HD74ALVCHS162830 Datasheet, PDF (1/11 Pages) Hitachi Semiconductor – 1-bit to 2-bit Address Driver with 3-state Outputs

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 V_CC operation. To ensure the high
impedance state during power up or power down, 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. 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 V_CC have been added on the inputs to clamp overshoot.
Features
• V_CC = 2.3 V to 3.6 V
• Typical V_OL ground bounce < 0.8 V (@V_CC = 3.3 V, Ta = 25°C)
• Typical V_OH undershoot > 2.0 V (@V_CC = 3.3 V, Ta = 25°C)
• High output current ±12 mA (@V_CC = 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