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Integrated Device - 3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS AND 5 VOLT TOLERANT I/O

Numéro de référence IDT74LVC162245APA
Description 3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS AND 5 VOLT TOLERANT I/O
Fabricant Integrated Device 
Logo Integrated Device 





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IDT74LVC162245APA fiche technique
IDT74LVC162245A
3.3V CMOS 16-BIT TRANSCEIVER WITH 3-STATE OUTPUTS
3.3V CMOS 16-BIT
BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
AND 5 VOLT TOLERANT I/O
INDUSTRIALTEMPERATURERANGE
IDT74LVC162245A
FEATURES:
• 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
• CMOS power levels (0.4µ W typ. static)
• All inputs, outputs, and I/O are 5V tolerant
• Available in SSOP, TSSOP, and TVSOP packages
DRIVE FEATURES:
• Balanced Output Drivers: ±12mA (A port)
• High Output Drivers: ±24mA (B port)
APPLICATIONS:
• 5V and 3.3V mixed voltage systems
• Data communication and telecommunication systems
FUNCTIONAL BLOCK DIAGRAM
DESCRIPTION:
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 VCC 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 “A” port which will significantly reduce line noise when used with light
loads. The driver has been designed to drive ±12mA at the designated
threshold levels. The “B” port has a ±24mA driver.
1DIR 1
1A1 47
46
1A2
1A3 44
1A4 43
41
1A5
40
1A6
1A7 38
1A8 37
48
1OE
2 1B1
3
1B2
5
1B3
6
1B4
8
1B5
9
1B6
11
1B7
12
1B8
24
2DIR
2A1 36
35
2A2
33
2A3
32
2A4
30
2A5
29
2A6
2A7 27
26
2A8
25
2OE
13 2B1
14
2B2
16
2B3
17
2B4
19 2B5
20
2B6
22
2B7
23
2B8
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
© 1999 Integrated Device Technology, Inc.
1
AUGUST 1999
DSC-4483/1

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