Quad. Bus Buffer Gates with 3-state Outputs
HD74LV125A
Quad. Bus Buffer Gates with 3-state Outputs
ADE-205-245 (Z) 1st Edition March 1999 Description
The HD74LV125...
HD74LV125A
Quad. Bus Buffer Gates with 3-state Outputs
ADE-205-245 (Z) 1st Edition March 1999 Description
The HD74LV125A features independent line drivers with three state outputs. Each output is disabled when the associated output enable (OE) input is high. To ensure the high impedance state during power up or power down, OE should be connected to VCC through a pull-down resistor; the minimum value of the resistor is determined by the current souring capability of the driver. Low-
voltage and high-speed operation is suitable for the battery-powered 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
HD74LV125A
Pin Arrangement
1OE 1 1A 2 1Y 3 2OE 4 2A 5 2Y 6 GND 7
14 VCC 13 4OE 12 4A 11 4Y 10 3OE 9 3A 8 3Y
(Top view)
2
HD74LV125A
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...