Datasheet > V30208TSS

V30208TSS

更新时间： 2024-11-19 22:35:11

品牌	Logo	应用领域
其他 - ETC		外围集成电路光电二极管
页数	文件大小	规格书
14页	473K
描述
Ultra Low Power 1-Bit 32 kHz RTC

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中文翻译

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数据手册

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V30208TSS 数据手册

EM MICROELECTRONIC-MARIN SA

V3020

Ultra Low Power 1-Bit 32 kHz RTC

Features

Typical Operating Configuration

n Supply current typically 390 nA at 3 V

n 50 ns access time with 50 pF load capacitance

n Fully operational from 1.2 V to 5.5 V

n No busy states or danger of a clock update while

accessing

CPU

n Serial communication on one line of a standard parallel

data bus or over a conventional 3 wire serial interface

n Interface compatible with both Intel and Motorola

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

day and week number in BCD format

Address

Decoder

n Leap year and week number correction

n Time set lock mode to prevent unauthorized setting of the

current time or date

n Oscillator stability 0.3 ppm / volt

n No external capacitor needed

I/O

V3020

RAM

n Frequency measurement and test modes

n Temperature range -40 to +85 ^oC

n On request extended temperature range, -40 to +125 ^oC

n Pin compatible with the V3021

n TSSO8 and SO8 packages

Description

The V3020 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 accessed by

chip select (CS) with read and write control timing provided by

either RD and WR pulse (Intel CPU) or DS with advanced R/W

(Motorola CPU). Data can also be transmitted over a

conventional 3 wire serial interface having CLK, data I/O and

strobe. The V3020 has no busy states and there is no danger of

a clock update while accessing. Supply current is typically 390

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

Fig. 1

Pin Assignment

S08

V_DD

functionality down to 1.2 V. The oscillator stability is typically 0.3

ppm/V.

V_SS

V3020

I/O

Applications

n Utility meters

n Battery operated and portable equipment

n Consumer electronics

n White/brown goods

n Pay phones

TSSO8

V_DD

I/O

n Cash registers

V3020

V_SS

n Personal computers

n Programmable controller systems

n Data loggers

Fig. 2

n Automotive systems

12 3 4 5 6 7...14

中文翻译

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与V30208TSS相关器件

型号	品牌	获取价格	描述	数据表
V3020SO8A	EMMICRO	获取价格	Ultra Low Power 1-Bit 32 kHz RTC
V3020SO8B	EMMICRO	获取价格	Ultra Low Power 1-Bit 32 kHz RTC
V3020TP8A	EMMICRO	获取价格	Ultra Low Power 1-Bit 32 kHz RTC
V3020TP8B	EMMICRO	获取价格	Ultra Low Power 1-Bit 32 kHz RTC
V3020XSO8A	EMMICRO	获取价格	Ultra Low Power 1-Bit 32 kHz RTC
V3020XSO8B	EMMICRO	获取价格	Ultra Low Power 1-Bit 32 kHz RTC
V3020XTP8A	EMMICRO	获取价格	Ultra Low Power 1-Bit 32 kHz RTC
V3020XTP8B	EMMICRO	获取价格	Ultra Low Power 1-Bit 32 kHz RTC
V3021	EMMICRO	获取价格	Ultra Low Power 1-Bit 32 kHz RTC
V30218P	EMMICRO	获取价格	Ultra Low Power 1-Bit 32 kHz RTC