IDT542244TPB datasheet, PDF - EEWORLD Datasheet

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IDT542244TPB: DescriptionFAST CMOS OCTAL BUFFER/LINE DRIVERS; File Size122KB，9 Pages; ManufacturerIDT (Integrated Device Technology, Inc.); Websitehttp://www.idt.com/

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IDT542244TPB Overview

FAST CMOS OCTAL BUFFER/LINE DRIVERS

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IDT54/74FCT240/244T/AT/CT/DT - 2240/2244T/AT/CT, IDT54/74FCT540/541/2541T/AT/CT

FAST CMOS OCTAL BUFFER/LINE DRIVER

MILITARY AND COMMERCIAL TEMPERATURE RANGES

IDT54/74FCT240T/AT/CT/DT - 2240T/AT/CT

FAST CMOS OCTAL

BUFFER/LINE

DRIVERS

IDT54/74FCT244T/AT/CT/DT - 2244T/AT/CT

IDT54/74FCT540T/AT/CT

IDT54/74FCT541/2541T/AT/CT

Integrated Device Technology, Inc.

FEATURES:

• Common features:

– Low input and output leakage

≤1µA

(max.)

– CMOS power levels

– True TTL input and output compatibility

– V

= 3.3V (typ.)

– V

= 0.3V (typ.)

– Meets or exceeds JEDEC standard 18 specifications

– Product available in Radiation Tolerant and Radiation

Enhanced versions

– Military product compliant to MIL-STD-883, Class B

and DESC listed (dual marked)

– Available in DIP, SOIC, SSOP, QSOP, CERPACK

and LCC packages

• Features for FCT240T/FCT244T/FCT540T/FCT541T:

– Std., A, C and D speed grades

– High drive outputs (-15mA I

, 64mA I

)

• Features for FCT2240T/FCT2244T/FCT2541T:

– Std., A and C speed grades

– Resistor outputs (-15mA I

, 12mA I

Com.)

(-12mA I

, 12mA I

Mil.)

– Reduced system switching noise

DESCRIPTION:

The IDT octal buffer/line drivers are built using an advanced

dual metal CMOS technology. The FCT240T/FCT2240T and

FCT244T/FCT2244T are designed to be employed as memory

and address drivers, clock drivers and bus-oriented transmit-

ter/receivers which provide improved board density.

The FCT540T and FCT541T/FCT2541T are similar in

function to the FCT240T/FCT2240T and FCT244T/FCT2244T,

respectively, except that the inputs and outputs are on oppo-

site sides of the package. This pinout arrangement makes

these devices especially useful as output ports for micropro-

cessors and as backplane drivers, allowing ease of layout and

greater board density.

The FCT2240T, FCT2244T and FCT2541T have balanced

output drive with current limiting resistors. This offers low

ground bounce, minimal undershoot and controlled output fall

times-reducing the need for external series terminating resis-

tors. FCT2xxxT parts are plug-in replacements for FCTxxxT

parts.

FUNCTIONAL BLOCK DIAGRAMS

FCT240/2240T

FCT244/2244T

FCT540/541/2541T

*Logic diagram shown for 'FCT540.

'FCT541/2541T is the non-inverting option.

2565 drw 01

2565 drw 02

2565 drw 03

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

MILITARY AND COMMERCIAL TEMPERATURE RANGES

Integrated Device Technology, Inc.

DECEMBER 1995

DSC-2565/6

6.8

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