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參數資料
| 型號： | M41ST87WMX6T |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 時鐘/數據恢復及定時提取 |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PDSO28 |
| 封裝： | 0.300 INCH, PLASTIC, SOIC-28 |
| 文件頁數： | 1/38頁 |
| 文件大小： | 552K |
| 代理商： | M41ST87WMX6T |
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PRELIMINARY DATA
April 2003
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
Rev. 2.0
M41ST87Y
M41ST87W
5.0, 3.3, or 3.0V, 1280 bit (160 x 8) SECURE SERIAL RTC
and NVRAM SUPERVISOR with TAMPER DETECTION
FEATURES SUMMARY
s
5.0, 3.3, OR 3.0V OPERATING VOLTAGE
s
SERIAL INTERFACE SUPPORTS I2C BUS
(400kHz)
s
NVRAM SUPERVISOR FOR EXTERNAL
LPSRAM
s
2.5 TO 5.5V OSCILLATOR OPERATING
VOLTAGE
s
AUTOMATIC SWITCH-OVER and DESELECT
CIRCUITRY
s
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
s
TWO INDEPENDENT POWER FAIL
COMPARATORS (1.25V REFERENCE)
s
COUNTERS FOR TENTHS/HUNDREDTHS
OF SECONDS, SECONDS, MINUTES,
HOURS, DAY, DATE, MONTH, YEAR, and
CENTURY
s
128 BYTES OF GENERAL PURPOSE RAM
s
PROGRAMMABLE ALARM and INTERRUPT
FUNCTION (VALID EVEN DURING BATTERY
BACK-UP MODE)
s
PROGRAMMABLE WATCHDOG TIMER
s
UNIQUE ELECTRONIC SERIAL NUMBER (8-
BYTE)
s
32kHz FREQUENCY OUTPUT AVAILABLE
UPON POWER-ON
s
MICROPROCESSOR POWER-ON RESET
s
BATTERY LOW FLAG
s
ULTRA-LOW BATTERY SUPPLY CURRENT
OF 500nA (TYP)
SECURITY FEATURES
s
TAMPER INDICATION CIRCUITS WITH
TIMESTAMP and RAM CLEAR
s
LPSRAM CLEAR FUNCTION (TPCLR)
s
PACKAGING INCLUDES A 28-LEAD,
EMBEDDED CRYSTAL SOIC
s
OSCILLATOR STOP DETECTION
Figure 1. 28-pin (300mil) SOIC Package
SOX28 (MX)
EMBEDDED Crystal
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相關代理商/技術參數 |
參數描述 |
|---|---|
| M41ST87WMX6TR | 功能描述:實時時鐘 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:實時時鐘 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 |
| M41ST87Y_08 | 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 |
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