參數(shù)資料
型號(hào)： M41T256YMH7TR
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： 0 TIMER(S), REAL TIME CLOCK, PDSO44
封裝： 0.330 INCH, PLASTIC, SOH-44
文件頁(yè)數(shù)： 10/30頁(yè)
文件大小： 271K
代理商： M41T256YMH7TR
Clock operation
M41T256Y
Table 3.
TIMEKEEPER register map
Keys:
S = Sign Bit
FT = Frequency Test Bit
ST = Stop Bit
WC = Write Clock Bit
X = '1' or '0'
BL = Battery Low Flag (Read only bit)
TB = Tamper Bit (Read only bit)
TEB = Tamper Enable Bit
0 = Must be set to '0'
SLP = Sleep Mode Bit
Note:
7FF0h through 7FF6h are invalid addresses and when read will return arbitrary data.
Power-on reset
The M41T256Y continuously monitors VCC. When VCC falls to the power fail detect trip
point, the RST pulls low (open drain) and remains low on power-up for tREC after VCC
passes VPFD (max). The RST pin is an open drain output and an appropriate pull-up resistor
should be chosen to control rise time.
Address
Data
Function/Range
BCD Format
D7
D6
D5
D4
D3
D2
D1
D0
7FFFh
10 Years
Year
00-99
7FFEh
0
10M
Month
01-12
7FFDh
0
10 Date
Date: Day of Month
Date
01-31
7FFCh
BL
FT
TEB
TB
0
Day of Week
Tamper/Da
y
0-1/01-07
7FFBh
0
10 Hours
Hours (24 Hour Format)
Hours
00-23
7FFAh
0
10 Minutes
Minutes
00-59
7FF9h
ST
10 Seconds
Seconds
00-59
7FF8h
WC
SLP
S
Calibration
Control
7FF7h
0.1 Seconds
0.01 Seconds
Seconds
00-99
7FF6h
X
XXXXX
X
Reserved
7FF5h
X
XXXXX
X
Reserved
7FF4h
X
XXXXX
X
Reserved
7FF3h
X
XXXXX
X
Reserved
7FF2h
X
XXXXX
X
Reserved
7FF1h
X
XXXXX
X
Reserved
7FF0h
X
XXXXX
X
Reserved
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M41T256YMT 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:256 Kbit 32K x8 SERIAL RTC
M41T256YMT7 功能描述:實(shí)時(shí)時(shí)鐘 Serial 256K (32Kx8) 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
M41T256YMT7E 功能描述:實(shí)時(shí)時(shí)鐘 Serial 256K (32Kx8) 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
M41T256YMT7F 功能描述:實(shí)時(shí)時(shí)鐘 Serial 256K (32Kx8) 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
M41T256YMT7TR 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:256 Kbit 32K x8 SERIAL RTC
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