Datasheet

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www.ti.com

FEATURES

DB, DGV, OR PW PACKAGE

(TOP VIEW)

CCA

DIR

GND

CCB

GND

RHL PACKAGE

(TOP VIEW)

1 24

12 13

CCB

DIR

GND

CCB

CCA

DESCRIPTION/ORDERING INFORMATION

SN74LVCH8T245

8-BIT DUAL-SUPPLY BUS TRANSCEIVER

WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

SCES637A – AUGUST 2005 – REVISED FEBRUARY 2007

• Control Inputs V

Levels Are Referenced • Bus Hold on Data Inputs Eliminates the Need

to V

CCA

Voltage for External Pullup/Pulldown Resistors

• V

Isolation Feature – If Either V

Input Is at • Latch-Up Performance Exceeds 100 mA Per

GND, All Are in the High-Impedance State JESD 78, Class II

• Fully Configurable Dual-Rail Design Allows • ESD Protection Exceeds JESD 22

Each Port to Operate Over the Full 1.65-V to

– 4000-V Human-Body Model (A114-A)

5.5-V Power-Supply Range

– 200-V Machine Model (A115-A)

BKR

– 1000-V Charged-Device Model (C101)

This 8-bit noninverting bus transceiver uses two separate configurable power-supply rails. The

SN74LVCH8T245 is optimized to operate with V

CCA

and V

CCB

set at 1.65 V to 5.5 V. The A port is designed to

track V

CCA

. V

CCA

accepts any supply voltage from 1.65 V to 5.5 V. The B port is designed to track V

CCB

. V

CCB

accepts any supply voltage from 1.65 V to 5.5 V. This allows for universal low-voltage bidirectional translation

between any of the 1.8-V, 2.5-V, 3.3-V, and 5.5-V voltage nodes.

ORDERING INFORMATION

PACKAGE

(1)

ORDERABLE PART NUMBER TOP-SIDE MARKING

QFN – RHL Reel of 1000 SN74LVCH8T245RHLR NJ245

SSOP – DB Reel of 2000 SN74LVCH8T245DBR NJ245

–40 ° C to 85 ° C Tube of 60 SN74LVCH8T245PW

TSSOP – PW NJ245

Reel of 2000 SN74LVCH8T245PWR

TVSOP – DGV Reel of 2000 SN74LVCH8T245DGVR NJ245

(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 (22 pages)

PAGE 1
SN74LVCH8T245 8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.
PAGE 2
SN74LVCH8T245 8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES637A – AUGUST 2005 – REVISED FEBRUARY 2007 DESCRIPTION/ORDERING INFORMATION (CONTINUED) The SN74LVCH8T245 is designed for asynchronous communication between two data buses. The logic levels of the direction-control (DIR) input and the output-enable (OE) input activate either the B-port outputs or the A-port outputs or place both output ports into the high-impedance mode.
PAGE 3
SN74LVCH8T245 8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES637A – AUGUST 2005 – REVISED FEBRUARY 2007 Absolute Maximum Ratings (1) over operating free-air temperature range (unless otherwise noted) VCCA VCCB Supply voltage range VI Input voltage range (2) MIN MAX –0.5 6.5 I/O ports (A port) –0.5 6.5 I/O ports (B port) –0.5 6.5 Control inputs –0.5 6.5 A port –0.5 6.5 B port –0.5 6.5 A port –0.5 VCCA + 0.5 B port –0.
PAGE 4
SN74LVCH8T245 8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES637A – AUGUST 2005 – REVISED FEBRUARY 2007 Recommended Operating Conditions (1) (2) (3) VCCI VCCA VCCB VCCO Supply voltage High-level input voltage Data inputs (4) MAX 1.65 5.5 1.65 5.5 2.3 V to 2.7 V 1.7 3 V to 3.6 V VCCI × 0.7 VCCI × 0.35 1.65 V to 1.95 V VIL Data inputs (4) 2.3 V to 2.7 V 0.7 3 V to 3.6 V 0.8 VCCA × 0.65 1.65 V to 1.
PAGE 5
SN74LVCH8T245 8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES637A – AUGUST 2005 – REVISED FEBRUARY 2007 Electrical Characteristics (1) (2) over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VOH VOL Control inputs II IBHL (3) IBHH (4) TEST CONDITIONS Ioff A or B port IOZ B port 1.65 V 1.2 IOH = –8 mA, VI = VIH 2.3 V 2.3 V 1.9 IOH = –24 mA, VI = VIH 3V 3V 2.
PAGE 6
SN74LVCH8T245 8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES637A – AUGUST 2005 – REVISED FEBRUARY 2007 Electrical Characteristics (continued) over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VCCA VCCB 3 V to 5.5 V 3 V to 5.5 V ∆ICCA DIR DIR at VCCA – 0.6 V, B port = open, A port at VCCA or GND Ci Control inputs VI = VCCA or GND 3.3 V 3.
PAGE 7
SN74LVCH8T245 8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES637A – AUGUST 2005 – REVISED FEBRUARY 2007 Switching Characteristics over recommended operating free-air temperature range, VCCA = 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1) PARAMETER tPLH tPHL tPLH tPHL tPHZ tPLZ tPHZ tPLZ tPZH tPZL tPZH tPZL FROM (INPUT) TO (OUTPUT) A VCCB = 1.8 V ± 0.15 V VCCB = 2.5 V ± 0.2 V VCCB = 3.3 V ± 0.3 V VCCB = 5 V ± 0.
PAGE 8
SN74LVCH8T245 8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES637A – AUGUST 2005 – REVISED FEBRUARY 2007 PARAMETER MEASUREMENT INFORMATION 2 × VCCO S1 RL From Output Under Test Open GND CL (see Note A) TEST S1 tpd tPLZ/tPZL tPHZ/tPZH Open 2 × VCCO GND RL tw LOAD CIRCUIT VCCI VCCI/2 Input VCCO CL RL VTP 1.8 V ± 0.15 V 2.5 V ± 0.2 V 3.3 V ± 0.3 V 5 V ± 0.5 V 15 pF 15 pF 15 pF 15 pF 2 kΩ 2 kΩ 2 kΩ 2 kΩ 0.15 V 0.15 V 0.3 V 0.
PAGE 9
PACKAGE OPTION ADDENDUM www.ti.
PAGE 10
PACKAGE OPTION ADDENDUM www.ti.com 27-Jul-2013 (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production.
PAGE 11
PACKAGE MATERIALS INFORMATION www.ti.com 27-Jul-2013 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 8.2 8.8 2.5 12.0 16.0 Q1 SN74LVCH8T245DBR SSOP DB 24 2000 330.0 16.4 SN74LVCH8T245DGVR TVSOP DGV 24 2000 330.0 12.4 6.9 5.6 1.6 8.0 12.0 Q1 SN74LVCH8T245PWR TSSOP PW 24 2000 330.0 16.4 6.95 8.3 1.6 8.0 16.
PAGE 12
PACKAGE MATERIALS INFORMATION www.ti.com 27-Jul-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN74LVCH8T245DBR SSOP DB 24 2000 367.0 367.0 38.0 SN74LVCH8T245DGVR TVSOP DGV 24 2000 367.0 367.0 35.0 SN74LVCH8T245PWR TSSOP PW 24 2000 367.0 367.0 38.0 SN74LVCH8T245RHLR VQFN RHL 24 1000 210.0 185.0 35.
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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.
PAGE 22
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.