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A
complete
index
to all Product
Summary
pages
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Download
the entire
S93662/S93663
data
sheet
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Download
SMX3199
programming
module for
these
devices
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Applications
Note
10:
Using Summit
Reset
Controllers in
Multi-Microcontroller
Systems
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Application
Aids
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Helpful
hints and
pointers in PDF
format.
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AA01
Disabling the
Watchdog Timer
of Summit S93WD
devices
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Would
you
like
to
evaluate
a
sample?
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S93WD662/S93WD663
BLOCK
DIAGRAM
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S93WD662/S93WD663
PIN
CONFIGURATION
8-PIN
SOIC
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S93WD662
and S93WD663
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Precision
Supply-Voltage Monitor
and Reset Controller
With a Watchdog Timer
and 4k-bit Microwire
Memory
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FEATURES
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Precision
Monitor &
RESET
Controller
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RESET
and RESET#
Outputs
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Guaranteed
RESET Assertion
to
VCC
= 1V
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200ms
Reset Pulse
Width
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Internal
1.26V Reference
with ±1%
Accuracy
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ZERO
External
Components
Required
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Watchdog
Timer
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Nominal
1.6 Second
Time-out
Period
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Reset
by Any
Transition of
CS
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Memory
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4K-bit
Microwire
Memory
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S93WD662
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-
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Internally
Ties
ORG
Low
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-
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100%
Compatible
With
all
8-bit
Implementations
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Sixteen
Byte
Page
Write
Capability
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S93WD663
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-
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Internally
Ties
ORG
Low
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-
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100%
Compatible
With
all
16-bit
Implementations
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Eight
Word
Page
Write
Capability
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OVERVIEW
The
S93WD662 and S93WD663
are precision power
supervisory circuits
providing both active
high and active low
reset outputs. Both
devices incorporate a
watchdog timer with a
nominal time-out value
of 1.6 seconds.
Both devices have
4k-bits of E2PROM memory
that is accessible via
the industry standard
microwire bus. The
S93WD662 is configured
with an internal ORG pin
tied low providing a
8-bit byte organization
and the S93WD663 is
configured with an
internal ORG pin tied
high providing a 16-bit
word organization. Both
the S93WD662 and
S93WD663 have page write
capability. The devices
are designed for a
minimum 100,000
program/erase cycles and
have data retention in
excess of 100
years.
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ORDERING
INFORMATION
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SUMMIT
Microelectronics, Inc.
reserves the right to
make changes to the
products contained in
this publication in
order to improve design,
performance or
reliability. SUMMIT
Microelectronics, Inc.
assumes no
responsibility for the
use of any circuits
described herein,
conveys no license under
any patent or other
right, and makes no
representation that the
circuits are free of
patent infringement.
Charts and schedules
contained herein reflect
representative operating
parameters, and may vary
depending upon a user's
specific application.
While the information in
this publication has
been carefully checked,
SUMMIT Microelectronics,
Inc. shall not be liable
for any damages arising
as a result of any error
or omission.
SUMMIT Microelectronics,
Inc. does not recommend
the use of any of its
products in life support
or aviation applications
where the failure or
malfunction of the
product can reasonably
be expected to cause any
failure of either system
or to significantly
affect their safety or
effectiveness. Products
are not authorized for
use in such applications
unless SUMMIT
Microelectronics, Inc.
receives written
assurances, to its
satisfaction, that: (a)
the risk of injury or
damage has been
minimized; (b) the user
assumes all such risks;
and (c) potential
liability of SUMMIT
Microelectronics, Inc.
is adequately protected
under the
circumstances.
Revision 2.1 - This
document supersedes all
previous versions.
Please check the Summit
Microelectronics, Inc.
web site at
www.summitmicro.com
for data sheet
updates.
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