    http://www.silicon-i 
    SILICONTECHNOLOGY(HONGKONG)ELE..
  • Contact:Mr.chen
  • Tel:0755-83000558-83000758
  • Fax:0755-83798338-
  • Email: silicon.ic@163.com
HD74LS257         309 
HD74LS257 HIT  DIP/16       83 
    SHENZHENGUANGSHUNJIEELECTRONIC..
  • Contact:Ms.guohuaxuan
  • Tel:086-0755-82543215/82814101/82543136
  • Fax:086-0755-82814486
  • Email: ghx_dz@163.com

HD74LS257 Datasheet
(1) An export permit needs to be obtained from the competent authorities of the Japanese Government if any of the products or technologies described in this material and controlled under the "Foreign Exchange and Foreign Trade Law" is to be exported or taken out of Japan.
HD74LS257 Price
Absolute Maximum Ratings at Ta =250C Collector-to-Base Voltage VCBO Collector-to-EmitterVoltage VCEO Emitter-to-Base Voltage VEBO Collector Current IC Collector Current (Pulse) ICP Base Current IB Collector Dissipation PC Junction Temperature Tj Storage Temperature Tstg

Hitachi Code T0-92 (1)
lJEDEC Conforms
lEIAJ Conforms
Weight (reference value) 0.25 a