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參數(shù)資料
| 型號(hào)： | SCAN18245TSSC |
| 廠(chǎng)商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類(lèi)： | 通用總線(xiàn)功能 |
| 英文描述： | Non-Inverting Transceiver with 3-STATE Outputs |
| 中文描述： | SCAN/JTAG/3J SERIES, DUAL 9-BIT BOUNDARY SCAN TRANSCEIVER, TRUE OUTPUT, PDSO56 |
| 封裝： | 0.300 INCH, MO-118, SSOP-56 |
| 文件頁(yè)數(shù)： | 3/11頁(yè) |
| 文件大?。?/td> | 108K |
| 代理商： | SCAN18245TSSC |
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Description of Boundary-Scan Circuitry
The scan cells used in the BOUNDARY-SCAN register are
one of the following two types depending upon their loca-
tion. Scan cell TYPE1 is intended to solely observe system
data, while TYPE2 has the additional ability to control sys-
tem data. (See IEEE Standard 1149.1
Figure 10–11
for a
further description of scan cell TYPE1 and
Figure 10–12
for
a further description of scan cell TYPE2.)
Scan cell TYPE1 is located on each system input pin while
scan cell TYPE2 is located at each system output pin as
well as at each of the two internal active-high output enable
signals. AOE controls the activity of the A-outputs while
BOE controls the activity of the B-outputs. Each will acti-
vate their respective outputs by loading a logic high.
The BYPASS register is a single bit shift register stage
identical to scan cell TYPE1. It captures a fixed logic low.
Bypass Register Scan Chain Definition
Logic 0
The INSTRUCTION register is an eight-bit register which
captures the value 00111101.
The two least significant bits of this captured value (01) are
required by IEEE Std 1149.1. The upper six bits are unique
to the SCAN18245T device. SCAN CMOS Test Access
Logic devices do not include the IEEE 1149.1 optional
identification register. Therefore, this unique captured
value can be used as a
“
pseudo ID
”
code to confirm that
the correct device is placed in the appropriate location in
the boundary scan chain.
Instruction Register Scan Chain Definition
MSB
→
LSB
Scan Cell TYPE1
Scan Cell TYPE2
Instruction Code
00000000
10000001
10000010
00000011
All Others
Instruction
EXTEST
SAMPLE/PRELOAD
CLAMP
HIGHZ
BYPASS
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| SCAN18541T | Non-Inverting Line Driver with 3-STATE Outputs |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SCAN18245TSSCX | 功能描述:總線(xiàn)收發(fā)器 Non-Inverting Trans RoHS:否 制造商:Fairchild Semiconductor 邏輯類(lèi)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(lèi)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 |
| SCAN182541_YBE3026B WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| SCAN182541A | 制造商:FAIRCHILD 制造商全稱(chēng):Fairchild Semiconductor 功能描述:Non-Inverting Line Driver with 25ohm Series Resistor Outputs |
| SCAN182541ASSC | 功能描述:緩沖器和線(xiàn)路驅(qū)動(dòng)器 Non-Inv Line Drv RoHS:否 制造商:Micrel 輸入線(xiàn)路數(shù)量:1 輸出線(xiàn)路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| SCAN182541ASSCX | 功能描述:緩沖器和線(xiàn)路驅(qū)動(dòng)器 Non-Inv Line Drv RoHS:否 制造商:Micrel 輸入線(xiàn)路數(shù)量:1 輸出線(xiàn)路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
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