參數(shù)資料
型號: M41T11M6F
廠商: 意法半導體
英文描述: Serial Real Time Clock with 56 Bytes of NVRAM
中文描述: 串行實時時鐘與56字節(jié)的NVRAM
文件頁數(shù): 5/29頁
文件大?。?/td> 154K
代理商: M41T11M6F
M41T11
Summary description
5/29
1
Summary description
The M41T11is a low power Serial Real Time Clock with 56 bytes of NVRAM. A built-in
32.768kHz oscillator (external crystal controlled) and the first 8 bytes of the RAM are used
for the clock/calendar function and are configured in binary coded decimal (BCD) format.
Addresses and data are transferred serially via a two-line bi-directional bus. The built-in
address register is incremented automatically after each write or read data byte.
The M41T11 clock has a built-in power sense circuit which detects power failures and
automatically switches to the battery supply during power failures. The energy needed to
sustain the RAM and clock operations can be supplied from a small lithium coin cell.
Typical data retention time is in excess of 5 years with a 50mA/h 3V lithium cell. The
M41T11 is supplied in 8 lead Plastic Small Outline package or 28 lead SNAPHAT
package.
The 28-pin, 330mil SOIC provides sockets with gold plated contacts at both ends for direct
connection to a separate SNAPHAT housing containing the battery and crystal. The unique
design allows the SNAPHAT battery package to be mounted on top of the SOIC package
after the completion of the surface mount process. Insertion of the SNAPHAT housing after
reflow prevents potential battery and crystal damage due to the high temperatures required
for device surface-mounting. The SNAPHAT housing is keyed to prevent reverse insertion.
The SOIC and battery/crystal packages are shipped separately in plastic anti-static tubes or
in Tape & Reel form.
For the 28-lead SOIC, the battery/crystal package (i.e. SNAPHAT) part number is “M4Txx-
BR12SH” (see
Table 16 on page 27
).
Caution:
Do not place the SNAPHAT battery/crystal package “M4Txx-BR12SH” in conductive foam
since this will drain the lithium button-cell battery.
Figure 1.
Logic diagram
AI01000
OSCI
VCC
M41T11
VSS
SCL
OSCO
SDA
FT/OUT
VBAT
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相關代理商/技術參數(shù)
參數(shù)描述
M41T11M6TR 制造商:STMicroelectronics 功能描述:
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M41T11MH6 功能描述:實時時鐘 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
M41T11MH6E 功能描述:實時時鐘 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
M41T11MH6F 功能描述:實時時鐘 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