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IDT74LVCH245A

3.3V CMOS OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS, 5 VOLT TOLERANT I/O AND BUS-HOLD

Integrated Device Technology 

IDT74LVCH245A

3.3V CMOS OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS

INDUSTRIAL TEMPERATURE RANGE

OUTPUT DRIVE CHARACTERISTICS

Symbol

Parameter

Test Conditions(1)

VOH

Output HIGH Voltage

VCC = 2.3V to 3.6V

IOH = – 0.1mA

VCC = 2.3V

IOH = – 6mA

VCC = 2.3V

IOH = – 12mA

VCC = 2.7V

VCC = 3V

VCC = 3V

IOH = – 24mA

VOL

Output LOW Voltage

VCC = 2.3V to 3.6V

IOL = 0.1mA

VCC = 2.3V

IOL = 6mA

IOL = 12mA

VCC = 2.7V

IOL = 12mA

VCC = 3V

IOL = 24mA

Min.

Max.

Unit

VCC – 0.2

—

V

2

—

1.7

—

2.2

—

2.4

—

2.2

—

—

0.2

V

—

0.4

—

0.7

—

0.4

—

0.55

NOTE:

1. VIH and VIL must be within the min. or max. range shown in the DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE table for the appropriate VCC range.

TA = – 40°C to + 85°C.

OPERATING CHARACTERISTICS, VCC = 3.3V ± 0.3V, TA = 25°C

Symbol

CPD

CPD

Parameter

Power Dissipation Capacitance per Transceiver Outputs enabled

Power Dissipation Capacitance per Transceiver Outputs disabled

Test Conditions

CL = 0pF, f = 10Mhz

Typical

Unit

47

pF

2

SWITCHING CHARACTERISTICS(1)

Symbol

tPLH

tPHL

tPZH

tPZL

tPHZ

tPLZ

tSK(o)

Parameter

Propagation Delay

Ax to Bx, Bx to Ax

Output Enable Time

OE to Ax or Bx

Output Disable Time

OE to Ax or Bx

Output Skew(2)

VCC = 2.7V

Min.

Max.

—

7.3

—

9.5

—

8.5

—

—

NOTES:

1. See TEST CIRCUITS AND WAVEFORMS. TA = – 40°C to + 85°C.

2. Skew between any two outputs of the same package and switching in the same direction.

VCC = 3.3V ± 0.3V

Min.

Max.

Unit

1.5

6.3

ns

1.5

8.5

ns

1.7

7.5

ns

—

1

ns

4

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