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MCP7940N集成電路(IC)的實(shí)時(shí)時(shí)鐘規(guī)格書PDF中文資料

MCP7940N
廠商型號(hào)

MCP7940N

參數(shù)屬性

MCP7940N 封裝/外殼為8-SOIC(0.154",3.90mm 寬);包裝為管件;類別為集成電路(IC)的實(shí)時(shí)時(shí)鐘;產(chǎn)品描述:IC RTC CLK/CALENDAR I2C 8-SOIC

功能描述

Battery-Backed I2C Real-Time Clock/Calendar with SRAM
IC RTC CLK/CALENDAR I2C 8-SOIC

封裝外殼

8-SOIC(0.154",3.90mm 寬)

文件大小

727.62 Kbytes

頁面數(shù)量

58

生產(chǎn)廠商 Microchip Technology
企業(yè)簡(jiǎn)稱

MICROCHIP微芯科技

中文名稱

微芯科技股份有限公司官網(wǎng)

原廠標(biāo)識(shí)
數(shù)據(jù)手冊(cè)

原廠下載下載地址一下載地址二到原廠下載

更新時(shí)間

2025-7-24 23:00:00

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MCP7940N規(guī)格書詳情

MCP7940N屬于集成電路(IC)的實(shí)時(shí)時(shí)鐘。由微芯科技股份有限公司制造生產(chǎn)的MCP7940N實(shí)時(shí)時(shí)鐘實(shí)時(shí)時(shí)鐘 (RTC) 為幾乎所有需要保持精確時(shí)間的電子設(shè)備提供時(shí)間和/或日期信息。時(shí)鐘類型有二進(jìn)制計(jì)數(shù)器、時(shí)鐘/日歷/監(jiān)控器、歷時(shí)計(jì)時(shí)器、幻時(shí)鐘芯片、便攜式系統(tǒng)控制器、溫度記錄器、時(shí)間事件記錄器和計(jì)時(shí)器時(shí)鐘外設(shè)。其包含 2 B 至 2 MB 不等的存儲(chǔ)器,接口選項(xiàng)有 I2C、并行、串行、SPI、1 線式、2 線式、3 線式和 4 線式。

General Description

The MCP7940N Real-Time Clock/Calendar (RTCC)

tracks time using internal counters for hours, minutes,

seconds, days, months, years, and day of week.

Alarms can be configured on all counters up to and

including months. For usage and configuration, the

MCP7940N supports I2C communications up to

400 kHz.

The open-drain, multi-functional output can be

configured to assert on an alarm match, to output a

selectable frequency square wave, or as a general

purpose output.

The MCP7940N is designed to operate using a

32.768 kHz tuning fork crystal with external crystal

load capacitors. On-chip digital trimming can be used

to adjust for frequency variance caused by crystal

tolerance and temperature.

SRAM and timekeeping circuitry are powered from the

back-up supply when main power is lost, allowing the

device to maintain accurate time and the SRAM

contents. The times when the device switches over to

the back-up supply and when primary power returns

are both logged by the power-fail time-stamp.

Timekeeping Features

? Real-Time Clock/Calendar (RTCC):

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

Month, Year

- Leap year compensated to 2399

- 12/24 hour modes

? Oscillator for 32.768 kHz Crystals:

- Optimized for 6-9 pF crystals

? On-Chip Digital Trimming/Calibration:

- ±1 PPM resolution

- ±129 PPM range

? Dual Programmable Alarms

? Versatile Output Pin:

- Clock output with selectable frequency

- Alarm output

- General purpose output

? Power-Fail Time-Stamp:

- Time logged on switchover to and from Battery mode

Low-Power Features

? Wide Voltage Range:

- Operating voltage range of 1.8V to 5.5V

- Backup voltage range of 1.3V to 5.5V

? Low Typical Timekeeping Current:

- Operating from VCC: 1.2 μA at 3.3V

- Operating from battery backup: 925 nA at 3.0V

? Automatic Switchover to Battery Backup

產(chǎn)品屬性

更多
  • 產(chǎn)品編號(hào):

    MCP7940N-E/SN

  • 制造商:

    Microchip Technology

  • 類別:

    集成電路(IC) > 實(shí)時(shí)時(shí)鐘

  • 系列:

    Automotive, AEC-Q100

  • 包裝:

    管件

  • 類型:

    時(shí)鐘/日歷

  • 特性:

    警報(bào)器,閏年,方波輸出,SRAM

  • 存儲(chǔ)容量:

    64B

  • 時(shí)間格式:

    HH:MM:SS(12/24 小時(shí))

  • 日期格式:

    YY-MM-DD-dd

  • 接口:

    I2C,2 線串口

  • 電壓 - 供電:

    1.8V ~ 5.5V

  • 電壓 - 供電,電池:

    1.3V ~ 5.5V

  • 電流 - 計(jì)時(shí)(最大值):

    1.2μA @ 3.3V

  • 工作溫度:

    -40°C ~ 125°C

  • 安裝類型:

    表面貼裝型

  • 封裝/外殼:

    8-SOIC(0.154",3.90mm 寬)

  • 供應(yīng)商器件封裝:

    8-SOIC

  • 描述:

    IC RTC CLK/CALENDAR I2C 8-SOIC

供應(yīng)商 型號(hào) 品牌 批號(hào) 封裝 庫存 備注 價(jià)格
Microchip(微芯)
24+
標(biāo)準(zhǔn)封裝
8613
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MROCHI
24+
NA/
8850
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MICROCHI
25+
SOP8
996880
只做原裝,歡迎來電資詢
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Microchip
24+
8TSSOP
10000
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MICROCHIP/微芯
25+
25000
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MICROCHIP/微芯
20+
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67500
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Microchip(微芯)
23+
NA
20094
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MicrochipTechnology
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6000
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24+
MSOP-8
30000
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MICROCHI
24+
SOP8
32812
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