Datasheet > EM3027IDXTP8B

EM3027IDXTP8B

更新时间： 2024-11-19 06:56:47

品牌	Logo	应用领域
EMMICRO		晶体电池温度补偿时钟
页数	文件大小	规格书
28页	583K
描述
Real Time Clock with I2C or SPI, Crystal Temperature Compensation, Battery Switchover and Trickle Charger

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

EM3027IDXTP8B 数据手册

EM MICROELECTRONIC - MARIN SA

EM3027

Real Time Clock with I2C or SPI, Crystal Temperature

Compensation, Battery Switchover and Trickle Charger

Description

Features

The EM3027 is an Ultra Low Power CMOS real-time

clock IC with two serial interface modes: I2C or SPI. The

interface mode is selected by the chip version (see §12).

Fully operational from 2.1 to 5.5V

Supply current typically 600 nA at 1.4V

Thermal compensated crystal frequency

Oscillator stability 0.5 ppm / Volt

The basic clock is obtained from the 32.768 kHz crystal

oscillator. A thermal compensation of the frequency is

based on the temperature measurement and calculation

of the correction value. The temperature can be

measured internally or be input by an external application

to the register.

Counter for seconds, minutes, hours, day of week,

date months, years in BCD format and alarm

Leap year compensation

16-bits timer with 2 working modes

Two low voltage detection levels V_Low1, V_Low2

Automatic supply switchover

Serial communication via I2C (I²C-bus specification

Rev. 03 compatible – see §10.2) or SPI (3-line SPI-

bus with separate combinable data input and output)

The chip provides clock and calendar information in BCD

format with alarm possibility. The actual contents are

latched at the beginning of a read transmission and

afterwards data are read without clock counter data

corruption.

An integrated 16-bit timer can run in Zero-Stop or Auto-

Reload mode.

Thermometer readable by the host

Trickle charger to maintain battery charge

Integrated oscillator capacitors

An interrupt request signal can be provided through

INT/IRQ pin generated from alarm, timer, voltage

detector and Self-Recovery system.

Two EEPROM and 8 RAM data bytes for application

Digital Self-Recovery system

An integrated trickle charger allows recharging backup

supply V_Backfrom the main supply voltage V_CCthrough

internal resistor(s). The internal device supply will

switchover to V_CCwhen V_CCis higher than V_Backand vice

versa.

No busy states and no risk of corrupted data while

accessing

One hour periodical configuration registers refresh

Support for standard UL1642 for Lithium batteries

Standard temperature range: -40°C to +85°C

Extended temperature range: -40°C to +125°C

Packages: TSSOP8, TSSOP14, SO8.

The device operates over a wide 1.4 to 5.5V supply

range and requires only 900 nA at 5V. It can detect

internally two supply voltage levels.

Applications

Utility meters

Block Diagram

Battery operated and portable equipment

Consumer electronics

White/brown goods

Pay phones

EM3027

Temperature

Sensor

Cash registers

Personal computers

Programmable controller systems

Data loggers

Watch & Alarm

Oscillator

- Seconds

- Minutes

- Hours

- Days

V_CC

Power

Management

V_REG

V_Back

- Weekdays

- Months

- Years

SCL/SCK

SDA/SO

I2C

or SPI

Timer

CLKOUT

Output

Control

INT or IRQ

CLKOE

EEPROM

12/09 – rev D

www.emmicroelectronic.com

12 3 4 5 6 7...28

中文翻译

下载PDF

与EM3027IDXTP8B相关器件

型号	品牌	获取价格	描述	数据表
EM3027IDXWS8	EMMICRO	获取价格	Real Time Clock with I2C or SPI, Crystal Temperature Compensation, Battery Switchover and
EM3027SDSSO8B	EMMICRO	获取价格	Real Time Clock with I2C or SPI, Crystal Temperature Compensation, Battery Switchover and
EM3027SDSTP14	EMMICRO	获取价格	Real Time Clock with I2C or SPI, Crystal Temperature Compensation, Battery Switchover and
EM3027SDSTP14A	EMMICRO	获取价格	Real Time Clock with I2C or SPI, Crystal Temperature Compensation, Battery Switchover and
EM3027SDSTP14B	EMMICRO	获取价格	Real Time Clock with I2C or SPI, Crystal Temperature Compensation, Battery Switchover and
EM3027SDSWS8	EMMICRO	获取价格	Real Time Clock with I2C or SPI, Crystal Temperature Compensation, Battery Switchover and
EM3027SDXSO8B	EMMICRO	获取价格	Real Time Clock with I2C or SPI, Crystal Temperature Compensation, Battery Switchover and
EM3027SDXTP14	EMMICRO	获取价格	Real Time Clock with I2C or SPI, Crystal Temperature Compensation, Battery Switchover and
EM3027SDXTP14B	EMMICRO	获取价格	Real Time Clock with I2C or SPI, Crystal Temperature Compensation, Battery Switchover and
EM3027SDXWS8	EMMICRO	获取价格	Real Time Clock with I2C or SPI, Crystal Temperature Compensation, Battery Switchover and

与EM3027IDXTP8B相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

23
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

15
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

45
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

45

产品中心

服务支持

精选活动

关于我们

帮助中心

EM3027IDXTP8B

EM3027IDXTP8B 数据手册

与EM3027IDXTP8B相关器件

与EM3027IDXTP8B相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

EM3027IDXTP8B

EM3027IDXTP8B 数据手册

与EM3027IDXTP8B相关器件

与EM3027IDXTP8B相关文章

您还可以找

您在本页遇到什么问题？