Microchip Technology MCP7940N-I/P
- Part Number:
- MCP7940N-I/P
- Manufacturer:
- Microchip Technology
- Ventron No:
- 3004403-MCP7940N-I/P
- Description:
- IC RTC CLK/CALENDAR I2C 8DIP
- Datasheet:
- MCP7940N-I/P
Description
The MCP7940N series of low-power Real-Time Clocks (RTCs) utilizes digital timing compensation for accurate timekeeping. It features a programmable output control for versatility and a power sense circuit that automatically switches to the backup supply. Using a low-cost 32.768 kHz crystal, it tracks time using internal registers and communicates via the I²C™ bus.
The clock/calendar automatically adjusts for months with fewer than 31 days, including leap year corrections. It operates in either 24-hour or 12-hour format with an AM/PM indicator and settable alarms to the second, minute, hour, day of the week, date, or month. The programmable CLKOUT generates frequencies of 32.768, 8.192, 4.096 kHz, and 1 Hz from the external crystal.
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.
Features
64 Bytes SRAM
Real-Time Clock/Calendar (RTCC) with battery backup
Dual alarm with single output
On-Chip Digital Trimming/Calibration
Programmable Open-Drain Output Control
64 Bytes SRAM, Battery Backed
Automatic Vcc Switchover to VBAT Backup Supply
Power-Fail Time-Stamp for Battery Switchover
Low-Power CMOS Technology
100 kHz and 400 kHz Compatibility
ESD Protection >4,000V
Pb-Free and RoHS Compliant
Applications
Timekeeping and date tracking
Alarm and event scheduling
Data logging and timestamping
Industrial control and automation
Consumer electronics
Medical devices
The MCP7940N series of low-power Real-Time Clocks (RTCs) utilizes digital timing compensation for accurate timekeeping. It features a programmable output control for versatility and a power sense circuit that automatically switches to the backup supply. Using a low-cost 32.768 kHz crystal, it tracks time using internal registers and communicates via the I²C™ bus.
The clock/calendar automatically adjusts for months with fewer than 31 days, including leap year corrections. It operates in either 24-hour or 12-hour format with an AM/PM indicator and settable alarms to the second, minute, hour, day of the week, date, or month. The programmable CLKOUT generates frequencies of 32.768, 8.192, 4.096 kHz, and 1 Hz from the external crystal.
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.
Features
64 Bytes SRAM
Real-Time Clock/Calendar (RTCC) with battery backup
Dual alarm with single output
On-Chip Digital Trimming/Calibration
Programmable Open-Drain Output Control
64 Bytes SRAM, Battery Backed
Automatic Vcc Switchover to VBAT Backup Supply
Power-Fail Time-Stamp for Battery Switchover
Low-Power CMOS Technology
100 kHz and 400 kHz Compatibility
ESD Protection >4,000V
Pb-Free and RoHS Compliant
Applications
Timekeeping and date tracking
Alarm and event scheduling
Data logging and timestamping
Industrial control and automation
Consumer electronics
Medical devices
Microchip Technology MCP7940N-I/P technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology MCP7940N-I/P.
- Factory Lead Time2 Weeks
- MountThrough Hole
- Mounting TypeThrough Hole
- Package / Case8-DIP (0.300, 7.62mm)
- Number of Pins8
- Weight930.006106mg
- Operating Temperature-40°C~85°C
- PackagingTube
- Published2010
- SeriesAutomotive, AEC-Q100
- JESD-609 Codee3
- FeatureAlarm, Leap Year, Square Wave Output, SRAM
- Part StatusActive
- Moisture Sensitivity Level (MSL)1 (Unlimited)
- Number of Terminations8
- ECCN CodeEAR99
- Terminal FinishMatte Tin (Sn) - annealed
- SubcategoryTimer or RTC
- TechnologyCMOS
- Voltage - Supply1.8V~5.5V
- Terminal PositionDUAL
- Peak Reflow Temperature (Cel)NOT APPLICABLE
- Supply Voltage2.5V
- Terminal Pitch2.54mm
- Reflow Temperature-Max (s)NOT APPLICABLE
- Base Part NumberMCP7940N
- Qualification StatusNot Qualified
- Power Supplies2/5V
- InterfaceI2C, 2-Wire Serial
- Memory Size64B
- Logic FunctionClock
- Screening LevelTS 16949
- Number of Timers1
- Time FormatHH:MM:SS (12/24 hr)
- Date FormatYY-MM-DD-dd
- Current - Timekeeping (Max)1.2μA @ 3.3V
- Time-MinSECONDS
- Interrupt CapabilityY
- Voltage - Supply, Battery1.3V~5.5V
- VolatileNO
- Information Access MethodI2C
- Height4.95mm
- Length10.16mm
- Width7.11mm
- REACH SVHCNo SVHC
- RoHS StatusROHS3 Compliant
- Lead FreeLead Free
Popular Search Part Number
Related Keywords
Search Tags
Latest News
-
14 November 2023
HX711 Load Cell Amplifier: Symbol, Manufacturer, Working Principle and Applications
Ⅰ. Overview of HX711Ⅱ. HX711 symbol, footprint and pin configurationⅢ. Manufacturer of HX711Ⅳ. Features of HX711Ⅴ. Technical parameters of HX711Ⅵ. Working principle of HX711 pressure sensorⅦ. Internal block... -
15 November 2023
An Introduction to USB to Serial Converter Module CP2102
Ⅰ. Overview of CP2102Ⅱ. Manufacturer of CP2102Ⅲ. CP2102 symbol, footprint and pin configurationⅣ. Features of CP2102Ⅴ. Technical parameters of CP2102Ⅵ. What are the advantages of CP2102?Ⅶ. What is... -
15 November 2023
S9015 PNP Transistor Equivalents, Structure, S9015 vs C9015 and More
Ⅰ. Overview of S9015 transistorⅡ. Structure and working principle of S9015 transistorⅢ. Pin configuration of S9015 transistorⅣ. Features of S9015 transistorⅤ. Technical parameters of S9015 transistorⅥ. Absolute maximum... -
16 November 2023
Get to Know the LM1117 Linear Voltage Regulator
Ⅰ. What is a voltage regulator?Ⅱ. Overview of LM1117 linear voltage regulatorⅢ. Pin configuration of LM1117Ⅳ. Features of LM1117 linear voltage regulatorⅤ. How does LM1117 linear voltage regulator...
Help you to save your cost and time.
Reliable package for your goods.
Fast Reliable Delivery to save time.
Quality premium after-sale service.