HD74LS54

Rev.2.00, Feb.18.2005, page 2 of 3

Absolute Maximum Ratings

Item

Symbol

Ratings

Unit

Supply voltage

7

V

Input voltage

7

V

Power dissipation

400

mW

Storage temperature

Tstg

–65 to +150

°C

Note:

Voltage value, unless otherwise noted, are with respect to network ground terminal.

Recommended Operating Conditions

Item

Symbol

Min

Typ

Max

Unit

Supply voltage

Vcc

4.75

5.00

5.25

V

—

—

–400

µA

Output current

—

—

8

mA

Operating temperature

Topr

–20

25

75

°C

Electrical Characteristics

(Ta = –20 to +75 °C)

Item

Symbol

min.

typ.*

max.

Unit

Condition

2.0

—

—

V

Input voltage

—

—

0.8

V

2.7

—

—

V

µA

—

—

0.5

Output voltage

—

—

0.4

V

—

—

20

µA

—

—

–0.4

mA

Input current

—

—

0.1

mA

Short-circuit output

current

–20

—

–100

mA

—

0.8

1.6

mA

Supply current

—

1.0

2.0

mA

Input clamp voltage

—

—

–1.5

V

Note:

Switching Characteristics

Item

Symbol

min.

typ.

max.

Unit

Condition

—

12

20

ns

Propagation delay time

—

12.5

20

ns

Ω

Note:

Refer to Test Circuit and Waveform of the Common Item "TTL Common Matter (Document No.: REJ27D0005-

0100)".