參數(shù)資料
型號(hào)： SN74ABT18502A
廠商： Texas Instruments, Inc.
英文描述： Scan Test Devices With 18-Bit Universal Bus Transceivers(掃描測(cè)試裝置(帶18位通用總線收發(fā)器))
中文描述： 掃描測(cè)試設(shè)備與18位通用總線收發(fā)器（掃描測(cè)試裝置（帶18位通用總線收發(fā)器））
文件頁數(shù)： 18/35頁
文件大?。?/td> 738K
代理商： SN74ABT18502A
SN54ABT18502A, SN54ABT182502A, SN74ABT18502A, SN74ABT182502A
SCAN TEST DEVICES WITH
18-BIT UNIVERSAL BUS TRANSCEIVERS
SCBS488 – AUGUST 1994
18
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
parallel signature analysis (PSA)
Data appearing at the selected device input-mode I/O pins is compressed into a 36-bit parallel signature in the
shift-register elements of the selected BSCs on each rising edge of TCK. Data in the shadow latches of the
selected output-mode BSCs remains constant and is applied to the associated device I/O pins. Figures 7 and 8
illustrate the 36-bit linear-feedback shift-register algorithms through which the signature is generated. An initial
seed value should be scanned into the BSR before performing this operation.
=
1B8-I/O
1B7-I/O
1B6-I/O
1B5-I/O
1B4-I/O
1B3-I/O
1B2-I/O
1B1-I/O
1B9-I/O
1A7-I/O
1A6-I/O
1A5-I/O
1A4-I/O
1A3-I/O
1A2-I/O
1A1-I/O
1A8-I/O
1A9-I/O
2A7-I/O
2A6-I/O
2A5-I/O
2A4-I/O
2A3-I/O
2A2-I/O
2A1-I/O
2A8-I/O
2A9-I/O
2B8-I/O
2B7-I/O
2B6-I/O
2B5-I/O
2B4-I/O
2B3-I/O
2B2-I/O
2B1-I/O
2B9-I/O
=
Figure 7. 36-Bit PSA Configuration (1OEAB = 2OEAB = 0, 1OEBA = 2OEBA = 1)
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相關(guān)PDF資料
PDF描述
SN54ABT182502A Scan Test Devices With 18-Bit Universal Bus Transceivers(掃描測(cè)試裝置(帶18位通用總線收發(fā)器))
SN54ABT18502A Scan Test Devices With 18-Bit Universal Bus Transceivers(掃描測(cè)試裝置(帶18位通用總線收發(fā)器))
SN74AHC16245 16-Bit Bus Transceivers With 3-State Outputs(16位緩沖器/驅(qū)動(dòng)器(三態(tài)輸出))
SN74AHC240DBRG4 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
SN74AHCT27 Triple 3-Input Positive-NOR Gates(三3輸入正或非門)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SN74ABT18502PM 功能描述:特定功能邏輯 W/18-Bit Univ Bus Trncvr RoHS:否 制造商:Texas Instruments 產(chǎn)品: 系列:SN74ABTH18502A 工作電源電壓:5 V 封裝 / 箱體:LQFP-64 封裝:Tube
SN74ABT18502PMG4 功能描述:特定功能邏輯 W/18-Bit Univ Bus Trncvr RoHS:否 制造商:Texas Instruments 產(chǎn)品: 系列:SN74ABTH18502A 工作電源電壓:5 V 封裝 / 箱體:LQFP-64 封裝:Tube
SN74ABT18502PMR 功能描述:特定功能邏輯 W/18-Bit Univ Bus Trncvr RoHS:否 制造商:Texas Instruments 產(chǎn)品: 系列:SN74ABTH18502A 工作電源電壓:5 V 封裝 / 箱體:LQFP-64 封裝:Tube
SN74ABT18502PMRG4 功能描述:特定功能邏輯 W/18-Bit Univ Bus Trncvr RoHS:否 制造商:Texas Instruments 產(chǎn)品: 系列:SN74ABTH18502A 工作電源電壓:5 V 封裝 / 箱體:LQFP-64 封裝:Tube
SN74ABT18502PN 制造商:TI 功能描述:74ABT18502 S1A4B
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