HD74LS123 datasheet(3/9 Pages) RENESAS

3 / 9 page

HD74LS123

Rev.2.00, Feb.18.2005, page 3 of 8

Absolute Maximum Ratings

Item

Symbol

Ratings

Unit

Supply voltage

VCC

Input voltage

VIN

Power dissipation

400

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

IOH

—

–400

µA

Output current

IOL

—

Operating temperature

Topr

–20

°C

“H”

—

A, B

“L”

—

Input pulse width

CLR

“L”

tw (in)

—

External timing resistance

Rext

—

260

Ω

External capacitance

Cext

Non restriction

Wiring capacitance at Rext/Cext terminal

—

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

* VCC = 5 V, Ta = 25°C

** With all outputs open and 4.5 V applied to all data and clear inputs, ICC is measured after a momentary ground, then

4.5 V, is applied to clock.

Note:

To measure VOH at Q, VOL at Q, or IOS at Q, ground Rext / Cext, apply 2 V to B and clear, and pulse A from

2 V to 0 V.

HD74LS123 датащи(PDF) 3 Page - Renesas Technology Corp

HD74LS123 датащи(HTML) 3 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9

датащи скачать

ссылки URL