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IDT74LVC4245APG Datasheet

  • IDT74LVC4245APG

  • Single 8-bit Bus Transceiver

  • 146.56KB

  • 8頁

  • ETC

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IDT74LVC4245A
CMOS OCTAL BUS TRANSCEIVER AND 3.3V TO 5V SHIFTER
INDUSTRIAL TEMPERATURE RANGE
CMOS OCTAL BUS
TRANSCEIVER AND 3.3V TO 5V
SHIFTER WITH 3-STATE OUT-
PUTS AND 5 VOLT TOLERANT I/O
FEATURES:
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
0.5 MICRON CMOS Technology
V
CCA
= 5V 鹵0.5V
V
CCB
= 2.7V to 3.6V
CMOS power levels (0.4碌 W typ. static)
Rail-to-Rail output swing for increased noise margin
All inputs, outputs and I/O are 5 Volt tolerant
Supports hot insertion
Available in SOIC, SSOP, QSOP, and TSSOP packages
IDT74LVC4245A
DESCRIPTION:
The LVC4245A is manufactured using advanced dual metal CMOS
technology. This octal noninverting bus transceiver contains two separate
supply rails; B port has V
CCB
, which is set at 3.3V, and A port has V
CCA
,
which is set at 5V. This allows for translation from a 3.3V to a 5V
environment, and vice-versa.
This device is ideal for asynchronous communication between two buses
(A and B). The direction control pin (DIR) controls the direction of data flow.
The output enable pin (OE) overrides the direction control and disables
both ports. All inputs are designed with hysteresis for improved noise
margin.
The LVC4245A has been designed with a 鹵24mA output driver. This
driver is capable of driving a moderate to heavy load while maintaining
speed performance.
Drive Features for LVC4245A:
鈥?High Output Drivers:
鹵24mA
鈥?Reduced system switching noise
APPLICATIONS:
鈥?5V and 3.3V mixed voltage systems
鈥?Data communication and telecommunication systems
FUNCTIONAL BLOCK DIAGRAM
2
DIR
22
3
21
4
20
5
19
6
18
7
17
8
16
9
15
OE
A
1
B
1
A
2
B
2
A
3
B
3
A
4
5V Port
B
4
A
5
B
5
A
6
B
6
A
7
B
7
A
8
10
14
B
8
INDUSTRIAL TEMPERATURE RANGE
1
c
1999 Integrated Device Technology, Inc.
3.3V Port
JULY 2000
DSC-4754/-

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