MCP7940NT-I/SN by Microchip Technology
Battery-Backed I2C Real-Time Clock/Calendar with SRAM
| Status: | Active |
|---|---|
| Series: | MCP7940N |
| RoHS: | Compliant |
Where to Buy
Prices starting from US$0.68
| Distributor | Stock | ||
|---|---|---|---|
|
Microchip Technology
from US$0.68
|
673,825
in stock
|
Buy Now |
|
Newark Electronics
from US$0.78
|
3,369
in stock
|
Buy Now |
|
element14
from US$0.86
|
3,369
in stock
|
Buy Now |
|
Farnell
from US$0.85
|
3,369
in stock
|
Buy Now |
|
Future Electronics
from US$0.69
|
3,300
in stock
|
Buy Now |
|
Avnet America
from US$0.78
|
0
in stock
|
Buy Now |
|
EBV Elektronik
-
|
0
in stock
|
Buy Now |
|
Avnet Silica
-
|
0
in stock
|
Buy Now |
| Buy Now |
Features
| Battery-Backed Real-Time Clock/Calendar (RTCC) |
| Hours, Minutes, Seconds, Day of Week, Day, Month, Year |
| Leap year compensated to 2399 |
| 12/24 hour modes |
| On-Chip Digital Trimming/Calibration |
| 1 PPM Resolution |
| ±129 PPM Range |
| Dual Programmable Alarms |
| Versatile Output Pin |
| Clock output with selectable frequency |
| Alarm output |
| General Purpose output |
| Time logged on switchover to and from Battery Backup |
| 64 Bytes Battery-Backed SRAM |
| I2C Clock Frequency up to 400 kHz |
| Operating Voltage 1.8V to 5.5V |
| Backup Voltage 1.3V to 5.5V |
| Low Typical Timekeeping Current |
| Automatic Switchover to Battery Backup |
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 +125 |
| Pins | Packaging | 8 | SOIC |
| Temp Range | -40C to +85C |
| Packing Media | Tape and reel (3300) |
Last 6 months Inventory & Pricing History
Resources
Board Design Files |
|---|
| Verilog Model - MCP7940N Device |
| MCP794xx Reference Layout Gerber Files |
Brochures |
|---|
| MCP794xx I2C Real-Time Clock/Calendar Brochure |
| I2C & SPI Real-Time Clock/Calendar Sell Sheet |
Code Examples |
|---|
| AN1355 PIC24F Source Code |
| AN1355 PIC18F Source Code |
Supporting Collateral |
|---|
| Enabling Intelligent Automation Using the MCP7941X I2C RTCC |
| Maxim DS1307 to MCP7940N Migration |
| Maxim DS1338 to MCP7940N Migration |
| ST M41T11 to MCP7940N Migration |
Environmental Information
| JEDEC Indicator | e3 |
|---|---|
| ROHS | Compliant |
| China EFUP | Compliant |
| Device Weight (g) | 0.078 |
| Shipping Weight (kg) | 0.230303 |
| Lead Count | 8 |
| Package Type | SOIC |
| Package Width or Size | .150In(3.90mm) |
| Soldering Composition | Matte Tin |
Alternative Descriptions
| RTCC with battery-backed SRAM | Microchip Technology |
| Rtc, I2C, Serial, 5.5V, Soic-8 | Newark Electronics |
| RTC, I2C, SERIAL, 5.5V, SOIC-8 | element14 |
| MCP7940N Series 5.5 V I2C / 2-Wire / Serial SMT Real Time Clock - SOIC-8 | Future Electronics |
| RTC, Date Time Format (Day/Date/Month/Year, HH:MM:SS), I2C, 1.8V to 5.5V Supply, SOIC-8 | Avnet America |
Frequently Asked Questions
Where can I find additional details, specifications and documents for a MCP7940NT-I/SN?
Additional datasheets, footprints and schematics for MCP7940NT-I/SN are listed on our Part Details page. You can also find images and similar parts to MCP7940NT-I/SN on this page.
What pricing and inventory information can I view?
Distributor pricing and stock information is available for MCP7940NT-I/SN on our Product Comparison page. Access via the 'View Pricing & Stock' button to view MCP7940NT-I/SN price breaks, MOQs, lead times, inventory and SKUs from distributors.
Who can I contact for technical support of the product?
Submit any questions directly to the customer support team of the distributor listing the product. For the MCP7940NT-I/SN you can contact the distributor directly for product support, shipping queries etc.
Is the MCP7940NT-I/SN RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by Microchip Technology.
Which authorised distributors for MCP7940NT-I/SN have stock available?
Authorised distributors including Microchip Technology, Newark Electronics, element14, Farnell and Future Electronics have stock available or on a lead time for MCP7940NT-I/SN.
How do I check stock and lead times for all distributors?
Stock availability and lead times will be displayed for MCP7940NT-I/SN often in real-time on the comparison pages.
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