參數(shù)資料
型號(hào)： M41ST85WMH6F
廠商： 意法半導(dǎo)體
英文描述： 3.0/3.3V I2C Combination Serial RTC, NVRAM Supervisor and Microprocessor Supervisor
中文描述： 3.0/3.3V的I2C串行時(shí)鐘組合，NVRAM中監(jiān)督員和微處理器監(jiān)控
文件頁數(shù)： 1/34頁
文件大?。?/td> 226K
代理商： M41ST85WMH6F
1/34
January 2006
M41ST85W
3.0/3.3V I
2
C Combination Serial RTC, NVRAM
Supervisor and Microprocessor Supervisor
Rev 8.0
KEY FEATURES
■
AUTOMATIC BATTERY SWITCHOVER and
WRITE PROTECT FOR:
–
Internal Serial RTC and
–
External low power SRAM (LPSRAM)
400kHz I
2
C SERIAL INTERFACE
3.0/3.3V OPERATING VOLTAGE
–
V
CC
= 2.7 to 3.6V
ULTRA-LOW BATTERY SUPPLY CURRENT
of 500nA (max)
RoHS COMPLIANCE
Lead-free components are compliant with the
RoHS Directive.
■
■
■
■
Serial RTC Features
400kHz I
2
C
44 Bytes of General Purpose NVRAM
Counters for:
–
Seconds, Minutes, Hours, Day, Date,
Month, and Year
–
Century
–
10ths/100ths of seconds
–
Clock Calibration register allows
compensation for crystal variations over
temperature
Programmable Alarm with Repeat Modes
–
Functions in Battery Back-up Mode
Power-down Timestamp (HT Bit)
2.5 to 5.5V Oscillator Operating Voltage
■
■
■
■
■
■
Microprocessor Supervisor Features
Programmable Watchdog
–
62.5ms to 128s time-out period
Power-on Reset/Low Voltage Detect
–
Open drain reset output
–
Reset voltage, V
PFD
= 2.60V (nom)
–
Two Reset input pins
–
Watchdog can be steered to Reset output
Early Power-fail Warning circuit (PFI/PFO)
with 1.25V Precision Reference
■
■
■
Figure 1. 28-pin SOIC Package
Figure 2. 28-pin (300mil) SOIC Package
EMBEDDED Crystal
NVRAM Supervisor Features
Non-volatizes external LPSRAM
–
Automatically switches to back-up battery
and deselects (write-protects) external
LPSRAM via chip-enable gate
–
Power-fail deselect (write protect) voltage,
V
PFD
= 2.60V (nom)
–
Switchover , V
SO
= 2.50V (nom)
Battery Monitor (Battery Low flag)
■
■
Other Features
Programmable Squarewave Generator (1Hz
to 32KHz)
–40°C to +85°C Operation
Package Options:
–
28-lead SNAPHAT
IC (SOH28)
SNAPHAT Batter/Crystal top to be
ordered separately.
–
28-lead Embedded Crystal SOIC
(SOX28)
■
■
■
28
1
SOH28 (MH)
SNAPHAT (SH)
Battery & Crystal
SOX28 (MX)
相關(guān)PDF資料
PDF描述
M41ST85WMX6E 3.0/3.3V I2C Combination Serial RTC, NVRAM Supervisor and Microprocessor Supervisor
M41ST85WMX6F 3.0/3.3V I2C Combination Serial RTC, NVRAM Supervisor and Microprocessor Supervisor
M41ST95W 5.0 or 3.0V, 512 bit (64 bit x8) Serial RTC (SPI) SRAM and NVRAM Supervisor(5.0/3.0V, 512位(64位x8)串行RTC(SPI) SRAM和NVRAM監(jiān)控電路)
M41T0(中文) Serial Real-Time Clock(串行實(shí)時(shí)時(shí)鐘)
M41T00SC64 Real-Time Clock + 64Kbit (8192 x 8) EEPROM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M41ST85WMH6F-CUT TAPE 制造商:ST 功能描述:M41ST Series 3.3 V I2C Serial RTC NVRAM / Microprocessor Superviser - SOH-28
M41ST85WMH6TR 功能描述:實(shí)時(shí)時(shí)鐘 Advanced Analog 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(chǔ)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
M41ST85WMSX6 制造商: 功能描述: 制造商:undefined 功能描述:
M41ST85WMX 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 OR 3.0V, 512 bit 64 x 8 SERIAL RTC and NVRAM SUPERVISOR
M41ST85WMX6 功能描述:實(shí)時(shí)時(shí)鐘 Serial 512 (64x8) 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(chǔ)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
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