74F27 Просмотр технического описания (PDF) - Philips Electronics

Номер в каталоге

Компоненты Описание

производитель

74F27

Triple 3-input NOR gate

Philips Electronics 

Philips Semiconductors

Triple 3-input NOR gate

Product specification

74F27

DC ELECTRICAL CHARACTERISTICS

(Over recommended operating free-air temperature range unless otherwise noted.)

SYMBOL

PARAMETER

TEST CONDITIONS1

LIMITS

UNIT

MIN TYP2 MAX

VOH

High-level output voltage

VCC = MIN, VIL = MAX

±10%VCC

2.5

V

VIH = MIN, IOH = MAX

±5%VCC

2.7

3.4

V

VOL

Low-level output voltage

VCC = MIN, VIL = MAX

±10%VCC

0.30 0.50

V

VIH = MIN, IOl = MAX

±5%VCC

0.30 0.50

V

VIK

Input clamp voltage

VCC = MIN, II = IIK

-0.73 -1.2

V

II

Input current at maximum input voltage VCC = MAX, VI = 7.0V

100

µA

IIH

High–level input current

VCC = MAX, VI = 2.7V

20

µA

IIL

Low–level input current

VCC = MAX, VI = 0.5V

-0.6

mA

IOS

Short-circuit output current3

VCC = MAX

-60

-150

mA

ICC

Supply current (total)

ICCH VCC = MAX

VIN = GND

4.0

5.5

mA

ICCL VCC = MAX

VIN = 4.5V

8.5

12.0

mA

NOTES:

1 For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable type.

2 All typical values are at VCC = 5V, Tamb = 25°C.

3 Not more than one output should be shorted at a time. For testing IOS, the use of high-speed test apparatus and/or sample-and-hold

techniques are preferable in order to minimize internal heating and more accurately reflect operational values. Otherwise, prolonged shorting

of a high output may raise the chip temperature well above normal and thereby cause invalid readings in other parameter tests. In any

sequence of parameter tests, IOS tests should be performed last.

AC ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

TEST

CONDITION

tPLH

tPHL

Propagation delay

Dna, Dnb, Dnc to Qn

Waveform 1

VCC = +5.0V

Tamb = +25°C

CL = 50pF, RL = 500Ω

MIN TYP MAX

2.0

3.5

5.0

1.0

2.5

4.5

LIMITS

VCC = +5.0V ± 10%

Tamb = 0°C to +70°C

CL = 50pF, RL = 500Ω

MIN

MAX

1.5

5.5

1.0

4.5

VCC = +5.0V ± 10%

Tamb = –40°C to +85°C

CL = 50pF, RL = 500Ω

MIN

MAX

1.0

7.0

1.0

5.5

UNIT

ns

February 5, 1991

4

Share Link: