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HD74LV244A

Hitachi Semiconductor
Part Number HD74LV244A
Manufacturer Hitachi Semiconductor
Description Octal Buffers / Drivers with 3-state Outputs
Published Mar 23, 2005
Detailed Description HD74LV244A Octal Buffers / Drivers with 3-state Outputs ADE-205-246 (Z) 1st Edition March 1999 Description The HD74LV24...
Datasheet PDF File HD74LV244A PDF File

HD74LV244A
HD74LV244A

Overview
HD74LV244A Octal Buffers / Drivers with 3-state Outputs ADE-205-246 (Z) 1st Edition March 1999 Description The HD74LV244A has eight line drivers with three-state outputs in a 20-pin package.
Four non-inverters are included in one circuit.
Each circuit can be independently controlled by the enable signal 1OE or 2OE, which enables outputs when receiving a low-level signal.
Low-voltage operation is suitable for batterypowered products (e.
g.
, notebook computers), and the low-power consumption extends the battery life.
Features • • • • • • VCC = 2.
0 V to 5.
5 V operation All inputs VIH (Max.
) = 5.
5 V (@VCC = 0 V to 5.
5 V) All outputs VO (Max.
) = 5.
5 V (@VCC = 0 V) Typical VOL ground bounce < 0.
8 V (@VCC = 3.
3 V, Ta = 25°C) Typical VOH undershoot > 2.
3 V (@VCC = 3.
3 V, Ta = 25°C) Output current ±8 mA (@VCC = 3.
0 V to 3.
6 V), ±16 mA (@VCC = 4.
5 V to 5.
5 V) Function Table Inputs OE L L H Note: H: L: X: Z: High level Low level Immaterial High impedance A H L X Output Y H L Z HD74LV244A Pin Arrangement 1OE 1 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 2 3 4 5 6 7 8 9 20 VCC 19 2OE 18 1Y1 17 2A4 16 1Y2 15 2A3 14 1Y3 13 2A2 12 1Y4 11 2A1 GND 10 (Top view) 2 HD74LV244A Absolute Maximum Ratings Item Supply voltage range Input voltage range* 1 1, 2 Symbol VCC VI VO Ratings –0.
5 to 7.
0 –0.
5 to 7.
0 –0.
5 to VCC + 0.
5 –0.
5 to 7.
0 Unit V V V Conditions Output voltage range* * Output: H or L VCC: OFF or Output: Z Input clamp current Output clamp current Continuous output current Continuous current through VCC or GND Maximum power dissipation at Ta = 25°C (in still air)*3 I IK I OK IO I CC or IGND PT –20 ±50 ±35 ±70 835 757 mA mA mA mA mW VI < 0 VO < 0 or VO > VCC VO = 0 to VCC SOP TSSOP Storage temperature Tstg –65 to 150 °C Notes: The absolute maximum ratings are values which must not be individually be exceeded, and furthermore, no two of which may be realized at the same time.
1.
The input and output voltage ratings may be exceeded even if the input and output clamp-cur...


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