SN74AVCB164245-EP Datasheet, PDF (1/17 Pages) Texas Instruments – 16-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

SN74AVCB164245-EP
www.ti.com
SCES845A – JANUARY 2013 – REVISED FEBRUARY 2013
16-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
Check for Samples: SN74AVCB164245-EP
FEATURES
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•2 Member of the Texas Instruments Widebus™
Family
• DOC™ Circuitry Dynamically Changes Output
Impedance, Resulting in Noise Reduction
Without Speed Degradation
• Dynamic Drive Capability Is Equivalent to
Standard Outputs With I_OH and I_OL of ±24 mA at
2.5-V V_CC
• Control Inputs V_IH and V_IL Levels Are
Referenced to V_CCB Voltage
• If Either V_CC Input Is at GND, Both Ports Are in
the High-Impedance State
• Overvoltage-Tolerant Inputs and Outputs
Allow Mixed-Voltage-Mode Data
Communications
• I_off Supports Partial-Power-Down Mode
Operation
• Fully Configurable Dual-Rail Design Allows
Each Port to Operate Over Full 1.4-V to 3.6-V
Power-Supply Range
• Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
• ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 750-V Charged-Device Model (C101)
SUPPORTS DEFENSE, AEROSPACE,
AND MEDICAL APPLICATIONS
• Controlled Baseline
• One Assembly and Test Site
• One Fabrication Site
• Available in Military (-55°C to 125°C)
Temperature Ranges ⁽¹⁾
• Extended Product Life Cycle
• Extended Product-Change Notification
• Product Traceability
(1) Custom temperature ranges available
DESCRIPTION
This 16-bit (dual-octal) noninverting bus transceiver uses two separate configurable power-supply rails. The
A port is designed to track V_CCA. V_CCA accepts any supply voltage from 1.4 V to 3.6 V. The B port is designed to
track V_CCB. V_CCB accepts any supply voltage from 1.4 V to 3.6 V. This allows for universal low-voltage
bidirectional translation between any of the 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes.
The SN74AVCB164245 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 SN74AVCB164245 is designed so that the control pins (1DIR, 2DIR, 1OE, and 2OE) are supplied by V_CCB.
To ensure the high-impedance state during power up or power down, OE should be tied to V_CCB through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
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. If either V_CC input is at GND,
both ports are in the high-impedance state.
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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.
Widebus, DOC are trademarks of Texas Instruments.
2
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.
Copyright © 2013, Texas Instruments Incorporated