MCP79520 datasheet(1/58 Pages) MICROCHIP

部件名	MCP79520

功能描述	Battery-Backed SPI Real-Time Clock/Calendar

PDF	58 Pages

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制造商	MICROCHIP [Microchip Technology]

网页	http://www.microchip.com

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 2012-2022 Microchip Technology Inc. and its subsidiaries

DS20002300D-page 1

MCP7951X/MCP7952X

Timekeeping Features

• Real-Time Clock/Calendar (RTCC):

- Hours, minutes, seconds, hundredth of

seconds, day of week, date, 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

- ±259 ppm range

• Dual Programmable Alarms

• Clock Output Function with Selectable Frequency

• Power-Fail Timestamp:

- Time logged on switchover to and from Battery

mode

Low-Power Features

• Wide Voltage Range:

- Operating voltage range of 1.8V to 3.6V

- Backup voltage range of 1.3V to 3.6V

• Low Typical Timekeeping Current:

- Operating from VCC: 1.2 µA at 3.0V

- Operating from VBAT: 1.0 µA at 3.0V

• Automatic Switchover to Battery Backup

User Memory

• 64-Byte Battery-Backed SRAM

• 1 Kbit or 2 Kbit EEPROM:

- Software write-protect

- Page write up to 8 bytes

- Endurance: one million erase/write cycles

• 128-Bit Protected EEPROM Area:

- Robust write unlock sequence

- EUI-48™ MAC address (MCP795X1)

- EUI-64™ MAC address (MCP795X2)

Operating Ranges

• SPI Serial Interface:

- SPI clock rate up to 5 MHz

• Temperature Range:

- Industrial (I): -40°C to +85°C

• Automotive AEC-Q100 Qualified

Packages

• 10-Lead MSOP

• 10-Lead TDFN

Package Types (not to scale)

Device Selection Table

Part Number

SRAM (Bytes)

EEPROM (Kbits)

Unique ID

MCP79510

64

1

Blank

MCP79520

64

2

Blank

MCP79511

64

1

EUI-48™

MCP79521

64

2

EUI-48™

MCP79512

64

1

EUI-64™

MCP79522

64

2

EUI-64™

Note:

MCP795XX is used in this document as a

generic part number for the MCP7951X

and MCP7952X devices.

SCK

MFP

VCC

X1

MSOP/TDFN

1

2

3

4

5

10

9

8

7

6

SO

CS

VSS

SI

VBAT

X2

Battery-Backed SPI Real-Time Clock/Calendar

类似零件编号 - MCP79520

制造商	部件名	数据表	功能描述
Micro Analog systems	MCP79520	946Kb / 50P	3V SPI Real-Time Clock Calendar with Battery Switchover

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类似说明 - MCP79520

制造商	部件名	数据表	功能描述
NXP Semiconductors	PCA2125	1Mb / 40P	SPI Real time clock / calendar Rev.00.11-30 January 2007
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Micro Analog systems	MCP795WXX	969Kb / 54P	SPI Real-Time Clock Calendar
Micro Analog systems	MCP7952X	946Kb / 50P	3V SPI Real-Time Clock Calendar with Battery Switchover
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