Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLogic ICsLogic IC - Buffer, driver SOIC 20

SN54BCT240, SN74BCT240

OCTAL BUFFERS/DRIVERS

WITH 3-STATE OUTPUTS

SCBS004F – OCTOBER 1987 – REVISED MARCH 2003

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Operating Voltage Range of 4.5 V to 5.5 V

State-of-the-Art BiCMOS Design

Significantly Reduces I

CCZ

3-State Outputs Drive Bus Lines or Buffer

Memory Address Registers

ESD Protection Exceeds JESD 22

– 2000-V Human-Body Model (A114-A)

1OE

1A1

2Y4

1A2

2Y3

1A3

2Y2

1A4

2Y1

GND

2OE

1Y1

2A4

1Y2

2A3

1Y3

2A2

1Y4

2A1

3212019

910111213

1Y1

2A4

1Y2

2A3

1Y3

1A2

2Y3

1A3

2Y2

1A4

SN54BCT240 ...FK PACKAGE

(TOP VIEW)

2Y4

1A1

1OE

1Y4

2A2 2OE

2Y1

GND

2A1

SN54BCT240 ...J OR W PACKAGE

SN74BCT240 . . . DB, DW, N, OR NS PACKAGE

(TOP VIEW)

description/ordering information

These octal buffers and line drivers are designed specifically to improve both the performance and density of

3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. Together with the

’BCT241 and ’BCT244 devices, these devices provide the choice of selected combinations of inverting and

noninverting outputs, symmetrical OE

(active-low output-enable) inputs, and complementary OE and OE

inputs. These devices feature high fan-out and improved fan-in.

To ensure the high-impedance state during power up or power down, OE

should be tied to V

through a pullup

resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

ORDERING INFORMATION

PACKAGE

†

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

PDIP – N Tube SN74BCT240N SN74BCT240N

SOIC DW

Tube SN74BCT240DW

BCT240

0°C to 70°C

SOIC

–

Tape and reel SN74BCT240DWR

BCT240

SOP – NS Tape and reel SN74BCT240NSR BCT240

SSOP – DB Tape and reel SN74BCT240DBR BT240

CDIP – J Tube SNJ54BCT240J SNJ54BCT240J

–55°C to 125°C

CFP – W Tube SNJ54BCT240W SNJ54BCT240W

LCCC – FK Tube SNJ54BCT240FK SNJ54BCT240FK

†

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

available at www.ti.com/sc/package.

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.

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.

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 (19 pages)

PAGE 1
SN54BCT240, SN74BCT240 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCBS004F – OCTOBER 1987 – REVISED MARCH 2003 D Operating Voltage Range of 4.5 V to 5.5 V State-of-the-Art BiCMOS Design Significantly Reduces ICCZ D 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers ESD Protection Exceeds JESD 22 – 2000-V Human-Body Model (A114-A) SN54BCT240 . . . J OR W PACKAGE SN74BCT240 . . .
PAGE 2
SN54BCT240, SN74BCT240 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCBS004F – OCTOBER 1987 – REVISED MARCH 2003 FUNCTION TABLE (each buffer) INPUTS OUTPUT Y OE A L H L L L H H X Z logic diagram (positive logic) 1 1OE 2 18 4 16 6 14 8 12 1A1 1A2 1A3 1A4 1Y1 1Y2 1Y3 1Y4 19 2OE 11 9 13 7 15 5 17 3 2A1 2A2 2A3 2A4 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 2Y1 2Y2 2Y3 2Y4
PAGE 3
SN54BCT240, SN74BCT240 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCBS004F – OCTOBER 1987 – REVISED MARCH 2003 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.
PAGE 4
SN54BCT240, SN74BCT240 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCBS004F – OCTOBER 1987 – REVISED MARCH 2003 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK VOH SN54BCT240 TYP† MAX TEST CONDITIONS VCC = 4.5 V, VCC = 4.5 V MIN II = –18 mA IOH = –3 mA SN74BCT240 TYP† MAX MIN –1.2 IOH = –12 mA IOH = –15 mA 2.4 3.3 2 3.2 –1.2 2.4 V 3.3 V 2 0.38 UNIT 3.1 VOL VCC = 4 4.5 5V IOL = 48 mA IOL = 64 mA 0.
PAGE 5
SN54BCT240, SN74BCT240 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCBS004F – OCTOBER 1987 – REVISED MARCH 2003 PARAMETER MEASUREMENT INFORMATION 7 V (tPZL, tPLZ, O.C.) S1 Open (all others) From Output Under Test Test Point CL (see Note A) R1 From Output Under Test R1 Test Point CL (see Note A) R2 LOAD CIRCUIT FOR TOTEM-POLE OUTPUTS RL = R1 = R2 LOAD CIRCUIT FOR 3-STATE AND OPEN-COLLECTOR OUTPUTS High-Level Pulse (see Note B) 3V Timing Input (see Note B) 3V 1.5 V 1.5 V 0V 1.
PAGE 6
PACKAGE OPTION ADDENDUM www.ti.
PAGE 7
PACKAGE OPTION ADDENDUM www.ti.com Orderable Device 25-Sep-2013 Status (1) SNJ54BCT240W ACTIVE Package Type Package Pins Package Drawing Qty CFP W 20 1 Eco Plan Lead/Ball Finish (2) TBD MSL Peak Temp Op Temp (°C) Device Marking (3) Call TI N / A for Pkg Type (4/5) -55 to 125 5962-9074201MS A SNJ54BCT240W (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs.
PAGE 8
PACKAGE OPTION ADDENDUM www.ti.
PAGE 9
PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device SN74BCT240NSR Package Package Pins Type Drawing SO NS 20 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 2000 330.0 24.4 Pack Materials-Page 1 8.2 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 13.0 2.5 12.0 24.
PAGE 10
PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN74BCT240NSR SO NS 20 2000 367.0 367.0 45.
PAGE 11
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PAGE 18
MECHANICAL DATA MSSO002E – JANUARY 1995 – REVISED DECEMBER 2001 DB (R-PDSO-G**) PLASTIC SMALL-OUTLINE 28 PINS SHOWN 0,38 0,22 0,65 28 0,15 M 15 0,25 0,09 8,20 7,40 5,60 5,00 Gage Plane 1 14 0,25 A 0°–ā8° 0,95 0,55 Seating Plane 2,00 MAX 0,10 0,05 MIN PINS ** 14 16 20 24 28 30 38 A MAX 6,50 6,50 7,50 8,50 10,50 10,50 12,90 A MIN 5,90 5,90 6,90 7,90 9,90 9,90 12,30 DIM 4040065 /E 12/01 NOTES: A. B. C. D. All linear dimensions are in millimeters.
PAGE 19
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.