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參數(shù)資料
| 型號： | IDT74LVCH245APY |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | Adjustable Precision Shunt Regulator 6-SC70 -40 to 85 |
| 中文描述： | LVC/LCX/Z SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20 |
| 封裝： | SSOP-20 |
| 文件頁數(shù)： | 1/6頁 |
| 文件大小： | 65K |
| 代理商： | IDT74LVCH245APY |
INDUSTRIAL TEMPERATURE RANGE
IDT74LVCH245A
3.3V CMOS OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS
1
OCT OBER 1999
INDUS T RIAL T E MPE RAT URE RANGE
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
1999 Integrated Device Technology, Inc.
DSC-4611/1
FEATURES:
0.5 MICRON CMOS Technology
ESD > 2000V per MIL-STD-883, Method 3015; > 200V using
machine model (C = 200pF, R = 0)
V
CC
= 3.3V ± 0.3V, Normal Range
V
CC
= 2.7V to 3.6V, Extended Range
CMOS power levels (0.4
μ
W typ. static)
Rail-to-rail output swing for increased noise margin
All inputs, outputs, and I/O are 5V tolerant
Supports hot insertion
Available in SOIC, SSOP, QSOP, and TSSOP packages
FUNCTIONAL BLOCK DIAGRAM
APPLICATIONS:
5V and 3.3V mixed voltage systems
Data communication and telecommunication systems
DRIV E FEATURES:
High Output Drivers: ±24mA
Reduced system switching noise
IDT74LVCH245A
DESCRIPTION:
The LVCH245A octal bus transceiver is built using advanced dual metal
CMOS technology. The device is designed for asynchronous communi-
cation between data buses. Data is transmtted fromthe A bus to the B bus
or fromthe B bus to the A bus, depending upon the logic level at the direction-
control (DIR) input. The output-enable (
OE
) input can be used to disable
the device so the buses are effectively isolated.
The LVCH245A has been designed with a ±24mA output driver. This
driver is capable of driving a moderate to heavy load while maintaining
speed performance.
The LVCH245A has “bus-hold” which retains the inputs’ last state
whenever the input goes to a high-impedance. This prevents floating
inputs and elimnates the need for pull-up/down resistors.
Inputs can be driven fromeither 3.3V or 5V devices. This feature allows
the use of this device as a translator in a mxed 3.3V/5V systemenviron-
ment.
3.3V CMOS OCTAL BUS
TRANSCEIVER WITH 3-STATE
OUTPUTS, 5 VOLT TOLERANT I/O
AND BUS-HOLD
DIR
A
1
B
1
OE
1
2
19
18
TO SEVEN OTHER CHANNELS
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