MCP7940MT-I/MNY Clock,Timing & Frequency Management by Microchip Technology

I2C Real-Time Clock/Calendar with SRAM

Status: Active
Series: MCP7940M
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The MCP7940M I2CTM compatible real-time clock/calendar (RTCC) includes SRAM and a digital trimming circuit for accuracy which is normally found in higher priced devices. 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.

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Prices starting from US$0.61

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Newark Electronics
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Future Electronics
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TME
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Features

Hours, Minutes, Seconds, Day of Week, Day, Month, Year
Leap year compensated to 2399
12/24 hour modes
1 PPM Resolution
±129 PPM Range
Dual Programmable Alarms
Clock output with selectable frequency
Alarm output
General Purpose output
64 Bytes SRAM
I2C Clock Frequency up to 400 kHz
Operating Voltage 1.8V to 5.5V
Low Typical Timekeeping Current

Specifications

Max Interface Speed 400 KHz
Pin Count 8
Minimum Clock_Count 1 sec
User SRAM (Bytes) 64
EEPROM Data Memory Bytes 0
Unique ID with MAC Addr None
Temperature Range -40 to +85
Pins | Packaging 8 | TDFN
Temp Range -40C to +85C
Packing Media Tape and reel (3300)

Last 6 months Inventory & Pricing History


Resources







Environmental Information

JEDEC Indicator e4
ROHS Compliant
China EFUP Compliant
Device Weight (g) 0.0143
Shipping Weight (kg) 0.248485
Lead Count 8
Package Type TDFN
Package Width or Size 2x3x0.8mm
Soldering Composition NiPdAu

Alternative Descriptions

RTCC with SRAM (no battery backing) | Microchip Technology
Real Time Clock/Calender, 64B, I2C, Tdfn-8 | Newark Electronics
real time clock | Future Electronics
IC: RTC circuit | TME
RTC, I2C, 64BYTES SRAM, 8TDFN | Farnell
RTC IC, YY-MM-DD-DW, HH:MM:SS: 12Hr / 24Hr, I2C, 1.8 V to 5.5 V, 8 Pins, TDFN-EP | EBV Elektronik
Clock + calendar, I2C, RAM64x8, Uc=1.8/5.5V, -40+85°C | ECOM


Frequently Asked Questions

Where can I find additional details, specifications and documents for a MCP7940MT-I/MNY?

Additional datasheets, footprints and schematics for MCP7940MT-I/MNY are listed on our Part Details page. You can also find images and similar parts to MCP7940MT-I/MNY on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for MCP7940MT-I/MNY on our Product Comparison page. Access via the 'View Pricing & Stock' button to view MCP7940MT-I/MNY price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does MCP7940MT-I/MNY fall under?

The MCP7940MT-I/MNY is listed under Semiconductors - ICs > Clock,Timing & Frequency Management > Real Time Clocks.

Can I view similar or alternative parts?

You can view similar parts to MCP7940MT-I/MNY when available in the Real Time Clocks range under the specifications section at the bottom of the details page.

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Submit any questions directly to the customer support team of the distributor listing the product. For the MCP7940MT-I/MNY you can contact the distributor directly for product support, shipping queries etc.

Is the MCP7940MT-I/MNY RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Microchip Technology.

Which authorised distributors for MCP7940MT-I/MNY have stock available?

Authorised distributors including Microchip Technology, Ozdisan, Newark Electronics, Future Electronics and TME have stock available or on a lead time for MCP7940MT-I/MNY.

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