PI74FCT191T datasheet(3/6 Pages) PERICOM

3 / 6 page

PS2084B

01/13/97

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PI74FCT191T

(25

Ω

Ω SERIES) PI74FCT2191T

4-BIT BINARY COUNTERS

Storage Temperature ................................................................. –65°C to +150°C

Ambient Temperature with Power Applied ................................. -40°C to +85°C

Supply Voltage to Ground Potential (Inputs & Vcc Only) .......... –0.5V to +7.0V

Supply Voltage to Ground Potential (Outputs & D/O Only) ....... –0.5V to +7.0V

DC Input Voltage ......................................................................... –0.5V to +7.0V

DC Output Current ................................................................................... 120 mA

Power Dissipation ......................................................................................... 0.5W

Note:

Stresses greater than those listed under

MAXIMUM RATINGS may cause permanent

damage to the device. This is a stress rating

only and functional operation of the device at

these or any other conditions above those

indicated in the operational sections of this

specification is not implied. Exposure to

absolute maximum rating conditions for

extended periods may affect reliability.

DC Electrical Characteristics (Over the Operating Range, TA = –40°C to +85°C, VCC = 5.0V ± 5%)

Parameters

Description

Test Conditions

(1)

Min. Typ

(2)

Max. Units

VOH

Output HIGH Voltage

VCC = Min., VIN = VIH or VIL

IOH = –15.0 mA

2.4

3.0

VOL

Output LOW Current

VCC = Min., VIN = VIH or VIL

IOL = 48 mA

0.3

0.50

VOL

Output LOW Current

VCC = Min., VIN = VIH or VIL

IOL = 12 mA (25

Ω Series)

0.3

0.50

VIH

Input HIGH Voltage

Guaranteed Logic HIGH Level

2.0

VIL

Input LOW Voltage

Guaranteed Logic LOW Level

0.8

IIH

Input HIGH Current

VCC = Max.

VIN = VCC

1µA

IIL

Input LOW Current

VCC = Max.

VIN = GND

–1

µA

VIK

Clamp Diode Voltage

VCC = Min., IIN = –18 mA

–0.7

–1.2

IOFF

Power Down Disable

VCC = GND, VOUT = 4.5V

—

100

µA

IOS

Short Circuit Current

VCC = Max.

(3), VOUT = GND

–60

–120

Input Hysteresis

200

Capacitance (TA = 25°C, f = 1 MHz)

Parameters(4)

Description

Test Conditions

Typ

Max.

Units

CIN

Input Capacitance

VIN = 0V

COUT

Output Capacitance

VOUT = 0V

Notes:

1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.

2. Typical values are at VCC = 5.0V, +25°C ambient and maximum loading.

3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.

4. This parameter is determined by device characterization but is not production tested.

Maximum Ratings

(Above which the useful life may be impaired. For user guidelines, not tested.)

Maximum Ratings

(Above which the useful life may be impaired. For user guidelines, not tested.)

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