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參數(shù)資料
| 型號(hào)： | SI52144-A01AGM |
| 廠商： | Silicon Laboratories Inc |
| 文件頁數(shù)： | 3/22頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC CLK GENERATOR 100MHZ 24QFN |
| 特色產(chǎn)品： | PCI-Express |
| 標(biāo)準(zhǔn)包裝： | 92 |
| 系列： | PCI Express® (PCIe) |
| 類型： | 時(shí)鐘/頻率發(fā)生器，扇出緩沖器（分配），多路復(fù)用器 |
| PLL： | 是 |
| 主要目的： | PCI Express（PCIe） |
| 輸入： | 時(shí)鐘，晶體 |
| 輸出： | HCSL |
| 電路數(shù)： | 1 |
| 比率 - 輸入:輸出： | 1:4 |
| 差分 - 輸入:輸出： | 無/是 |
| 頻率 - 最大： | 100MHz |
| 電源電壓： | 3.135 V ~ 3.465 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 24-WFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 24-QFN（4x4） |
| 包裝： | 托盤 |
| 其它名稱： | 336-2158 SI52144A01A-GM SI52144A01AGM |
Si52144
Rev. 1.2
11
4. Control Registers
4.1. I2C Interface
To enhance the flexibility and function of the clock synthesizer, an I2C interface is provided. Through the Serial
Data Interface, various device functions, such as individual clock enablement. The registers associated with the
I2C Interface initialize to their default setting at power-up. The use of this interface is optional. Clock device register
changes are normally made at system initialization, if any are required. Power management functions can only be
programed in program mode and not in normal operation modes.
4.2. Data Protocol
The clock driver I2C protocol accepts byte write, byte read, block write, and block read operations from the
controller. For block write/read operation, access the bytes in sequential order from lowest to highest (most
significant bit first) with the ability to stop after any complete byte is transferred. For byte write and byte read
operations, the system controller can access individually indexed bytes.
The block write and block read protocol is outlined in Table 5 while Table 6 outlines byte write and byte read
protocol. The slave receiver address is 11010110 (D6h).
Table 5. Block Read and Block Write Protocol
Block Write Protocol
Block Read Protocol
Bit
Description
Bit
Description
1
Start
1
Start
8:2
Slave address—7 bits
8:2
Slave address—7 bits
9Write
9
Write
10
Acknowledge from slave
10
Acknowledge from slave
18:11
Command Code—8 bits
18:11
Command Code–8 bits
19
Acknowledge from slave
19
Acknowledge from slave
27:20
Byte Count—8 bits
20
Repeat start
28
Acknowledge from slave
27:21
Slave address—7 bits
36:29
Data byte 1–8 bits
28
Read = 1
37
Acknowledge from slave
29
Acknowledge from slave
45:38
Data byte 2–8 bits
37:30
Byte Count from slave—8 bits
46
Acknowledge from slave
38
Acknowledge
....
Data Byte/Slave Acknowledges
46:39
Data byte 1 from slave—8 bits
....
Data Byte N–8 bits
47
Acknowledge
....
Acknowledge from slave
55:48
Data byte 2 from slave—8 bits
....
Stop
56
Acknowledge
....
Data bytes from slave/Acknowledge
....
Data Byte N from slave—8 bits
....
NOT Acknowledge
....
Stop
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| Si52144A01A-GM | 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
| Si52144-A01AGMR | 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 PCIe family,4 output PCIe G3, 25MHz input RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
| Si52144-EVB | 功能描述:時(shí)鐘和定時(shí)器開發(fā)工具 4 PCIe GENERATOR RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Modules 類型:Clock Conditioners 工具用于評(píng)估:LMK04100B 頻率:122.8 MHz 工作電源電壓:3.3 V |
| Si52145A01A-GM | 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 4OUT PCIeG2+25MHzREF OUT FROM 25MHZ IN RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
| SI52146 | 制造商:SILABS 制造商全稱:SILABS 功能描述:PCI-EXPRESS GEN 1, GEN 2, & GEN 3 SIX OUTPUT CLOCK GENERATOR |
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