Shenzhen Huahao Gaosheng Technology Co., Ltd
| Payment Terms | T/T in advance, Western Union, Xtransfer |
| Supply Ability | 1000 |
| Delivery Time | Within 3days |
| Packaging Details | Standard Packaging |
| Manufacturer Part Number | M41ST87WMX6 |
| Type | integrated circuit |
| Memory Type | standard |
| Resistance (Ohms) | standard |
| Brand Name | original |
| Model Number | M41ST87WMX6 |
| Certification | ROHS COMPLIANT |
| Place of Origin | original |
View Detail Information
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Product Specification
| Payment Terms | T/T in advance, Western Union, Xtransfer | Supply Ability | 1000 |
| Delivery Time | Within 3days | Packaging Details | Standard Packaging |
| Manufacturer Part Number | M41ST87WMX6 | Type | integrated circuit |
| Memory Type | standard | Resistance (Ohms) | standard |
| Brand Name | original | Model Number | M41ST87WMX6 |
| Certification | ROHS COMPLIANT | Place of Origin | original |
M41ST87WMX6 - STMICROELECTRONICS - 5.0, 3.3, OR 3.0V, 1280 BIT (160 X8) SECURE SERIAL RTC AND NVRAM SUPERVISOR WITH TAMP
Quick Detail:
5.0, 3.3, or 3.0V, 1280 bit (160 x8) Secure Serial RTC and NVRAM Supervisor with Tamper Detection
Description:
The M41ST87Y/W Serial TIMEKEEPER®/Controller SRAM is a low power 1280-bit, static CMOS SRAM organized as 160 bytes by 8 bits. A built-in 32.768 kHz oscillator (internal crystal-controlled) and 8 bytes of the SRAM (see Table 7., page 25) are used for the clock/calendar function and are configured in binary coded decimal (BCD) format.
An additional 11 bytes of RAM provide calibration, status/control of Alarm, Watchdog, Tamper, and Square Wave functions. 8 bytes of ROM and finally 128 bytes of User RAM are also provided. Addresses and data are transferred serially via a two line, bi-directional I2C interface. The built-in address register is incremented automatically after each WRITE or READ data byte. The M41ST87Y/W has a built-in power sense circuit which detects power failures and automatically switches to the battery supply when a power failure occurs. The energy needed to sustain the SRAM and clock operations can be supplied by a small lithium buttoncell supply when a power failure occurs.
Functions available to the user include a non-volatile, time-of-day clock/calendar, Alarm interrupts, Tamper Detection, Watchdog Timer, and programmable Square Wave output. Other features include a Power-On Reset as well as two additional debounced inputs (RSTIN1 and RSTIN2) which can also generate an output Reset (RST). The eight clock address locations contain the century, year, month, date, day, hour, minute, second and tenths/hundredths of a second in 24 hour BCD format. Corrections for 28, 29 (leap year), 30 and 31 day months are made automatically.
Applications:
■ 5.0, 3.3, OR 3.0V OPERATING VOLTAGE
■ SERIAL INTERFACE SUPPORTS I2C BUS (400kHz)
■ NVRAM SUPERVISOR FOR EXTERNAL LPSRAM
■ 2.5 TO 5.5V OSCILLATOR OPERATING VOLTAGE
■ AUTOMATIC SWITCH-OVER AND DESELECT CIRCUITRY
■ CHOICE OF POWER-FAIL DESELECT VOLTAGES
– M41ST87Y:
VCC = 4.75 to 5.5V;
THS Bit = '1': 4.50V ≤ VPFD ≤ 4.75V
VCC = 4.5 to 5.5V;
THS Bit = '0': 4.20V ≤ VPFD ≤ 4.50V
– M41ST87W:
VCC = 3.0 to 3.6V;
THS Bit = '1': 2.8V ≤ VPFD ≤ 3.0V
VCC = 2.7 to 3.6V;
THS Bit = '0': 2.55V ≤ VPFD ≤ 2.70V
■ TWO INDEPENDENT POWER-FAIL COMPARATORS (1.25V REFERENCE)
■ COUNTERS FOR TENTHS/HUNDREDTHS OF SECONDS, SECONDS, MINUTES,
HOURS, DAY, DATE, MONTH, YEAR, AND CENTURY
■ 128 BYTES OF GENERAL PURPOSE RAM
■ PROGRAMMABLE ALARM AND INTERRUPT FUNCTION (VALID EVEN DURING BATTERY BACK-UP MODE)
■ PROGRAMMABLE WATCHDOG TIMER
■ UNIQUE ELECTRONIC SERIAL NUMBER (8-BYTE)
■ 32kHz FREQUENCY OUTPUT AVAILABLE UPON POWER-ON
■ MICROPROCESSOR POWER-ON RESET
■ BATTERY LOW FLAG
■ ULTRA-LOW BATTERY SUPPLY CURRENT OF 500nA (TYP)
Specifications:
| Datasheets | M41ST87W/Y |
| Product Photos | 28-SOIC |
| Standard Package | 28 |
| Category | Integrated Circuits (ICs) |
| Family | Clock/Timing - Real Time Clocks |
| Series | - |
| Packaging | Tube |
| Type | Clock/Calendar |
| Features | Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer |
| Memory Size | 128B |
| Time Format | HH:MM:SS:hh (24 hr) |
| Date Format | YY-MM-DD-dd |
| Interface | I²C, 2-Wire Serial |
| Voltage - Supply | 2.7 V ~ 3.6 V |
| Voltage - Supply, Battery | 2.5 V ~ 3.6 V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Package / Case | 28-SOIC (0.295", 7.50mm Width) |
| Supplier Device Package | 28-SOX |
| Catalog Page | 969 (CN081 PDF) |
| Other Names | 497-5370-5 M41ST87WMX6-ND |
Company Details
Business Type:
Distributor/Wholesaler,Exporter,Seller
Year Established:
2023
Total Annual:
1000000-9000000
Employee Number:
50~70
Ecer Certification：
Active Member
Shenzhen Huahao Gaosheng Technology Co., Ltd is one of the world ' s leading distributors of Electronic Components . We focus on NXP , TI , ST , Microchip , ADI , Infineon , Onsemi , Intel , Micron and so on . With our own inventory warehours in Hongkong and Shenzhen . . With most ... Shenzhen Huahao Gaosheng Technology Co., Ltd is one of the world ' s leading distributors of Electronic Components . We focus on NXP , TI , ST , Microchip , ADI , Infineon , Onsemi , Intel , Micron and so on . With our own inventory warehours in Hongkong and Shenzhen . . With most ...
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