Datasheet > V3021SO8A

V3021SO8A

更新时间： 2024-11-20 02:55:07

品牌	Logo	应用领域
EMMICRO		/
页数	文件大小	规格书
15页	681K
描述
Ultra Low Power 1-Bit 32 kHz RTC

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

V3021SO8A 数据手册

EM MICROELECTRONIC - MARIN SA

V3021

Ultra Low Power 1-Bit 32 kHz RTC

Description

Features

The V3021 is a low power CMOS real time clock. Data is

transmitted serially as 4 address bits and 8 data bits, over

one line of a standard parallel data bus. The device is

Supply current typically 800 nA at 3V

50 ns access time with 50 pF load capacitance

Fully operational from 2.0V to 5.5V

accessed by chip select ( CS ) with read and write control

timing provided by either RD and WR pulse (Intel CPU)

No busy states or danger of a clock update while

accessing

or DS with advanced R/

W (Motorola CPU). Data can

Serial communication on one line of a standard

parallel data bus or over a conventional 3 wire serial

interface

also be transmitted over a conventional 3 wire serial

interface having CLK, data I/O and strobe. The V3021

has no busy states and there is no danger of a clock

Interface compatible with both Intel and Motorola

update while accessing.

Supply current is typically

Seconds, minutes, hours, day of month, month, year,

week day and week number in BCD format

800 nA at V_DD= 3.0V. Battery operation is supported by

complete functionality down to 2.0V. The oscillator is

typically 0.3 ppm/V.

Leap year and week number correction

Time set lock mode to prevent unauthorized setting of

the current time or date

Applications

Oscillator stability 0.3 ppm / volt

No external capacitor needed

Utility meters

Battery operated and portable equipment

Consumer electronics

White/brown goods

Pay phones

Frequency measurement and test modes

Temperature range: -40°C to +85°C

On request extended temperature range, -40°C to

+125°C

Cash registers

Packages DIP8 and SO8

Personal computers

Programmable controller systems

Data loggers

Automotive systems

Typical Operating Configuration

Pin Assignment

CPU

SO8

V_DD

I/O

Address

Decoder

V3021

V_SS

V3021

I/O

Fig. 2

RAM

Fig. 1

www.emmicroelectronic.com

12 3 4 5 6 7...15

中文翻译

下载PDF

与V3021SO8A相关器件

型号	品牌	获取价格	描述	数据表
V3021SO8B	EMMICRO	获取价格	Ultra Low Power 1-Bit 32 kHz RTC
V3021XDL8A	EMMICRO	获取价格	Ultra Low Power 1-Bit 32 kHz RTC
V3021XSO8A	EMMICRO	获取价格	Ultra Low Power 1-Bit 32 kHz RTC
V3021XSO8B	EMMICRO	获取价格	Ultra Low Power 1-Bit 32 kHz RTC
V3022	EMMICRO	获取价格	Very Low Power 8-Bit 32 kHz RTC Module with Digital Trimming and High Level Integration
V3022SO28A	EMMICRO	获取价格	Very Low Power 8-Bit 32 kHz RTC Module with Digital Trimming and High Level Integration
V3022SO28B	EMMICRO	获取价格	Very Low Power 8-Bit 32 kHz RTC Module with Digital Trimming and High Level Integration
V3023	EMMICRO	获取价格	Very Low Power 8-Bit 32 kHz RTC Module with Digital Trimming, User RAM and High Level Inte
V3023SO28A	EMMICRO	获取价格	Very Low Power 8-Bit 32 kHz RTC Module with Digital Trimming, User RAM and High Level Inte
V3023SO28B	EMMICRO	获取价格	Very Low Power 8-Bit 32 kHz RTC Module with Digital Trimming, User RAM and High Level Inte

与V3021SO8A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

25
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

17
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

49
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

46

产品中心

服务支持

精选活动

关于我们

帮助中心

V3021SO8A

V3021SO8A 数据手册

与V3021SO8A相关器件

与V3021SO8A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

V3021SO8A

V3021SO8A 数据手册

与V3021SO8A相关器件

与V3021SO8A相关文章

您还可以找

您在本页遇到什么问题？