MCP7940N集成電路(IC)的實(shí)時(shí)時(shí)鐘規(guī)格書PDF中文資料
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 |
封裝外殼 | 8-SOIC(0.154",3.90mm 寬) |
文件大小 |
727.62 Kbytes |
頁(yè)面數(shù)量 |
58 頁(yè) |
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) | |
更新時(shí)間 | 2025-1-21 20:00:00 |
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(kù)存 | 備注 | 價(jià)格 |
---|---|---|---|---|---|---|---|
MROCHI |
23+ |
NA/ |
8850 |
原裝現(xiàn)貨,當(dāng)天可交貨,原型號(hào)開票 |
詢價(jià) | ||
MICROCHIP |
24+ |
SOP8 |
65300 |
一級(jí)代理/放心采購(gòu) |
詢價(jià) | ||
Microchip |
23+ |
8TSSOP |
10000 |
原廠原裝正品現(xiàn)貨 |
詢價(jià) | ||
MICROCHIP/美國(guó)微芯 |
23+ |
MSOP-8 |
30000 |
原裝正品公司現(xiàn)貨,假一賠十! |
詢價(jià) | ||
MICROCHIP/美國(guó)微芯 |
2023+ |
MSOP-8 |
6000 |
全新原裝深圳倉(cāng)庫(kù)現(xiàn)貨有單必成 |
詢價(jià) | ||
MICROCHI |
SOP8 |
98900 |
原廠集團(tuán)化配單-有更多數(shù)量-免費(fèi)送樣-原包裝正品現(xiàn)貨- |
詢價(jià) | |||
Microchip(微芯) |
23+ |
標(biāo)準(zhǔn)封裝 |
8613 |
全新原裝正品/價(jià)格優(yōu)惠/質(zhì)量保障 |
詢價(jià) | ||
MicrochipTechnology |
24+ |
原廠原裝 |
6000 |
進(jìn)口原裝正品假一賠十,貨期7-10天 |
詢價(jià) | ||
MICROCHIP(美國(guó)微芯) |
1942+ |
MSOP-8 |
2532 |
向鴻只做原裝,倉(cāng)庫(kù)庫(kù)存優(yōu)勢(shì)數(shù)量請(qǐng)確認(rèn) |
詢價(jià) | ||
Microchip(微芯) |
23+ |
NA |
20094 |
正納10年以上分銷經(jīng)驗(yàn)原裝進(jìn)口正品做服務(wù)做口碑有支持 |
詢價(jià) |
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