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S24042/S24043
BLOCK
DIAGRAM
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S24042/S24043
PIN
CONFIGURATION
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S24042/S24043
- 3 and 5 volt
systems
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Precision
RESET Controllers and 4k
I2C™ Memory With
Both Active High and
Active Low Reset
Outputs
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FEATURES
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Precision
Supply Voltage
Monitor
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Dual
reset outputs
for complex
microcontroller
systems
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Integrated
memory write
lockout
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Guaranteed
RESET Assertion
to
VCC=1V
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Power-Fail
Accuracy
Guaranteed
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No
External
Components
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3V
and 5V system
versions
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Low
Power
CMOS
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Active
current less
than 3mA
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Standby
current less
than
25µA
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Memory
Internally
Organized 2k x
8
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Two
Wire Serial
Interface
(I2C™)
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Bidirectional
data transfer
protocol
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Standard
100KHz and Fast
400KHz
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High
Reliability
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Endurance:
1,000,000
erase/write
cycles
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Data
retention: 100
years
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8-Pin
SOIC
Packages
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OVERVIEW
The
S24042 and S24043 are
power supervisory
devices with 4,096 bits
of serial E2PROM. They
are fabricated using
SUMMIT's advanced CMOS
E2PROM technology and
are suitable for both 3
and 5 volt systems.
The memory is internally
organized as 512 x 8. It
features the I2C serial
interface and software
protocol allowing
operation on a simple
two-wire bus.
The S24042 provides a
precision VCC sense
circuit and two open
drain outputs: one
(RESET) drives high and
the other (RESET#)
drives low whenever VCC
falls below VTRIP. The
S24043 is identical to
the S24042 with the
exception being RESET is
not bonded out on pin
7.
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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.
I2C is a trademark of
Philips Corporation.
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