参数资料
| 型号： | DS1677E |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 11/18页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR SYSTEM PORT 20-TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 74 |
| 类型： | 便携系统控制器 |
| 特点： | 警报器，闰年，监视计时器 |
| 时间格式： | HH:MM:SS（12/24 小时） |
| 数据格式： | YY-MM-DD-dd |
| 接口： | 3 线串口 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 电压 - 电源，电池： | 2.5 V ~ 3.7 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 20-TSSOP |
| 包装： | 管件 |
DS1677
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DETAILED DESCRIPTION
The microprocessor monitor circuitry of the DS1677 provides three basic functions. First, a precision
temperature-compensated reference and comparator circuit monitors the status of VCC. When an out-of-
tolerance condition occurs, an internal power-fail signal is generated which forces the to RST the active
state. When VCC returns to an in-tolerance condition, the RST signal is kept in the active state for 250ms
to allow the power supply and processor to stabilize. The DS1677 debounces a pushbutton input and
guarantees an active RST pulse width of 250ms. The third function is a watchdog timer. The DS1677 has
an internal timer that forces the RST signal to the active state if the strobe input is not driven low prior to
watchdog timeout.
The DS1677 also provides a 3-channel 8-bit successive approximation ADC. The converter has an
internal 2.55V (typical) reference voltage generated by an on-board band-gap circuit. The ADC is
monotonic (no missing codes) and has an internal analog filter to reduce high-frequency noise.
OPERATION
The block diagram in Figure 1 shows the main elements of the DS1677. The following paragraphs
describe the function of each pin.
DS1677 BLOCK DIAGRAM Figure 1
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| DS1678S/T&R | IC RECORDER REALTIME EVENT 8SOIC |
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| DS1683S+T&R | IC REAL TIME EVENT REC 8SOIC |
| DS1685EN-5/T&R | IC RTC 5V 64BIT Y2K IND 24TSSOP |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1677E+ | 功能描述:实时时钟 Portable System Controller RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| DS1677E-5 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Portable System Controller(275.85 k) |
| DS1678 | 功能描述:实时时钟 Real-Time Event Recorder RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| DS1678+ | 功能描述:实时时钟 Real-Time Event Recorder RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| DS1678J | 制造商:未知厂家 制造商全称:未知厂家 功能描述:2-Input Digital Multiplexer |
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