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ISL1219 반도체 회로 부품 판매점

Real Time Clock/Calendar



Intersil Corporation 로고
Intersil Corporation
ISL1219 데이터시트, 핀배열, 회로
www.DataSheet4U.com
ISL1219
®
Real Time Clock/Calendar with Event Detection
Data Sheet
August 14, 2006
FN6314.1
Low Power RTC with Battery Backed
SRAM and Event Detection
The ISL1219 device is a low power real time clock with
Event Detect and Time Stamp function, timing and crystal
compensation, clock/calendar, power fail indicator, periodic
or polled alarm, intelligent battery backup switching and 2
Bytes of battery-backed user SRAM.
The oscillator uses an external, low-cost 32.768kHz crystal.
The real time clock tracks time with separate registers for
hours, minutes, and seconds. The device has calendar
registers for date, month, year and day of the week. The
calendar is accurate through 2099, with automatic leap year
correction.
Ordering Information
PART
NUMBER
PART
(See Note) MARKING
VDD
RANGE
TEMP
RANGE
(°C)
PACKAGE
(Pb-Free)
ISL1219IUZ 1219Z
2.7V to 5.5V -40 to +85 10 Ld MSOP
ISL1219IUZ-T 1219Z
2.7V to 5.5V -40 to +85 10 Ld MSOP
Tape and Reel
NOTE: Intersil Pb-free 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.
Pinout
ISL1219
(10 LD MSOP)
TOP VIEW
X1 1
X2 2
VBAT 3
GND 4
EVIN 5
10 VDD
9 IRQ/FOUT
8 SCL
7 SDA
6 EVDET
Features
• Real Time Clock/Calendar
- Tracks Time in Hours, Minutes, and Seconds
- Day of the Week, Day, Month, and Year
• Security and Event Functions
- Tamper detection with Time Stamp in Normal and
Battery Backed modes
- Event Detection During Battery Backed or Normal
Modes
- Selectable Event Input Sampling Rates Allows Low
Power Operation
- Selectable Glitch Filter on Event Input Monitor
• 15 Selectable Frequency Outputs
• Single Alarm
- Settable to the Second, Minute, Hour, Day of the Week,
Day, or Month
- Single Event or Pulse Interrupt Mode
• Automatic Backup to Battery or Super Cap
• Power Failure Detection
• On-Chip Oscillator Compensation
• 2 Bytes Battery-Backed User SRAM
• I2C Interface
- 400kHz Data Transfer Rate
• 400nA Battery Supply Current
• Small Package
- 10 Ld MSOP
• Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• Utility Meters
• Set Top Box/Modem
• POS Equipment
• Network Routers, Hubs, Switches, Bridges
• Cellular Infrastructure Equipment
• Fixed Broadband Wireless Equipment
• Test Meters/Fixtures
• Vending Machine Management
• Security and Anti Tampering Applications
- Panel/Enclosure Status
- Warranty Reporting
- Time Stamping Applications
- Patrol/Security Check (Fire or Light Equipment)
- Automotive Applications
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.


ISL1219 데이터시트, 핀배열, 회로
www.DataSheet4U.com
Block Diagram
SDA
SCL
SDA
BUFFER
SCL
BUFFER
ISL1219
I2C
INTERFACE
CONTROL
LOGIC
X1
X2
VDD
VTRIP
VBAT
CRYSTAL
OSCILLATOR
RTC
DIVIDER
POR
FREQUENCY
OUT
SWITCH
INTERNAL
SUPPLY
ALARM
EVIN
GND
SECONDS
MINUTES
HOURS
DAY OF WEEK
DATE
MONTH
YEAR
CONTROL
REGISTERS
USER
SRAM
IRQ/
FOUT
EVDET
Pin Descriptions
PIN
NUMBER
1
2
3
4
5
SYMBOL
X1
X2
VBAT
GND
EVIN
DESCRIPTION
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.
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.
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.
Ground.
Event Input (EVIN). The EVIN is an input pin that is used to detect an externally monitored event. When a high signal
is present at the EVIN pin an “event” is detected.
6 EVDET Event Detect Output, active when EVIN is triggered. Open drain output.
7
SDA
Serial Data (SDA). SDA is a bidirectional 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.
8 SCL Serial Clock (SCL). The SCL input is used to clock all serial data into and out of the device.
9 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.
10
VDD
VDD. Power supply.
2 FN6314.1
August 14, 2006




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