IDT74ALVCH16952 datasheet(1/6 Pages) IDT | 3.3V CMOS 16-BIT REGISTERED TRANSCEIVER WITH 3-STATE OUTPUTS AND BUS-HOLD

Part No.	IDT74ALVCH16952

Description	3.3V CMOS 16-BIT REGISTERED TRANSCEIVER WITH 3-STATE OUTPUTS AND BUS-HOLD

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Manufacturer	IDT [Integrated Device Technology]

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INDUSTRIALTEMPERATURERANGE

IDT74ALVCH16952

3.3VCMOS16-BITREGISTEREDTRANSCEIVERWITH3-STATEOUTPUTS

1

MARCH 1999

INDUSTRIAL TEMPERATURE RANGE

The IDT logo is a registered trademark of Integrated Device Technology, Inc.

DSC-4227/1

FEATURES:

• 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

FUNCTIONAL BLOCK DIAGRAM

IDT74ALVCH16952

APPLICATIONS:

• 3.3V high speed systems

• 3.3V and lower voltage computing systems

DRIVE FEATURES:

• High Output Drivers: ±24mA

• Suitable for heavy loads

3.3V CMOS 16-BIT

REGISTERED TRANSCEIVER

WITH 3-STATE OUTPUTS

AND BUS-HOLD

DESCRIPTION:

This 16-bit registered transceiver is built using advanced dual metal

CMOS technology. The ALVCH16952 contains two sets of D-type flip-flops

for temporary storage of data flowing in either direction. This device can be

used as two 8-bit transceivers or one 16-bit transceiver. Data on the A or

B bus is stored in the registers on the low-to-high transition of the clock

(CLKAB or CLKBA) input provided that the clock-enable (CLKENAB or

CLKENBA) input is low. Taking the output-enable (OEAB or OEBA) input

low accesses the data on either port.

The ALVCH16952 has been designed with a ±24mA output driver. This

driver is capable of driving a moderate to heavy load while maintaining

speed performance.

The ALVCH16952 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.

C

CE

D

C

CE

D

1

OEAB

1

CLKEN AB

1

C LKAB

1

O EBA

1

A1

1

B1

TO SEVEN OTHER CH ANN ELS

1

CLKEN BA

1

C LKBA

54

55

1

3

2

56

5

52

C

CE

D

C

CE

D

2

OEAB

2

CLKEN AB

2

C LKAB

2

OEBA

2

A1

2

B1

TO SEVEN OTHER CH ANNELS

2

CLKEN BA

2

C LKBA

31

30

28

26

27

29

15

42

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