- 您現在的位置：買賣IC網 > PDF目錄373995 > ADM1021AARQ (ANALOG DEVICES INC) Low-Cost Microprocessor System Temperature Monitor PDF資料下載
參數資料
| 型號： | ADM1021AARQ |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 模擬信號調理 |
| 英文描述： | Low-Cost Microprocessor System Temperature Monitor |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO16 |
| 封裝： | MO-137AB, QSOP-16 |
| 文件頁數： | 7/12頁 |
| 文件大小： | 163K |
| 代理商： | ADM1021AARQ |
ADM1021A
–7–
REV. A
Table III. List of ADM1021A Registers
READ Address (Hex)
WRITE Address (Hex)
Name
Power-On Default
Not Applicable
00
01
02
03
04
05
06
07
08
Not Applicable
10
11
12
13
14
15
17
19
20
FE
FF
Not Applicable
Not Applicable
Not Applicable
Not Applicable
09
0A
0B
0C
0D
0E
0F
1
Not Applicable
11
12
13
14
16
18
Not Applicable
21
Not Applicable
Not Applicable
Address Pointer
Local Temp. Value
Remote Temp. Value
Status
Configuration
Conversion Rate
Local Temp. High Limit
Local Temp. Low Limit
Remote Temp. High Limit
Remote Temp. Low Limit
One-Shot
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Manufacturer Device ID
Die Revision Code
Undefined
1000 0000 (80h) (–128
°
C)
1000 0000 (80h) (–128
°
C)
Undefined
0000 0000 (00h)
0000 0010 (02h)
0111 1111 (7Fh) (+127
°
C)
1100 1001 (C9h) (–55
°
C)
0111 1111 (7Fh) (+127
°
C)
1100 1001 (C9h) (–55
°
C)
Undefined
2
Undefined
2
Undefined
2
Undefined
2
Undefined
2
Undefined
2
Undefined
2
Undefined
2
Undefined
0100 0001 (41h)
0011 xxxx
(3xh)
NOTES
1
Writing to address 0F causes the ADM1021A to perform a single measurement. It is not a data register as such and it does not matter what data is written to it.
2
These registers are reserved for future versions of the device.
Table I. Temperature Data Format
Temperature
0
°
C
1
°
C
10
°
C
25
°
C
50
°
C
75
°
C
100
°
C
125
°
C
127
°
C
Digital Output
0 000 0000
0 000 0001
0 000 1010
0 001 1001
0 011 0010
0 100 1011
0 110 0100
0 111 1101
0 111 1111
REGISTERS
The ADM1021A contains nine registers that are used to store
the results of remote and local temperature measurements,
high-and low-temperature limits, and to configure and control
the device. A description of these registers follows, and further
details are given in Tables II to IV. It should be noted that the
ADM1021A’s registers are dual port, and have different addresses
for read and write operations. Attempting to write to a read address,
or to read from a write address, will produce an invalid result.
Register addresses above 0Fh are reserved for future use or used
for factory test purposes and should not be written to.
Address Pointer Register
The Address Pointer Register itself does not have, nor does it
require, an address, as it is the register to which the first data
byte of every Write operation is written automatically. This data
byte is an address pointer that sets up one of the other registers
for the second byte of the Write operation, or for a subsequent
Read operation.
Value Registers
The ADM1021A has two registers to store the results of Local
and Remote temperature measurements. These registers are
written to by the ADC and can only be read over the SMBus.
Status Register
Bit 7 of the Status Register indicates that the ADC is busy con-
verting when it is high. Bits 5 to 3 are flags that indicate the
results of the limit comparisons.
If the local and/or remote temperature measurement is above the
corresponding high temperature limit or below the corresponding
low temperature limit, then one or more of these flags will be set.
Bit 2 is a flag that is set if the remote temperature sensor is open-
circuit. These five flags are NOR’d together, so that if any of them
is high, the
ALERT
interrupt latch will be set and the
ALERT
output will go low. Reading the Status Register will clear the five
flag bits, provided the error conditions that caused the flags to be
set have gone away. While a limit comparator is tripped due to a
value register containing an out-of-limit measurement, or the sen-
sor is open-circuit, the corresponding flag bit cannot be reset. A
flag bit can only be reset if the corresponding value register con-
tains an in-limit measurement, or the sensor is good.
Table II. Status Register Bit Assignments
Bit
Name
Function
7
6
5
4
3
2
1–0
BUSY
LHIGH
*
LLOW
*
RHIGH
*
RLOW
*
OPEN
*
1 When ADC Converting.
1 When Local High Temp Limit Tripped.
1 When Local Low Temp Limit Tripped.
1 When Remote High Temp Limit Tripped.
1 When Remote Low Temp Limit Tripped.
1 When Remote Sensor Open-Circuit.
Reserved.
*
These flags stay high until the status register is read or they are reset by POR.
相關PDF資料 |
PDF描述 |
|---|---|
| ADM1021 | Low Cost Microprocessor System Temperature Monitor |
| ADM1021ARQ | Low Cost Microprocessor System Temperature Monitor |
| ADM1022 | Low-Cost PC Temperature Monitor and Fan Control ASIC |
| ADM1022ARQ | Low-Cost PC Temperature Monitor and Fan Control ASIC |
| ADM1023 | LJT 6C 6#12 PIN PLUG |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ADM1021AARQ-REEL | 功能描述:IC SENSOR TEMP DUAL3/5.5V 16QSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 熱管理 系列:- 標準包裝:1 系列:- 功能:溫度監控系統（傳感器） 傳感器類型:內部和外部 感應溫度:-40°C ~ 125°C，外部傳感器 精確度:±2.5°C 本地（最大值），±5°C 遠程（最大值） 拓撲:ADC，比較器，寄存器庫 輸出類型:2 線 SMBus? 輸出警報:無 輸出風扇:無 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-8 供應商設備封裝:SOT-23-8 包裝:Digi-Reel® 其它名稱:296-22675-6 |
| ADM1021AARQ-REEL7 | 功能描述:IC SENSOR TEMP DUAL3/5.5V 16QSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 熱管理 系列:- 標準包裝:1 系列:- 功能:溫度監控系統（傳感器） 傳感器類型:內部和外部 感應溫度:-40°C ~ 125°C，外部傳感器 精確度:±2.5°C 本地（最大值），±5°C 遠程（最大值） 拓撲:ADC，比較器，寄存器庫 輸出類型:2 線 SMBus? 輸出警報:無 輸出風扇:無 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-8 供應商設備封裝:SOT-23-8 包裝:Digi-Reel® 其它名稱:296-22675-6 |
| ADM1021AARQZ | 功能描述:板上安裝溫度傳感器 PIN COMP TO ADM1021 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| ADM1021AARQZ-R | 功能描述:板上安裝溫度傳感器 PIN COMP TO ADM1021 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| ADM1021AARQZ-R7 | 功能描述:板上安裝溫度傳感器 PIN COMP TO ADM1021 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
發布緊急采購，3分鐘左右您將得到回復。