ISL12024IRTCZ【PDF 1/24 页】IC RTC/CALENDER 64BIT 8-TDFN

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ISL12024IRTC

Real-Time Clock/Calendar with Embedded

Unique ID

The ISL12024IRTCZ device is a micro-power real-time clock

with embedded 64-bit unique ID, timing and crystal

compensation, clock/calender, power-fail indicator, two

periodic or polled alarms, intelligent battery backup

switching, and integrated 512x8-bit EEPROM configured in

16 Bytes per page.

The device contains a 64-bit unique ID number for security

and product identification applications. It is housed in a tiny

3mmx3mm TDFN package for small handheld applications.

The clock output defaults to 32.768kHz on initial power-up

for low power microcontroller clocking applications. The low

800nA battery supply current extends backup battery life.

Pinout

ISL12024IRTCZ

(8 LD TDFN)

TOP VIEW

Features

Real-Time Clock/Calendar

- Tracks Time in Hours, Minutes, and Seconds

- Day of the Week, Day, Month and Year

- 3 Selectable Frequency Outputs

64-Bit Unique ID

Two Non-Volatile Alarms

- Settable on the Second, Minute, Hour, Day of the Week,

Day or Month

- Repeat Mode (Periodic Interrupts)

Automatic Backup to Battery or Super Cap

Default 32.768kHz Output at IRQ/FOUT

(FO1 = 0, FO0 = 1)

On-Chip Oscillator Compensation

- Internal Feedback Resistor and Compensation

Capacitors

- 64 Position Digitally Controlled Trim Capacitor

- 6 Digital Frequency Adjustment Settings to ±30ppm

512x8-Bits of EEPROM

- 16-Bytes Page Write Mode (32 total pages)

- 8 Modes of BlockLock Protection

- Single Byte Write Capability

High Reliability

- Data Retention: 50 years

- Endurance: 2,000,000 Cycles Per Byte

I2C Interface

- 400kHz Data Transfer Rate

800nA Battery Supply Current

Available in 8 Ld TDFN package

Pb-Free (RoHS Compliant)

Applications

Utility Meters

Audio Video Equipment

Modems

Network Routers, Hubs, Switches, Bridges

Cellular Infrastructure Equipment

Fixed Broadband Wireless Equipment

Pagers/PDA

POS Equipment

Test Meters/Fixtures

Office Automation (Copiers, Fax)

Computer Products

Security Related Application

Ordering Information

PART NUMBER

(Note)

PART

MARKING

VDD

RANGE

TEMP

RANGE

(°C)

PACKAGE

(Pb-Free)

PKG.

DWG. #

ISL12024IRTCZ* 024C

2.7V to

5.5V

-40 to +85 8 Ld TDFN L8.3x3I

*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.

IRQ/FOUT

GND

VDD

VBAT

SCL

SDA

Data Sheet

FN6749.1

December 15, 2011

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.

All other trademarks mentioned are the property of their respective owners.

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