IDT74LVC162245A
3.3V CMOS 16-BIT TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
3.3V CMOS 16-BIT
BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
AND 5 VOLT TOLERANT I/O
鈥?Typical t
SK(o)
(Output Skew) < 250ps
鈥?ESD > 2000V per MIL-STD-883, Method 3015; > 200V using
machine model (C = 200pF, R = 0)
鈥?V
CC
= 3.3V 鹵 0.3V, Normal Range
鈥?V
CC
= 2.7V to 3.6V, Extended Range
鈥?CMOS power levels (0.4碌 W typ. static)
碌
鈥?All inputs, outputs, and I/O are 5V tolerant
鈥?Available in SSOP, TSSOP, and TVSOP packages
IDT74LVC162245A
FEATURES:
DESCRIPTION:
DRIVE FEATURES:
APPLICATIONS:
鈥?Balanced Output Drivers: 鹵12mA (A port)
鈥?High Output Drivers: 鹵24mA (B port)
鈥?5V and 3.3V mixed voltage systems
鈥?Data communication and telecommunication systems
This 16-bit transceiver is built using advanced dual metal CMOS
technology. The LVC162245A is designed for asynchronous communica-
tion 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. To
ensure the high-impedance state during power up or power down,
OE
should be tied to V
CC
through a pullup resistor; the minimum value of the
resistor is determined by the current-sinking capability of the driver.
All pins can be driven from either 3.3V or 5V devices. This feature allows
the use of this device as a translator in a mixed 3.3V/5V supply system.
The LVC162245A has series resistors in the device output structure of
the 鈥淎鈥?port which will significantly reduce line noise when used with light
loads. The driver has been designed to drive 鹵12mA at the designated
threshold levels. The 鈥淏鈥?port has a 鹵24mA driver.
FUNCTIONAL BLOCK DIAGRAM
1
DIR
1
48
24
2
DIR
25
1
OE
1
A
1
47
2
46
2
OE
2
A
1
36
13
35
1
B
1
2
A
2
2
B
1
1
A
2
3
1
B
2
1
A
3
44
5
43
6
33
14
2
B
2
2
A
3
16
1
B
3
32
2
B
3
2
A
4
17
1
A
4
1
B
4
1
A
5
41
8
2
B
4
2
A
5
30
19
1
B
5
1
A
6
40
9
38
11
2
B
5
2
A
6
1
B
6
2
A
7
1
B
7
29
20
27
22
2
B
6
1
A
7
2
B
7
2
A
8
26
23
1
A
8
37
12
1
B
8
2
B
8
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
漏 1999 Integrated Device Technology, Inc.
AUGUST 1999
DSC-4483/1
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