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參數(shù)資料
| 型號： | 74ALVC2245WMX |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | BUS TRANSCEIVER|SINGLE|8-BIT|AVC/ALVC-CMOS|SOP|20PIN|PLASTIC |
| 中文描述： | ALVC/VCX/A SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20 |
| 封裝： | 0.300 INCH, MS-013, SOIC-20 |
| 文件頁數(shù)： | 1/7頁 |
| 文件大?。?/td> | 85K |
| 代理商： | 74ALVC2245WMX |
2002 Fairchild Semiconductor Corporation
ds500717
www.fairchildsemi.com
February 2002
Revised February 2002
7
R
74ALVC2245
Low Voltage Bidirectional Transceiver
with 3.6V Tolerant Inputs and Outputs
and 26
Series Resistors in B Outputs
General Description
The ALVC2245 contains eight non-inverting bidirectional
buffers with 3-STATE outputs and is intended for bus ori-
ented applications. The T/R input determines the direction
of data flow. The OE input disables both the A and B ports
by placing them in a high impedance state.
The 74ALVC2245 is designed for low voltage (1.65V to
3.6V) V
CC
applications with I/O compatibility up to 3.6V.
The ALVC2245 is also designed with 26
series resistance
in the B Port outputs. This design reduces line noise in
applications such as memory address drivers, clock driv-
ers, and bus transceivers transmitters
The 74ALVC2245 is fabricated with an advanced CMOS
technology to achieve high-speed operation while main-
taining low CMOS power dissipation.
Features
I
1.65V to 3.6V V
CC
supply operation
I
3.6V tolerant inputs and outputs
I
26
series resistors in B Port outputs
I
Power-off high impedance inputs and outputs
I
Supports Live Insertion and Withdrawal (Note 1)
I
t
PD
(A to B)
4.9 ns max for 3.0V to 3.6V V
CC
6.1 ns max for 2.3V to 2.7V V
CC
9.8 ns max for 1.65V to 1.95V V
CC
I
Uses patented Quiet Series
noise/EMI reduction
circuitry
I
Latchup conforms to JEDEC JED78
I
ESD performance:
Human body model
>
2000V
Machine model
>
200V
Note 1:
To ensure the high impedance state during power up and power
down, OE
n
should be tied to V
CC
through a pull up resistor. The minimum
value of the resistor is determined by the current sourcing capability of the
driver.
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbol
Pin Descriptions
Quiet Series
is a trademark of Fairchild Semiconductor Corporation.
Order Number
74ALVC2245WM
74ALVC2245MTC
Package Number
M20B
MTC20
Package Description
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Pin Names
Description
OE
Output Enable Input (Active LOW)
T/R
Transmit/Receive Input
A
0
–
A
7
Side A Inputs or 3-STATE Outputs
B
0
–
B
7
Side B Inputs or 3-STATE Outputs
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