M41ST87WMX6TR Active

Name: M41ST87WMX6TR
Brand: STMicroelectronics
SKU: M41ST87WMX6TR
Price: 7.2 USD
Availability: OutOfStock

5.0 V, 3.3/3.0 V secure real-time clock , NVRAM supervisor with tamper detection and 128 bytes of clearable NVRAM

Out of stock

$7.20

Key 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: V_PFD≈ 4.63 V; V_CC= 4.75 to 5.5 V THS = 0: V_PFD≈ 4.37 V; V_CC= 4.5 to 5.5 V M41ST87W: THS = 1: V_PFD≈ 2.9 V; V_CC= 3.0 to 3.6 V THS = 0: V_PFD≈ 2.63 V; V_CC= 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 (TP_CLR) Packaging includes a 28-lead, embedded crystal SOIC and a 20-lead SSOP Oscillator stop detection

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