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| 型号： | DS1629S+T&R |
| 厂商： | Maxim Integrated |
| 文件页数： | 3/23页 |
| 文件大小： | 490K |
| 描述： | IC THERM/RTC/CALENDAR DIG 8-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 功能： | 温度计，恒温计 |
| 传感器类型： | 内部 |
| 感应温度： | -55°C ~ 125°C |
| 精确度： | ±2°C（最小值） |
| 拓扑： | ADC，比较器，振荡器，寄存器库 |
| 输出类型： | I²C?/SMBus? |
| 输出警报： | 是 |
| 输出风扇： | 无 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -55°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
DS1629
3 of 23
The real-time clock/calendar maintains a BCD count of seconds, minutes, hours, day of the week, day of
the month, month, and year. It does so with an internal oscillator/ divider and a required 32.768kHz
crystal. The end of the month date is automatically updated for months with less than 31 days, including
compensation for leap years through the year 2100. The clock format is configurable as a 12- (power-up
default) or 24-hour format, with an AM/PM indicator in the 12-hour mode. The RTC can be shut down
by clearing a bit in the clock register.
The crystal frequency is internally divided by a factor that the user defines. The divided output is buffered
and can be used to clock a microcontroller.
The DS1629 features an open-drain alarm output. It can be configured to activate on a thermal event, time
event, either thermal or time, or neither thermal nor time (disabled, power-up state). The thermal alarm
becomes active when measured temperature is greater than or equal to the value stored in the TH
thermostat register. It will remain active until temperature is equal to or less than the value stored in TL,
allowing for programmable hysteresis. The clock alarm will activate at the specific minute of the week
that is programmed in the clock alarm register. The time alarm is cleared by reading from or writing to
either the clock register or the clock alarm register.
The DS1629 configuration register defines several key items of device functionality. It sets the
conversion mode of the digital thermometer and what event, if any, will constitute an alarm condition. It
also sets the active state of the alarm output. Finally, it enables/disables and sets the division factor for the
oscillator output.
The DS1629 also features 32 bytes of SRAM for storage of general information. This memory space has
no bearing on thermometer or chronograph operation. Possible uses for this memory are time/temperature
histogram storage, thermal data logging, etc.
Digital data is written to/read from the DS1629 via a 2-wire interface, and all communication is MSb
first. Individual registers are accessed by unique 8-bit command protocols.
The DS1629 features a wide power supply range (2.2V d V
DD
d 5.5V) for clock functionality, SRAM
data retention, and 2-wire communication. EEPROM writes and temperature conversions should only be
performed at 2.7V d V
DD
d 5.5V for reliable results.
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| DS1631S+T&R | IC THERMOMETER DIG HI-PREC 8SOIC |
| DS1721U+T&R | IC THERMOMETER/STAT DIG HP 8USOP |
| DS1722S | IC THERMOMETER DIG 3-WIRE 8-SOIC |
| DS1775R7+T&R | IC THERMOM/STAT DIG 111 SOT-23-5 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1630AB-100-IND | 制造商:未知厂家 制造商全称:未知厂家 功能描述:NVRAM (Battery Based) |
| DS1630AB-120-IND | 制造商:未知厂家 制造商全称:未知厂家 功能描述:NVRAM (Battery Based) |
| DS1630AB-70-IND | 制造商:未知厂家 制造商全称:未知厂家 功能描述:NVRAM (Battery Based) |
| DS1630AB-85-IND | 制造商:未知厂家 制造商全称:未知厂家 功能描述:NVRAM (Battery Based) |
| DS1630ABL-100 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:NVRAM (Battery Based) |
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