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CY54FCT573T, CY74FCT573T

8-BIT LATCHES

WITH 3-STATE OUTPUTS

SCCS068 – OCTOBER 2001

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Function and Pinout Compatible With FCT

and F Logic

Reduced VOH (Typically = 3.3 V) Versions

of Equivalent FCT Functions

Edge-Rate Control Circuitry for

Signicantly Improved Noise

Characteristics

Ioff Supports Partial-Power-Down Mode

Operation

ESD Protection Exceeds JESD 22

– 2000-V Human-Body Model (A114-A)

– 200-V Machine Model (A115-A)

– 1000-V Charged-Device Model (C101)

Matched Rise and Fall Times

Fully Compatible With TTL Input and

Output Logic Levels

3-State Outputs

CY54FCT573T

– 32-mA Output Sink Current

– 12-mA Output Source Current

CY74FCT573T

– 64-mA Output Sink Current

– 32-mA Output Source Current

description

The ’FCT573T devices consist of eight latches with 3-state outputs for bus-organized applications. When the

latch-enable (LE) input is high, the ip-ops appear transparent to the data. Data that meets the required setup

times are latched when LE transitions from high to low. Data appears on the bus when the output-enable (OE )

input is low. When OE is high, the bus output is in the high-impedance state. In this mode, data can be entered

into the latches. The ’FCT573T devices are identical to the ’FCT373T devices, except for the ow-through

pinout of the ’FCT573T, which simplifies board design.

These devices are fully specied for partial-power-down applications using Ioff. The Ioff circuitry disables the

outputs, preventing damaging current backflow through the device when it is powered down.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

CY54FCT573T . . . D PACKAGE

CY74FCT573T . . . P, Q, OR SO PACKAGE

(TOP VIEW)

GND

VCC

On products compliant to MIL-PRF-38535, all parameters are tested

unless otherwise noted. On all other products, production

processing does not necessarily include testing of all parameters.

CY54FCT573T, CY74FCT573T

8-BIT LATCHES

WITH 3-STATE OUTPUTS

SCCS068 – OCTOBER 2001

2POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

ORDERING INFORMATION

TAPACKAGE†SPEED

(ns)

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

QSOP – Q Tape and reel 4.7 CY74FCT573CTQCT FCT573C

SOIC SO

Tube 4.7 CY74FCT573CTSOC

FCT573C

SOIC

–

Tape and reel 4.7 CY74FCT573CTSOCT

FCT573C

DIP Tube 5.2 CY74FCT573ATPC CY74FCT573ATPC– P

40 C to 85 C

QSOP – Q Tape and reel 5.2 CY74FCT573ATQCT FCT573A

–

40 C°

85 C°

SOIC SO

Tube 5.2 CY74FCT573ATSOC

FCT573A

SOIC

–

Tape and reel 5.2 CY74FCT573ATSOCT

FCT573A

QSOP – Q Tape and reel 8 CY74FCT573TQCT FCT573

SOIC SO

Tube 8 CY74FCT573TSOC

FCT573

SOIC

–

Tape and reel 8 CY74FCT573TSOCT

FCT573

– –55 C CDIP °C to 125° D Tube 8.5 CY54FCT573ATLMB

†Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at

www.ti.com/sc/package.

FUNCTION TABLE

INPUTS OUTPUT

OE LE D O

L H H H

L H L L

L L X Q0

H X X Z

H = High logic level, L = Low logic level,

X = Don’t care, Z = High-impedance state,

Qn = Previous state of flip flops (Q

n 1–)

logic diagram (positive logic)

To Seven Other Channels

DO0

CY54FCT573T, CY74FCT573T

8-BIT LATCHES

WITH 3-STATE OUTPUTS

SCCS068 – OCTOBER 2001

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

absolute maximum rating over operating free-air temperature range (unless otherwise noted) †

Supply voltage range to ground potential –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DC input voltage range –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DC output voltage range –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DC output current (maximum sink current/pin) 120 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Package thermal impedance, θJA (see Note 1): P package 69°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Q package 68°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SO package 58°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Ambient temperature range with power applied, TA 65 C–°C to 135°. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range, Tstg –65 C°C to 150°. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

†Stresses beyond those listed under “absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and”

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions is not implied.”

Exposure to absolute-maximum-rated conditions for extended periods may aect device reliability.

NOTE 1: The package thermal impedance is calculated in accordance with JESD 51-7.

recommended operating conditions (see Note 2)

CY54FCT573T CY74FCT573T

UNIT

MIN NOM MAX MIN NOM MAX

UNIT

VCC Supply voltage 4.5 5 5.5 4.75 5 5.25 V

VIH High-level input voltage 2 2 V

VIL Low-level input voltage 0.8 0.8 V

IOH High-level output current – –12 32 mA

IOL Low-level output current 32 64 mA

TAOperating free-air temperature – –55 125 40 85 C°

NOTE 2: All unused inputs of the device must be held at V

CC or GND to ensure proper device operation.

Product specificaties

Merk:	Texas Instruments
Categorie:	Niet gecategoriseerd
Model:	CY74FCT573ATSOC
Breedte verpakking:	367 mm
Diepte verpakking:	367 mm
Hoogte verpakking:	45 mm
Soort:	Logic IC
Type verpakking:	SOIC
Aantal per verpakking:	2000 stuk(s)
Temperatuur bij opslag:	-65 - 150 °C
Bedrijfstemperatuur (T-T):	-40 - 85 °C
Aantal pinnen:	20