전자부품 데이터시트 검색엔진 |
|
SN74ABT8996DW 데이터시트(PDF) 1 Page - Texas Instruments |
|
|
SN74ABT8996DW 데이터시트(HTML) 1 Page - Texas Instruments |
1 / 46 page SN54ABT8996, SN74ABT8996 10-BIT ADDRESSABLE SCAN PORTS MULTIDROP-ADDRESSABLE IEEE STD 1149.1 (JTAG) TAP TRANSCEIVERS SCBS489C – AUGUST 1994 – REVISED APRIL 1999 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Members of Texas Instruments Broad Family of Testability Products Supporting IEEE Std 1149.1-1990 (JTAG) Test Access Port (TAP) and Boundary-Scan Architecture D Extend Scan Access From Board Level to Higher Levels of System Integration D Promote Reuse of Lower-Level (Chip/Board) Tests in System Environment D Switch-Based Architecture Allows Direct Connect of Primary TAP to Secondary TAP D Primary TAP Is Multidrop for Minimal Use of Backplane Wiring Channels D Simple Addressing (Shadow) Protocol Is Received/Acknowledged on Primary TAP D Shadow Protocols Can Occur in Any of Test-Logic-Reset, Run-Test/Idle, Pause-DR, and Pause-IR TAP States to Provide for Board-to-Board Test and Built-In Self-Test D 10-Bit Address Space Provides for Up to 1021 User-Specified Board Addresses D Bypass (BYP) Pin Forces Primary-to-Secondary Connection Without Use of Shadow Protocols D Connect (CON) Pin Provides Indication of Primary-to-Secondary Connection D High-Drive Outputs (–32-mA IOH, 64-mA IOL) Support Backplane Interface at Primary and High Fanout at Secondary D Package Options Include Plastic Small- Outline (DW) and Thin Shrink Small- Outline (PW) Packages, Ceramic Chip Carriers (FK), and Ceramic DIPs (JT) description The ’ABT8996 10-bit addressable scan ports (ASP) are members of the Texas Instruments (TI ™) SCOPE™ testability integrated-circuit family. This family of devices supports IEEE Standard 1149.1-1990 boundary scan to facilitate testing of complex circuit assemblies. Unlike most SCOPE ™ devices, the ASP is not a boundary-scannable device, rather, it applies TI’s addressable-shadow-port technology to the IEEE Standard 1149.1-1990 (JTAG) test access port (TAP) to extend scan access beyond the board level. Conceptually, the ASP is a simple switch that can be used to directly connect a set of multidrop primary TAP signals to a set of secondary TAP signals – for example, to interface backplane TAP signals to a board-level TAP. The ASP provides all signal buffering that might be required at these two interfaces. When primary and secondary TAPs are connected, only a moderate propagation delay is introduced – no storage/retiming elements are inserted. This minimizes the need for reformatting board-level test vectors for in-system use. Copyright © 1999, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. SCOPE is a trademark of Texas Instruments Incorporated. 17 SN54ABT8996 . . . JT PACKAGE SN74ABT8996 . . . DW OR PW PACKAGE (TOP VIEW) 5 6 7 8 9 10 11 25 24 23 22 21 20 19 43 2 1 28 12 13 14 15 16 A8 A9 VCC NC CON STDI STCK A1 A0 BYP NC GND PTDO PTCK SN54ABT8996 . . . FK PACKAGE (TOP VIEW) 18 27 26 A4 A3 A2 A1 A0 BYP GND PTDO PTCK PTMS PTDI PTRST A5 A6 A7 A8 A9 VCC CON STDI STCK STMS STDO STRST 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 NC – No internal connection |
유사한 부품 번호 - SN74ABT8996DW |
|
유사한 설명 - SN74ABT8996DW |
|
|
링크 URL |
개인정보취급방침 |
ALLDATASHEET.CO.KR |
ALLDATASHEET 가 귀하에 도움이 되셨나요? [ DONATE ] |
Alldatasheet는? | 광고문의 | 운영자에게 연락하기 | 개인정보취급방침 | 링크교환 | 제조사별 검색 All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |