參數(shù)資料
型號: M41ST87WMX6
廠商: STMICROELECTRONICS
元件分類: 時(shí)鐘/數(shù)據(jù)恢復(fù)及定時(shí)提取
英文描述: 1 TIMER(S), REAL TIME CLOCK, PDSO28
封裝: 0.300 INCH, ROHS COMPLIANT, PLASTIC, SOX-28
文件頁數(shù): 1/52頁
文件大?。?/td> 689K
代理商: M41ST87WMX6
April 2010
Doc ID 9497 Rev 8
1
M41ST87Y
M41ST87W
5.0 V and 3.3/3.0 V secure serial RTC and NVRAM supervisor
with tamper detection and 128 bytes of clearable NVRAM
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:
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
28-pin, (300 mil)
SOX28 (MX)
Embedded crystal
SSOP20 (SS)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M41ST87WMX6F 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 V and 3.3/3.0 V secure serial RTC and NVRAM supervisor with tamper detection and 128 bytes of clearable NVRAM
M41ST87WMX6TR 功能描述:實(shí)時(shí)時(shí)鐘 Serial 1280 (160x8) RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時(shí)間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
M41ST87WSS6 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 V and 3.3/3.0 V secure serial RTC and NVRAM supervisor with tamper detection and 128 bytes of clearable NVRAM
M41ST87WSS6F 功能描述:實(shí)時(shí)時(shí)鐘 128 NVRAM Serial RTC 3.0 to 3.6 Vcc RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時(shí)間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
M41ST87Y 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0, 3.3, or 3.0V, 1280 bit (160 x8) Secure Serial RTC and NVRAM Supervisor with Tamper Detection