MCP795W10-I/SL Microchip Technology, MCP795W10-I/SL Datasheet

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MCP795W10-I/SL

Manufacturer Part Number

MCP795W10-I/SL

Description

SPI GPP RTCC, 1Kb EE, 64B SRAM, WD Timer, Event Detect, ID 14 SOIC .150in TUBE

Manufacturer

Microchip Technology

Datasheets

1.MCP795W10-ISL.pdf (54 pages)

2.MCP795W10-ISL.pdf (54 pages)

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Device Selection Table

Timekeeping Features:

• Real-Time Clock/Calendar:

• Crystal Oscillator requires External 32,768 kHz

• Clock Out Function:

• 32 kHz Boot-up Clock at Power-up (MCP795BXX)

• 2 Programmable Alarms – Supports IRQ or WDO

• Programmable open drain output – Alarm or

• On-Chip Digital Trimming/Calibration:

• Power-Fail Time-Stamp @ Battery Switchover:

Low-Power Features:

• Wide Operating Voltage:

• Low Operating Current:

• Automatic Battery Switchover from V

 2011-2012 Microchip Technology Inc.

MCP795W20

MCP795W10

MCP795W21

MCP795W11

MCP795W22

MCP795W12

MCP795B20

MCP795B10

MCP795B21

MCP795B11

MCP795B22

MCP795B12

Part Number

Note:

- Hours, Minutes, Seconds, Hundredth of

Tuning Fork Crystal and Load Capacitors.

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

Interrupt

- +/- 255 PPM range in 1 PPM steps

- Logs time when V

- V

- V

- V

- V

- Backup power for timekeeping and SRAM

Seconds, Day of Week, Month, Year, Leap

Year

retention

CC

BAT

CC

BAT

: 1.8V to 5.5V

Standby Current < 1uA @ 3V

: 1.3V to 5.5V

Timekeeping Current: <700nA @ 1.8V

Watchdog Timer and Event Detects in all devices.

Boot-up

32 kHz

Yes

Yes

Yes

Yes

Yes

Yes

No

No

No

No

No

No

CC

Enhanced Features and Battery Switchover

fails and V

(Bytes)

SRAM

64

64

64

64

64

64

64

64

64

64

64

64

SPI Real-Time Clock Calendar with

EEPROM

CC

(Kbits)

CC

2

1

2

1

2

1

2

1

2

1

2

1

is restored

to V

MCP795WXX/MCP795BXX

Blank

Blank

EUI-48

EUI-48

EUI-64

EUI-64

Blank

Blank

EUI-48

EUI-48

EUI-64

EUI-64

Unique

BAT

ID

:

Preliminary

™

™

™

™

™

™

™

™

User Memory:

• 64-Byte Battery-Backed SRAM

• 2 Kbit and 1 Kbit EEPROM Memory:

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

Enhanced Features:

• SPI Clock Speed up to 10 MHz

• Programmable Watchdog Timer:

• Dual Configurable Event Detect Inputs:

• Operating Temperature Ranges:

• Packages include 14-Lead SOIC and TSSOP

Package Types (not to scale)

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

- Write Page mode (up to 8 bytes)

- Endurance: 1M erase/write cycles

- Available blank or preprogrammed

- EUI-48™ or EUI-64™ MAC address

- Unlock sequence for user programming

- Dedicated watchdog output pin

- Dual retrigger using SPI bus or EVHS digital

- High-Speed Digital Event Detect (EVHS) with

- Low-Speed Event Detect (EVLS) with

- Edge triggered (rising or falling)

- Operates from V

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

Note:

array)

input

pulse count for 1

programmable debounce delays of 31 msec

and 500 msec

MCP795XXX is used in this document as a

generic part number for the MCP795WXX,

MCP795BXX devices.

WDO

V

IRQ

V

BAT

CS

X1

X2

SS

SOIC/TSSOP

1

2

3

4

5

6

7

CC

st

, 4

or V

th

,16

BAT

th

14

13

12

11

10

9

8

or 32

Vcc

CLKOUT/BOOT

EVHS

EVLS

SCK

SI

SO

nd

DS22280B-page 1

event

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