參數(shù)資料
型號: SN54ABTH182504A
廠商: Texas Instruments, Inc.
英文描述: Scan Test Devices With 20 Bit Universal Bus Transceivers(掃描檢測裝置,帶20位通用總線收發(fā)器)
中文描述: 掃描測試設(shè)備與20位通用總線收發(fā)器(掃描檢測裝置,帶20位通用總線收發(fā)器)
文件頁數(shù): 12/35頁
文件大小: 812K
代理商: SN54ABTH182504A
SN54ABTH18504A, SN54ABTH182504A, SN74ABTH18504A, SN74ABTH182504A
SCAN TEST DEVICES WITH
20-BIT UNIVERSAL BUS TRANSCEIVERS
SCBS165C – AUGUST 1993 – REVISED JULY 1996
12
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
device-identification register
The device-identification register (IDR) is 32 bits long. It can be selected and read to identify the manufacturer,
part number, and version of this device.
For the ’ABTH18504A , the binary value 00000000000000101000000000101111 (0002802F, hex) is captured
(during Capture-DR state) in the IDR to identify this device as Texas Instruments SN54/74ABTH18504A.
For the ’ABTH182504A , the binary value 00000000000000101100000000101111 (0002C02F, hex) is captured
(during Capture-DR state) in the IDR to identify this device as Texas Instruments SN54/74ABTH182504A.
The IDR order of scan is from TDI through bits 31–0 to TDO. Table 2 shows the IDR bits and their significance.
Table 2. Device-Identification Register Configuration
IDR BIT
NUMBER
IDENTIFICATION
SIGNIFICANCE
IDR BIT
NUMBER
IDENTIFICATION
SIGNIFICANCE
IDR BIT
NUMBER
IDENTIFICATION
SIGNIFICANCE
MANUFACTURER10
MANUFACTURER09
MANUFACTURER08
MANUFACTURER07
MANUFACTURER06
MANUFACTURER05
MANUFACTURER04
MANUFACTURER03
MANUFACTURER02
MANUFACTURER01
MANUFACTURER00
LOGIC1
31
VERSION3
27
PARTNUMBER15
11
30
VERSION2
26
PARTNUMBER14
10
29
VERSION1
25
PARTNUMBER13
9
28
VERSION0
24
PARTNUMBER12
8
––
––
23
PARTNUMBER11
7
––
––
22
PARTNUMBER10
6
––
––
21
PARTNUMBER09
5
––
––
20
PARTNUMBER08
4
––
––
19
PARTNUMBER07
3
––
––
18
PARTNUMBER06
2
––
––
17
PARTNUMBER05
1
––
––
16
PARTNUMBER04
0
––
––
15
PARTNUMBER03
––
––
––
––
14
PARTNUMBER02
––
––
––
––
13
PARTNUMBER01
––
––
––
––
12
PARTNUMBER00
––
––
Note that for TI products, bits 11–0 of the device-identification register always contain the binary value 000000101111
(02F, hex).
相關(guān)PDF資料
PDF描述
SN54ABTH18504A Scan Test Devices With 20 Bit Universal Bus Transceivers(掃描檢測裝置,帶20位通用總線收發(fā)器)
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