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| 型号： | SN54LVTH182512 |
| 厂商： | Texas Instruments, Inc. |
| 英文描述： | 3.3-V ABT Scan Test Device With 18-Bit Universal Bus Transceivers(3.3VABT扫描测试装置(18位通用总线收发器)) |
| 中文描述： | 的3.3V ABT生根粉扫描测试设备与18位通用总线收发器（3.3VABT扫描测试装置（18位通用总线收发器）） |
| 文件页数： | 17/34页 |
| 文件大小： | 726K |
| 代理商： | SN54LVTH182512 |
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SN54LVTH18512, SN54LVTH182512, SN74LVTH18512, SN74LVTH182512
3.3-V ABT SCAN TEST DEVICES
WITH 18-BIT UNIVERSAL BUS TRANSCEIVERS
SCBS671A – AUGUST 1996 – REVISED JUNE 1997
17
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
show 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)
P
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| SN54LVTH18514 | 3.3-V ABT Scan Test Device With 20-Bit Universal Bus Transceivers(3.3VABT扫描测试装置(20位通用总线收发器)) |
| SN54LVTH182514 | 3.3-V ABT Scan Test Device With 20-Bit Universal Bus Transceivers(3.3VABT扫描测试装置(20位通用总线收发器)) |
| SN74LVTH182514 | 3.3-V ABT Scan Test Device With 20-Bit Universal Bus Transceivers(3.3V ABT扫描测试装置(20位通用总线收发器)) |
| SN54LVTH18516 | 3.3-V ABT Scan Test Device With 18-Bit Universal Bus Transceivers(3.3VABT扫描测试装置(18位通用总线收发器)) |
| SN74LVTH18516 | 3.3-V ABT Scan Test Device With 18-Bit Universal Bus Transceivers(3.3VABT扫描测试装置(18位通用总线收发器)) |
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| SN54S00J | 制造商:Texas Instruments 功能描述:NAND Gate 4-Element 2-IN Bipolar 14-Pin CDIP Tube 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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| SN54S02J | 制造商:Texas Instruments 功能描述: |
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