MCP7940M-I/ST Clock,Timing & Frequency Management by Microchip Technology
I2C Real-Time Clock/Calendar with SRAM
| Status: | Active |
|---|---|
| Series: | MCP7940M |
| RoHS: | Compliant |
Where to Buy
Prices starting from US$0.58
| Distributor | Stock | ||
|---|---|---|---|
|
Microchip Technology
from US$0.58
|
259
in stock
|
Buy Now |
|
Newark Electronics
from US$0.73
|
42
in stock
|
Buy Now |
|
element14
from US$0.70
|
42
in stock
|
Buy Now |
|
Farnell
from US$0.67
|
42
in stock
|
Buy Now |
|
Future Electronics
from US$0.62
|
0
in stock
|
Buy Now |
|
TME
from US$0.68
|
0
in stock
|
Buy Now |
|
EBV Elektronik
-
|
0
in stock
|
Buy Now |
|
Avnet Silica
-
|
0
in stock
|
Buy Now |
| Buy Now |
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 | TSSOP |
| Temp Range | -40C to +85C |
| Packing Media | Tube (100) |
Last 6 months Inventory & Pricing History
Resources
Data Sheets |
|---|
| MCP7940M Low-Cost I2C RTCC with SRAM |
Board Design Files |
|---|
| Verilog Model - MCP7940M Device |
Code Examples |
|---|
| AN1355 PIC24F Source Code |
| AN1355 PIC18F Source Code |
Supporting Collateral |
|---|
| Enabling Intelligent Automation Using the MCP7941X I2C RTCC |
Environmental Information
| JEDEC Indicator | e3 |
|---|---|
| ROHS | Compliant |
| China EFUP | Compliant |
| Device Weight (g) | 0.033 |
| Shipping Weight (kg) | 0.09 |
| Lead Count | 8 |
| Package Type | TSSOP |
| Package Width or Size | 4.4mm |
| Soldering Composition | Matte Tin |
Alternative Descriptions
| RTCC with SRAM (no battery backing) | Microchip Technology |
| Rtc, I2C, 64Bytes Sram, 8Tssop | Newark Electronics |
| RTC, I2C, 64BYTES SRAM, 8TSSOP | element14 |
| MCP7940M Series 5.5 V 64 byte Low-Cost I2C™ Real-Time Clock/Calendar with SRAM | Future Electronics |
| IC: RTC circuit | TME |
| RTC IC, YY-MM-DD-DW, HH:MM:SS: 12Hr / 24Hr, I2C, 1.8 V to 5.5 V, 8 Pins, TSSOP | EBV Elektronik |
Frequently Asked Questions
Where can I find additional details, specifications and documents for a MCP7940M-I/ST?
Additional datasheets, footprints and schematics for MCP7940M-I/ST are listed on our Part Details page. You can also find images and similar parts to MCP7940M-I/ST on this page.
What pricing and inventory information can I view?
Distributor pricing and stock information is available for MCP7940M-I/ST on our Product Comparison page. Access via the 'View Pricing & Stock' button to view MCP7940M-I/ST price breaks, MOQs, lead times, inventory and SKUs from distributors.
What category does MCP7940M-I/ST fall under?
The MCP7940M-I/ST 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 MCP7940M-I/ST when available in the Real Time Clocks range under the specifications section at the bottom of the details page.
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 MCP7940M-I/ST you can contact the distributor directly for product support, shipping queries etc.
Is the MCP7940M-I/ST RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by Microchip Technology.
Which authorised distributors for MCP7940M-I/ST have stock available?
Authorised distributors including Microchip Technology, Newark Electronics, element14, Farnell and Future Electronics have stock available or on a lead time for MCP7940M-I/ST.
How do I check stock and lead times for all distributors?
Stock availability and lead times will be displayed for MCP7940M-I/ST often in real-time on the comparison pages.
What if I can't find stock of MCP7940M-I/ST?
You can fill out our help required form which you can use to request a quote for MCP7940M-I/ST from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.