IDT74FCT646ATQ IDT, Integrated Device Technology Inc, IDT74FCT646ATQ Datasheet

IDT74FCT646ATQ

Manufacturer Part Number

IDT74FCT646ATQ

Description

Manufacturer

IDT, Integrated Device Technology Inc

Datasheet

1.IDT74FCT646ATQ.pdf (8 pages)

Specifications of IDT74FCT646ATQ

Logic Family

FCT

Operating Supply Voltage (typ)

Propagation Delay Time

9.8ns

Number Of Elements

Number Of Channels

Input Logic Level

TTL

Output Logic Level

TTL

Output Type

3-State

Package Type

QSOP

Polarity

Non-Inverting

Logical Function

Bus Transceiver/Register

Operating Supply Voltage (min)

4.75V

Operating Supply Voltage (max)

5.25V

Quiescent Current (typ)

10nA

Technology

CMOS

Operating Temp Range

-40C to 85C

Operating Temperature Classification

Industrial

Mounting

Surface Mount

Pin Count

Lead Free Status / Rohs Status

Not Compliant

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Quantity

Price

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BOSTOCK HK LIMITED

Part Number:

IDT74FCT646ATQ

Manufacturer:

IDT

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FEATURES:

• Std., A, and C grades

• Low input and output leakage ≤ ≤ ≤ ≤ ≤ 1µA (max.)

• CMOS power levels

• True TTL input and output compatibility:

• High Drive outputs (-15mA I

• Meets or exceeds JEDEC standard 18 specifications

• Military product compliant to MIL-STD-883, Class B and DESC

• Power off disable outputs permit "live insertion"

• Available in the following packages:

The IDT logo is a registered trademark of Integrated Device Technology, Inc.

MILITARY AND INDUSTRIAL TEMPERATURE RANGES

FUNCTIONAL BLOCK DIAGRAM

IDT54/74FCT646T/AT/CT

FAST CMOS OCTAL TRANSCEIVER/REGISTER (3-STATE)

– V

listed (dual marked)

– Industrial: SOIC, SSOP, QSOP, TSSOP

– Military: CERDIP, LCC

= 0.3V (typ.)

= 3.3V (typ.)

CPB A

CPA B

SBA

SAB

DIR

ONE OF EIGHT CHANNELS

, 64mA I

A REG

)

FAST CMOS OCTAL

TRANSCEIVER/

TO SEVE N OTHER CHANN ELS

DESCRIPTION:

and control circuitry arranged for multiplexed transmission of data directly

from the data bus or from the internal storage registers. The FCT646T

utilizes the enable control (G) and direction (DIR) pins to control the

transceiver functions.

data transfer. The circuitry used for select control will eliminate the typical

decoding glitch that occurs in a multiplexer during the transition between

stored and real-time data. A low input level selects real-time data and a high

selects stored data.

flops by low-to-high transitions at the appropriate clock pins (CPAB or

CPBA), regardless of the select or enable control pins.

The FCT646T consists of a bus transceiver with 3-state D-type flip-flops

SAB and SBA control pins are provided to select either real- time or stored

Data on the A or B data bus, or both, can be stored in the internal D flip-

MILITARY AND INDUSTRIAL TEMPERATURE RANGES

B REG

IDT54/74FCT646T/AT/CT

JUNE 2002

DSC-5505/3

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IDT74FCT646ATQ Summary of contents

Page 1

... TRANSCEIVER/ REGISTER (3-STATE) DESCRIPTION: The FCT646T consists of a bus transceiver with 3-state D-type flip-flops and control circuitry arranged for multiplexed transmission of data directly from the data bus or from the internal storage registers. The FCT646T utilizes the enable control (G) and direction (DIR) pins to control the transceiver functions ...

Page 2

IDT54/74FCT646T/AT/CT FAST CMOS OCTAL TRANSCEIVER/REGISTER (3-STATE) PIN CONFIGURATION 1 24 CPAB 23 SAB 2 22 DIR ...

Page 3

IDT54/74FCT646T/AT/CT FAST CMOS OCTAL TRANSCEIVER/REGISTER (3-STATE) FUNCTION TABLE (1) Inputs G DIR CPAB CPBA ↑ ↑ ...

Page 4

IDT54/74FCT646T/AT/CT FAST CMOS OCTAL TRANSCEIVER/REGISTER (3-STATE) BUS A G DIR CPAB CPBA Real-Time Transfer Bus BUS A G DIR CPAB CPBA ↑ ↑ ↑ ↑ ...

Page 5

IDT54/74FCT646T/AT/CT FAST CMOS OCTAL TRANSCEIVER/REGISTER (3-STATE) POWER SUPPLY CHARACTERISTICS Symbol Parameter ∆I Quiescent Power Supply Current CC TTL Inputs HIGH I Dynamic Power Supply CCD (4) Current I Total Power Supply Current (6) C NOTES: 1. For conditions shown as ...

Page 6

IDT54/74FCT646T/AT/CT FAST CMOS OCTAL TRANSCEIVER/REGISTER (3-STATE) SWITCHING CHARACTERISTICS OVER OPERATING RANGE Symbol Parameter t Propagation Delay, PLH t Bus to Bus PHL t Output Enable Time, PZH t G, DIR to Bus PZL t Output Disable Time, PHZ t G, ...

Page 7

IDT54/74FCT646T/AT/CT FAST CMOS OCTAL TRANSCEIVER/REGISTER (3-STATE) TEST CIRCUITS AND WAVEFORMS OUT V IN Pulse D.U.T Generator . R T Test Circuits for All Outputs DATA INPUT t SU TIMING INPUT ASYNCHRONOUS CONTROL PRESET CLEAR ETC. SYNCHRONOUS CONTROL ...

Page 8

IDT54/74FCT646T/AT/CT FAST CMOS OCTAL TRANSCEIVER/REGISTER (3-STATE) ORDERING INFORMATION XXXX IDT XX FCT Device Type Temp. Range CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054 XX X Package Process Blank 646T 646AT 646CT ...

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