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MCP7940N-ISLASHP中文資料微芯科技數據手冊PDF規(guī)格書

MCP7940N-ISLASHP
廠商型號

MCP7940N-ISLASHP

功能描述

Battery-Backed I2C Real-Time Clock/Calendar with SRAM

文件大小

727.62 Kbytes

頁面數量

58

生產廠商 Microchip Technology
企業(yè)簡稱

Microchip微芯科技

中文名稱

微芯科技股份有限公司官網

原廠標識
數據手冊

下載地址一下載地址二到原廠下載

更新時間

2025-5-27 23:01:00

人工找貨

MCP7940N-ISLASHP價格和庫存,歡迎聯系客服免費人工找貨

MCP7940N-ISLASHP規(guī)格書詳情

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

供應商 型號 品牌 批號 封裝 庫存 備注 價格
Microchip(微芯)
24+
NA/
8735
原廠直銷,現貨供應,賬期支持!
詢價
MICROCHIP(美國微芯)
24+
MSOP8
7350
現貨供應,當天可交貨!免費送樣,原廠技術支持!!!
詢價
Microchip
24+
8MSOP
10000
全新原廠原裝,進口正品現貨,正規(guī)渠道可含稅??!
詢價
Microchip(微芯)
23+
NA
20094
正納10年以上分銷經驗原裝進口正品做服務做口碑有支持
詢價
Microchip Technology
25+
8-TSSOP 8-MSOP(0.118 3.00mm
9350
獨立分銷商 公司只做原裝 誠心經營 免費試樣正品保證
詢價
MICROCHIP/微芯
23+
8-TSSOP
35200
只做原裝主打品牌QQ詢價有詢必回
詢價
MICROCHIP/微芯
25+
8-TSSOP
880000
明嘉萊只做原裝正品現貨
詢價
MICROCHIP/微芯
24+
N/A
5000
原裝分貨 強勢渠道
詢價
MICROCHIP/微芯
23+
8-TSSOP
13000
原廠授權一級代理,專業(yè)海外優(yōu)勢訂貨,價格優(yōu)勢、品種
詢價
Microchip
24+
8-TSSOP
8500
主營Microchip原裝正品,歡迎選購
詢價