DP802518 TROPIC Tsunami TROPIC II Microcode ROM
PRELIMINARY
October 1993
DP802518 TROPIC Tsunami
TM
TROPIC II
TM
Microcode ROM
General Description
The DP802518 Tsunami is the microcode device for the
high performance Token Ring Protocol Interface Control-
ler TROPIC II Token Ring chipset this device features an
interface compatible to the DP80253 controller which al-
lows direct connection without the use of glue logic
The DP802518 Tsunami is implemented using National
Semiconductor鈥檚 Advanced CMOS process and operates
from a single 5V
g
10% power supply The Tsunami is avail-
able in either a 28-pin DIP or 32-pin PLCC package
Features
Y
Y
Y
TROPIC II compatible
Glueless interface
High performance CMOS
Surface Mount and DIP Packages
28-pin molded plastic DIP
32-pin PLCC
Block Diagram
TL F 11914 鈥?1
TRI-STATE is a registered trademark of National Semiconductor Corporation
TROPIC Tsunami
TM
and TROPIC II
TM
are trademarks of National Semiconductor Corporation
C
1995 National Semiconductor Corporation
TL F 11914
RRD-B30M105 Printed in U S A