ISL12022 INTERSIL [Intersil Corporation], ISL12022 Datasheet - Page 2

• Manufacturer Part Number: ISL12022
• Manufacturer: INTERSIL [Intersil Corporation]

Ordering Information
Block Diagram
Pin Descriptions
ISL12022IBZ*
*Add “-T” suffix for tape and reel. Please refer to TB347 for details on reel specifications.
NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100%
matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations).
Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J
STD-020.
NUMBER
PIN
PART NUMBER
1
2
3
4
5
6
7
8
(Note)
IRQ/F
SYMBOL
V
GND
SDA
SCL
V
X1
X2
BAT
DD
V
GND
SDA
V
OUT
SCL
BAT
DD
X1
X2
12022 IBZ
Crystal Input. The X1 pin is the input of an inverting amplifier and is intended to be connected to one pin of an
external 32.768kHz quartz crystal. X1 can also be driven directly from a 32.768kHz source.
Crystal Output. The X2 pin is the output of an inverting amplifier and is intended to be connected to one pin of an
external 32.768kHz quartz crystal. X2 should be left open when X1 is driven from external source.
Backup Supply. This input provides a backup supply voltage to the device. V
event that the V
Ground.
Serial Data. SDA is a bi-directional pin used to transfer serial data into and out of the device. It has an open drain
output and may be wire OR’ed with other open drain or open collector outputs.
Serial Clock. The SCL input is used to clock all serial data into and out of the device.
Interrupt Output/Frequency Output. Multi-functional pin that can be used as interrupt or frequency output pin. The
function is set via the configuration register. It is an open-drain output.
Power Supply.
V
TRIP
2
MARKING
BUFFER
BUFFER
PART
SDA
SCL
OSCILLATOR
CRYSTAL
TEMPERATURE
DD
SENSOR
POR
supply fails. This pin should be tied to ground if not used.
INTERNAL
INTERFACE
SWITCH
SUPPLY
V
DD
I
2.7 to 5.5
2
C
FREQUENCY
RANGE
(V)
CONTROL
FREQUENCY
ISL12022
DIVIDER
OUT
RTC
DESCRIPTION
TEMP RANGE
REGISTERS
CONTROL
ALARM
-40 to +85
LOGIC
(°C)
8 Ld SOIC
PACKAGE
BAT
(Pb-free)
DAY OF WEEK
REGISTERS
SECONDS
CONTROL
MINUTES
HOURS
MONTH
supplies power to the device in the
SRAM
YEAR
USER
DATE
M8.15
IRQ/F
DWG. #
OUT
PKG.
June 23, 2009
FN6659.2