PI74FCT280T

9-BIT PARITY GENERATOR/CHECKER

2

PS2014A 03/11/96

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PI74FCT280T 14-Pin SOIC Configuration

Inputs

Outputs

Function

ΣΣΣΣΣe

ΣΣΣΣΣo

Even Parity

No. of Bits at TTL High

H

L

= 0, 2, 4, 6, 8

Odd Parity

No. of Bits at TTL High

L

H

= 1, 3, 5, 7, 9

Truth Table

(1)

Note:

1.

H = High Voltage Level

L = Low Voltage Level

Pin Name

Description

Data In

Σe

Even Parity Out

Σo

Odd Parity Out

GND

Ground

Power

Product Pin Description

Maximum Ratings

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

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 +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.

Parameters

(1)

Description

Test Conditions

Typ

Max.

Units

Input Capacitance

6

10

pF

Output Capacitance

8

12

pF

Notes:

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

PI74FCT280T 16-Pin QSOP Configuration

1

14

2

13

3

NC

12

4

11

5

Σe

10

6

Σo

9

7

GND

8

14-PIN

W14

1

16

2

15

3

NC

14

4

13

5

Σe

12

6

Σo

11

7

NC

10

NC

8

GND

9

16-PIN

Q16