SN74LVC244AQDWRQ1

Polarity : Non-Inverting
Mounting Style : SMD/SMT
Packaging : Reel
Maximum Operating Temperature : + 125 C
Number of Input Lines : 8
Supply Voltage - Min : 1.65 V
Number of Output Lines : 3
Supply Voltage - Max : 3.6 V
Package / Case : SOIC-20


Pinout




Specifications

Supply voltage range, V_CC  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . .−0.5 V to 6.5 V
Input voltage range, V_I (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .−0.5 V to 6.5 V
Voltage range applied to any output in the high-impedance or power-off state, V_O
     (see Note 1)  . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . .. . . . .−0.5 V to 6.5 V
Voltage range applied to any output in the high or low state, V_O
     (see Notes 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to V_CC + 0.5 V
Input clamp current, I_IK (V_I < 0 )  . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . .   . . .−50 mA
Output clamp current, I_OK (V_O < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .−50 mA
Continuous output current, I_O  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . ..  . . . .±50 mA
Continuous current through V_CC or GND  . . . . . . . . . . . . . . . . .. . . . . . . . . . ..  . . .±100 mA
Package thermal impedance, _JA (see Note 3): DW package  . . . . . . . . . . . .  . .. . .58°C/W
                                                                           PW package  . . . . . . . . . . . .  . .. . .83°C/W
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  .−65°C to 150°C
Power dissipation, P_tot (T_A = −40°C to 125°C) (see Notes 4 and 5) . . . . .  .  . . . . .500 mW


Description

This octal buffer/line driver SN74LVC244AQDWRQ1 is operational at 1.5-V to 3.6-V V_CC, but is designed specifically for 1.65-V to 3.6-V V_CC 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.

SN74LVC244AQDWRQ1 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, SN74LVC244AQDWRQ1 OE should be tied to V_CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

This device SN74LVC244AQDWRQ1 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.

Parameters:

Technical/Catalog Information	SN74LVC244AQDWRQ1
Vendor	Texas Instruments
Category	Integrated Circuits (ICs)
Logic Type	Line Driver, Non-Inverting
Package / Case	20-SOIC (7.5mm Width)
Packaging	Tape & Reel (TR)
Mounting Type	Surface Mount
Number of Bits per Element	4
Number of Elements	2 - Dual
Operating Temperature	-40°C ~ 85°C
Voltage - Supply	1.65 V ~ 3.6 V
Current - Output High, Low	24mA, 24mA
Drawing Number	296; 4040000-4; DW; 20
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	SN74LVC244AQDWRQ1 SN74LVC244AQDWRQ1