isl12032 Intersil Corporation, isl12032 Datasheet

isl12032

Manufacturer Part Number

isl12032

Description

Low Power Rtc With Battery Backed Sram And 50/60 Cycle Ac Input And Xtal Back-up

Manufacturer

Intersil Corporation

Datasheet

1.ISL12032.pdf (26 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

isl12032IVZ-T

Manufacturer:

Intersil

Quantity:

11 856

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Low Power RTC with Battery Backed

SRAM and 50/60 Cycle AC Input and Xtal

Back-up

The ISL12032 device is a low power real time clock with

50/60 AC input for timing synchronization. It also has an

oscillator utilizing an external crystal for timing back-up,

clock/calendar registers, intelligent battery back-up

switching, battery voltage monitor, brownout indicator,

integrated trickle charger for super capacitor, single periodic

or polled alarms, POR supervisory function, and up to 4

Event Detect with time stamp. There are 128 bytes of

battery-backed user SRAM.

The oscillator uses a 50/60 cycle sine wave input, backed by

an external, low-cost, 32.768kHz crystal. The real time clock

tracks time with separate registers for hours, minutes, and

seconds. The calendar registers contain the date, month,

year, and day of the week. The calendar is accurate through

year 2100, with automatic leap year correction and auto

daylight savings correction.

Pinout

VBAT

EVIN

GND

(14 LD TSSOP)

TOP VIEW

ISL12032

Data Sheet

Real Time Clock with 50/60 Hz clock and Crystal Backup

IRQ

SCL

SDA

ACRDY

EVDET

OUT

1-888-INTERSIL or 1-888-468-3774

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Features

• 50/60 Cycle AC as a Primary Clock Input for RTC Timing

• Redundant Crystal Clock Input Selectable by User

• Real Time Clock/Calendar

• Auto Daylight Saving Time Correction

• Security and Event Functions

• Separate F

• Dual Alarms with Hardware and Register Indicators

• Automatic Backup to Battery or Super Capacitor

• Two Battery Status Monitors with Selectable Levels

• V

• Time Stamp during Power to Battery and Battery to Power

• Integrated Trickle Charger

• 128 Bytes Battery-Backed User SRAM

• I

• Pb-free (RoHS compliant)

Applications

• Utility Meters

• Control Applications

• Security Related Applications

• Vending Machines

• White Goods

• Consumer Electronics

December 14, 2007

- Dynamically Switch from AC Clock Input to Crystal in

- Tracks Time in Hours, Minutes, Seconds and tenths of a

- Day of the Week, Day, Month, and Year

- Programmable Forward and Backward Dates

- Event Detection with Time Stamp

- Stores First and Last Three Event Time Stamps

- 7 Selectable Frequency Outputs

- Hardware Single Event or Pulse Interrupt Mode

- VBAT Operation Down to 1.8V

- 1.0µA Battery Supply Current

- Seven Selectable Voltages for Each Level

- 1st Level, Trip Points from 4.675V to 2.125V

- 2nd Level, Trip Points from 4.125V to 1.875V

- Six Selectable Trip Levels, from 4.675V to 2.295V

Switchover

- Four Selectable Charging Rates

- 400kHz Data Transfer Rate

C Interface

Case of Power Failure

second

Power Brownout Monitor

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

Intersil (and design) is a registered trademark of Intersil Americas Inc.

OUT

ISL12032

FN6618.0

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