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74ALVCH162245 Datasheet(PDF) 1 Page - Integrated Device Technology

Part No. 74ALVCH162245
Description  3.3V CMOS 16-BIT BUS TRANSCIEVER WITH 3-STATE OUTPUTS AND BUS-HOLD
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Maker  IDT [Integrated Device Technology]
Homepage  http://www.idt.com
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74ALVCH162245 Datasheet(HTML) 1 Page - Integrated Device Technology

   
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INDUSTRIALTEMPERATURERANGE
IDT74ALVCH162245
3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS
1
APRIL 1999
INDUSTRIAL TEMPERATURE RANGE
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
© 1999 Integrated Device Technology, Inc.
DSC-4748/1
.EATURES:
• 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
.UNCTIONAL BLOCK DIAGRAM
IDT74ALVCH162245
3.3V CMOS 16-BIT BUS
TRANSCIEVER WITH
3-STATE OUTPUTS
AND BUS-HOLD
DESCRIPTION:
This 16-bit bus transceiver is built using advanced dual metal CMOS
technology. The ALVCH162245 is designed for asynchronous commu-
nication between data buses. The control-function implementation mini-
mizes 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 ALVCH162245 has series resistors in the device out-put structure
of the “A” port 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 “B” port has a ±24mA driver.
The ALVCH162245 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.
APPLICATIONS:
• 3.3V high speed systems
• 3.3V and lower voltage computing systems
DRIVE .EATURES:
• Balanced Output Drivers: ±12mA (A port)
• High Output Drivers: ±24mA (B port)
1
DIR
1
A 1
1
A2
1
A 3
1
A 4
1
A5
1
A6
1
A 7
1
A 8
1
B 8
1
B 7
1
B 6
1
B 5
1
B 4
1
B 3
1
B 2
1
B 1
1
OE
2
DIR
2
A1
2
A2
2
A 3
2
A 4
2
A5
2
A 6
2
A 7
2
A 8
2
B 8
2
B7
2
B6
2
B 5
2
B 4
2
B 3
2
B 2
2
B1
2
OE
1
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46
44
43
41
40
38
37
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11
9
8
6
5
3
2
48
24
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