INDUSTRIALTEMPERATURERANGE

IDT74LVCH16652

3.3V CMOS 16-BIT BUS TRANSCEIVER AND REGISTER

3

Inputs

xOEAB

xOEBA

xCLKAB

xCLKBA

xSAB

xSBA

xAx

xBx

Operation or Function

L

H

H or L

H or L

X

X

Input

Input

Isolation

LH

↑↑

X

X

Input

Input

Store A and B Data

XH

↑

H or L

X

X

Input

Store A, hold B

HH

↑↑

X

Input

Output

StoreAinbothregisters

L

X

H or L

↑

X

X

Input

Hold A, store B

LL

↑↑

Output

Input

StoreBinbothregisters

L

L

X

X

X

L

Output

Input

Real time B data to A bus

L

L

X

H or L

X

H

Output

Input

Stored B data to A bus

H

H

X

X

L

X

Input

Output

Real time A data to B bus

H

H

H or L

X

H

X

Input

Output

Stored A data to B bus

H

L

H or L

H or L

H

H

Output

Output

Stored A data to B Bus and

Stored B data to A bus

NOTES:

1. H = HIGH Voltage Level

L = LOW Voltage Level

X = Don't Care

2. The data output functions may be enabled or disabled by various signals at the xOEAB or xOEBA inputs. Data input functions are always enabled, i.e. data at the bus pins will

be stored on every LOW-to-HIGH transition on the clock inputs.

3. Select control = L: clocks can occur simultaneously.

Select control = H: clocks must be staggered to load both registers.

Symbol

Parameter

Test Conditions

Min.

Max.

Unit

Input HIGH Voltage Level

1.7

—

—

V

2

—

—

Input LOW Voltage Level

—

—

0.7

V

—

—

0.8

Input Leakage Current

—

—

±5µA

High Impedance Output Current

—

—

±10

µA

(3-State Output pins)

Input/Output Power Off Leakage

—

—

±50

µA

Clamp Diode Voltage

—

–0.7

–1.2

V

Input Hysteresis

—

100

—

mV

Quiescent Power Supply Current

——

10

µA

3.6

——

10

Quiescent Power Supply Current

—

—

500

µA

Variation

DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE

FollowingConditionsApplyUnlessOtherwiseSpecified:

NOTES:

2. This applies in the disabled state only.