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參數(shù)資料
| 型號： | SN74CBT3244DWG4 |
| 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 4-BIT DRIVER, TRUE OUTPUT, PDSO20 |
| 封裝： | GREEN, PLASTIC, SOIC-20 |
| 文件頁數(shù)： | 12/21頁 |
| 文件大?。?/td> | 835K |
| 代理商： | SN74CBT3244DWG4 |
SN74CBT3244
OCTAL FET BUS SWITCH
SCDS001N NOVEMBER 1992 REVISED SEPTEMBER 2003
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description/ordering information (continued)
The SN74CBT3244 provides eight bits of high-speed TTL-compatible bus switching. The SOIC, SSOP, TSSOP,
and TVSOP packages provide a standard ’244 device pinout. The low on-state resistance of the switch allows
connections to be made with minimal propagation delay.
The device is organized as two 4-bit low-impedance switches with separate output-enable (OE) inputs. When
OE is low, the switch is on, and data can flow from port A to port B, or vice versa. When OE is high, the switch
is open, and the high-impedance state exists between the two ports.
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 4-bit bus switch)
INPUT
OE
FUNCTION
L
A port = B port
H
Disconnect
logic diagram (positive logic)
1OE
1A1
1A4
1B1
1B4
2
8
1
18
12
2OE
2A1
2A4
2B1
2B4
11
17
19
9
3
Pin numbers shown are for the DB, DBQ, DGV, DW, RGY, and PW packages.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN74CBT3244DWR | 功能描述:數(shù)字總線開關(guān) IC OCTAL 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 |
| SN74CBT3244DWRE4 | 功能描述:數(shù)字總線開關(guān) IC OCTAL 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 |
| SN74CBT3244DWRG4 | 功能描述:數(shù)字總線開關(guān) IC Octal FETBus 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 |
| SN74CBT3244GQNR | 功能描述:數(shù)字總線開關(guān) IC Octal 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 |
| SN74CBT3244PW | 功能描述:數(shù)字總線開關(guān) IC Octal 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 |
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