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Details for MCP79400-I/MS by Microchip Technology
MCP79400
MCP79400-I/MS
Buy Directly from Microchip Technology Inc (12000 in stock) $0.8600
I2C GP RTCC, 64B SRAM, ID
MCP79400-I/MS image

MCP79400-I/MS 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 RS Components
RTCC, GP I2C, 64B SRAM, ID, 8MSOP; 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:MSOP; No. of Pins:8Pins; IC Interface RoHS Compliant: Yes Newark Electronics
Real Time Clock Serial 64Byte 8-Pin MSOP Tube Avnet America
I2C GP RTCC 64B SRAM ID Microchip Technology Inc
I2C GP RTCC, 64B SRAM, ID8 MSOP 3x3mm TUBE Allied Electronics & Automation
Real Time Clock Serial 64Byte 8-Pin MSOP Tube Avnet Europe
Real Time Clock Serial 64Byte 8-Pin MSOP Tube Avnet Asia
I2CTM Compatible real-time clock/calendar (RTCC); MSOP-8 Future Electronics
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Details for MCP79400-I/MS by Microchip Technology
MCP79400
MCP79400-I/MS
Buy Directly from Microchip Technology Inc (12000 in stock) $0.8600
RTCC GP I2C 64B SRAM ID 8MSOP
MCP79400-I/MS image

MCP79400-I/MS by Microchip Technology

RTCC GP I2C 64B SRAM ID 8MSOP
Part Information
MCP79400-I/MS image
RoHS Compliant
Description
The MCP7940X Real-Time Clock/Calendar (RTCC) tracks time using internal counters for hours, minutes, seconds, days, months, years, and day of week. Alarms can be configured on all counters up to and including months. For usage and configuration, the MCP7940X supports I2C communications up to 400 kHz. The open-drain, multi-functional output can be configured to assert on an alarm match, to output a selectable frequency square wave or as a general purpose output. The MCP7940X is designed to operate using a 32.768 kHz tuning fork crystal with external crystal load capacitors. On-chip digital trimming can be used to adjust for frequency variance caused by crystal tolerance and temperature. SRAM and timekeeping circuitry are powered from the back-up supply when main power is lost, allowing the device to maintain accurate time and the SRAM contents. The times when the device switches over to the back-up supply and when primary power returns are both logged by the power-fail time-stamp. The MCP7940X features 64 bits of EEPROM which is only writable after an unlock sequence, making it ideal for storing a unique ID or other critical information. The MCP79401 and MCP79402 are pre-programmed with EUI-48 and EUI-64 addresses, respectively. Custom programming is also available.
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:
MSOP
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 RS Components
RTCC, GP I2C, 64B SRAM, ID, 8MSOP; 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:MSOP; No. of Pins:8Pins; IC Interface RoHS Compliant: Yes Newark Electronics
Real Time Clock Serial 64Byte 8-Pin MSOP Tube Avnet America
I2C GP RTCC 64B SRAM ID Microchip Technology Inc
I2C GP RTCC, 64B SRAM, ID8 MSOP 3x3mm TUBE Allied Electronics & Automation
Real Time Clock Serial 64Byte 8-Pin MSOP Tube Avnet Europe
Real Time Clock Serial 64Byte 8-Pin MSOP Tube Avnet Asia
I2CTM Compatible real-time clock/calendar (RTCC); MSOP-8 Future Electronics