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| 型号： | DS1780E/T&R |
| 厂商： | Maxim Integrated |
| 文件页数： | 6/28页 |
| 文件大小： | 0K |
| 描述： | IC CPU PERIPHERAL MON 24-TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1,000 |
| 功能： | 温度监控器，CPU 外围设备 |
| 传感器类型： | 内部 |
| 感应温度： | -40°C ~ 125°C |
| 精确度： | ±12°C（最小值） |
| 拓扑： | ADC（三角积分型），比较器，风扇速度控制，寄存器库 |
| 输出类型： | I²C?/SMBus? |
| 输出警报： | 无 |
| 输出风扇： | 是 |
| 电源电压： | 2.8 V ~ 5.75 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 24-TSSOP |
| 包装： | 带卷 (TR) |
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DS1780
2-WIRE SERIAL COMMUNICATION WITH THE DS1780 Figure 2
OPERATION - Power-on
Applying power to the DS1780 causes a reset of several of the registers. Power-on conditions of the
registers are shown in Table 2 above. Some registers have indeterminate power-on values, such as the
Limit and RAM registers of the Value RAM page, and these are not shown in the table. Upon power-up
the ADC is inactive. Writing Limits into the Value RAM should usually be the first action performed
after power up. The RST pin is bi-directional. It forces RESET at power-on, but can also be pulled low to
force RESET internally.
OPERATION - Resets
The DS1780 features four distinct resetting functions. Each one has a different effect on register contents
and the state of the RST output following the event. Each one is explained below:
Power-on Reset - On POR, all internal logic is reset, and registers are cleared to their default state (see
tables 10.x). Because Value RAM is typically the first area programmed upon power-up, it does not have
a defined state upon POR. Also, on POR, the RST output will be pulled to an active low state for 20 ms
(minimum).
A POR occurs every time V DD crosses the voltage level approximately equivalent to the sum of one n-
channel threshold (V TN ) and one p-channel threshold (V TP ), on a power-up or power-down condition.
DS1780 SRAM contents get “scrambled” when V DD falls below the greater of one n-channel V T or one p-
channel V T . Therefore, SRAM contents will always be in a defined state as supply voltage reaches the
minimum spec level of 2.8V, even in a power supply brownout condition.
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| DS1780K | 功能描述:KIT EVALUATION DS1780 RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 传感器类型:CMOS 成像，彩色（RGB） 传感范围:WVGA 接口:I²C 灵敏度:60 fps 电源电压:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相关产品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP |
| DS17885 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:3V/5V Real-Time Clock |
| DS17885-3 | 功能描述:实时时钟 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 |
| DS17885-3+ | 功能描述:实时时钟 3V/5V RTC 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 |
| DS17885-5 | 功能描述:实时时钟 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 |
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