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參數(shù)資料
| 型號： | SN74CBT16245CDLRG4 |
| 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 8-BIT DRIVER, TRUE OUTPUT, PDSO48 |
| 封裝： | GREEN, PLASTIC, SSOP-48 |
| 文件頁數(shù)： | 6/13頁 |
| 文件大?。?/td> | 368K |
| 代理商： | SN74CBT16245CDLRG4 |
SN74CBT16245C
16BIT FET BUS SWITCH
5V BUS SWITCH WITH -2V UNDERSHOOT PROTECTION
SCDS139 OCTOBER 2003
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description/ordering information (continued)
The SN74CBT16245C is a high-speed TTL-compatible FET bus switch with low ON-state resistance (ron),
allowing for minimal propagation delay. Active Undershoot-Protection Circuitry on the A and B ports of the
SN74CBT16245C provides protection for undershoot up to 2 V by sensing an undershoot event and ensuring
that the switch remains in the proper OFF state.
The SN74CBT16245C is organized as two 8-bit bus switches with separate output-enable (1OE, 2OE) inputs.
It can be used as two 8-bit bus switches or as one 16-bit bus switch. When OE is low, the associated 8-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 8-bit bus switch is OFF and the high-impedance state exists between the A and B
ports.
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.
FUNCTION TABLE
(each 8-bit bus switch)
INPUT
INPUT/OUTPUT
FUNCTION
INPUT
OE
INPUT/OUTPUT
A
FUNCTION
L
B
A port = B port
H
Z
Disconnect
logic diagram (positive logic)
1A1
SW
1B1
1A8
1OE
SW
1B8
2A1
SW
2B1
2A8
2OE
SW
2B8
47
37
48
36
26
25
2
12
13
23
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN74CBT16245DGG | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| SN74CBT16245DGGR | 功能描述:數(shù)字總線開關(guān) IC 16-Bit FET RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:24 傳播延遲時間: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 |
| SN74CBT16245DGVR | 功能描述:數(shù)字總線開關(guān) IC 16-Bit FET RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:24 傳播延遲時間: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 |
| SN74CBT16245DL | 功能描述:數(shù)字總線開關(guān) IC 16bit FET RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:24 傳播延遲時間: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 |
| SN74CBT16245DLG4 | 功能描述:數(shù)字總線開關(guān) IC 16-BIT FET BUS SWITCH RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:24 傳播延遲時間: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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