Si570/Si571
Rev. 0.31
13
3.3. I2C Interface
The control interface to the Si570 is an I2C-compatible
2-wire bus for bidirectional communication. The bus
consists of a bidirectional serial data line (SDA) and a
serial clock input (SCL). Both lines must be connected
to the positive supply via an external pullup. Fast mode
operation is supported for transfer rates up to 400 kbps
as specified in the I2C-Bus Specification standard.
Figure 3 shows the command format for both read and
write access. Data is always sent MSB first. The timing
specifications and timing diagram for the I2C bus can be
found in the I2C-Bus Specification standard (fast mode
operation). The device I2C address is specified in the
part number.
Figure 3. I2C Command Format
AData
A
Data
P
A
1
Slave Address
S
A
Byte Address
A
0
Slave Address
S
1
From master to slave
From slave to master
A – Acknowledge (SDA LOW)
S – START condition
P – STOP condition
Write Command
Read Command
Address auto incremented after each data read or write
P
A
Data
A
Data
A
Byte Address
A
0
Slave Address
S
相关PDF资料
550ME614M400DGR VCXO, CLOCK, 614.4 MHz, LVPECL OUTPUT
550MH040M000DGR VCXO, CLOCK, 40 MHz, LVPECL OUTPUT
550MH166M628DGR VCXO, CLOCK, 166.628 MHz, LVPECL OUTPUT
550ND125M000DGR VCXO, CLOCK, 125 MHz, LVDS OUTPUT
550CJ153M600DGR VCXO, CLOCK, 153.6 MHz, CMOS OUTPUT
550EJ100M000DG VCXO, CLOCK, 100 MHz, LVPECL OUTPUT
550EK100M000DGR VCXO, CLOCK, 100 MHz, LVPECL OUTPUT
550GD050M000DGR VCXO, CLOCK, 50 MHz, CMOS OUTPUT
相关代理商/技术参数
571MDB000105DG 功能描述:VCXO振荡器 Prgramble VCXO 8pin 7mmx5mm RoHS:否 制造商:Fox 封装 / 箱体:5 mm x 3.2 mm 频率:19.2 Mhz 频率稳定性:2.5 PPM 输出格式: 封装:Reel 电源电压:3 V 端接类型:SMD/SMT 尺寸:3.2 mm W x 5 mm L x 1.5 mm H 最小工作温度:- 20 C 最大工作温度:+ 75 C
571MDB000105DGR 制造商:Silicon Laboratories Inc 功能描述:CNTRLD OSC 622.08MHZ VCXO LVPECL 8SMD - Tape and Reel
571MEA000107DG 制造商:Silicon Laboratories Inc 功能描述:OSCILLATOR - Trays
571MEA000122DG 制造商:Silicon Laboratories Inc 功能描述:CONTROLLED OSCILLATOR 1GHZ VCXO LVPECL 6-PIN SMD - Trays
571MEB000105DG 功能描述:VCXO振荡器 Prgramble VCXO 8pin 7mmx5mm RoHS:否 制造商:Fox 封装 / 箱体:5 mm x 3.2 mm 频率:19.2 Mhz 频率稳定性:2.5 PPM 输出格式: 封装:Reel 电源电压:3 V 端接类型:SMD/SMT 尺寸:3.2 mm W x 5 mm L x 1.5 mm H 最小工作温度:- 20 C 最大工作温度:+ 75 C
571MEB000105DGR 制造商:Silicon Laboratories Inc 功能描述:CNTRLD OSC 622.08MHZ VCXO LVPECL 8SMD - Tape and Reel
571MEB000852DG 制造商:Silicon Laboratories Inc 功能描述:OSCILLATOR - Trays
571MFB000325DG 功能描述:VCXO振荡器 PRGRMBL VCXO 8pin 7mm x 5mm RoHS:否 制造商:Fox 封装 / 箱体:5 mm x 3.2 mm 频率:19.2 Mhz 频率稳定性:2.5 PPM 输出格式: 封装:Reel 电源电压:3 V 端接类型:SMD/SMT 尺寸:3.2 mm W x 5 mm L x 1.5 mm H 最小工作温度:- 20 C 最大工作温度:+ 75 C