Datasheet > V3023SO28B

V3023SO28B

更新时间： 2024-01-07 01:48:58

品牌	Logo	应用领域
EMMICRO		/
页数	文件大小	规格书
15页	608K
描述
Very Low Power 8-Bit 32 kHz RTC Module with Digital Trimming, User RAM and High Level Integration

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V3023SO28B 技术参数

生命周期：	Contact Manufacturer	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.78
Base Number Matches：	1

V3023SO28B 数据手册

EM MICROELECTRONIC - MARIN SA

V3023

Very Low Power 8-Bit 32 kHz RTC Module with Digital

Trimming, User RAM and High Level Integration

Description

Features

ꢀ Built-in crystal with digital trimming and

The V3023 is a low power CMOS real time clock with a

built in crystal. Standby current is typically 1.2 µA and the

access time is 50 ns. The interface is 8 bits with

temperature compensation facilities

ꢀ Can be synchronised to 50 Hz or nearest s/min

ꢀ 50 ns access time with 50 pF load capacitance

ꢀ Standby on power down typically 1.2 µA

multiplexed address and data bus.

Multiplexing of

address and data is handled by the input line A /D. There

are no busy flags in the V3023, internal time update

cycles are invisible to the user's software. Time data can

be read from the V3023 in 12 or 24 hour data formats. An

external signal puts the V3023 in standby mode. Even in

ꢀ Universal interface compatible with both Intel and

Motorola

ꢀ Simple 8 bit interface with no delays or busy flags

ꢀ 16 bytes of user RAM

standby, the V3023 pulls the IRQ pin active low on an

internal alarm interrupt. Calendar functions include leap

year correction and week number calculation. Time

precision can be achieved by digital trimming. The V3023

can be synchronized to an external 50 Hz signal or to the

nearest second or minute.

ꢀ Power fail input disables during power up / down of

reset

ꢀ Bus can be in tri-state in power fail mode

ꢀ Wide voltage range: 2.0 V to 5.5 V

ꢀ 12 or 24 hour data formats

Applications

ꢀ Time to 1/100 of a second

ꢀ Industrial controllers

ꢀ Leap year correction and week number calculation

ꢀ Alarm and timer interrupts

ꢀ Alarm systems with periodic wake up

ꢀ PABX and telephone systems

ꢀ Point of sale terminals

ꢀ Automotive electronics

ꢀ Programmable interrupts: 10 ms, 100 ms, s or min

ꢀ Sleep mode capability

ꢀ Alarm programmable up to one month

ꢀ Timer measures elapsed time up to 24 hours

ꢀ Temperature range: -40°C to +85°C

ꢀ Package SO28

Typical Operating Configuration

Pin Assignment

SO28

SYNC

CPU

AD0

AD1

AD7

AD6

AD5

Address

Decoder

AD2

AD3

A/D

IRQ

V_SS

AD4

V3023

IRQ

V3023

V_DD

A/D

V_SS

AD0 to AD7

V_SS

RAM

Fig. 2

Fig. 1

www.emmicroelectronic.com

12 3 4 5 6 7...15

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