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The 'SN74LVTH16245 devices are 16-bit (dual-octal) noninverting 3-state transceivers designed for low-voltage(3.3-V) VCC operation, but with the capability to provide a TTL interface to a 5-V system environment.
The devices are designed for asynchronous communication between two data buses. The logic levels of thedirection-control (DIR) input and the output-enable (OE) input activate either the B-port outputs or the A-portoutputs or place both output ports into the high-impedance mode. The device transmits data from the A bus tothe B bus when the B-port outputs are activated, and from the B bus to the A bus when the A-port outputs areactivated. The input circuitry on both A and B ports is always active and must have a logic HIGH or LOW levelapplied to prevent excess ICC and ICCZ.
Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldownresistors with the bus-hold circuitry is not recommended.
When VCC is between 0 and 1.5 V, the devices are 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 VCC through a pullup resistor;the minimum value of the resistor is determined by the current-sinking capability of the driver.
The disables the outputs, preventing damaging current backflow through the devices when they are 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.
||Number of Channels per Chip||16|
||Data Flow Direction||Bi-Directional|
||Maximum Operating Supply Voltage||3.6 V|
||Logic Function||Bus Transceiver|
||Tolerant I/Os||5 V|
||Number of Elements per Chip||2|
||Typical Operating Supply Voltage||3.3 V|
||Number of Output Enables per Element||1 Low|
||Product Dimensions||15.88 x 7.49 x 2.59 mm|
||Operating Temperature||-40 to 85 °C|
|Country Of Origin:||Malaysia|
|LVT Family Characteristics||Application-Note||19980301|
|HSPICE Model of SN74LVTH16245A||Support-and-Download-Files||20081016|
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