Motore di ricerca datesheet componenti elettronici
  Italian  ▼
ALLDATASHEETIT.COM

X  

SN74ABTH182504A Scheda tecnica(PDF) 9 Page - Texas Instruments

Click here to check the latest version.
Il numero della parte SN74ABTH182504A
Spiegazioni elettronici  SCAN TEST DEVICES WITH 20-BIT UNIVERSAL BUS TRANSCEIVERS
Download  39 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Produttore elettronici  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments

SN74ABTH182504A Scheda tecnica(HTML) 9 Page - Texas Instruments

Back Button SN74ABTH182504A Datasheet HTML 5Page - Texas Instruments SN74ABTH182504A Datasheet HTML 6Page - Texas Instruments SN74ABTH182504A Datasheet HTML 7Page - Texas Instruments SN74ABTH182504A Datasheet HTML 8Page - Texas Instruments SN74ABTH182504A Datasheet HTML 9Page - Texas Instruments SN74ABTH182504A Datasheet HTML 10Page - Texas Instruments SN74ABTH182504A Datasheet HTML 11Page - Texas Instruments SN74ABTH182504A Datasheet HTML 12Page - Texas Instruments SN74ABTH182504A Datasheet HTML 13Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 9 / 39 page
background image
SN54ABTH18504A, SN54ABTH182504A, SN74ABTH18504A, SN74ABTH182504A
SCAN TEST DEVICES WITH
20-BIT UNIVERSAL BUS TRANSCEIVERS
SCBS165C – AUGUST 1993 – REVISED JULY 1996
9
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
register overview
With the exception of the bypass and device-identification registers, any test register can be thought of as a
serial shift register with a shadow latch on each bit. The bypass and device-identification registers differ in that
they contain only a shift register. During the appropriate capture state (Capture-IR for instruction register,
Capture-DR for data registers), the shift register can be parallel loaded from a source specified by the current
instruction. During the appropriate shift state (Shift-IR or Shift-DR), the contents of the shift register are shifted
out from TDO while new contents are shifted in at TDI. During the appropriate update state (Update-IR or
Update-DR), the shadow latches are updated from the shift register.
instruction register description
The instruction register (IR) is eight bits long and tells the device what instruction is to be executed. Information
contained in the instruction includes the mode of operation (either normal mode, in which the device performs
its normal logic function, or test mode, in which the normal logic function is inhibited or altered), the test operation
to be performed, which of the four data registers is to be selected for inclusion in the scan path during
data-register scans, and the source of data to be captured into the selected data register during Capture-DR.
Table 3 lists the instructions supported by the ’ABTH18504A and ’ABTH182504A. The even-parity feature
specified for SCOPE
™ devices is supported in these devices. Bit 7 of the instruction opcode is the parity bit.
Any instructions that are defined for SCOPE
™ devices but are not supported by these devices default to
BYPASS.
During Capture-IR, the IR captures the binary value 10000001. As an instruction is shifted in, this value is shifted
out via TDO and can be inspected as verification that the IR is in the scan path. During Update-IR, the value
that has been shifted into the IR is loaded into shadow latches. At this time, the current instruction is updated
and any specified mode change takes effect. At power up or in the Test-Logic-Reset state, the IR is reset to the
binary value 10000001, which selects the IDCODE instruction. The IR order of scan is shown in Figure 2.
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
TDO
TDI
Bit 7
Parity
(MSB)
Bit 0
(LSB)
Figure 2. Instruction Register Order of Scan


Codice articolo simile - SN74ABTH182504A

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
Texas Instruments
SN74ABTH182504A TI-SN74ABTH182504A Datasheet
547Kb / 35P
[Old version datasheet]   SCAN TEST DEVICES WITH 20-BIT UNIVERSAL BUS TRANSCEIVERS
SN74ABTH182504APM TI-SN74ABTH182504APM Datasheet
547Kb / 35P
[Old version datasheet]   SCAN TEST DEVICES WITH 20-BIT UNIVERSAL BUS TRANSCEIVERS
More results

Descrizione simile - SN74ABTH182504A

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
Texas Instruments
SN54ABT18504 TI-SN54ABT18504_08 Datasheet
665Kb / 34P
[Old version datasheet]   SCAN TEST DEVICES WITH 20-BIT UNIVERSAL BUS TRANSCEIVERS
SN54ABTH18504A TI-SN54ABTH18504A Datasheet
547Kb / 35P
[Old version datasheet]   SCAN TEST DEVICES WITH 20-BIT UNIVERSAL BUS TRANSCEIVERS
SN54ABT18504 TI-SN54ABT18504 Datasheet
450Kb / 30P
[Old version datasheet]   SCAN TEST DEVICES WITH 20-BIT UNIVERSAL BUS TRANSCEIVERS
SN54ABTH18502A TI-SN54ABTH18502A_08 Datasheet
832Kb / 42P
[Old version datasheet]   SCAN TEST DEVICES WITH 18-BIT UNIVERSAL BUS TRANSCEIVERS
SN54ABTH18502A TI-SN54ABTH18502A Datasheet
549Kb / 37P
[Old version datasheet]   SCAN TEST DEVICES WITH 18-BIT UNIVERSAL BUS TRANSCEIVERS
SN54ABTH18502A TI-SN54ABTH18502A_07 Datasheet
802Kb / 42P
[Old version datasheet]   SCAN TEST DEVICES WITH 18-BIT UNIVERSAL BUS TRANSCEIVERS
SN54LVTH18504A TI1-SN54LVTH18504A_12 Datasheet
881Kb / 38P
[Old version datasheet]   3.3-V ABT SCAN TEST DEVICES WITH 20-BIT UNIVERSAL BUS TRANSCEIVERS
SN54LVTH18504A TI-SN54LVTH18504A Datasheet
544Kb / 35P
[Old version datasheet]   3.3-V ABT SCAN TEST DEVICES WITH 20-BIT UNIVERSAL BUS TRANSCEIVERS
SN54LVTH18514 TI-SN54LVTH18514 Datasheet
548Kb / 34P
[Old version datasheet]   3.3-V ABT SCAN TEST DEVICES WITH 20-BIT UNIVERSAL BUS TRANSCEIVERS
SN54LVTH18514 TI1-SN54LVTH18514_17 Datasheet
584Kb / 38P
[Old version datasheet]   3.3-V ABT SCAN TEST DEVICES WITH 20-BIT UNIVERSAL BUS TRANSCEIVERS
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39


Scheda tecnica Scarica

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEETIT.COM
Lei ha avuto il aiuto da alldatasheet?  [ DONATE ] 

Di alldatasheet   |   Richest di pubblicita   |   contatti   |   Privacy Policy   |   scambio Link   |   Ricerca produttore
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
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