Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLogic ICsLogic IC - Receiver, transceiver PDIP 20

SN54ALS245A, SN54AS245, SN74ALS245A, SN74AS245

OCTAL BUS TRANSCEIVERS

WITH 3-STATE OUTPUTS

SDAS272A – NOVEMBER 1994 – REVISED JANUARY 2003

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

4.5-V to 5.5-V V

Operation

Max t

of 5.5 ns at 5 V

3-State Outputs Drive Bus Lines Directly

pnp Inputs Reduce dc Loading

DIR

GND

SN54ALS245A ...J OR W PACKAGE

SN54AS245 ...J PACKAGE

SN74ALS245A . . . DB, DW, N, OR NS PACKAGE

SN74AS245 ...DW, N, OR NS PACKAGE

(TOP VIEW)

3212019

910111213

DIR

GND

SN54ALS245A, SN54AS245 . . . FK PACKAGE

(TOP VIEW)

description/ordering information

ORDERING INFORMATION

PACKAGE

†

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

SN74ALS245A-1N SN74ALS245A-1N

PDIP – N Tube

SN74ALS245AN SN74ALS245AN

SN74AS245N SN74AS245N

Tube SN74ALS245ADW

ALS245A

Tape and reel SN74ALS245ADWR

ALS245A

SOIC DW

Tube SN74ALS245A-1DW

ALS245A 1

0°C to 70°C

SOIC

–

Tape and reel SN74ALS245A-1DWR

ALS245A

Tube SN74AS245DW

AS245

Tape and reel SN74AS245DWR

AS245

Tape and reel SN74ALS245ANSR ALS245A

SOP – NS

Tape and reel SN74ALS245A-1NSR ALS245A-1

Tape and reel SN74AS245NSR 74AS245

SSOP – DB Tape and reel SN74ALS245ADBR G245A

CDIP J

Tube

SNJ54ALS245AJ SNJ54ALS245AJ

CDIP

–

Tube

SNJ54AS245J SNJ54AS245J

–55°C to 125°C

CFP – W Tube SNJ54ALS245AW SNJ54ALS245AW

LCCC FK

Tube

SNJ54ALS245AFK SNJ54ALS245AFK

LCCC

–

Tube

SNJ54AS245FK SNJ54AS245FK

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.

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.

Summary of content (21 pages)

PAGE 1
SN54ALS245A, SN54AS245, SN74ALS245A, SN74AS245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SDAS272A – NOVEMBER 1994 – REVISED JANUARY 2003 D D D D 4.5-V to 5.5-V VCC Operation Max tpd of 5.5 ns at 5 V SN54ALS245A, SN54AS245 . . . FK PACKAGE (TOP VIEW) 20 2 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 10 11 VCC OE B1 B2 B3 B4 B5 B6 B7 B8 A3 A4 A5 A6 A7 4 3 2 1 20 19 18 5 17 6 16 7 15 8 14 9 10 11 12 13 B1 B2 B3 B4 B5 A8 GND B8 B7 B6 1 A2 A1 DIR VCC OE SN54ALS245A . . .
PAGE 2
SN54ALS245A, SN54AS245, SN74ALS245A, SN74AS245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SDAS272A – NOVEMBER 1994 – REVISED JANUARY 2003 description/ordering information(continued) These octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements.
PAGE 3
SN54ALS245A, SN54AS245, SN74ALS245A, SN74AS245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SDAS272A – NOVEMBER 1994 – REVISED JANUARY 2003 recommended operating conditions (see Note 2) SN54ALS245A VCC VIH Supply voltage VIL IOH Low-level input voltage IOL Low level output current Low-level High-level input voltage SN74ALS245A MIN NOM MAX MIN NOM MAX 4.5 5 5.5 4.5 5 5.5 2 2 High-level output current UNIT V V 0.7 0.
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SN54ALS245A, SN54AS245, SN74ALS245A, SN74AS245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SDAS272A – NOVEMBER 1994 – REVISED JANUARY 2003 switching characteristics (see Figure 1) PARAMETER FROM (INPUT) VCC = 4.5 V to 5.
PAGE 5
SN54ALS245A, SN54AS245, SN74ALS245A, SN74AS245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SDAS272A – NOVEMBER 1994 – REVISED JANUARY 2003 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK VOH VOL II A or B ports MIN VCC = 4.5 V, VCC = 4.5 V to 5.5 V, II = – 18 mA IOH = – 2 mA VCC = 4.5 V IOH = – 3 mA IOH = – 12 mA VCC = 5 5.5 5V SN74AS245 TYP† MAX MIN –1.2 VCC – 2 2.4 –1.2 VCC – 2 2.4 3.2 3.
PAGE 6
SN54ALS245A, SN54AS245, SN74ALS245A, SN74AS245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SDAS272A – NOVEMBER 1994 – REVISED JANUARY 2003 PARAMETER MEASUREMENT INFORMATION SERIES 54ALS/74ALS AND 54AS/74AS DEVICES 7V RL = R1 = R2 VCC S1 RL R1 Test Point From Output Under Test CL (see Note A) From Output Under Test RL Test Point From Output Under Test CL (see Note A) CL (see Note A) LOAD CIRCUIT FOR BI-STATE TOTEM-POLE OUTPUTS LOAD CIRCUIT FOR OPEN-COLLECTOR OUTPUTS 3.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 25-Sep-2013 (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) 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.
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PACKAGE MATERIALS INFORMATION www.ti.com 17-Aug-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device SN74ALS245A-1DWR Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant SOIC DW 20 2000 330.0 24.4 10.8 13.0 2.7 12.0 24.0 Q1 SN74ALS245A-1NSR SO NS 20 2000 330.0 24.4 8.2 13.0 2.5 12.0 24.0 Q1 SN74ALS245ADBR SSOP DB 20 2000 330.0 16.4 8.2 7.5 2.5 12.0 16.
PAGE 12
PACKAGE MATERIALS INFORMATION www.ti.com 17-Aug-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN74ALS245A-1DWR SOIC DW 20 2000 367.0 367.0 45.0 SN74ALS245A-1NSR SO NS 20 2000 367.0 367.0 45.0 SN74ALS245ADBR SSOP DB 20 2000 367.0 367.0 38.0 SN74ALS245ADWR SOIC DW 20 2000 367.0 367.0 45.0 SN74ALS245ANSR SO NS 20 2000 367.0 367.0 45.0 SN74AS245NSR SO NS 20 2000 367.0 367.0 45.
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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.
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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.