HD74LS259 datasheet(4/8 Pages) RENESAS

4 / 8 page

HD74LS259

Rev.2.00, Feb.18.2005, page 4 of 7

Electrical Characteristics

(Ta = –20 to +75 °C)

Item

Symbol

min.

typ.*

max.

Unit

Condition

VIH

2.0

—

Input voltage

VIL

—

0.8

VOH

2.7

—

VCC = 4.75 V, VIH = 2 V, VIL = 0.8 V,

IOH = –400

µA

—

0.4

IOL = 4 mA

Output voltage

VOL

—

0.5

IOL = 8 mA

VCC = 4.75 V, VIH = 2 V,

VIL = 0.8 V

IIH

—

µA

VCC = 5.25 V, VI = 2.7 V

IIL

—

–0.4

VCC = 5.25 V, VI = 0.4 V

Input current

—

0.1

VCC = 5.25 V, VI = 7 V

Short-circuit output current

IOS

–20

—

–100

VCC = 5.25 V

Supply current**

ICC

—

VCC = 5.25 V

Input clamp voltage

VIK

—

–1.5

VCC = 4.75 V, IIN = –18 mA

Notes: * VCC = 5 V, Ta = 25°C

** ICC is measured with all outputs open and all inputs grounded.

Switching Characteristics

(VCC = 5 V, Ta = 25°C)

Item

Symbol

Inputs

Output

min.

typ.

max.

Unit

Condition

tPHL

Clear

Q0 to Q7

—

tPLH

—

tPHL

Data

Q0 to Q7

—

tPLH

—

tPHL

Address

Q0 to Q7

—

tPLH

—

Propagation delay time

tPHL

Enable

Q0 to Q7

—

CL = 15 pF,

RL = 2 k

Ω

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