ISL12020M Datasheet, PDF (2/32 Pages) Intersil Corporation – Low Power RTC with Battery Backed SRAM, Integrated ±5ppm Temperature Compensation and Auto Daylight Saving

Block Diagram
ISL12020M
SDA
SCL
X1
SDA
BUFFER
SCL
BUFFER
I²C
INTERFACE
X2
V_DD
V_TRIP
+-
V_BAT
GND
CRYSTAL
OSCILLATOR
RTC
DIVIDER
POR
FREQUENCY
OUT
SWITCH
INTERNAL
SUPPLY
TEMPERATURE
SENSOR
FREQUENCY
CONTROL
CONTROL
LOGIC
REGISTERS
ALARM
SECONDS
MINUTES
HOURS
DAY OF WEEK
DATE
MONTH
YEAR
CONTROL
REGISTERS
USER
SRAM
IRQ/F_OUT
Ordering Information
PART NUMBER
(Note 3)
PART
MARKING
V_DD
RANGE
(V)
TEMP RANGE
(°C)
PACKAGE
(RoHS COMPLIANT)
PKG DWG #
ISL12020MIRZ (Note 2)
ISL 12020MIRZ
2.7 to 5.5 -40 to +85 20 Ld DFN
L20.5.5x4.0
ISL12020MIRZ-T (Notes 1, 2) ISL 12020MIRZ
2.7 to 5.5 -40 to +85 20 Ld DFN (Tape and Reel) L20.5.5x4.0
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 (lead in high melt
temp solder for internal connections) and exemption 5 (lead in piezoelectric elements). 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 ISL12020M. For more information on MSL please
see techbrief TB363.
2
FN6667.4
February 11, 2010