IDT74FCT299ATPB datasheet(2/7 Pages) IDT

2 / 7 page

6.11

IDT54/74FCT299T/AT/CT

FAST CMOS 8-INPUT UNIVERSAL SHIFT REGISTER

MILITARY AND COMMERCIAL TEMPERATURE RANGES

PIN CONFIGURATIONS

LCC

TOP VIEW

OE1

Vcc

P20-1

D20-1

SO20-2

SO20-8

E20-1

OE2

I/O6

I/O4

I/O2

GND

DS7

I/O7

I/O5

I/O

I/O1

I/O0

DS0

FUNCTION TABLE

(1)

Inputs

MR S1

Response

Asynchronous Reset Q0–Q7 = LOW

↑ Parallel Load; I/On → Qn

↑ Shift Right; DS0 → Q0, Q0 → Q1, etc.

↑ Shift Left; DS7 → Q7, Q7→ Q6, etc.

Hold

NOTE:

2632 tbl 02

1. H = HIGH Voltage Level

L = LOW Voltage Level

X = Don’t Care

↑ = LOW-to-HIGH clock transition

PIN DESCRIPTION

Pin Names

Description

Clock Pulse Input (Active Edge Rising)

DS0

Serial Data Input for Right Shift

DS7

Serial Data Input for Left Shift

S0, S1

Mode Select Inputs

Asynchronous Master Reset Input (Active LOW)

OE1, OE2

3-State Output Enable Inputs (Active LOW)

I/O0–I/O7

Parallel Data Inputs or 3-State Parallel Outputs

O0, O7

Serial Outputs

2632 tbl 01

Symbol

Parameter(1)

Conditions

Typ.

Max. Unit

CIN

Input

Capacitance

VIN = 0V

COUT

Output

Capacitance

VOUT = 0V

2632 lnk 04

NOTE:

1. This parameter is measured at characterization but not tested.

NOTES:

1. Stresses greater than those listed under ABSOLUTE MAXIMUM RAT-

INGS 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. No terminal voltage

may exceed VCC by +0.5V unless otherwise noted.

2. Input and VCC terminals only.

3. Outputs and I/O terminals only.

Symbol

Rating

Commercial

Military

Unit

VTERM(2) Terminal Voltage

with Respect to

GND

–0.5 to +7.0

VTERM(3) Terminal Voltage

with Respect to

GND

–0.5 to

VCC +0.5

–0.5 to

VCC +0.5

Operating

Temperature

0 to +70

–55 to +125

°C

TBIAS

Temperature

Under Bias

–55 to +125

–65 to +135

°C

TSTG

Storage

Temperature

–55 to +125

–65 to +150

°C

Power Dissipation

0.5

IOUT

DC Output

Current

–60 to +120

2632 lnk 03

ABSOLUTE MAXIMUM RATINGS

(1)

CAPACITANCE (TA = +25

°C, f = 1.0MHz)

2632 drw 02

DIP/SOIC/QSOP/CERPACK

TOP VIEW

2632 drw 03

L20-2

INDEX

I/O6

I/O4

I/O2

I/O0

DS7

I/O7

I/O5

I/O3

9 10 11 12 13

20 19

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