 English |
|
|
|
|
|
|
|
| ISL12020 Datasheet, PDF (2/25 Pages) Intersil Corporation – Low Power RTC with VDD Battery Backed SRAM and Embedded Temp Compensation ±5ppm with Auto Day Light Saving | |||
| |||
| ◁ |
ISL12020
Ordering Information
PART NUMBER
(Note)
Future Product
ISL12020IBZ*
PART MARKING
12020 IBZ
VDD RANGE
2.7V to 5.5V
TEMP RANGE
(°C)
-40 to +85
PACKAGE
(Pb-free)
8 Ld SOIC
PKG DWG #
M8.15
ISL12020CBZ*
12020 CBZ
2.7V to 5.5V
-20 to +70
8 Ld SOIC
M8.15
*Add â-Tâ suffix for tape and reel.
NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate
termination finish, which are 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.
Block Diagram
SDA
SCL
SDA
BUFFER
SCL
BUFFER
I2C
INTERFACE
CONTROL
LOGIC
REGISTERS
X1
X2
VDD
VTRIP
VBAT
GND
CRYSTAL
OSCILLATOR
RTC
DIVIDER
POR
FREQUENCY
OUT
SWITCH
INTERNAL
SUPPLY
TEMPERATURE
SENSOR
FREQUENCY
CONTROL
ALARM
SECONDS
MINUTES
HOURS
DAY OF WEEK
DATE
MONTH
YEAR
CONTROL
REGISTERS
USER
SRAM
IRQ/
FOUT
Pin Descriptions
PIN
NUMBER
SYMBOL
DESCRIPTION
1
X1
X1. 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.
2
X2
X2. 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.
3
VBAT VBAT. This input provides a backup supply voltage to the device. VBAT supplies power to the device in the event that
the VDD supply fails. This pin should be tied to ground if not used.
4
GND Ground.
5
SDA
Serial Data (SDA). 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 ORâed with other open drain or open collector outputs.
6
SCL
Serial Clock (SCL). The SCL input is used to clock all serial data into and out of the device.
7
IRQ/FOUT Interrupt Output IRQ, /Frequency Output FOUT. Multi-functional pin that can be used as interrupt or frequency
output pin. The function is set via the configuration register.
8
VDD
VDD. Power supply.
2
FN6450.0
March 29, 2007
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese