Datasheet > MCP7940MIMS

MCP7940MIMS

更新时间： 2024-11-22 00:52:31

品牌	Logo	应用领域
美国微芯 - MICROCHIP		静态存储器
页数	文件大小	规格书
38页	1006K
描述
Low-Cost I2Câ¢ Real-Time Clock/Calendar with SRAM

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MCP7940MIMS 数据手册

MCP7940M

Low-Cost I²C™ Real-Time Clock/Calendar with SRAM

Device Selection Table

Description:

SRAM

(Bytes)

The MCP7940M series of low-power Real-Time Clocks

(RTC) uses digital timing compensation for an accurate

clock/calendar and a programmable output control for

versatility. Using a low-cost 32.768 kHz crystal, it tracks

Part Number

MCP7940M

Features:

time

using

several

internal

registers.

For

communication, the MCP7940M uses the I²C™ bus.

• Real-Time Clock/Calendar (RTCC):

The clock/calendar automatically adjusts for months

with fewer than 31 days, including corrections for

leap years. The clock operates in either the 24-hour

or 12-hour format with an AM/PM indicator and

settable alarm(s) to the second, minute, hour, day of

the week, date or month. Using the programmable

CLKOUT, frequencies of 32.768, 8.192 and 4.096

kHz and 1 Hz can be generated from the external

crystal.

- Hours, Minutes, Seconds, Day of Week, Day,

Month and Year

- Dual alarm with single output

• On-Chip Digital Trimming/Calibration:

- Range -127 to +127 ppm

- Resolution 1 ppm

• Programmable Open-Drain Output Control:

- CLKOUT with 4 selectable frequencies

- Alarm output

The RTC series of devices are available in the standard

8-lead SOIC, TSSOP, MSOP, PDIP and 2x3 TDFN

packages.

• 64 Bytes SRAM

• Low-Power CMOS Technology:

- Dynamic Current: 400 A max write

• 100 kHz and 400 kHz Compatibility

• ESD Protection >4,000V

Package Types

MSOP

TDFN

VCC

• Packages include 8-Lead SOIC, TSSOP, 2x3

TDFN, MSOP and PDIP

VCC

MFP

SCL

SDA

MFP

SCL

• Pb-Free and RoHS Compliant

• Temperature Ranges:

VSS

SDA

- Industrial (I): -40°C to +85°C

SOIC, TSSOP

PDIP

VCC

MFP

SCL

SDA

SCL

SDA

VSS

 2012 Microchip Technology Inc.

Preliminary

DS22292A-page 1

12 3 4 5 6 7...38

中文翻译

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