Philips Semiconductors

Product specification

74LVC244A

74LVCH244A

Octal buffer/line driver with 5-volt

tolerant inputs/outputs (3-State)

1998 May 20

5

DC ELECTRICAL CHARACTERISTICS

Over recommended operating conditions voltages are referenced to GND (ground = 0V)

LIMITS

SYMBOL

PARAMETER

TEST CONDITIONS

Temp = -40

°C to +85°C

UNIT

MIN

MAX

V

HIGH level Input voltage

V

HIGH level Input voltage

2.0

V

V

LOW level Input voltage

GND

V

LOW level Input voltage

0.8

V

HIGH level output voltage

V

HIGH level output voltage

V

0.40

LOW level output voltage

GND

0.20

V

0.55

I

Input leakage current

V

=3 6V; V = 5 5V or GND

"01

"5

µA

Input leakage current

"0.1

"5

µA

3-State output OFF-state current

0.1

"5

µA

Power off leakage supply

0.1

"10

µA

Quiescent supply current

0.1

10

µA

Additional quiescent supply current

per input pin

5

500

µA

Bushold LOW sustaining

75

–

–

µA

Bushold HIGH sustaining

–75

–

–

µA

500

–

–

µA

–500

–

–

µA

NOTES:

2. Valid for data inputs of bushold parts (LVCH-A) only.

3. For data inputs only, control inputs do not have a bushold circuit

4. The specified sustaining current at the data inputs do not have a bushold circuit.

5. The specified overdrive current at the data input forces the data input to the opposite logic input state.