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SN74LVC244A_Q1

PinoutSpecificationsSupply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .−0.5 V to 6.5 VInput voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .−0.5 V to 6.5 V Voltage range applied to any output in t...

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SN74LVC244A_Q1: PinoutSpecificationsSupply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .−0.5 V to 6.5 VInput voltage range, VI (see Note 1) . . . . . . . . . . ....

SN74LVC244A_Q1 Data Sheet

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Part Number:
SN74LVC244A_Q1
Supply Ability:
5000

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Product Details

Description



Pinout

Connection Diagram


Specifications

Supply voltage range, VCC  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . .−0.5 V to 6.5 V
Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .−0.5 V to 6.5 V
Voltage range applied to any output in the high-impedance or power-off state, VO
     (see Note 1)  . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . .. . . . .−0.5 V to 6.5 V
Voltage range applied to any output 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 VCC or GND  . . . . . . . . . . . . . . . . .. . . . . . . . . . ..  . . .±100 mA
Package thermal impedance, JA (see Note 3): DW package  . . . . . . . . . . . .  . .. . .58°C/W
                                                                           PW package  . . . . . . . . . . . .  . .. . .83°C/W
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  .−65°C to 150°C
Power dissipation, Ptot (TA = −40°C to 125°C) (see Notes 4 and 5) . . . . .  .  . . . . .500 mW


Description

This octal buffer/line driver SN74LVC244A_Q1 is operational at 1.5-V to 3.6-V VCC, but is designed specifically for 1.65-V to 3.6-V VCC operation.

The SN74LVC244A is organized as two 4-bit line drivers with separate output-enable (OE) inputs. When OE is low, the device passes data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state.

SN74LVC244A_Q1 Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in a mixed 3.3-V/5-V system environment.

To ensure the high-impedance state during power up or power down, SN74LVC244A_Q1 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 device SN74LVC244A_Q1 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.




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