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參數(shù)資料
| 型號(hào)： | CY28378OXCT |
| 廠商： | Silicon Laboratories Inc |
| 文件頁(yè)數(shù)： | 19/21頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC CLOCK CK408/TITAN 845 48SSOP |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 類(lèi)型： | 時(shí)鐘/頻率發(fā)生器 |
| PLL： | 是 |
| 主要目的： | Intel CPU 服務(wù)器 |
| 輸入： | 晶體 |
| 輸出： | HCSL，LVCMOS |
| 電路數(shù)： | 1 |
| 比率 - 輸入:輸出： | 1:21 |
| 差分 - 輸入:輸出： | 無(wú)/是 |
| 頻率 - 最大： | 203MHz |
| 電源電壓： | 3.135 V ~ 3.465 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類(lèi)型： | 表面貼裝 |
| 封裝/外殼： | 48-BSSOP（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 48-SSOP |
| 包裝： | 帶卷 (TR) |
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CY28378
........................ Document #: 38-07519 Rev. ** Page 7 of 21
Byte 2
Bit
@pup
Name
Pin Description
Bit 7
0
Reserved
Bit 6
1
PCI6
(Active/Inactive)
Bit 5
1
PCI5
(Active/Inactive)
Bit 4
1
PCI4
(Active/Inactive)
Bit 3
1
PCI3
(Active/Inactive)
Bit 2
1
PCI2
(Active/Inactive)
Bit 1
1
PCI1
(Active/Inactive)
Bit 0
1
PCI0
(Active/Inactive)
Byte 3
Bit
@Pup
Name
Pin Description
Bit 7
1
PCI_F2
(Active/Inactive)
Bit 6
1
PCI_F1
(Active/Inactive)
Bit 5
1
PCI_F0
(Active/Inactive)
Bit 4
0
Reserved
Bit 3
1
CPU_ITP, CPU_ITP#
(Active/Inactive)
Bit 2
0
Reserved
Bit 1
1
REF1
(Active/Inactive)
Bit 0
1
REF0
(Active/Inactive)
Byte 4
Bit
@Pup
Name
Pin Description
Bit 7
0
MULTSEL_Override
This bit control the selection of IREF multiple.
0 = HW control; IREF multiplier is determined by MULTSEL[0:1] input pins
1 = SW control; IREF multiplier is determined by Byte[4], Bit[5:6].
Bit 6
HW
SW_MULTSEL1
IREF multiplier
00 = Ioh is 4 x IREF
01 = Ioh is 5 x IREF
10 = Ioh is 6 x IREF
11 = Ioh is 7 x IREF
Bit 5
HW
SW_MULTSEL0
Bit 4
0
Reserved
Bit 3
0
Reserved
Bit 2
0
Reserved
Bit 1
0
Reserved
Bit 0
0
Reserved
Vendor Test Mode (always program to 0)
Byte 5
Bit
@Pup
Name
Pin Description
Bit 7
HW
Latched FS4 input
Latched FS[4:0] inputs. These bits are read only.
Bit 6
HW
Latched FS3 input
Bit 5
HW
Latched FS2 input
Bit 4
HW
Latched FS1 input
Bit 3
HW
Latched FS0 input
Bit 2
0
FS_Override
0 = Select operating frequency by FS[4:0] input pins
1 = Select operating frequency by SEL[4:0] settings
Bit 1
0
SEL 3V66
0 = 48-MHz output on pin 27, 1 = 66-MHz output on pin 27
Bit 0
1
SEL 48MHZ
0 = 24-MHz,1 = 48-MHz
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