Document
HD74ALVCH16827
20-bit Buffers / Drivers with 3-state Outputs
REJ03D0033-0400Z (Previous ADE-205-140B(Z))
Rev.4.00 Oct.02.2003
Description
The HD74ALVCH16827 is composed of two 10-bit sections with separated output enable signals. For either 10-bit buffer section, the two output enable (1OE1 and 1OE2 or 2OE1 and 2OE2) inputs must both be low for the corresponding Y outputs to be active. If either output enable input is high, the outputs of that 10-bit buffer section are in the high impedance state. Active bus hold circuitry is provided to hold unused or floating data inputs at a valid logic level.
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 ±24 mA (@VCC = 3.0 V) • Bus hold on data inputs eliminates the need for external pullup / pulldown resistors
Function Table
Inputs
OE1
L L H X H : High level H : High level X : Immaterial Z : High impedance.