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FEATURES

DESCRIPTION/ORDERING INFORMATION

SN74AVC24T245

24-BIT DUAL-SUPPLY BUS TRANSCEIVER

WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

SCES552C – FEBRUARY 2004 – REVISED AUGUST 2005

• Control Inputs V

Levels Are Referenced • I

off

Supports Partial-Power-Down Mode

to V

CCA

Voltage Operation

• V

Isolation Feature – If Either V

Input Is at • I/Os Are 4.6-V Tolerant

GND, All Outputs Are in the High-Impedance

• Latch-Up Performance Exceeds 100 mA Per

State

JESD 78, Class II

• Overvoltage-Tolerant Inputs/Outputs Allow

• ESD Protection Exceeds JESD 22

Mixed-Voltage-Mode Data Communications

– 8000-V Human-Body Model (A114-A)

• Fully Configurable Dual-Rail Design Allows

– 200-V Machine Model (A115-A)

Each Port to Operate Over Full 1.2-V to 3.6-V

– 1000-V Charged-Device Model (C101)

Power-Supply Range

This 24-bit noninverting bus transceiver uses two separate configurable power-supply rails. The

SN74AVC24T245 is optimized to operate with V

CCA

CCB

set at 1.4 V to 3.6 V. It is operational with V

CCA

CCB

low as 1.2 V. The A port is designed to track V

CCA

. V

CCA

accepts any supply voltage from 1.2 V to 3.6 V. The

B port is designed to track V

CCB

. V

CCB

accepts any supply voltage from 1.2 V to 3.6 V. This allows for universal

low-voltage bidirectional translation between any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes.

The SN74AVC24T245 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 outputs so the buses are

effectively isolated.

The SN74AVC24T245 is designed so that the control pins (1DIR, 2DIR, 3DIR, 4DIR, 5DIR, 6DIR, 1 OE, 2 OE,

3 OE, 4 OE, 5 OE, and 6 OE) are supplied by V

CCA

This device is 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.

The V

isolation feature ensures that if either V

input is at GND, then both ports are in the high-impedance

state.

To ensure the high-impedance state during power up or power down, OE should be tied to V

CCA

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

LFBGA – GRG Tape and reel SN74AVC24T245GRGR

–40 ° C to 85 ° C WH245

LFBGA – ZRG (Pb-free) Tape and reel SN74AVC24T245ZRGR

(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 (14 pages)

PAGE 1
SN74AVC24T245 24-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES552C – FEBRUARY 2004 – REVISED AUGUST 2005 FEATURES • • • • Control Inputs VIH/VIL Levels Are Referenced to VCCA Voltage VCC Isolation Feature – If Either VCC Input Is at GND, All Outputs Are in the High-Impedance State Overvoltage-Tolerant Inputs/Outputs Allow Mixed-Voltage-Mode Data Communications Fully Configurable Dual-Rail Design Allows Each Port to Operate Over Full 1.2-V to 3.
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SN74AVC24T245 24-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.
PAGE 3
www.ti.
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SN74AVC24T245 24-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES552C – FEBRUARY 2004 – REVISED AUGUST 2005 Absolute Maximum Ratings (1) over operating free-air temperature range (unless otherwise noted) VCCA VCCB Supply voltage range VI Input voltge range (2) MIN MAX –0.5 4.6 I/O ports (A port) –0.5 4.6 I/O ports (B port) –0.5 4.6 Control inputs –0.5 4.6 A port –0.5 4.6 B port –0.5 4.6 A port –0.5 VCCA + 0.5 B port –0.
PAGE 5
www.ti.com SN74AVC24T245 24-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS SCES552C – FEBRUARY 2004 – REVISED AUGUST 2005 Recommended Operating Conditions (1) (2) (3) VCCI VCCO MIN MAX UNIT VCCA Supply voltage 1.2 3.6 V VCCB Supply voltage 1.2 3.
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SN74AVC24T245 24-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES552C – FEBRUARY 2004 – REVISED AUGUST 2005 Electrical Characteristics over recommended operating free-air temperature range (unless otherwise noted) (1) (2) PARAMETER TEST CONDITIONS 1.2 V to 3.6 V 1.2 V to 3.6 V IOH = –3 mA 1.2 V 1.2 V IOH = –6 mA 1.4 V 1.4 V 1.05 1.65 V 1.65 V 1.2 IOH = –9 mA 2.3 V 2.3 V 1.75 IOH = –12 m 3V 3V 2.3 IOL = 100 µA 1.2 V to 3.
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SN74AVC24T245 24-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES552C – FEBRUARY 2004 – REVISED AUGUST 2005 Switching Characteristics over recommended operating free-air temperature range, VCCA = 1.2 V (see Figure 1) PARAMETER tPLH tPHL tPLH tPHL tPZH tPZL tPZH tPZL tPHZ tPLZ tPHZ tPLZ FROM (INPUT) TO (OUTPUT) A B B A OE A OE B OE A OE B VCCB = 1.2 V VCCB = 1.5 V VCCB = 1.8 V VCCB = 2.5 V VCCB = 3.3 V TYP TYP TYP TYP TYP 4.
PAGE 8
SN74AVC24T245 24-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES552C – FEBRUARY 2004 – REVISED AUGUST 2005 Switching Characteristics over recommended operating free-air temperature range, VCCA = 1.8 V ± 0.15 V (see Figure 1) PARAMETER tPLH tPHL tPLH tPHL tPZH tPZL tPZH tPZL tPHZ tPLZ tPHZ tPLZ FROM (INPUT) TO (OUTPUT) A B B A OE A OE B OE A OE B VCCB = 1.2 V VCCB = 1.5 V ± 0.1 V VCCB = 1.8 V ± 0.15 V VCCB = 2.5 V ± 0.
PAGE 9
SN74AVC24T245 24-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES552C – FEBRUARY 2004 – REVISED AUGUST 2005 Switching Charactertistics over recommended operating free-air temperature range, VCCA = 3.3 V ± 0.3 V (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) A B B A OE A OE B OE A OE B tPLH tPHL tPLH tPHL tPZH tPZL tPZH tPZL tPHZ tPLZ tPHZ tPLZ VCCB = 1.2 V VCCB = 1.5 V ± 0.1 V VCCB = 1.8 V ± 0.15 V VCCB = 2.5 V ± 0.
PAGE 10
SN74AVC24T245 24-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS www.ti.com SCES552C – FEBRUARY 2004 – REVISED AUGUST 2005 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 1.5 V ± 0.1 V 1.8 V ± 0.15 V 2.5 V ± 0.2 V 3.3 V ± 0.3 V 15 pF 15 pF 15 pF 15 pF 2 kΩ 2 kΩ 2 kΩ 2 kΩ 0.1 V 0.15 V 0.15 V 0.
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PACKAGE OPTION ADDENDUM www.ti.
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