HD74LVC244A

Rev.4.00 Jul. 27, 2004 page 3 of 6

Recommended Operating Conditions

Item

Symbol

Ratings

Unit

Conditions

1.5 to 5.5

Data retention

Supply voltage

2.0 to 5.5

V

At operation

0 to 5.5

V

G, A

Output "H" or "L"

Input / output voltage

0 to 5.5

V

Operating temperature

Ta

–40 to 85

°C

–12

–24

*2

mA

12

Output current

24

*2

mA

Input rise / fall time

*1

10

ns/V

Notes: 1. This item guarantees maximum limit when one input switches.

Waveform: Refer to test circuit of switching characteristics.

2. Duty cycle

≤ 50%

Electrical Characteristics

Ta = –40 to 85°C

Item

Symbol

Min

Max

Unit

Test Conditions

2.7 to 3.6

2.0

—

4.5 to 5.5

×0.7 —

V

2.7 to 3.6

—

0.8

Input voltage

4.5 to 5.5

—

×0.3

V

2.7 to 5.5

—

2.7

2.2

—

3.0

2.4

—

3.0

2.2

—

4.5

3.8

—

V

2.7 to 5.5

—

0.2

2.7

—

0.4

3.0

—

0.55

Output voltage

4.5

—

0.55

V

Input current

0 to 5.5

—

±5.0

µA

Off state output current

2.7 to 5.5

—

±5.0

µA

Output leak current

0

—

20

µA

2.7 to 3.6

—

±10

2.7 to 5.5

—

10

µA

Quiescent supply current

3.0 to 3.6

—

500

µA