Specifications

2 Élan™SC310 Microcontroller Data Sheet
PRELIMINARY
GENERAL DESCRIPTION
The ÉlanSC310 microcontroller is a highly integrated,
low-voltage, single-chip implementation of the
Am386SXLV microprocessor plus most of the addi-
tional logic needed for an AT-compatible personal com-
puter. It is ideal for embedded PC applications, such as
point-of-sale equipment, web appliances, industrial
controls, and communication equipment.
The ÉlanSC310 microcontroller from AMD is part of the
growing Élan family of mobile computing products,
which leverage existing AMD core modules. The
ÉlanSC310 microcontroller demonstrates the feasibil-
ity of constructing highly integrated components built
from standard cores and getting these products to mar-
ket quickly.
The ÉlanSC310 microcontroller does this by combining
an Am386SXLV low-voltage microprocessor core with
a memory control unit, a Power Management Unit
(PMU), and the bus control and peripheral control logic
of a PC/AT-compatible computer. For more information
about the Am386 microprocessors, see the
Am386

SX/SXL/SXLV Data Sheet , order #21020 and
the
AM386

DX/DXL Data Sheet , order #21017.
For more information about the ÉlanSC310 microcon-
troller, see the
Élan
TM
SC310 Microcontroller Program-
mer’s Reference Manual
, order #20665.
The ÉlanSC310 microcontroller includes a memory
controller that supports up to 16 Mbyte of DRAM,
Flash, or ROM; power management functions; a bus
controller that supports local or ISA bus; a serial port
controller that is 16450 UART compatible; a bidirec-
tional EPP-compliant parallel port; a 146818A-compat-
ible real-time clock; internal phase-locked loops for
clock generation; and standard PC logic chip functions
(8259A, 8237A, and 8254).
The ÉlanSC310 microcontroller’s true static design
and low operating voltage enable battery-powered op-
eration and lower weight for embedded PC applica-
tions. The internal core of the ÉlanSC310
microcontroller operates at 3.3 V and the I/O pads
allow either 3.3-V or 5-V operation. Lowering typical
operating voltage from 5 V to 3.3 V can dramatically re-
duce power consumption.
Functionally, the ÉlanSC310 microcontroller is a 100%
DOS/Windows-compatible, PC/AT-compatible com-
puter on a chip that is designed to furnish the customer
with a high-performance, low-power system solution,
providing state-of-the-art power management in a
small physical footprint.
The ÉlanSC310 microcontroller is available in both 25-
and 33-MHz versions, in a 208-lead Plastic Shrink
Quad Flat Pack (QFP) (PQR package) and a 208-lead
Thin Quad Flat Pack (TQFP) (PQL package).
Note: Unless specified otherwise, the timings in this
data sheet are based on the 33-MHz version of the
ÉlanSC310 microcontroller.
CUSTOMER SERVICE
The AMD customer service network includes U.S. of-
fices, international offices, and a customer training cen-
ter. Expert technical assistance is available from the
AMD worldwide staff of field application engineers and
factory support staff who can answer E86 family hard-
ware and software development questions.
Hotline and World Wide Web Support
For answers to technical questions, AMD provides a
toll-free number for direct access to our corporate ap-
plications hotline. Also available is the AMD World
Wide Web home page and FTP site, which provides the
latest E86 family product information.
Corporate Applications Hotline
[phone] Toll-free for U.S. and Canada
44-(0) 1276-803-299 U.K. and Europe hotline
World Wide Web Home Page and FTP Site
To access the AMD home page, go to http://
www.amd.com.
Questions, requests, and input concerning AMD’s
WWW pages can be sent via E-mail to webmas-
[e-mail].
To download documents and software, ftp to
ftp.amd.com and log on as anonymous using your
e-mail address as a password. Or via your web
browser, go to ftp://ftp.amd.com.
Documentation and Literature
Free E86 family information such as data books, user’s
manuals, data sheets, application notes, the
FusionE86 Partner Solutions Catalog, and other litera-
ture is available with a simple phone call. Internation-
ally, contact your local AMD sales office for complete
E86 family literature.
Literature Ordering
[phone] Toll-free for U.S. and Canada
[phone] Direct dial worldwide