HD74LS77

Rev.3.00, Jul.22.2005, page 2 of 4

Block Diagram (1/4)

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Data

Q

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

4.75

5.00

5.25

V

—

—

–400

µA

Output current

—

—

8

mA

Operating temperature

Topr

–20

25

75

°C

Pulse width

20

—

—

ns

Setup time

20

—

—

ns

Hold time

5

—

—

ns

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

—

—

0.4

Output voltage

—

—

0.5

V

D

—

—

20

G

—

—

80

µA

D

—

—

–0.4

G

—

—

–1.6

mA

D

—

—

0.1

Input current

G

—

—

0.4

mA

Short-circuit output

current

–20

—

–100

mA

Supply current**

—

6.9

13

mA

Input clamp voltage

—

—

–1.5

V