HD74LS240 データシートの表示（PDF） - Renesas Electronics

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HD74LS240

Octal Buffers / Line Drivers / Line Receivers (inverted three-state outputs)

Renesas Electronics 

HD74LS240

Electrical Characteristics

Item

Symbol min. typ.*

Input voltage

Hysteresis

VIH

2.0

—

VIL

—

—

VT+ – VT–

0.2

0.4

Output voltage

2.4

—

VOH

2.0

—

—

—

VOL

—

—

Off-state output current

IOZH

—

—

IOZL

—

—

Input current

IIH

—

—

IIL

—

—

II

—

—

Short-circuit output

current

IOS

–40

—

Outputs

high

—

13

Supply Outputs

current** low

ICC

—

26

All outputs

disabled

—

29

Input clamp voltage

VIK

—

—

Notes: * VCC = 5 V, Ta = 25°C

** ICC is measured with all outputs open.

max.

—

0.8

—

—

—

0.4

0.5

20

–20

20

–0.2

0.1

–225

23

44

50

–1.5

Unit

V

V

V

V

V

µA

µA

µA

mA

mA

mA

(Ta = –20 to +75 °C)

Condition

VCC = 4.75 V

VIL = 0.8 V, IOH = – 3 mA VCC = 4.75

VIL = 0.5 V, IOH = – 15 mA V, VIH = 2 V

IOL = 12 mA VCC = 4.75 V, VIH = 2 V,

IOL = 24 mA VIL = 0.8 V

VO = 2.7 V VCC = 5.25 V, VIH = 2 V,

VO = 0.4 V

VIL = 0.8 V

VCC = 5.25 V, VI = 2.7 V

VCC = 5.25 V, VI = 0.4 V

VCC = 5.25 V, VI = 7 V

VCC = 5.25 V

mA VCC = 5.25 V

V

VCC = 4.75 V, IIN = –18 mA

Switching Characteristics

(VCC = 5 V, Ta = 25°C)

Item

Symbol

min.

typ.

max.

Unit

Condition

Propagation delay time

tPLH

—

9

14

ns

Output enable time

tPHL

—

tZL

—

12

20

18

30

ns

CL = 45 pF, RL = 667 Ω

tZH

—

15

23

ns

Output disable time

tLZ

tHZ

—

—

15

10

25

18

ns

ns

CL = 5 pF, RL = 667 Ω

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

0100)".

Rev.2.00, Feb.18.2005, page 3 of 5

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