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IDT74ALVCHR162245 Datasheet(PDF) 1 Page - Integrated Device Technology

Part No. IDT74ALVCHR162245
Description  3.3V CMOS 16-BIT BUS TRANSCIEVER WITH 3-STATE OUTPUTS AND BUS-HOLD
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

IDT74ALVCHR162245 Datasheet(HTML) 1 Page - Integrated Device Technology

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INDUSTRIAL TEMPERATURE RANGE
IDT74ALVCHR162245
3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
1
MARCH 1999
INDUSTRIAL TEMPERATURE RANGE
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
© 1999 Integrated Device Technology, Inc.
DSC-4606/1
FEATURES:
• 0.5 MICRON CMOS Technology
• Typical tSK(o) (Output Skew) < 250ps
• ESD > 2000V per MIL-STD-883, Method 3015; > 200V using
machine model (C = 200pF, R = 0)
•VCC = 3.3V ± 0.3V, Normal Range
•VCC = 2.7V to 3.6V, Extended Range
•VCC = 2.5V ± 0.2V
• CMOS power levels (0.4
µµµµµ W typ. static)
• Rail-to-Rail output swing for increased noise margin
• Available in SSOP, TSSOP, and TVSOP packages
FUNCTIONAL BLOCK DIAGRAM
IDT74ALVCHR162245
3.3V CMOS 16-BIT
BUS TRANSCIEVER
WITH 3-STATE OUTPUTS
AND BUS-HOLD
APPLICATIONS:
• 3.3V high speed systems
• 3.3V and lower voltage computing systems
DRIVE FEATURES:
• Balanced Output Drivers: ±12mA
• Low Switching Noise
DESCRIPTION:
This 16-bit bus transceiver is built using advanced dual metal CMOS
technology. The ALVCHR162245 device is designed for asynchronous
communication between data buses. The control-function implementation
minimizes external timing requirements.
This device can be used as two 8-bit transceivers or one 16-bit
transceiver. It allows data transmission from the A bus to the B bus or from
the B bus to the A bus, depending on the logic level at the direction control
(DIR) input. The output-enable (OE) input can be used to disable the
device so that the buses are effectively isolated.
The ALVCHR162245 has series resistors in the device output structure
which will significantly reduce line noise when used with light loads. This
driver has been designed to drive ±12mA at the designated threshold
levels.
The ALVCHR162245 has “bus-hold” which retains the inputs’ last state
whenever the input bus goes to a high impedance. This prevents floating
inputs and eliminates the need for pull-up/down resistors.
1
DIR
1
A1
1
A2
1
A3
1
A4
1
A5
1
A6
1
A7
1
A8
1
B8
1
B 7
1
B 6
1
B5
1
B4
1
B 3
1
B2
1
B1
1
OE
2
DIR
2
A1
2
A2
2
A3
2
A4
2
A5
2
A6
2
A7
2
A8
2
B8
2
B 7
2
B 6
2
B5
2
B4
2
B3
2
B2
2
B1
2
OE
1
47
46
44
43
41
40
38
37
12
11
9
8
6
5
3
2
48
24
36
35
33
32
30
29
27
26
23
22
20
19
17
16
14
13
25


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