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CAT13008 Datasheet(PDF) 1 Page - Catalyst Semiconductor

Part No. CAT13008
Description  Voltage Supervisor with Microwire Serial CMOS EEPROM
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Maker  CATALYST [Catalyst Semiconductor]
Homepage  http://www.catalyst-semiconductor.com
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CAT13008 Datasheet(HTML) 1 Page - Catalyst Semiconductor

 
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CAT130xx
© 2007 Catalyst Semiconductor, Inc.
1
Doc. No. 1121 Rev. A
Characteristics subject to change without notice
Voltage Supervisor with Microwire Serial
CMOS EEPROM
FEATURES
Precision Power Supply Voltage Monitor
5V, 3.3V, 3V & 2.5V systems
7 threshold voltage options
Active High or Low Reset
Valid reset guaranteed at VCC = 1 V
High Speed Operation
Selectable x8 or x16 memory organization
Low power CMOS technology
1,000,000 Program/Erase cycles
100 year data retention
Industrial temperature range
RoHS-compliant 8-pin SOIC package
For Ordering Information details, see page 13.
PIN CONFIGURATION
SOIC (W)
CS
1
8 VCC
SK
2
7 RST/ RST
¯¯¯¯
DI
3
6 ORG
DO
4
5 GND
PIN FUNCTION
Pin Name
Function
CS
Chip Select
SK
Clock Input
DI
Serial Data Input
DO
Serial Data Output
GND
Ground
ORG
Memory Organization
RST/ RST
¯¯¯¯
Reset Output
VCC
Power Supply
DESCRIPTION
The CAT130xx (see table below) are memory and
supervisory
solutions
for
microcontroller
based
systems. A CMOS serial EEPROM memory and a
system power supervisor with brown-out protection
are integrated together. Memory interface is via
Microwire serial protocol.
The CAT130xx provides a precision VCC sense circuit
with two reset output options: CMOS active low output
or CMOS active high. The RESET output is active
whenever VCC is below the reset threshold or falls
below the reset threshold voltage.
The power supply monitor and reset circuit protect
system controllers during power up/down and against
brownout conditions. Seven reset threshold voltages
support 5V, 3.3V, 3V and 2.5V systems. If power
supply voltages are out of tolerance reset signals
become active, preventing the system microcontroller,
ASIC or peripherals from operating. Reset signals
become inactive typically 240ms after the supply
voltage exceeds the reset threshold level.
MEMORY SIZE SELECTOR
Product
Memory density
13001
1-Kbit
13004
4-Kbit
13008
8-Kbit
13016
16-Kbit
THRESHOLD SUFFIX SELECTOR
Nominal Threshold
Voltage
Threshold Suffix
Designation
4.63V
L
4.38V
M
4.00V
J
3.08V
T
2.93V
S
2.63V
R
2.32V
Z
Note:
When the ORG pin is connected to VCC, the x16 organization is
selected. When it is connected to ground, the x8 pin is selected. If
the ORG pin is left unconnected, then an internal pullup device will
select the x16 organization.


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