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MCP795W11

Enhanced Feature Battery-Backed SPI Real-Time Clock/Calendar with Pre-Programmed EUI-48™ MAC ID

Status: In Production

Features:

  • VCC Min = 1.8V
  • Icc < 1 µA Typical Standby Current
  • VBAT Min = 1.3V
  • Ibat < 700nA Typical Timekeeping & SRAM Retention Current
  • VCC to VBAT (VCC Lost)
  • VBAT to VCC (VCC Restored)
  • IRQ (VCC or VBAT)
  • WDO (VCC)
  • Clock Out frequencies: 32.768, 8.192 & 4.096 KHz and 1 Hz
  • Adjusts up to 22 seconds/day
  • SPI Bus or EVHS digital input
  • High speed with programmable pulse count (EVHS)
  • Low speed with programmable debounce delay (EVLS)
  • Protect: None, 1/4, 1/2 or all of array
  • Unique ID is factory programmed with MAC Address
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The MCP795W11 SPI RTCC is highly integrated with memory and advanced features normally found in higher priced devices. By starting with a basic real-time clock, digital trimming was added for higher accuracy, a battery switchover for backup power, a timestamp to log power failures and three types of memory, which includes SRAM, EEPROM and a unique ID in a locked section of EEPROM that is preprogrammed with a 48-bit MAC Address that can also be ordered blank for the end user to program. By adding a watchdog timer and two programmable event detect inputs, lower power and more system robustness can be achieved by off-loading MCU functions and allowing it to sleep for longer periods of time.

Additional Features

      Full Featured RTCC targets smart energy, communications and home appliance applications.

    • Low Power Operation
      • VCC Min = 1.8V
      • Icc < 1 µA Typical Standby Current
    • Low Backup Power
      • VBAT Min = 1.3V
      • Ibat < 700nA Typical Timekeeping & SRAM Retention Current
    • Automatic Battery Switchover with Timestamp
      • VCC to VBAT (VCC Lost)
      • VBAT to VCC (VCC Restored)
    • Dual configurable alarms with a 0.01 sec count on one alarm
      • IRQ (VCC or VBAT)
      • WDO (VCC)
    • Clock Out frequencies: 32.768, 8.192 & 4.096 KHz and 1 Hz
    • Digital Trimming Range from -255 to + 255 ppm in 1 ppm steps
      • Adjusts up to 22 seconds/day
    • Watchdog Timer - Dual Retriggers
      • SPI Bus or EVHS digital input
    • Dual Configurable Event Detects
      • High speed with programmable pulse count (EVHS)
      • Low speed with programmable debounce delay (EVLS)
    • EEPROM has 8 Bytes/Page with Block Sector write protection
      • Protect: None, 1/4, 1/2 or all of array
    • Unique ID is factory programmed with MAC Address
Parametrics
Name
Value
Max Communications Speed
10 MHz
Pin Count
14
Minimum Clock Count (seconds)
0.01 sec
Battery-backed SRAM (Bytes)
64
EEPROM (Kbits)
1
Unique ID (bits)
128
Unique ID Programming
EUI-48
Temperature Range (C)
-40 to +85

Documents

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Development Environment

  • Programmers
  • Demo & Evaluation Boards
  • Application Examples
Programmers
MPLAB PM3 Universal Device Programmer
MPLAB PM3 Universal Device Programmer ( DV007004 )

The MPLAB® PM3 Universal Device Programmer is easy to use and operates with a PC or as a stand-alone unit, and programs Microchip's entire line of PIC® devices as well as the latest dsPIC® DSC devices. When used standalone, data can be loaded and saved with the SD/MMC card (not included).

Learn More
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Demo & Evaluation Boards
SPI RTCC PICtail Plus Daughter Card
SPI RTCC PICtail Plus Daughter Card ( AC164147 )

The MCP795XX PICtail™ Plus Daughter Board demonstrates the features and abilities of the MCP795XX SPI Real-Time Clock/Calendar (RTCC) family in standard development platforms. This daughter board will support the full featured 14-pin MCP795W2X and MCP795W1X devices. By designing this daughter board with both PICtail and PICtail Plus connectors, it will operate with the Explorer 16...

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MCP795W11-I/ST
0.060000
0.125000
14
TSSOP
4.4mm
Matte Tin
e3
MCP795W11T-I/ST
0.060000
0.246800
14
TSSOP
4.4mm
Matte Tin
e3
MCP795W11-I/SL
0.143200
0.280702
14
SOIC
.150In(3.90mm)
Matte Tin
e3
MCP795W11T-I/SL
0.143200
0.325000
14
SOIC
.150In(3.90mm)
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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