AmZ8140
AmZ8140 is Octal 3-State Buffers manufactured by AMD.
DESCRIPTION
The Am Z8140 and Am Z8144 are octal buffers fabricated using advanced low-power Schottky technology. The 20-pin package provides improved printed circuit board density for use in memory address and clock driver applications.
Three-state outputs are provided to drive bus lines directly. The Am Z8140 and Am Z8144 are specified at 48m A and 24m A output sink current. Four buffers are enabled from one mon line and the other four from a second enable line. The Am Z8140 and Am Z8144 enables are of similar polarity for use as a unidirectional buffer in which both halves are enabled simultaneously.
Improved noise rejection and high fan-out are provided by input hysteresis and low current PNP inputs.
Am Z8140
LOGIC DIAGRAMS Am Z8144
DO 01 02 03 OE03
YO 04 Y1 05 '(2 06 '(3 07
<5E47
Y4
Vs INPUTS OUTPUT
OE 0
'(6 H X
Y7 L L
Y4
INPUTS OUTPUT
OE Dj
Y6
Y7
BLI-193
Dm
DO '17 01 Y6 02 YS 03 Y4 GNO
BU-l95
Note: All devices have input hysteresis.
CONNECTION DIAGRAMS Top...
