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参数资料
| 型号： | M41T80M6F |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PDSO8 |
| 封装： | 0.150 INCH, LEAD FREE, PLASTIC, SO1C-8 |
| 文件页数： | 21/25页 |
| 文件大小： | 343K |
| 代理商： | M41T80M6F |
M41T80
Description
Doc ID 9074 Rev 4
5/25
1
Description
The M41T80 is a low power serial RTC with a built-in 32.768 kHz oscillator (external crystal
controlled). Eight registers (see Table 3: Clock register map on page 14) are used for the
clock/calendar function and are configured in binary coded decimal (BCD) format. An
additional 12 registers provide status/control of alarm, 32 KHz output, and square wave
functions. Addresses and data are transferred serially via a two line, bi-directional I2C
interface. The built-in address register is incremented automatically after each WRITE or
READ data byte.
Functions available to the user include a time-of-day clock/calendar, alarm interrupts,
32 KHz output, and programmable square wave output. The eight clock address locations
contain the century, year, month, date, day, hour, minute, second and tenths/hundredths of
a second in 24-hour BCD format. Corrections for 28, 29 (leap year - valid until year 2100),
30 and 31 day months are made automatically.
The M41T80 is supplied in an 8-pin SOIC.
Figure 1.
Logic diagram
Table 1.
Signal names
XI
Oscillator input
XO
Oscillator output
IRQ/OUT/SQW
Interrupt / output driver / square wave (open drain)
SDA
Serial data input/output
SCL
Serial clock input
F32K
32 KHz square wave output (open drain)
VCC
Supply voltage
VSS
Ground
SCL
VCC
M41T80
VSS
SDA
F32K
IRQ/OUT/SQW
XI
XO
AI07005
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相关代理商/技术参数 |
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| M41T80M6TR | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:SERIAL ACCESS RTC WITH ALARMS |
| M41T81 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:SERIAL ACCESS RTC WITH ALARMS |
| M41T81_06 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Serial access Real-Time Clock with alarm |
| M41T81_08 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Serial access real-time clock with alarm |
| M41T81_10 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Serial access real-time clock with alarm |
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