CBC-EVAL-12-34813 datasheet(1/9 Pages) CYMBET

Numer części	CBC-EVAL-12-34813

Szczegółowy opis	SPI Real-Time Clock/Calendar with Integrated Backup Power

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Producent	CYMBET [Cymbet Corporation]

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DS-72-38 V.01

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SPI Real-Time Clock/Calendar with Integrated Backup Power

CBC34813 EnerChip™ RTC

Features

• Ultra low power Real Time Clock with Integrated

rechargeable EnerChip™ solid state battery,

power-fail detect and automatic switchover,

providing greater than 6 days of RTC backup

• 5mm x 5mm x 1.4mm QFN package is the

smallest commercially available RTC having

integrated backup power

• Temperature-compensated charge control

• Integrated EnerChip™ recharged at VDD > 2.5V

• SMT assembly - lead-free reflow solder tolerant

• Counters for hundredths, seconds, minutes,

hours, date, month, year, century, and weekday

based on a 32.768 kHz oscillator

• Automatic leap year calculation

• Alarm capability on all counters

• 2 general purpose outputs

• 64 bytes of RAM

• Advanced crystal calibration to ± 2 ppm

• Advanced RC calibration to ± 16 ppm

• Automatic calibration of RC oscillator to crystal

oscillator

• SPI-bus (up to 400kHz)

• Eco-friendly, RoHS compliant - tested

General Description

The EnerChip RTC CBC34813-M5C combines a

Real-Time Clock (RTC) and calendar optimized

for low power applications with an integrated

rechargeable solid state backup battery and all power

management functions. The EnerChip RTC ensures

a seamless transition from main power to backup

power in the event of power loss. The integrated

power management circuit ensures thousands of

charge-discharge cycles from the integrated EnerChip

and manages battery charging, discharge cutoff,

power switchover, and temperature compensation

to maximize the service life of the device. The

CBC34813 provides greater than 6 days of backup

time in the event main power is interrupted. The

integrated EnerChip recharges quickly, has extremely

low self-discharge, is non-flammable, and RoHS-

compliant. The EnerChip is charged automatically

anytime VDD is above 2.5V.

Data is transferred serially via an SPI-bus. Alarm

and timer functions provide the option to generate a

wake-up signal on an interrupt pin.

5mm x 5mm x 1.4mm 16-pin QFN Package

Applications

• Power bridging

to provide uninterruptible RTC

function during exchange of main batteries.

• Consumer appliances

that have real-time

clocks; provides switchover power from main

supply to backup battery.

• Ultra Low Power Timers

using only 35nA can be

implemented with the CBC34813

• Wireless sensors and RFID tags

and other

powered, low duty cycle applications.

• Business and industrial systems

such as:

network routers, point-of-sale terminals, single-

board computers, test equipment, multi-function

printers, industrial controllers, and utility meters.

• Time keeping application

• Battery powered devices

• Metering

• High duration timers

• Daily alarms

• Low standby power applications

Preliminary

Figure 1: CBC34813 Pin-out Diagram

Podobny numer części - CBC-EVAL-12-34813

Producent	Numer części	Arkusz danych	Szczegółowy opis
Cymbet Corporation	CBC-EVAL-12-34813	280Kb / 7P	Using CBC348xx EnerChip RTC in High Accuracy Applications
	CBC-EVAL-12-34813	326Kb / 5P	Extend Battery Life by Reducing System Power using the EnerChip RTC
	CBC-EVAL-12-34813	4Mb / 14P	EnerChip??RTC Evaluation Kit

More results

Podobny opis - CBC-EVAL-12-34813

Producent	Numer części	Arkusz danych	Szczegółowy opis
Cymbet Corporation	DS-72-31	1Mb / 14P	SPI Real-Time Clock/Calendar with Integrated Backup Power
	CBC34123	480Kb / 9P	SPI Real-Time Clock/Calendar with Integrated Backup Power
	DS-72-38	1Mb / 18P	SPI Real-Time Clock/Calendar with Integrated Backup Power
	DS-72-34	1Mb / 18P	I2C Real-Time Clock/Calendar with Integrated Backup Power
	CBC34803	511Kb / 9P	I2C Real-Time Clock/Calendar with Integrated Backup Power
NXP Semiconductors	PCA2125	1Mb / 40P	SPI Real time clock / calendar Rev.00.11-30 January 2007
	PCF2123	239Kb / 54P	SPI Real time clock/calendar Rev. 01-19 November 2008
	PCA2125	189Kb / 36P	SPI Real-time clock/calendar Rev. 01-28 July 2008
	PCF2123	1Mb / 55P	SPI Real time clock/calendar Rev. 02-4 December 2009
Micro Analog systems	MCP795WXX	969Kb / 54P	SPI Real-Time Clock Calendar

More results

CBC-EVAL-12-34813 Arkusz danych(PDF) 1 Page - Cymbet Corporation

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