Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLogic ICsLogic IC - Buffer, driver SOIC 20

CY54FCT244T, CY74FCT244T

8-BIT BUFFERS/LINE DRIVERS

WITH 3-STATE OUTPUTS

SCCS071 – OCTOBER 2001

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Function, Pinout, and Drive Compatible

With FCT and F Logic

Reduced V

(Typically = 3.3 V) Versions

of Equivalent FCT Functions

Edge-Rate Control Circuitry for

Significantly Improved Noise

Characteristics

off

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

CY54FCT244T

– 48-mA Output Sink Current

12-mA Output Source Current

CY74FCT244T

– 64-mA Output Sink Current

32-mA Output Source Current

3-State Outputs

description

The ’FCT244T devices are octal buffers and line drivers designed to be employed as memory address drivers,

clock drivers, and bus-oriented transmitters/receivers. These devices provide speed and drive capabilities

equivalent to their fastest bipolar logic counterparts, while reducing power consumption. The input and output

voltage levels allow direct interface with TTL, NMOS, and CMOS devices without external components.

These devices are fully specified for partial-power-down applications using I

off

. The I

off

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.

GND

3212019

910111213

GND

CY54FCT244T ...D PACKAGE

CY74FCT244T ...P, Q, OR SO PACKAGE

(TOP VIEW)

CY54FCT244T ...L PACKAGE

(TOP VIEW)

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.

Summary of content (24 pages)

PAGE 1
CY54FCT244T, CY74FCT244T 8-BIT BUFFERS/LINE DRIVERS WITH 3-STATE OUTPUTS SCCS071 – OCTOBER 2001 D D D D D D D D OEA DA0 OB0 DA1 OB1 DA2 OB2 DA3 OB3 GND 1 20 2 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 10 11 VCC OEB OA0 DB0 OA1 DB1 OA2 DB2 OA3 DB3 CY54FCT244T . . . L PACKAGE (TOP VIEW) OB0 DA0 OEA VCC OEB D CY54FCT244T . . . D PACKAGE CY74FCT244T . . . P, Q, OR SO PACKAGE (TOP VIEW) Function, Pinout, and Drive Compatible With FCT and F Logic Reduced VOH (Typically = 3.
PAGE 2
CY54FCT244T, CY74FCT244T 8-BIT BUFFERS/LINE DRIVERS WITH 3-STATE OUTPUTS SCCS071 – OCTOBER 2001 ORDERING INFORMATION QSOP – Q 0°C to 70°C TOP-SIDE MARKING 3.6 CY74FCT244DTQCT Tube 3.6 CY74FCT244DTSOC Tape and reel 3.6 CY74FCT244DTSOCT Tube 4.1 CY74FCT244CTSOC Tape and reel 4.1 CY74FCT244CTSOCT QSOP – Q Tape and reel 4.1 CY74FCT244CTQCT FCT244C DIP – P Tube 4.6 CY74FCT244ATPC CY74FCT244ATPC Tube 4.6 CY74FCT244ATSOC Tape and reel 4.6 CY74FCT244ATSOCT Tape and reel 4.
PAGE 3
CY54FCT244T, CY74FCT244T 8-BIT BUFFERS/LINE DRIVERS WITH 3-STATE OUTPUTS SCCS071 – OCTOBER 2001 logic diagram (positive logic) OEA 1 2 18 DA1 4 16 DA2 6 14 8 12 DA0 DA3 OEB DB0 DB1 DB2 DB3 OA0 OA1 OA2 OA3 19 17 3 15 5 13 7 11 9 OB0 OB1 OB2 OB3 absolute maximum rating over operating free-air temperature range (unless otherwise noted)† Supply voltage range to ground potential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.
PAGE 4
CY54FCT244T, CY74FCT244T 8-BIT BUFFERS/LINE DRIVERS WITH 3-STATE OUTPUTS SCCS071 – OCTOBER 2001 recommended operating conditions (see Note 2) CY54FCT244T CY74FCT244DT CY74FCT244T MIN NOM MAX MIN NOM MAX MIN NOM MAX 4.5 5 5.5 4.75 5 5.25 4.75 5 5.25 VCC VIH Supply voltage VIL IOH Low-level input voltage 0.8 0.8 0.
PAGE 5
CY54FCT244T, CY74FCT244T 8-BIT BUFFERS/LINE DRIVERS WITH 3-STATE OUTPUTS SCCS071 – OCTOBER 2001 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK VOH CY54FCT244T TYP† MAX TEST CONDITIONS VCC = 4.5 V, VCC = 4.75 V, IIN = –18 mA IIN = –18 mA VCC = 4.5 V, IOH = –12 mA IOH = –32 mA VCC = 4 4.75 75 V MIN –0.7 –1.2 –0.7 2.4 2.4 Vhys All inputs II VCC = 5.5 V, VCC = 5.25 V, VIN = VCC VIN = VCC 5 IIH VCC = 5.5 V, VCC = 5.
PAGE 6
CY54FCT244T, CY74FCT244T 8-BIT BUFFERS/LINE DRIVERS WITH 3-STATE OUTPUTS SCCS071 – OCTOBER 2001 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) (continued) PARAMETER CY54FCT244T TYP† MAX TEST CONDITIONS MIN One bit switching VIN ≤ 0.2 V or VIN ≥ VCC – 0.2 V at f1 = 10 MHz at 50% duty cycle V = 3.4 V or GND IN IC# VCC = 5.5 V, Outputs open, Eight bits VIN = 0.2 V or OEA = OEB = GND switching VIN ≥ VCC – 0.2 V at f1 = 2.
PAGE 7
CY54FCT244T, CY74FCT244T 8-BIT BUFFERS/LINE DRIVERS WITH 3-STATE OUTPUTS SCCS071 – OCTOBER 2001 switching characteristics over operating free-air temperature range (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) tPLH tPHL D O tPZH tPZL OE O tPHZ tPLZ OE O CY54FCT244T CY54FCT244AT CY54FCT244CT MIN MAX MIN MAX MIN MAX 1.5 7 1.5 5.1 1.5 4.6 1.5 7 1.5 5.1 1.5 4.6 1.5 8.5 1.5 6.5 1.5 6.5 1.5 8.5 1.5 6.5 1.5 6.5 1.5 7.5 1.5 5.9 1.5 5.7 1.5 7.5 1.5 5.9 1.
PAGE 8
CY54FCT244T, CY74FCT244T 8-BIT BUFFERS/LINE DRIVERS WITH 3-STATE OUTPUTS SCCS071 – OCTOBER 2001 PARAMETER MEASUREMENT INFORMATION 7V From Output Under Test From Output Under Test Test Point CL = 50 pF (see Note A) Open TEST GND CL = 50 pF (see Note A) 500 Ω S1 500 Ω S1 Open 7V Open tPLH/tPHL tPLZ/tPZL tPHZ/tPZH 500 Ω LOAD CIRCUIT FOR 3-STATE OUTPUTS LOAD CIRCUIT FOR TOTEM-POLE OUTPUTS 3V 1.5 V Timing Input 0V tw tsu 3V 1.5 V Input 1.5 V th 3V 1.5 V Data Input 1.
PAGE 9
PACKAGE OPTION ADDENDUM www.ti.
PAGE 10
PACKAGE OPTION ADDENDUM www.ti.
PAGE 11
PACKAGE OPTION ADDENDUM www.ti.
PAGE 12
PACKAGE OPTION ADDENDUM www.ti.
PAGE 13
PACKAGE OPTION ADDENDUM www.ti.com (4) 25-Sep-2013 There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Device Marking for that device.
PAGE 14
PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device CY74FCT244ATQCT Package Package Pins Type Drawing SSOP SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant DBQ 20 2500 330.0 16.4 6.5 9.0 2.1 8.0 16.0 Q1 CY74FCT244ATSOCT SOIC DW 20 2000 330.0 24.4 10.8 13.0 2.7 12.0 24.0 Q1 CY74FCT244CTQCT SSOP DBQ 20 2500 330.0 16.4 6.5 9.0 2.1 8.0 16.
PAGE 15
PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) CY74FCT244ATQCT SSOP DBQ 20 2500 367.0 367.0 38.0 CY74FCT244ATSOCT SOIC DW 20 2000 367.0 367.0 45.0 CY74FCT244CTQCT SSOP DBQ 20 2500 367.0 367.0 38.0 CY74FCT244DTQCT SSOP DBQ 20 2500 367.0 367.0 38.0 CY74FCT244DTSOCT SOIC DW 20 2000 367.0 367.0 45.0 CY74FCT244TQCT SSOP DBQ 20 2500 367.0 367.
PAGE 16
PAGE 17
PAGE 18
PAGE 19
PAGE 20
PAGE 21
PAGE 22
PAGE 23
PAGE 24
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.