參數(shù)資料
型號(hào)： SN74ABT8652DW
廠商： TEXAS INSTRUMENTS INC
元件分類： 總線收發(fā)器
英文描述： ABT SERIES, 8-BIT BOUNDARY SCAN REG TRANSCEIVER, TRUE OUTPUT, PDSO28
封裝： PLASTIC, SOIC-28
文件頁(yè)數(shù)： 6/30頁(yè)
文件大?。?/td> 506K
代理商： SN74ABT8652DW
SN54ABT8652, SN74ABT8652
SCAN TEST DEVICES
WITH OCTAL BUS TRANSCEIVERS AND REGISTERS
SCBS122F – AUGUST 1992 – REVISED DECEMBER 1996
14
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
pseudo-random pattern generation (PRPG)
A pseudo-random pattern is generated in the shift-register elements of the selected BSCs on each rising edge
of TCK, updated in the shadow latches, and applied to the associated device output terminals on each falling
edge of TCK. This data also is updated in the shadow latches of the selected input BSCs and applied to the
inputs of the normal on-chip logic. Figures 5 and 6 show the 16-bit linear-feedback shift-register algorithms
through which the patterns are generated. An initial seed value should be scanned into the BSR before
performing this operation. A seed value of all zeroes does not produce additional patterns.
=
A8-I
B8-O
A7-I
A6-I
A5-I
A4-I
A3-I
A2-I
A1-I
B7-O
B6-O
B5-O
B4-O
B3-O
B2-O
B1-O
Figure 5. 16-Bit PRPG Configuration (OEAB = 1, OEBA = 1)
=
B8-I
A8-O
B7-I
B6-I
B5-I
B4-I
B3-I
B2-I
B1-I
A7-O
A6-O
A5-O
A4-O
A3-O
A2-O
A1-O
Figure 6. 16-Bit PRPG Configuration (OEAB = 0, OEBA = 0)
相關(guān)PDF資料
PDF描述
SN74ABTH162460DLR ABT SERIES, 4-BIT EXCHANGER, TRUE OUTPUT, PDSO56
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SN74ABTH182502APMLE ABT SERIES, DUAL 9-BIT BOUNDARY SCAN REG TRANSCEIVER, TRUE OUTPUT, PQFP64
SN74ABTH18652APMLE ABT SERIES, DUAL 9-BIT BOUNDARY SCAN REG TRANSCEIVER, TRUE OUTPUT, PQFP64
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SN74ABT8652DWE4 功能描述:特定功能邏輯 Device w/Octal Bus Trnscvr & Register 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
SN74ABT8652DWG4 功能描述:特定功能邏輯 Scan Test Devices 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
SN74ABT8652DWR 功能描述:總線收發(fā)器 Device w/Octal Bus Trnscvr & Register RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時(shí)間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel
SN74ABT8652DWRE4 功能描述:特定功能邏輯 Device w/Octal Bus Trnscvr & Register 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
SN74ABT8652DWRG4 功能描述:特定功能邏輯 Scan Test Devices 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
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