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參數(shù)資料
| 型號(hào)： | M41T56C64MY6E |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Serial Real Time Clock with 56 bytes of NVRAM+64 Kbit (8192 bit x 8) EEPROM |
| 中文描述： | 串行實(shí)時(shí)時(shí)鐘與56字節(jié)的NVRAM 64千位（8192位× 8）的EEPROM |
| 文件頁數(shù)： | 5/19頁 |
| 文件大?。?/td> | 110K |
| 代理商： | M41T56C64MY6E |
M41T56C64
Summary description
5/19
1
Summary description
The M41T56C64 is a low power, Serial Real Time Clock with 56 bytes of NVRAM plus a
64Kb EEPROM (see
Figure 3
). A built-in 32,768Hz oscillator (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 M41T56C64 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 for the Serial RTC is in excess of 10 years with a 50mAh, 3V
lithium cell. The M41T56C64 is supplied in an 18-lead Plastic SOIC package.
1.1
Calibration
As the crystal is molded together with the silicon in this package, ST can program the
appropriate calibration value necessary to achieve ±5 ppm accuracy at 25°C after two SMT
reflows (see
Figure 4
). This calibration value will be written into address 1550h of
the EEPROM. This clock accuracy can then be guaranteed to drift no more than ±3 ppm the
first year, and ±1 ppm for each following year due to crystal aging.
Figure 1.
Logic diagram
1.
Open drain output
AI09123
V
CC
M41T56
+
M24C64
(EEPROM)
V
SS
SCL
E
0
E
1
E
2
WC
SDA
FT/OUT(1)
V
BAT
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PDF描述 |
|---|---|
| M41T56C64MY6F | Serial Real Time Clock with 56 bytes of NVRAM+64 Kbit (8192 bit x 8) EEPROM |
| M41T56C64 | Serial Real Time Clock with 56 bytes of NVRAM + 64 Kbit (8192 bit x 8) EEPROM(帶56 bytes NVRAM和64 Kbit (8192 bit x 8) EEPROM的串行實(shí)時(shí)時(shí)鐘) |
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| M41T63Q6F | Serial Access Real-Time Clock with Alarms |
| M41T64Q6F | Serial Access Real-Time Clock with Alarms |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M41T56C64MY6F | 功能描述:實(shí)時(shí)時(shí)鐘 Serial 實(shí)時(shí)時(shí)鐘 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 |
| M41T56M | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:512 bit 64b x8 Serial Access TIMEKEEPER SRAM |
| M41T56M6 | 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 |
| M41T56M6E | 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 |
| M41T56M6F | 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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