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| 型號： | AS8501-ASOT |
| 廠商： | ams |
| 文件頁數(shù)： | 19/41頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC CURRENT MEASURE SOLAR 16-SOIC |
| 標準包裝： | 1,500 |
| 類型： | 數(shù)據(jù)采集系統(tǒng)（DAS） |
| 輸入類型： | 模擬，數(shù)字 |
| 輸出類型： | 模擬，數(shù)字 |
| 接口： | 串行 |
| 電流 - 電源： | 5mA |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SOIC（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-SOIC |
| 包裝： | 帶卷 (TR) |
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AS8501 - Data Sheet
austriamicrosystems
Revision 1.1, 04-April-06
www.austriamicrosystems.com
Page 25 of 40
7.5.8
THR alarm (Wake-up) threshold register ( 17 bits )
Nr.
MR16 MR15 MR14 MR13 MR12
MR11 … MR1
MR0
NOTE
0
A/B
s
Msb
lsb
default
0
1
0
0 1)
Notes:
1) _
All measurements are performed in channel A therefore MR16 must be set to zero. When channel B is selected
no interrupt will be generated.
- The signed value is used. For positive THR values the ASSP will initiate an interrupt whenever the measured
value is bigger than the THR value. For negtive THR values the interrupt will be generated for a negative
result with an absolute value bigger than the absolute value of the THR register.
7.5.9
MSR measurement result register ( 18 bits )
Nr.
MR17
MR16
MR15
MR14
MR13
MR12
MR11 … MR1
MR0
NOTE
Overflow/un
derflow
A/B
S
msb
lsb
1)
Notes:
1)
- Result word length is 16 bits because of calibration accuracy
and to maintain all possible resolutions ( different setting ).
- A/B bit signifies which measurement was performed: the one defined in CRA or CRB:
MR16=0 -> A
MR16=1 -> B
- Overflow/underflow bit is set whenever the result after multiplication by calibration
constant is bigger than 32767 or smaller than –32767.
In Wake-up or Alarm mode the overflow/underflow always sets INTN signal to LO.
8
Digital interface description
The digital interface of the AS8501 consists of two input pins (CLK and SCLK) and two I/O pins (INTN and SDAT). The SCLK and SDAT pins
are used as universal serial data interface (SDI). SDI operates only if external clock signal (CLK) is running.
8.1
CLK
In all operating modes except the Wake-up mode this pin must be connected to 8 MHz clock signal. In the Wake-up mode (MWU) the CLK pin
must be connected to logic HI or float.
8.2
INTN
The INTN pin is used to signal various conditions to the microcontroller, depending on the operating mode.
application modes of the INTN pin
Mode
Signal
Direction
Purpose
Note
0
Load clock (internal)
Output
Indicates progress of the Zener-Zap load process
1)
1, 2,7
SDI clock disable
Output
Signals new result and suggests when to disable SCLK in
high-precision measurement phase
2)
3
idle / wake-up not
Output
Signals the wake-up condition
4
idle / alarm not
Output
Signals the alarm condition
5
PW1
Input
Shows the programming pulse width
6,8,9
Logic ‘0’
Output
No purpose
10
t12
Output
Test mode
10
t18
Output
Test mode
Notes:
1)
188 clock pulses are generated from the internal oscillator source during the loading time.
2)
In measurement modes (MMS and MMD) the INTN pin is used to synchronize the SDI bus operations (See Fig. 9).
The trailing edge of INTN signals the start of a new measurement.
ams
AG
Technical
content
still
valid
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相關(guān)代理商/技術(shù)參數(shù) |
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| AS8501-ASOU | 功能描述:IC DATA ACQ 16-SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 傳感器和探測器接口 系列:- 其它有關(guān)文件:Automotive Product Guide 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:74 系列:- 類型:觸控式傳感器 輸入類型:數(shù)字 輸出類型:數(shù)字 接口:JTAG，串行 電流 - 電源:100µA 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:20-TSSOP 包裝:管件 |
| AS8501T&R | 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:High precision voltage and current measurement sensor interface |
| AS8501TR | 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:High precision voltage and current measurement sensor interface |
| AS8501TUB | 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:High precision voltage and current measurement sensor interface |
| AS85049-32-1 | 制造商:GLENAIR 制造商全稱:Glenair, Inc. 功能描述:90° Adapter, Non-Environmental, RFI |
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