Datasheet > MCP79411-I/MS

MCP79411-I/MS

更新时间： 2024-11-25 22:54:47

品牌	Logo	应用领域
美国微芯 - MICROCHIP		时钟光电二极管外围集成电路
页数	文件大小	规格书
66页	980K
描述
IC RTC CLK/CALENDAR I2C 8-MSOP

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技术参数
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MCP79411-I/MS 技术参数

是否Rohs认证：	符合	生命周期：	Active
零件包装代码：	MSOP	包装说明：	MSOP-8
针数：	8	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
Factory Lead Time：	17 weeks	风险等级：	0.75
其他特性：	ALSO OPERATES AT 100KHZ WITH 1.8 V NOMINAL	最大时钟频率：	0.4 MHz
外部数据总线宽度：		信息访问方法：	I2C
中断能力：	Y	JESD-30 代码：	S-PDSO-G8
JESD-609代码：	e3	长度：	3 mm
湿度敏感等级：	1	端子数量：	8
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	TSSOP
封装等效代码：	TSSOP8,.19	封装形状：	SQUARE
封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	峰值回流温度（摄氏度）：	260
电源：	2/5 V	认证状态：	Not Qualified
座面最大高度：	1.1 mm	子类别：	Timers or RTCs
最大供电电压：	5.5 V	最小供电电压：	2.5 V
标称供电电压：	5 V	表面贴装：	YES
技术：	CMOS	温度等级：	INDUSTRIAL
端子面层：	Matte Tin (Sn) - annealed	端子形式：	GULL WING
端子节距：	0.65 mm	端子位置：	DUAL
最短时间：	SECONDS	处于峰值回流温度下的最长时间：	40
易失性：	NO	宽度：	3 mm
uPs/uCs/外围集成电路类型：	TIMER, REAL TIME CLOCK

MCP79411-I/MS 数据手册

MCP79410/MCP79411/MCP79412

Battery-Backed I²C Real-Time Clock/Calendar with

SRAM, EEPROM and Protected EEPROM

Device Selection Table

Operating Ranges

• 2-Wire Serial Interface, I²C Compatible:

- I²C clock rate up to 400 kHz

Part Number

Protected EEPROM

MCP79410

Unprogrammed

EUI-48^™

• Temperature Range:

- Industrial (I): -40°C to +85°C

MCP79411

MCP79412

EUI-64^™

Packages

• 8-Lead SOIC, MSOP, TSSOP and 2x3 TDFN

Timekeeping Features

General Description

• 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

The MCP7941X 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 MCP7941X

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 MCP7941X 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

backup 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.

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 VBAT: 925 nA at 3.0V

• Automatic Switchover to Battery Backup

The MCP7941X features 1 Kbit of internal nonvolatile

EEPROM with software write-protectable regions.

There is an additional 64 bits of protected nonvolatile

memory which is only writable after an unlock sequence,

making it ideal for storing a unique ID or other critical

information. The MCP79411 and MCP79412 are

pre-programmed with EUI-48 and EUI-64 addresses,

respectively. Custom programming is also available.

User Memory

Package Types

• 64-Byte Battery-Backed SRAM

• 1 Kbit EEPROM Memory:

- Software write-protect

SOIC, TSSOP, MSOP

TDFN

VCC

MFP

SCL

- Page write up to eight bytes

- Endurance: 1M Erase/Write cycles

• 64-Bit Protected EEPROM Area:

- Robust write unlock sequence

- EUI-48^™MAC address (MCP79411)

- EUI-64^™MAC address (MCP79412)

X1 1

X2 2

VCC

MFP

SCL

SDA

VBAT

VSS

V_BAT

VSS

SDA

 2010-2016 Microchip Technology Inc.

DS20002266H-page 1

12 3 4 5 6 7...66

中文翻译

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MCP79411-I/MS 替代型号

型号	品牌	替代类型	描述	数据表
MCP79412-I/SN	MICROCHIP	完全替代	IC RTC CLK/CALENDAR I2C 8-SOIC
MCP79410-I/MS	MICROCHIP	完全替代	REAL TIME CLOCK, PDSO8, ROHS COMPLIANT, PLASTIC, MSOP-8
MCP79410-I/ST	MICROCHIP	完全替代	REAL TIME CLOCK, PDSO8, 4.40 MM BODY, ROHS COMPLAINT, PLASTIC, TSSOP-8

与MCP79411-I/MS相关器件

型号	品牌	获取价格	描述	数据表
MCP79411-I/SN	MICROCHIP	获取价格	REAL TIME CLOCK, PDSO8, 3.90 MM, ROHS COMPLIANT, PLASTIC, SOIC-8
MCP79411-I/ST	MICROCHIP	获取价格	IC RTC CLK/CALENDAR I2C 8-TSSOP
MCP79411T-I/MNY	MICROCHIP	获取价格	IC RTC CLK/CALENDAR I2C 8-TDFN
MCP79411T-I/MS	MICROCHIP	获取价格	IC RTC CLK/CALENDAR I2C 8-MSOP
MCP79411T-I/SN	MICROCHIP	获取价格	IC RTC CLK/CALENDAR I2C 8-SOIC
MCP79411T-I/ST	MICROCHIP	获取价格	IC RTC CLK/CALENDAR I2C 8-TSSOP
MCP79412	MICROCHIP	获取价格	I2C? Real-Time Clock/Calendar with EEPROM, SRAM, Unique ID and Battery Switchover
MCP79412-I/MS	MICROCHIP	获取价格	IC RTC CLK/CALENDAR I2C 8-MSOP
MCP79412-I/SN	MICROCHIP	获取价格	IC RTC CLK/CALENDAR I2C 8-SOIC
MCP79412-I/ST	MICROCHIP	获取价格	IC RTC CLK/CALENDAR I2C 8-TSSOP

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