- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384896 > SA9903 (SAMES) Single Phase Power / Energy IC with SPI Interface PDF資料下載
參數(shù)資料
| 型號： | SA9903 |
| 廠商： | SAMES |
| 元件分類： | 電能質(zhì)量分析儀 |
| 英文描述： | Single Phase Power / Energy IC with SPI Interface |
| 中文描述： | 單相功率/能量芯片，SPI接口 |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 120K |
| 代理商： | SA9903 |
the register being accessed. When CS is HIGH, data on pin DI
is clocked into the SA9903B on the rising edge of SCK. Figure
5 shows the data clocked into DI comprising of 1 1 0 A5 A4 A3
A2 A1 A0.
Address locations A5 and A4 are included for compatibility with
future developments.
Registers may be read individually and in any order. After a
register has been read, the contents of the next register value
will be shifted out on the DO pin with every SCK clock cycle.
Data output on DO will continue until CS is inactive.
The 9 bits needed for register addressing can be padded with
leading zeros when the micro-controller requires a 8 bit SPI
word length. The following sequence is valid:
0000 0001 10A5A4 A3A2A1A0
DATA FORMAT
Figure 5 shows the SPI waveforms. After the least significant
digit of the address has been entered on the rising edge of
SCK, the output DO goes low with the falling edge of SCK.
Each subsequent falling edge transition on the SCK pin will
validate the next data bit on the DO pin.
The content of each register consists of 24 bits of data. The
MSB is shifted out first.
Figure 6: SPI Timing diagrams with timing information
Figure 5: SPI waveforms
t1
t5
t3
SCK
DI
DO
CS
DR-01545
t4
t2
1
1
A5
A0
A1
A2
A3
A4
0
D23
D22
D21
D1
D0
D23
D22
D1
D0
DO
DI
SCK
CS
Read command
Register address
Register Data
Next data register
High impedance
0
Parameter
t1
t3
t4
t2
t5
Max
1.160μs
Min
625ns
625ns
625ns
20ns
625ns
Description
SCK rising edge to DO valid
SCK min high time
SCK min low time
Setup time for DI and CS
before the rising edge of SCK
DI hold time
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SA9903BPA | Single Phase Power / Energy IC with SPI Interface |
| SA9903BSA | surface mount silicon Zener diodes |
| SA9903B | Single Phase Power / Energy IC with SPI Interface |
| SB29003 | High Voltage Transistor |
| SB80C188-12 | CMOS High-Integration 16-Bit Microprocessors |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SA9903B | 制造商:SAMES 制造商全稱:SAMES 功能描述:Single Phase Power / Energy IC with SPI Interface |
| SA9903BPA | 制造商:SAMES 制造商全稱:SAMES 功能描述:Single Phase Power / Energy IC with SPI Interface |
| SA9903BSA | 制造商:SAMES 制造商全稱:SAMES 功能描述:Single Phase Power / Energy IC with SPI Interface |
| SA9904A | 制造商:SAMES 制造商全稱:SAMES 功能描述:Three Phase Power / Energy IC with SPI Interface |
| SA9904B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Three Phase Power / Energy IC with SPI Interface |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。