CY74FCT163244APVC datasheet(2/7 Pages) TI

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CY74FCT163244

CY74FCT163H244

Maximum Ratings[3,4]

(Above which the useful life may be impaired. For user guide-

lines, not tested.)

Storage Temperature ................................. –55

°C to +125°C

Ambient Temperature with

Power Applied............................................ –55

°C to +125°C

Supply Voltage Range ..................................... 0.5V to +4.6V

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

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

DC Output Current

(Maximum Sink Current/Pin) ........................–60 to +120 mA

Power Dissipation .......................................................... 1.0W

Pin Description

Name

Description

Three-State Output Enable Inputs (Active LOW)

Data Inputs[1]

Three-State Outputs

Function Table[2]

Inputs

Outputs

Operating Range

Range

Ambient

Temperature

VCC

Industrial

–40

°C to +85°C

2.7V to 3.6V

Electrical Characteristics for Non Bus Hold Devices Over the Operating Range VCC=2.7V to 3.6V

Parameter

Description

Test Conditions

Min.

Typ.[5]

Max.

Unit

VIH

Input HIGH Voltage

All Inputs

2.0

5.5

VIL

Input LOW Voltage

0.8

Input Hysteresis[6]

100

VIK

Input Clamp Diode Voltage

VCC=Min., IIN=–18 mA

–0.7

– 1.2

IIH

Input HIGH Current

VCC=Max., VI=5.5

±1

µA

IIL

Input LOW Current

VCC=Max., VI=GND

±1

µA

IOZH

High Impedance Output Current

(Three-State Output pins)

VCC=Max., VOUT=5.5V

±1

µA

IOZL

High Impedance Output Current

(Three-State Output pins)

VCC=Max., VOUT=GND

±1

µA

IOS

Short Circuit Current[7]

VCC=Max., VOUT=GND

–60

–135

–240

IOFF

Power-Off Disable

VCC=0V, VOUT≤4.5V

±100

µA

ICC

Quiescent Power Supply Current

VIN≤0.2V,

VIN>VCC–0.2V

VCC=Max.

0.1

µA

∆I

Quiescent Power Supply Current

(TTL inputs HIGH)

VIN=VCC–0.6V

[8]

VCC=Max.

2.0

µA

Notes:

On the CY74FCT163H244, these pins have “bus hold.”

H = HIGH Voltage Level. L = LOW Voltage Level. X = Don’t Care. Z = High Impedance.

Operation beyond the limits set forth may impair the useful life of the device. Unless otherwise noted, these limits are over the operating free-air temperature

range.

With the exception of inputs with bus hold, unused inputs must always be connected to an appropriate logic voltage level, preferably either VCC or ground.

Typical values are at VCC=3.3V, TA = +25˚C ambient.

This parameter is speciﬁed but not tested.

Not more than one output should be shorted at a time. Duration of short should not exceed one second. The use of high-speed test apparatus and/or sample

and hold techniques are preferable in order to minimize internal chip 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 parametric tests. In any sequence of parameter

tests, IOS tests should be performed last.

Per TTL driven input; all other inputs at VCC or GND.

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