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X4043-45 Datasheet(PDF) 4 Page - Intersil Corporation

Part # X4043-45
Description  CPU Supervisor with 4kbit EEPROM
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Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

X4043-45 Datasheet(HTML) 4 Page - Intersil Corporation

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4
FN8118.3
December 9, 2015
The memory portion of the device is a CMOS Serial
EEPROM array with Intersil’s block lock protection.
The array is internally organized as x 8. The device
features an 2-wire interface and software protocol
allowing operation on an I2C bus.
The device utilizes Intersil’s proprietary Direct Write
cell, providing a minimum endurance of 1,000,000
cycles and a minimum data retention of 100 years.
PIN CONFIGURATION
NC
VSS
VCC
SDA
SCL
3
2
4
1
6
7
5
8
NC
WP
RESET
8-Pin JEDEC SOIC, MSOP
(PDIP no longer available or supported)
Pin
(SOIC/MSOP/DIP)
Name
Function
1
NC
No internal connections
2
NC
No internal connections
3
RESET/RESET
Reset Output. RESET is an active LOW, open drain output which goes active
whenever VCC falls below VTRIP. It will remain active until VCC rises above the
VTRIP for tPURST. RESET/RESET goes active if the Watchdog Timer is enabled
and SDA remains either HIGH or LOW longer than the selectable Watchdog time
out period. RESET/RESET goes active on power-uppower-up and remains
active for 250ms after the power supply stabilizes. RESET is an active high open
drain output. An external pull up resistor is required on the RESET/RESET pin.
4VSS
Ground
5SDA
Serial Data. SDA is a bidirectional pin used to transfer data into and out of the
device. It has an open drain output and may be wire ORed with other open drain
or open collector outputs. This pin requires a pull up resistor and the input buffer
is always active (not gated).
6SCL
Serial Clock. The Serial Clock input controls the serial bus timing for data input and
output.
7WP
Write Protect. WP HIGH prevents writes to any location in the device (including
the control register). Connect WP pin to VSS when it is not used.
8VCC
Supply Voltage
X4043, X4045


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