NS486SXF Datasheet, PDF (1/44 Pages) National Semiconductor (TI) – NS486TMSXF Optimized 32-Bit 486-Class Controller with On-Chip Peripherals for Embedded Systems

ADVANCE INFORMATION
February 1997
NS486^TMSXF Optimized 32-Bit 486-Class Controller
with On-Chip Peripherals for Embedded Systems
General Description
The NS486SXF is a highly integrated embedded system
controller incorporating an Intel486^TM-class 32-bit proces-
sor all of the necessary System Service Elements and a
set of peripheral I O controllers tailored for embedded con-
trol systems It is ideally suited for a wide variety of applica-
tions running in a segmented protect-mode environment
Key Features
Y _{100% compatible with VxWorks VRTX QNX Neu-}
trino pSOSa^TM and other popular real-time executives
and operating system kernels
Y _{Intel486 instruction set compatible (protected mode}
only) with optimized performance
Y _{CPU includes a 1 Kbyte Instruction Cache}
Y _{Operation at 25 MHz with 5V supply}
Y _{Low cost 160-pin PQFP package}
Y _{Industry standard interrupt controller timers real time}
clock UART with IrDA v1 0 (Infrared Data Association)
port
Y _{Intel 82365 compatible PCMCIA interface}
Y _{Protected WATCHDOG}TM _timer
Y _{Optimized DRAM Controller (supports two banks up to}
8 Mbytes each)
Y _{Up to nine versatile programmable chip selects}
Y _{Glueless interface to ISA peripherals}
Y _{Arbitration support for auxiliary processor}
Y _{Four external DMA channels (max transfer rate of 25}
MByte sec 25 MHz) support many transfer modes
Y _{High performance IEEE 1284 (ECP) Bidirectional}
Parallel Port
Y _MICROWIRETM _{Access bus synchronous serial}
interfaces
Y _{LCD Controller for an up to 4 grey scale supertwist}
Liquid Crystal Displays up to 480 X 320
Y _{Reconfigurable I O Up to 29 I O pins can be used as}
general purpose bidirectional I O lines
Y _{Flexible programmable multilevel power saving modes}
maximize power savings
NS486SXF Single-Chip Embedded Controller
TRI-STATE is a registered trademark of National Semiconductor Corporation
NS486TM WATCHDOGTM and MICROWIRETM are trademarks of National Semiconductor Corporation
Intel486TM is a trademark of Intel Corporation
QNX is a registered trademark of QNX Software Systems Inc
VRTX is a registered trademark of Microtec Research Inc
VxWorks is a registered trademark of Wind River Systems Inc
pSOSaTM is a trademark of Integrated Systems Inc
PowerPack is a registered trademark of Microtek International
C1996 National Semiconductor Corporation TL EE12514
RRD-B30M27 Printed in U S A
TL EE 12514 – 1
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