Catalog
16-Bit Bus Transceiver With 3-State Outputs
Key Features
• Member of the Texas Instruments Widebus™ FamilyOperates From 2.7 V to 3.6 VInputs Accept Voltages to 5.5 VMax tpdof 3.7 ns at 3.3 VIoffand Power-Up 3-State Support Hot InsertionSupports Mixed-Mode Signal Operation on All Ports (5-V Input/Output Voltage With 3.3-V VCC)Latch-Up Performance Exceeds 100 mA Per JESD 78, Class IIESD Protection Exceeds JESD 222000-V Human-Body Model (A114-A)1000-V Charged-Device Model (C101)Widebus is a trademark of Texas Instruments.Member of the Texas Instruments Widebus™ FamilyOperates From 2.7 V to 3.6 VInputs Accept Voltages to 5.5 VMax tpdof 3.7 ns at 3.3 VIoffand Power-Up 3-State Support Hot InsertionSupports Mixed-Mode Signal Operation on All Ports (5-V Input/Output Voltage With 3.3-V VCC)Latch-Up Performance Exceeds 100 mA Per JESD 78, Class IIESD Protection Exceeds JESD 222000-V Human-Body Model (A114-A)1000-V Charged-Device Model (C101)Widebus is a trademark of Texas Instruments.
Description
AI
This 16-bit (dual-octal) noninverting bus transceiver is designed for 2.7-V to 3.6-V VCCoperation.
The SN74LVCZ16245A is designed for asynchronous communication between data buses. The control-function implementation minimizes external timing requirements.
This device can be used as two 8-bit transceivers or one 16-bit transceiver. It allows data transmission 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 that the buses are effectively isolated.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators in a mixed 3.3-V/5-V system environment.
When VCCis between 0 and 1.5 V, the device is in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 1.5 V, OE\ should be tied to VCCthrough 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 hot-insertion applications using Ioffand power-up 3-state. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down, which prevents driver conflict.
This 16-bit (dual-octal) noninverting bus transceiver is designed for 2.7-V to 3.6-V VCCoperation.
The SN74LVCZ16245A is designed for asynchronous communication between data buses. The control-function implementation minimizes external timing requirements.
This device can be used as two 8-bit transceivers or one 16-bit transceiver. It allows data transmission 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 that the buses are effectively isolated.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators in a mixed 3.3-V/5-V system environment.
When VCCis between 0 and 1.5 V, the device is in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 1.5 V, OE\ should be tied to VCCthrough 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 hot-insertion applications using Ioffand power-up 3-state. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down, which prevents driver conflict.
