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HD74ALVCHS162830

1-bit to 2-bit Address Driver with 3-state Outputs

Hitachi -> Renesas Electronics 

HD74ALVCHS162830

1-bit to 2-bit Address Driver with 3-state Outputs

ADE-205-221 (Z)

Preliminary

1st. Edition

July 1998

Description

This 1-bit to 2-bit address driver is designed for 2.3 V to 3.6 V VCC operation. To ensure the 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. Active bus hold

circuitry is provided to hold unused or floating inputs at a valid logic level. All outputs, which are designed

to sink up to 12 mA, include equivalent 26 Ω resistors to reduce overshoot and undreshoot.

Diodes to VCC have been added on the inputs to clamp overshoot.

Features

• VCC = 2.3 V to 3.6 V

• Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25°C)

• Typical VOH undershoot > 2.0 V (@VCC = 3.3 V, Ta = 25°C)

• High output current ±12 mA (@VCC = 3.0 V)

• Bus hold on data inputs eliminates the need for external pullup / pulldown resistors

• All outputs have equivalent 26 Ω series resistors, so no external resistors are required

• Diode on inputs clamp overshoot

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