收藏本站
MCP9800/1/2/3
5.3
Registers
The MCP9800/1/2/3 has four registers that are
user-accessible. These registers are specified as the
Ambient Temperature (T A ) register, the Temperature
Limit-set (T SET ) register, the Temperature Hysteresis
(T HYST ) register and device Configuration (CONFIG)
register.
The Ambient Temperature register is a read-only
register and is used to access the ambient temperature
data. The data from the ADC is loaded in parallel in the
Resolution
One-Shot
Shutdown
Fault Queue
Alert Polarity
Alert Comp/Int
register. The Temperature Limit-set and Temperature
Hysteresis registers are read/write registers that
provide user-programmable temperature limits. If the
ambient temperature drifts beyond the programmed
limits, the MCP9800/1/2/3 outputs an alert signal using
the ALERT pin (refer to Section 5.3.4.3 “ALERT
Output Configuration” ). The device Configuration
register provides access for the user to configure the
MCP9800/1/2/3’s various features. These registers are
described in further detail in the following sections.
The registers are accessed by sending Register Point-
ers to the MCP9800/1/2/3 using the serial interface.
This is an 8-bit pointer. However, the two Least
Significant bits (LSbs) are used as pointers and all
other bits need to be cleared < 0 >. This device has addi-
tional registers that are reserved for test and
calibration. If these registers are accessed, the device
may not perform according to the specification. The
pointer description is shown below.
REGISTER 5-1:
REGISTER POINTER
Configuration
Register
Temperature
Register
T HYST
Register
T SET
Register
FIGURE 5-2:
ALERT
Output
ALERT Output
Control Logic
Register Block Diagram.
U-0
0
U-0
0
U-0
0
U-0
0
U-0
0
U-0
0
R/W-0
P1
R/W-0
P0
bit 7
Legend:
bit 0
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-2
bit 1-0
Unimplemented: Read as ‘ 0 ’
Px<1:0>: Pointer bits
00 = Temperature register (T A )
01 = Configuration register (CONFIG)
10 = Temperature Hysteresis register (T HYST )
11 = Temperature Limit-set register (T SET )
.
DS21909D-page 14
? 2010 Microchip Technology Inc.
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
MCPC4890E CTRLR POWER SSR 480V 90A AC OUT
MCS3264R050FER RES CURRENT SENSE .050 OHM 2W 1%
MCST4890ES RELAY SOFTSTART 480V 90A AC OUT
MCT0603MD8062DP500 RES 80.6K OHM 0.15W .5% SMD 0603
MCTC4890KVHD CTRLR TEMP SSR 480V 90A AC OUT
MCW0406MD7502BP100 RES 75K OHM 1/4W .1% 0406 WIDE
MCX241R RELAY SSR SPST-NO 280VAC1.5A SIP
MCXE480D5R RELAY SSR DC 480V 5A AC OUT SIP
相关代理商/技术参数
MCP9800DM-DL2 功能描述:温度传感器开发工具 MCP9800 Temp Data Logger Demo Brd 2 RoHS:否 制造商:Texas Instruments 产品类型:Temperature Sensors and Control ICs 工具用于评估:MSP430G2553 接口类型:USB 工作电源电压: 工作电源电流:
MCP9800DM-PCTL 功能描述:温度传感器开发工具 Thermal Sensor PIC- tail Demo BRD RoHS:否 制造商:Texas Instruments 产品类型:Temperature Sensors and Control ICs 工具用于评估:MSP430G2553 接口类型:USB 工作电源电压: 工作电源电流:
MCP9800DM-TS1 功能描述:温度传感器开发工具 MCP9800 Temp Sensor Demo Board RoHS:否 制造商:Texas Instruments 产品类型:Temperature Sensors and Control ICs 工具用于评估:MSP430G2553 接口类型:USB 工作电源电压: 工作电源电流:
MCP9800DM-TS1 制造商:Microchip Technology Inc 功能描述:TEMPERATURE SENSOR DEMO BOARD
MCP9801 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:2-Wire High-Accuracy Temperature Sensor
MCP9801A0-M/MS 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:2-Wire High-Accuracy Temperature Sensor
MCP9801A0-M/OT 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:2-Wire High-Accuracy Temperature Sensor
MCP9801A0-M/SN 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:2-Wire High-Accuracy Temperature Sensor