INDUSTRIAL TEMPERATURE RANGE

IDT74ALVCHR162245

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

1

SEPTEMBER 2016

INDUSTRIAL TEMPERATURE RANGE

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

© 2016 Integrated Device Technology, Inc.

DSC-4606/6

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

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

driverhasbeendesignedtodrive±12mAatthedesignatedthresholdlevels.

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

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