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參數資料
| 型號： | SN74ALVCH244DWR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 總線收發器 |
| 英文描述： | ALVC/VCX/A SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20 |
| 封裝： | PLASTIC, SOIC-20 |
| 文件頁數： | 1/15頁 |
| 文件大小： | 415K |
| 代理商： | SN74ALVCH244DWR |
www.ti.com
FEATURES
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11
1OE
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
GND
VCC
2OE
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
2A1
DGV, DW, NS, OR PW PACKAGE
(TOP VIEW)
DESCRIPTION/ORDERING INFORMATION
SN74ALVCH244
OCTAL BUFFER/DRIVER
WITH 3-STATE OUTPUTS
SCES112F – JULY 1997 – REVISED AUGUST 2004
Operates From 1.65 V to 3.6 V
Max tpd of 2.8 ns at 3.3 V
±24-mA Output Drive at 3.3 V
Bus Hold on Data Inputs Eliminates the Need
for External Pullup/Pulldown Resistors
Latch-Up Performance Exceeds 250 mA Per
JESD 17
ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
This octal buffer/line driver is designed for 1.65-V to 3.6-V VCC operation.
The SN74ALVCH244 is organized as two 4-bit line drivers with separate output-enable (OE) inputs. When OE is
low, the device passes 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 holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors
with the bus-hold circuitry is not recommended.
ORDERING INFORMATION
TA
PACKAGE(1)
ORDERABLE PART NUMBER
TOP-SIDE MARKING
Tube
SN74ALVCH244DW
SOIC - DW
ALVCH244
Tape and reel
SN74ALVCH244DWR
SOP - NS
Tape and reel
SN74ALVCH244NSR
ALVCH244
-40
°C to 85°C
Tube
SN74ALVCH244PW
TSSOP - PW
VB244
Tape and reel
SN74ALVCH244PWR
TVSOP - DGV
Tape and reel
SN74ALVCH244DGVR
VB244
(1)
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
FUNCTION TABLE
(each buffer)
INPUTS
OUTPUT
Y
OE
A
L
H
L
H
X
Z
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright 1997–2004, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| SN74ALVCH244DWRE4 | 功能描述:緩沖器和線路驅動器 16-Bit Bus Trnscvrs With 3-State Outputs RoHS:否 制造商:Micrel 輸入線路數量:1 輸出線路數量: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 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| SN74ALVCH244DWRG4 | 功能描述:緩沖器和線路驅動器 Octal Buffer Driver RoHS:否 制造商:Micrel 輸入線路數量:1 輸出線路數量: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 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| SN74ALVCH244NSR | 功能描述:緩沖器和線路驅動器 Octal Buffer/Driver With 3-State Outputs RoHS:否 制造商:Micrel 輸入線路數量:1 輸出線路數量: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 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| SN74ALVCH244NSRE4 | 功能描述:緩沖器和線路驅動器 16-Bit Bus Trnscvrs With 3-State Outputs RoHS:否 制造商:Micrel 輸入線路數量:1 輸出線路數量: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 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| SN74ALVCH244NSRG4 | 功能描述:緩沖器和線路驅動器 Octal Buffer Driver RoHS:否 制造商:Micrel 輸入線路數量:1 輸出線路數量: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 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
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