M41ST87WMX6TR Real-Time Clock (RTC) ICs by STMicroelectronics
5.0 V, 3.3/3.0 V secure real-time clock , NVRAM supervisor with tamper detection and 128 bytes of clearable NVRAM
| Status: | Active |
|---|---|
| Series: | M41ST87W |
| RoHS: | Compliant |
Where to Buy
Prices starting from US$5.51
| Distributor | Stock | ||
|---|---|---|---|
|
RS
from US$6.06
|
No stock
|
Buy Now |
|
Avnet America
from US$5.51
|
1,000
in stock
|
Buy Now |
|
Newark Electronics
from US$8.33
|
990
in stock
|
Buy Now |
|
element14
from US$7.52
|
990
in stock
|
Buy Now |
|
Farnell
from US$7.59
|
990
in stock
|
Buy Now |
|
Avnet Silica
-
|
1,000
in stock
|
Buy Now |
|
Future Electronics
from US$5.65
|
-
|
Buy Now |
|
EBV Elektronik
-
|
-
|
Buy Now |
Features
| 5.0, 3.3, or 3.0 V operation |
| 400 kHz I2C bus |
| NVRAM supervisor to non-volatize external LPSRAM |
| 2.5 to 5.5 V oscillator operating voltage |
| Automatic switchover and deselect circuitry |
| Choice of power-fail deselect voltages M41ST87Y: (not recommended for new design, contact ST sales office for availability) THS = 1: VPFD≈ 4.63 V; VCC= 4.75 to 5.5 V THS = 0: VPFD≈ 4.37 V; VCC= 4.5 to 5.5 V M41ST87W: THS = 1: VPFD≈ 2.9 V; VCC= 3.0 to 3.6 V THS = 0: VPFD≈ 2.63 V; VCC= 2.7 to 3.6 V |
| M41ST87Y: (not recommended for new design, contact ST sales office for availability) THS = 1: VPFD≈ 4.63 V; VCC= 4.75 to 5.5 V THS = 0: VPFD≈ 4.37 V; VCC= 4.5 to 5.5 V |
| M41ST87W: THS = 1: VPFD≈ 2.9 V; VCC= 3.0 to 3.6 V THS = 0: VPFD≈ 2.63 V; VCC= 2.7 to 3.6 V |
| Two independent power-fail comparators (1.25 V reference) |
| Counters for tenths/hundredths of seconds, seconds, minutes, hours, day, date, month, year, and century |
| 128 bytes of clearable, general purpose NVRAM |
| Programmable alarm and interrupt function (valid even during battery backup mode) |
| Programmable watchdog timer |
| Unique electronic serial number (8-byte) |
| 32 kHz frequency output available upon power-on |
| Microprocessor power-on reset output |
| Battery low flag |
| Ultra-low battery supply current of 500 nA (typ) |
| Security features Tamper indication circuits with timestamp and RAM clear LPSRAM clear function (TPCLR) Packaging includes a 28-lead, embedded crystal SOIC and a 20-lead SSOP Oscillator stop detection |
| Tamper indication circuits with timestamp and RAM clear |
| LPSRAM clear function (TPCLR) |
| Packaging includes a 28-lead, embedded crystal SOIC and a 20-lead SSOP |
| Oscillator stop detection |
Resources
Product Specifications |
|---|
| DS3301 5.0 V and 3.3/3.0 V secure serial RTC and NVRAM supervisor with tamper detection and 128 bytes of clearable NVRAM |
Brochures |
|---|
| Serial real-time clock ICs |
Alternative Descriptions
| Real Time Clock Serial 160Byte 28-Pin SOX T/R | Avnet America |
| Alarm Rtc, 160B, I2C, 3.6V, Soic-28 | Newark Electronics |
| ALARM RTC, 160B, I2C, 3.6V, SOIC-28 | element14 |
| Secure Serial RTC NVRAM Supervisor SOX28 | RS |
| M41ST Series 3.3 V SMT 128 Byte NVRAM Tamper Detection Supervisor - SOIC-28 | Future Electronics |
Frequently Asked Questions
Where can I find additional details, specifications and documents for a M41ST87WMX6TR?
Additional datasheets, footprints and schematics for M41ST87WMX6TR are listed on our Part Details page. You can also find images and similar parts to M41ST87WMX6TR on this page.
What pricing and inventory information can I view?
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What category does M41ST87WMX6TR fall under?
The M41ST87WMX6TR is listed under Clocks and Timers > Real-Time Clock (RTC) ICs > RTC - Serial Interface.
Can I view similar or alternative parts?
You can view similar parts to M41ST87WMX6TR when available in the RTC - Serial Interface 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 M41ST87WMX6TR you can contact the distributor directly for product support, shipping queries etc.
Is the M41ST87WMX6TR RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by STMicroelectronics.
Which authorised distributors for M41ST87WMX6TR have stock available?
Authorised distributors including Avnet America, Newark Electronics, element14, Farnell and Avnet Silica have stock available or on a lead time for M41ST87WMX6TR.
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