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Details for MCP79400-I/SN by Microchip Technology
MCP79400
MCP79400-I/SN
Buy Directly from Microchip Technology Inc (899 in stock) $0.8200
I2C GP RTCC, 64B SRAM, ID
MCP79400-I/SN image

MCP79400-I/SN by Microchip Technology

I2C GP RTCC, 64B SRAM, ID
Features

General purpose RTCC with features that target low power and smart energy applications.

Low Power Operation
VCC Min = 1.8V
Icc < 5 u00b5A Typical Dynamic Current
Low Backup Power
VBAT Min = 1.3V
Ibat < 700nA Typical Timekeeping & SRAM Retention Current
Automatic Battery Switchover with Timestamp
VCC to VBAT (power lost)
VBAT to VCC (power restored)
Dual alarms with single Interrupt Output that operates on VCC or VBAT
Clock Out frequencies of 32.768, 8.192 & 4.096 KHz and 1 Hz
Digital Trimming Range from -127 to + 127 ppm in 1 ppm steps
1 ppm is approximately 86 milliseconds/day
Factory standard or custom ID programming available
Description
The MCP79400 general purpose I2CTM Compatible real-time clock/calendar (RTCC) is highly integrated with memory and advanced features normally found in higher priced devices. These features include a battery switchover circuit for backup power, a timestamp to log power failures and digital trimming for accuracy. Using a low-cost 32,768 kHz crystal or other clock source, time is tracked in either a 12-hour or 24-hour format with an AM/PM indicator and timing to the second, minute, hour, day of the week, day, month and year. As an interrupt or wakeup signal, a multifunction open drain output can be programmed as an Alarm Out or as a Clock Out that supports 4 selectable frequencies. In addition to the SRAM memory, there a unique ID in a locked section of EEPROM that can be unlocked and programmed by the end user.
Specifications
Interface:
I²C™
Vcc Min (V):
1.8
Vcc Max (V):
5.5
Vbat Min (V):
1.3
Vbat Max (V):
5.5
Ibat Min (nA):
700
User SRAM (Bytes):
64
Pin Count:
8
Max Interface Speed:
400 KHz
Unique_ID (Bits):
64
Minimum Clock_Count:
1 sec
Unique ID with MAC Addr:
Blank ID
Alarm Settings:
2 Alarms (1 sec)
Alarm / Clock Outputs:
IRQ/CLK
Digital Trimming:
-127 to +127ppm (1 ppm steps)
Power Fail Timestamp:
VCC Fail and VCC Restore
Temperature Range:
-40C to +85C
Alternate Descriptions
I2C GP RTCC- 64B SRAM- ID Onlinecomponents.com
I2C Real-Time Clock/Calendar SRAM SOIC8 RS Components
RTCC, GP I2C, 64B SRAM, ID, 8SOIC; Date Format:YYYY:MM:WK:DD:Hr:Min:Secs; Clock Format:12Hr / 24Hr; Clock IC Type:Alarm RTC; Supply Voltage Min:1.8V; Supply Voltage Max:5.5V; Clock IC Case Style:SOIC; No. of Pins:8Pins; IC Interface RoHS Compliant: Yes Newark Electronics
Real Time Clock Serial 64Byte 8-Pin SOIC N Tube Avnet America
I2C GP RTCC 64B SRAM ID Microchip Technology Inc
I2C GP RTCC, 64B SRAM, ID8 SOIC 3.90mm(.150in) TUBE Allied Electronics & Automation
Real Time Clock Serial 64Byte 8-Pin SOIC N Tube Avnet Europe
Real Time Clock Serial 64Byte 8-Pin SOIC N Tube Avnet Asia
MCP79400 Series 64 Byte I2C Real-Time Clock / Calendar - SOIC-8 Future Electronics
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Details for MCP79400-I/SN by Microchip Technology
MCP79400
MCP79400-I/SN
Buy Directly from Microchip Technology Inc (899 in stock) $0.8200
RTCC GP I2C 64B SRAM ID 8SOIC
MCP79400-I/SN image

MCP79400-I/SN by Microchip Technology

RTCC GP I2C 64B SRAM ID 8SOIC
Features
1 Million Erase/Write Cycles for Unique ID
100 kHz and 400 kHz Compatibility
64 Bytes SRAM, Battery Backed
64-Bit Unique ID:
Alarm output
Automatic VCC Switchover to VBAT Backup Supply
Battery Backup Current: <700nA @ 1.8V
CLKOUT with 4 selectable frequencies
Custom ID programming
Dual alarm with single output
Dynamic Current: 400 uf06dA max SRAM
Dynamic Current: 400 uf06dA max read
ESD Protection >4,000V
EUI-48u2122 or EUI-64u2122 MAC address
Hours, Minutes, Seconds, Day of Week, Day, Month and Year
Low-Power CMOS Technology:
On-Chip Digital Trimming/Calibration:
Packages include 8-Lead SOIC, TSSOP, 2x3 TDFN, MSOP
Pb-Free and RoHS Compliant
Power-Fail Time-Stamp for Battery Switchover
Programmable Open-Drain Output Control:
Protected EEPROM
Range -127 to +127 ppm
Resolution 1 ppm
Temp
User or factory programmable
Part Information
MCP79400-I/SN image
RoHS Compliant
Description
The MCP7940X series of low-power Real-Time Clocks (RTC) uses digital timing compensation for an accurate clock/calendar, a programmable output control for versatility, a power sense circuit that automatically switches to the backup supply, and nonvolatile memory for data storage. Using a low-cost 32.768 kHz crystal, it tracks time using several internal registers. For communication, the MCP7940X uses the I2C™ bus. The clock/calendar automatically adjusts for months with fewer than 31 days, including corrections for leap years. The clock operates in either the 24-hour or 12-hour format with an AM/PM indicator and settable alarm(s) to the second, minute, hour, day of the week, date or month. Using the programmable CLKOUT, frequencies of 32.768, 8.192 and 4.096 kHz and 1 Hz can be generated from the external crystal. Along with the battery-backed SRAM memory, a 64-bit protected EEPROM space is available for a unique ID or MAC address to be programmed at the factory or by the end user. The device is fully accessible through the serial interface while VCC is between 1.8V and 5.5V, but can operate down to 1.3V for timekeeping and SRAM retention only. The RTC series of devices are available in the standard 8-lead SOIC, TSSOP, MSOP and 2x3 TDFN packages.
Specifications
Date Format:
YYYY
Clock Format:
12Hr / 24Hr
Clock IC Type:
Alarm RTC
Supply Voltage Min:
1.8V
Supply Voltage Max:
5.5V
Clock IC Case Style:
SOIC
No. of Pins:
8Pins
IC Interface Type:
I2C
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Product Range:
-
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 2 - 1 year
SVHC:
No SVHC (27-Jun-2018)
Alternate Descriptions
I2C GP RTCC- 64B SRAM- ID Onlinecomponents.com
I2C Real-Time Clock/Calendar SRAM SOIC8 RS Components
RTCC, GP I2C, 64B SRAM, ID, 8SOIC; Date Format:YYYY:MM:WK:DD:Hr:Min:Secs; Clock Format:12Hr / 24Hr; Clock IC Type:Alarm RTC; Supply Voltage Min:1.8V; Supply Voltage Max:5.5V; Clock IC Case Style:SOIC; No. of Pins:8Pins; IC Interface RoHS Compliant: Yes Newark Electronics
Real Time Clock Serial 64Byte 8-Pin SOIC N Tube Avnet America
I2C GP RTCC 64B SRAM ID Microchip Technology Inc
I2C GP RTCC, 64B SRAM, ID8 SOIC 3.90mm(.150in) TUBE Allied Electronics & Automation
Real Time Clock Serial 64Byte 8-Pin SOIC N Tube Avnet Europe
Real Time Clock Serial 64Byte 8-Pin SOIC N Tube Avnet Asia
MCP79400 Series 64 Byte I2C Real-Time Clock / Calendar - SOIC-8 Future Electronics