Datasheet > MCP79521

MCP79521

更新时间： 2024-11-23 11:58:19

品牌	Logo	应用领域
MAS		电池时钟
页数	文件大小	规格书
50页	946K
描述
3V SPI Real-Time Clock Calendar with Battery Switchover

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中文翻译

获取价格

数据手册

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MCP79521 数据手册

MCP7952X/MCP7951X

3V SPI Real-Time Clock Calendar with Battery Switchover

Device Selection Table

User Memory:

SRAM

(Bytes)

EEPROM

(Kbits)

• 64-Byte Battery-Backed SRAM

Part Number

Unique ID

• 2 Kbit and 1 Kbit EEPROM Memory:

MCP79520

MCP79510

MCP79521

MCP79511

MCP79522

MCP79512

Blank

- Software block write-protect (¼, ½, or entire

array)

™

- Write Page mode (up to 8 bytes)

- Endurance: 1M erase/write cycles

EUI-48

™

EUI-48

• 128-Bit Unique ID in Protected Area of EEPROM:

- Available blank or preprogrammed

- EUI-48™ or EUI-64™ MAC address

- Unlock sequence for user programming

™

EUI-64

™

EUI-64

Timekeeping Features:

• Real-Time Clock/Calendar:

Operating Ranges:

- Hours, Minutes, Seconds, Hundredth of

Seconds, Day of Week, Month, Year, Leap

Year

• SPI Clock Speed up to 5 MHz

• Operating Temperature Ranges:

- Industrial (I Temp): -40°C to +85°C.

• Packages include 10-Lead MSOP and TDFN

• Crystal Oscillator requires External 32,768 kHz

Tuning Fork Crystal and Load Capacitors.

• Clock Out Function:

- 1Hz, 4.096 kHz, 8.192 kHz, 32.768 kHz

• 2 Programmable Alarms

Package Types (not to scale)

MSOP/TDFN

• Programmable open drain output – Alarm or

Interrupt

Vcc

• On-Chip Digital Trimming/Calibration:

- +/- 255 PPM range in 1 PPM steps

MFP

SCK

BAT

• Power-Fail Time-Stamp @ Battery Switchover:

- Logs time when VCC fails and VCC is restored

VSS

Low-Power Features:

• Wide Operating Voltage:

- VCC: 1.8V to 3.6V

Note:

MCP795XX is used in this document as a

generic part number for the MCP7951X,

MCP7952X devices.

- VBAT: 1.3V to 3.6V

• Low Operating Current:

- VCC Standby Current < 1uA @ 3V

- VBAT Timekeeping Current: <700nA @ 1.8V

• Automatic Battery Switchover from VCC to VBAT:

- Backup power for timekeeping and SRAM

retention

 2012 Microchip Technology Inc.

Preliminary

DS22300A-page 1

12 3 4 5 6 7...50

中文翻译

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与MCP79521相关器件

型号	品牌	获取价格	描述	数据表
MCP79522	MAS	获取价格	3V SPI Real-Time Clock Calendar with Battery Switchover
MCP7952X	MAS	获取价格	3V SPI Real-Time Clock Calendar with Battery Switchover
MCP795B10	MAS	获取价格	SPI Real-Time Clock Calendar
MCP795B11	MAS	获取价格	SPI Real-Time Clock Calendar
MCP795B12	MAS	获取价格	SPI Real-Time Clock Calendar
MCP795B20	MAS	获取价格	SPI Real-Time Clock Calendar
MCP795B21	MAS	获取价格	SPI Real-Time Clock Calendar
MCP795B22	MAS	获取价格	SPI Real-Time Clock Calendar
MCP795BXX	MAS	获取价格	SPI Real-Time Clock Calendar
MCP795W10	MAS	获取价格	SPI Real-Time Clock Calendar