isl12022m Intersil Corporation, isl12022m Datasheet - Page 2

• Manufacturer Part Number: isl12022m
• Description: Real Time Clock With Embedded Crystal, ??5ppm Accuracy
• Manufacturer: Intersil Corporation

Pin Descriptions
Ordering Information
Block Diagram
ISL12022MIBZ*
*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.
1, 2, 3, 4, 5, 9,
10, 16, 17,
NUMBER
18, 19, 20
6, 8, 15
PIN
PART NUMBER
12
13
14
11
7
(Note)
IRQ/F
SYMBOL
V
GND
SDA
SCL
V
NC
BAT
V
DD
GND
SDA
V
SCL
BAT
OUT
DD
ISL12022MIBZ
V
No Connection. Do not connect to a signal or supply voltage.
Backup Supply. This input provides a backup supply voltage to the device. V
the 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. The output is open drain and requires a pull-up resistor.
Power Supply.
TRIP
+ -
2
MARKING
BUFFER
BUFFER
PART
SDA
SCL
OSCILLATOR
CRYSTAL
TEMPERATURE
SENSOR
POR
DD
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
ISL12022M
RANGE
(V)
FREQUENCY
CONTROL
DIVIDER
OUT
RTC
DESCRIPTION
TEMP RANGE
REGISTERS
CONTROL
ALARM
-40 to +85
LOGIC
(°C)
20 Ld SOIC
PACKAGE
(Pb-Free)
DAY OF WEEK
REGISTERS
BAT
SECONDS
CONTROL
MINUTES
HOURS
MONTH
SRAM
YEAR
USER
DATE
supplies power to the device in
M20.3
IRQ/F
DWG. #
December 18, 2008
PKG.
OUT
FN6668.4