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ISL12022MAIBZ-T View Datasheet(PDF) - Intersil

Part NameDescriptionManufacturer
ISL12022MAIBZ-T Low Power RTC with Battery Backed SRAM, Integrated ±5ppm Temperature Compensation and Auto Daylight Saving Intersil
Intersil Intersil
ISL12022MAIBZ-T Datasheet PDF : 29 Pages
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ISL12022MA
Pin Descriptions (Continued)
PIN
NUMBER
12
13
14
1, 2, 3, 8,
18, 19, 20
SYMBOL
DESCRIPTION
SCL
Serial Clock. The SCL input is used to clock all serial data into and out of the device. The input buffer
on this pin is always active (not gated). It is disabled when the backup power supply on the VBAT pin
is activated to minimize power consumption.
IRQ/FOUT
Interrupt Output/Frequency Output (Default 32.768kHz frequency output). This dual function pin
can be used as an interrupt or frequency output pin. The IRQ/FOUT mode is selected via the frequency
out control bits of the control/status register. Interrupt Mode. The pin provides an interrupt signal
output. This signal notifies a host processor that an alarm has occurred and requests action. It is an
open drain active low output. Frequency Output Mode. The pin outputs a clock signal, which is
related to the crystal frequency. The frequency output is user selectable and enabled via the I2C bus.
It is an open drain output. The output is open drain and requires a pull-up resistor.
VDD
GND
Power Supply. Chip power supply and ground pins. The device will operate with a power supply from
VDD = 2.7V to 5.5VDC. A 0.1µF capacitor is recommended on the VDD pin to ground.
Ground Pin.
Ordering Information
PART NUMBER
(Notes 2, 3)
PART
MARKING
VDD RANGE TEMP RANGE
(V)
(°C)
PACKAGE
(RoHS Compliant)
PKG.
DWG. #
ISL12022MAIBZ
ISL12022MAIBZ
2.7 to 5.5
-40 to +85 20 Ld SOIC
M20.3
ISL12022MAIBZ-T (Note 1)
ISL12022MAIBZ
2.7 to 5.5
-40 to +85 20 Ld SOIC (Tape and Reel) M20.3
1. Please refer to TB347 for details on reel specifications.
2. These Intersil plastic packaged products employ special material sets, molding compounds and 100% matte tin plate plus
anneal (e3) termination finish. These products do contain Pb but they are RoHS compliant by exemption 7 (Pb in high melting
temperature type solders, electronic ceramic parts (e.g. piezoelectronic devices)) and exemption 5 (Pb in glass of electronic
components). These Intersil RoHS compliant products are compatible with both SnPb and Pb free soldering operations. These
Intersil RoHS compliant products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free
requirements of IPC/JEDEC J STD-020.
3. For Moisture Sensitivity Level (MSL), please see device information page for ISL12022MA. For more information on MSL
please see techbrief TB363.
3
FN7575.1
July 9, 2010
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