INDUSTRIAL TEMPERATURE RANGE

IDT74ALVCH162245

3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS

1

AUGUST 2016

INDUSTRIAL TEMPERATURE RANGE

IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc.

© 2016 Integrated Device Technology, Inc.

DSC-4748/6

FEATURES:

• 0.5 MICRON CMOS Technology

• ESD > 2000V per MIL-STD-883, Method 3015; > 200V using

machine model (C = 200pF, R = 0)

• CMOS power levels (0.4

μμμμμ W typ. static)

• Rail-to-Rail output swing for increased noise margin

• Available in TSSOP package

FUNCTIONAL 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 com-

munication 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 ALVCH162245 has series resistors in the device out-put struc-

ture 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 FEATURES:

• Balanced Output Drivers: ±12mA (A port)

• High Output Drivers: ±24mA (B port)

1

DIR

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

OE

2

DIR

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

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