Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLogic ICsLogic IC - Receiver, transceiver SOIC 20

www.ti.com

FEATURES

DGV, DW, NS, OR PW PACKAGE

(TOP VIEW)

DIR

GND

RGY PACKAGE

(TOP VIEW)

1 20

10 11

DIR

GND

DESCRIPTION/ORDERING INFORMATION

SN74ALVC245

OCTAL BUS TRANSCEIVER

WITH 3-STATE OUTPUTS

SCES271D – APRIL 1999 – REVISED JULY 2004

• ±24-mA Output Drive at 3.3 V

• Operates from 1.65 V to 3.6 V • Latch-Up Performance Exceeds 250 mA Per

JESD 17

• Max t

of 3.4 ns at 3.3 V

This octal bus transceiver is designed for 1.65-V to 3.6-V V

operation.

The SN74ALVC245 is designed for asynchronous communication between data buses. The device transmits

data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the

direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so the buses are

effectively isolated.

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

(1)

ORDERABLE PART NUMBER TOP-SIDE MARKING

QFN - RGY Tape and reel SN74ALVC245RGYR VA245

Tube SN74ALVC245DW

SOIC - DW ALVC245

Tape and reel SN74ALVC245DWR

-40°C to 85°C SOP - NS Tape and reel SN74ALVC245NSR ALVC245

Tube SN74ALVC245PW

TSSOP - PW VA245

Tape and reel SN74ALVC245PWR

TVSOP - DGV Tape and reel SN74ALVC245DGVR VA245

(1) 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 the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (18 pages)

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SN74ALVC245 OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS www.ti.com SCES271D – APRIL 1999 – REVISED JULY 2004 • • DGV, DW, NS, OR PW PACKAGE (TOP VIEW) 1 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 VCC DIR A1 A2 A3 A4 A5 A6 A7 A8 GND RGY PACKAGE (TOP VIEW) 1 20 3 4 19 OE 18 B1 17 B2 5 6 16 B3 15 B4 7 8 14 B5 13 B6 2 A1 A2 A3 A4 A5 A6 A7 A8 12 B7 9 10 11 B8 Operates from 1.65 V to 3.6 V Max tpd of 3.4 ns at 3.
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SN74ALVC245 OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS www.ti.com SCES271D – APRIL 1999 – REVISED JULY 2004 FUNCTION TABLE INPUTS OPERATION OE DIR L L B data to A bus L H A data to B bus H X Isolation LOGIC DIAGRAM (POSITIVE LOGIC) DIR 1 19 A1 OE 2 18 B1 To Seven Other Channels ABSOLUTE MAXIMUM RATINGS (1) over operating free-air temperature range (unless otherwise noted) VCC Supply voltage range MIN MAX -0.5 4.6 Except I/O ports (2) -0.5 4.6 I/O ports (2) (3) -0.
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SN74ALVC245 OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS www.ti.com SCES271D – APRIL 1999 – REVISED JULY 2004 RECOMMENDED OPERATING CONDITIONS (1) VCC Supply voltage VCC = 1.65 V to 1.95 V VIH High-level input voltage MIN MAX 1.65 3.6 Low-level input voltage VI Input voltage VO Output voltage IOH High-level output current IOL Low-level output current ∆t/∆v Input transition rise or fall rate TA Operating free-air temperature (1) V 0.65 × VCC VCC = 2.3 V to 2.7 V 1.7 VCC = 2.
PAGE 4
SN74ALVC245 OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS www.ti.com SCES271D – APRIL 1999 – REVISED JULY 2004 ELECTRICAL CHARACTERISTICS over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VCC IOH = -100 µA 1.65 V to 3.6 V 1.65 V IOH = -6 mA 2.3 V 2 2.3 V 1.7 2.7 V 2.2 3V 2.4 IOH = -24 mA 3V 2 IOL = 100 µA IOH = -12 mA MAX V 1.65 V to 3.6 V 0.2 1.65 V 0.45 IOL = 6 mA 2.3 V 0.4 2.3 V 0.7 IOL = 24 mA UNIT 1.
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SN74ALVC245 OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS www.ti.com SCES271D – APRIL 1999 – REVISED JULY 2004 PARAMETER MEASUREMENT INFORMATION VLOAD S1 RL From Output Under Test Open GND CL (see Note A) RL TEST S1 tpd tPLZ/tPZL tPHZ/tPZH Open VLOAD GND LOAD CIRCUIT INPUT VCC 1.8 V ± 0.15 V 2.5 V ± 0.2 V 2.7 V 3.3 V ± 0.3 V VI tr/tf VCC VCC 2.7 V 2.7 V ≤2 ns ≤2 ns ≤2.5 ns ≤2.5 ns VM VLOAD CL RL V∆ VCC/2 VCC/2 1.5 V 1.
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PACKAGE OPTION ADDENDUM www.ti.
PAGE 7
PACKAGE OPTION ADDENDUM www.ti.com 21-Dec-2009 TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
PAGE 8
PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device 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 SN74ALVC245DGVR TVSOP DGV 20 2000 330.0 12.4 6.9 5.6 1.6 8.0 12.0 Q1 SN74ALVC245DWR SOIC DW 20 2000 330.0 24.4 10.8 13.0 2.7 12.0 24.0 Q1 SN74ALVC245NSR SO NS 20 2000 330.0 24.4 8.2 13.0 2.5 12.0 24.
PAGE 9
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) SN74ALVC245DGVR TVSOP DGV 20 2000 367.0 367.0 35.0 SN74ALVC245DWR SOIC DW 20 2000 367.0 367.0 45.0 SN74ALVC245NSR SO NS 20 2000 367.0 367.0 45.0 SN74ALVC245PWR TSSOP PW 20 2000 367.0 367.0 38.0 SN74ALVC245RGYR VQFN RGY 20 3000 367.0 367.0 35.
PAGE 10
MECHANICAL DATA MPDS006C – FEBRUARY 1996 – REVISED AUGUST 2000 DGV (R-PDSO-G**) PLASTIC SMALL-OUTLINE 24 PINS SHOWN 0,40 0,23 0,13 24 13 0,07 M 0,16 NOM 4,50 4,30 6,60 6,20 Gage Plane 0,25 0°– 8° 1 0,75 0,50 12 A Seating Plane 0,15 0,05 1,20 MAX PINS ** 0,08 14 16 20 24 38 48 56 A MAX 3,70 3,70 5,10 5,10 7,90 9,80 11,40 A MIN 3,50 3,50 4,90 4,90 7,70 9,60 11,20 DIM 4073251/E 08/00 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 JESD46C and to discontinue any product or service per JESD48B. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.