Datasheet > CBC34123-M5C

CBC34123-M5C

更新时间： 2024-09-16 12:34:35

品牌	Logo	应用领域
CYMBET		时钟
页数	文件大小	规格书
9页	480K
描述
SPI Real-Time Clock/Calendar with Integrated Backup Power

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中文翻译

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数据手册

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CBC34123-M5C 数据手册

Preliminary

CBC34123 EnerChip™ RTC

SPI Real-Time Clock/Calendar with Integrated Backup Power

Features

•

Integrated rechargeable solid state battery with

power-fail detect and automatic switchover, pro-

viding greater than 30 hours of RTC backup

Smallest commercially available RTC with inte-

grated backup power in compact 5mm x 5mm

1.4mm QFN package

•

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

General Description

•

Temperature compensated charge control

Integrated EnerChip™ recharged at VDD > 2.5V

SMT assembly - lead-free reﬂow solder tolerant

Real time clock provides year, month, day, week-

day, hours, minutes, and seconds based on a

32.768 kHz quartz crystal

Resolution: seconds to years

Watchdog functionality

Freely programmable timer and alarm with inter-

rupt capability

3-line SPI-bus with separate, but combinable

data input and output

Integrated oscillator load capacitors for C_L= 7 pF

Internal Power-On Reset (POR)

Open-drain interrupt and clock output pins

Programmable offset register for frequency

adjustment

The EnerChip RTC CBC34123-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

CBC34123 provides greater than 30 hours of backup

time in the event main power is interrupted. Typical

blackout times are less than 4 hours. The EnerChip

has extremely low self-discharge, recharges quickly, is

non-ﬂammable, and RoHS-compliant. The EnerChip is

charged automatically anytime VDD is above 2.5V.

•

Eco-friendly, RoHS compliant - tested

Data is transferred serially via a Serial Peripheral

Interface (SPI-bus) with a maximum data rate of 6.25

Mbit/s. Alarm and timer functions provide the option

to generate a wake-up signal on an interrupt pin. An

offset register allows ﬁne tuning of the clock.

Applications

•ꢀ Wireless sensors and RFID tags and other

powered, low duty cycle 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.

•ꢀ 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

Figure 1: CBC34123 Pin-out Diagram

DS-72-31 V.08

Page 1 of 9

12 3 4 5 6 7...9

中文翻译

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与CBC34123-M5C相关器件

型号	品牌	获取价格	描述	数据表
CBC34123-M5C-TR1	CYMBET	获取价格	SPI Real-Time Clock/Calendar with Integrated Backup Power
CBC34123-M5C-TR5	CYMBET	获取价格	SPI Real-Time Clock/Calendar with Integrated Backup Power
CBC34803	CYMBET	获取价格	I2C Real-Time Clock/Calendar with Integrated Backup Power
CBC34803-M5C	CYMBET	获取价格	I2C Real-Time Clock/Calendar with Integrated Backup Power
CBC34803-M5C-TR1	CYMBET	获取价格	I2C Real-Time Clock/Calendar with Integrated Backup Power
CBC34803-M5C-TR5	CYMBET	获取价格	I2C Real-Time Clock/Calendar with Integrated Backup Power
CBC34813	CYMBET	获取价格	SPI Real-Time Clock/Calendar with Integrated Backup Power
CBC34813-M5C	CYMBET	获取价格	SPI Real-Time Clock/Calendar with Integrated Backup Power
CBC34813-M5C-TR1	CYMBET	获取价格	SPI Real-Time Clock/Calendar with Integrated Backup Power
CBC34813-M5C-TR5	CYMBET	获取价格	SPI Real-Time Clock/Calendar with Integrated Backup Power

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