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參數(shù)資料
| 型號： | SN74LVTH244AGQNR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | LVT SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PBGA20 |
| 封裝： | PLASTIC, VFBGA-20 |
| 文件頁數(shù)： | 12/25頁 |
| 文件大?。?/td> | 1031K |
| 代理商： | SN74LVTH244AGQNR |
SN54LVTH244A, SN74LVTH244A
3.3-V ABT OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCAS586J DECEMBER 1996 REVISED OCTOBER 2003
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description/ordering information (continued)
The ’LVTH244A devices are organized as two 4-bit line drivers with separate output-enable (OE) inputs. When
OE is low, the devices pass data from the A inputs to the Y outputs. When OE is high, the outputs are in the
high-impedance state.
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.
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level. Use of pullup
or pulldown resistors with the bus-hold circuitry is not recommended.
These devices are fully specified for hot-insertion applications using Ioff and power-up 3-state. The Ioff circuitry
disables the outputs, preventing damaging current backflow through the devices when they are powered down.
The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down,
which prevents driver conflict.
terminal assignments
1234
A
1A1
1OE
VCC
2OE
B
1A2
2A4
2Y4
1Y1
C
1A3
2Y3
2A3
1Y2
D
1A4
2A2
2Y2
1Y3
E
GND
2Y1
2A1
1Y4
FUNCTION TABLE
(each buffer)
INPUTS
OUTPUT
OE
A
OUTPUT
Y
L
H
L
LL
H
X
Z
SN74LVTH244A . . . GQN OR ZQN PACKAGE
(TOP VIEW)
1
234
A
B
C
D
E
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN74LVTH244ANSR | 功能描述:緩沖器和線路驅(qū)動器 3.3V ABT Octal Buff/Drv W/3-St Otpt RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(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 |
| SN74LVTH244ANSRG4 | 功能描述:緩沖器和線路驅(qū)動器 16-Bit Dual-Supply Bus Transceiver RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(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 |
| SN74LVTH244APW | 功能描述:緩沖器和線路驅(qū)動器 ABT 3.3V RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(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 |
| SN74LVTH244APWE4 | 功能描述:緩沖器和線路驅(qū)動器 3.3V ABT Octal Buff/Drv W/3-St Otpt RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(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 |
| SN74LVTH244APWG4 | 功能描述:緩沖器和線路驅(qū)動器 3.3V ABT Octal Buff/Drv W/3-St Otpt RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(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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