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SN74AVC245

PinoutSpecificationsSupply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.5 V to 4.6 VInput voltage range, VI: Except I/O ports (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . ..0.5 V to 4.6 VI/O ports (see Notes 1 and...

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SeekIC No. : 004498547 Detail

SN74AVC245: PinoutSpecificationsSupply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.5 V to 4.6 VInput voltage range, VI: Except I/O ports (se...

SN74AVC245 Data Sheet

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Part Number:
SN74AVC245
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Pinout

Connection Diagram


Specifications

Supply voltage range, VCC  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . .0.5 V to 4.6 V
Input voltage range, VI: Except I/O ports (see Note 1) . . . . . . . . . . . . . . . . . . . . . .  . . ..0.5 V to 4.6 V 
                                       I/O ports (see Notes 1 and 2)  . . . . . . . . . . . . . . . . . . . . .0.5 V to VCC + 0.5 V
Voltage range applied to any input/output
     when the output is in the high-impedance or power-off state, VO (see Note 1)  . . . .  .0.5 V to 4.6 V
Voltage range applied to any input/output
     when the output is in the high or low state, VO (see Notes 1 and 2)  . . . . . . .  .0.5 V to VCC + 0.5 V
Input clamp current, IIK (VI < 0)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . .50 mA
Output clamp current, IOK (VO < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . .50 mA
Continuous output current, IO  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . .. . . . . . . .±50 mA
Continuous current through each VCC or GND  . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . .  . . . . .±100 mA
Package thermal impedance, JA (see Note 3): DGV package  . . . . . . . . . . . . . . . . . . . . . . . . . . . 92°C/W
                                                                          DW package  . . . . . . . . . . . . . . . . . . . . . . . . . . . .58°C/W
                                                                          PW package  . . . . . . . . . . . . . . . . . . . . . . . . . .  . .83°C/W
Storage temperature range, Tstg  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .65°C to 150°C


Description

A SN74AVC245 Dynamic Output Control (DOC) circuit is implemented, which, during the transition, initially lowers the output impedance to effectively drive the load and, subsequently, raises the impedance to reduce noise. Figure 1 shows typical VOL vs IOL and VOH vs IOH curves to illustrate the output impedance and drive capability of the circuit. At the beginning of the signal transition, the DOC circuit provides a maximum dynamic drive that is equivalent to a high-drive standard-output device. For more information, refer to TI application reports AVC Logic Family Technology and Applications, literature number SCEA006, and Dynamic Output Control (DOCTM) Circuitry Technology and Applications, literature number SCEA009.

This octal bus transceiver is operational at 1.2-V to 3.6-V VCC, but is designed specifically for 1.65-V to 3.6-V VCC operation.

The SN74AVC245 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 device so the buses are effectively isolated.

This SN74AVC245 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.

To ensure the SN74AVC245 high-impedance state during power up or power down, 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.

This SN74AVC245 device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

The SN74AVC245 is characterized for operation from 40°C to 85°C.




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