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參數(shù)資料
| 型號(hào)： | CY28378OCT |
| 廠商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分類： | XO, clock |
| 英文描述： | FTG for Pentium 4 and Intel 845 Series Chipset |
| 中文描述： | 200.4 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
| 封裝： | SSOP-48 |
| 文件頁(yè)數(shù)： | 6/22頁(yè) |
| 文件大?。?/td> | 174K |
| 代理商： | CY28378OCT |
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CY28378
Document #: 38-07519 Rev. **
Page 6 of 22
Byte Configuration Map
Table 5. Byte Read and Byte Write Protocol
Byte Write Protocol
Bit
1
Start
2:8
Slave address – 7 bits
9
Write = 0
10
Acknowledge from slave
11:18
Command Code – 8 bits
'1xxxxxxx' stands for byte operation, bits[6:0] of
the command code represents the offset of the
byte to be accessed
19
Acknowledge from slave
20:27
Data byte from master – 8 bits
28
Acknowledge from slave
29
Stop
Byte Read Protocol
Description
Bit
1
2:8
9
10
11:18
Description
Start
Slave address – 7 bits
Write = 0
Acknowledge from slave
Command Code – 8 bits
'1xxxxxxx' stands for byte operation, bits[6:0] of
the command code represents the offset of the
byte to be accessed
Acknowledge from slave
Repeat start
Slave address – 7 bits
Read = 1
Acknowledge from slave
Data byte from slave – 8 bits
Not Acknowledge
Stop
19
20
21:27
28
29
30:37
38
39
Byte 0
Bit
@Pup
0
0
0
Name
Description
Bit 7
Bit 6
Bit 5
Spread Select2
Spread Select1
Spread Select0
‘000’ = OFF
‘001’ = +0.12, – 0.62%
‘010’ = +0.25, – 0.75%
‘011’ = +0.50, – 1.00%
‘100’ = ± 0.25%
‘101’ = +0.00, – 0.50%
‘110’ = ±0.5%
‘111’ = ±0.38%
SW Frequency selection bits. See
Table 2
.
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Byte 1
0
0
0
0
0
SEL4
SEL3
SEL2
SEL1
SEL0
Bit
@Pup
1
1
1
1
1
1
1
1
Name
Description
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
CPUT1, CPUC1
CPUT0, CPUC0
48MHz
24_48MHz
3V66_3
3V66_2
3V66_1
3V66_0
(Active/Inactive)
(Active/Inactive)
(Active/Inactive)
(Active/Inactive)
(Active/Inactive)
(Active/Inactive)
(Active/Inactive)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CY28378OXC | 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 Sys Clk Pentium 4 & Intel Brookdale 845 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 |
| CY28378OXCT | 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 Sys Clk Pentium 4 & Intel Brookdale 845 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 |
| CY28381 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:High-Performance SiS645DX/648DX/650/651 Intel Pentium 4 Clock Synthesizer |
| CY28381OC | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Cypress Semiconductor 功能描述: |
| CY28381OCT | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:High-Performance SiS645DX/648DX/650/651 Intel Pentium 4 Clock Synthesizer |
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