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參數(shù)資料
| 型號： | VB244 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS |
| 中文描述： | 八路緩沖器/ 3驅(qū)動態(tài)輸出 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大小： | 314K |
| 代理商： | VB244 |
www.ti.com
FEATURES
Operates From 1.65 V to 3.6 V
Max t
pd
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)
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
1OE
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
GND
V
CC
2OE
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
2A1
DGV, DW, NS, OR PW PACKAGE
(TOP VIEW)
DESCRIPTION/ORDERING INFORMATION
This octal buffer/line driver is designed for 1.65-V to 3.6-V V
CC
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.
SN74ALVCH244
OCTAL BUFFER/DRIVER
WITH 3-STATE OUTPUTS
SCES112F–JULY 1997–REVISED AUGUST 2004
To ensure the high-impedance state during power up or power down, OE should be tied to V
CC
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
T
A
PACKAGE
(1)
ORDERABLE PART NUMBER
SN74ALVCH244DW
SN74ALVCH244DWR
SN74ALVCH244NSR
SN74ALVCH244PW
SN74ALVCH244PWR
SN74ALVCH244DGVR
TOP-SIDE MARKING
Tube
Tape and reel
Tape and reel
Tube
Tape and reel
Tape and reel
SOIC - DW
ALVCH244
SOP - NS
ALVCH244
-40
°
C to 85
°
C
TSSOP - PW
VB244
TVSOP - DGV
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
OE
L
L
H
OUTPUT
Y
A
H
L
X
H
L
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.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright 1997–2004, Texas Instruments Incorporated
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| VB-24MC | 功能描述:通用繼電器 POWER RoHS:否 制造商:Omron Electronics 觸點形式:1 Form A (SPST-NO) 觸點電流額定值:150 A 線圈電壓:24 VDC 線圈電阻:144 Ohms 線圈電流:167 mA 切換電壓:400 V 安裝風(fēng)格:Chassis 觸點材料: |
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| VB-24MCU-E | 功能描述:通用繼電器 POWER RoHS:否 制造商:Omron Electronics 觸點形式:1 Form A (SPST-NO) 觸點電流額定值:150 A 線圈電壓:24 VDC 線圈電阻:144 Ohms 線圈電流:167 mA 切換電壓:400 V 安裝風(fēng)格:Chassis 觸點材料: |
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