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參數(shù)資料
| 型號(hào)： | SN74CBT16800CDGVR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | CBT/FST/QS/5C/B SERIES, DUAL 10-BIT DRIVER, TRUE OUTPUT, PDSO48 |
| 封裝： | PLASTIC, TVSOP-48 |
| 文件頁(yè)數(shù)： | 7/14頁(yè) |
| 文件大?。?/td> | 354K |
| 代理商： | SN74CBT16800CDGVR |
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SN74CBT16800C
20BIT FET BUS SWITCH WITH PRECHARGED OUTPUTS
5V BUS SWITCH WITH 2V UNDERSHOOT PROTECTION
SCDS117C JANUARY 2003 REVISED OCTOBER 2003
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description/ordering information (continued)
The SN74CBT16800C is organized as two 10-bit bus switches with separate output-enable (1OE, 2OE) inputs.
It can be used as two 10-bit bus switches or as one 20-bit bus switch. When OE is low, the associated 10-bit
bus switch is ON, and the A port is connected to the B port, allowing bidirectional data flow between ports. When
OE is high, the associated 10-bit bus switch is OFF, and a high-impedance state exists between the A and B
ports. The B port is precharged to BIASV through the equivalent of a 10-k
resistor when OE is high, or if the
device is powered down (VCC = 0 V).
During insertion (or removal) of a card into (or from) an active bus, the card’s output voltage may be close to
GND. When the connector pins make contact, the card’s parasitic capacitance tries to force the bus signal to
GND, creating a possible glitch on the active bus. This glitching effect can be reduced by using a bus switch
with precharged bias voltage (BIASV) of the bus switch equal to the input threshold voltage level of the receivers
on the active bus. This method will ensure that any glitch produced by insertion (or removal) of the card will not
cross the input threshold region of the receivers on the active bus, minimizing the effects of live-insertion noise.
This device is fully specified for partial-power-down applications using Ioff. The Ioff feature ensures that
damaging current will not backflow through the device when it is powered down. The device has isolation during
power off.
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
ORDERING INFORMATION
TA
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
SSOP DL
Tube
SN74CBT16800CDL
CBT16800C
SSOP DL
Tape and reel
SN74CBT16800CDLR
CBT16800C
40
°C to 85°C
TSSOP DGG
Tube
SN74CBT16800CDGG
CBT16800C
40 C to 85 C
TSSOP DGG
Tape and reel
SN74CBT16800CDGGR
CBT16800C
TVSOP DGV
Tape and reel
SN74CBT16800CDGVR
CY800C
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design
guidelines are available at www.ti.com/sc/package.
FUNCTION TABLE
(each 10-bit bus switch)
INPUT
INPUT/OUTPUT
FUNCTION
INPUT
OE
INPUT/OUTPUT
A
FUNCTION
L
B
A port = B port
H
Z
Disconnect
B port = BIASV
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN74CBT16800CDL | 功能描述:數(shù)字總線開關(guān) IC 20-Bit FET Bus Switch RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:24 傳播延遲時(shí)間:0.25 ns 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TSSOP-56 封裝:Reel |
| SN74CBT16800CDLG4 | 功能描述:數(shù)字總線開關(guān) IC 3.3V ABT Octal Buff/Drv W/3-St Otpt RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:24 傳播延遲時(shí)間:0.25 ns 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TSSOP-56 封裝:Reel |
| SN74CBT16800CDLR | 功能描述:數(shù)字總線開關(guān) IC 20-Bit FET Bus Switch RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:24 傳播延遲時(shí)間:0.25 ns 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TSSOP-56 封裝:Reel |
| SN74CBT16800CDLRG4 | 功能描述:數(shù)字總線開關(guān) IC 3.3V ABT Quad Bus Buff W/3-St Otpt RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:24 傳播延遲時(shí)間:0.25 ns 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TSSOP-56 封裝:Reel |
| SN74CBT16811CDGGR | 功能描述:數(shù)字總線開關(guān) IC 3.3-V ABT 16-Bit Bus Trncvr W/3-St Otpt RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:24 傳播延遲時(shí)間:0.25 ns 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TSSOP-56 封裝:Reel |
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