參數(shù)資料
型號(hào)： CY28323OXCT
廠商： Silicon Laboratories Inc
文件頁(yè)數(shù)： 12/21頁(yè)
文件大小： 0K
描述： IC CLOCK BROOKDALE GPENT4 48SSOP
標(biāo)準(zhǔn)包裝： 1,000
類型： 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： 248MHz
電源電壓： 3.135 V ~ 3.465 V
工作溫度： 0°C ~ 70°C
安裝類型： 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)
CY28323PVC
... Document #: 38-07004 Rev. *B Page Page 2 of 21 of 21
Pin Definitions
Pin Name
Pin No.
Pin
Type
Pin Description
X1
3
I
Crystal Connection or External Reference Frequency Input: This pin has dual
functions. It can be used as an external 14.318-MHz crystal connection or as an
external reference frequency input.
X2
4
O
Crystal Connection: Connection for an external 14.318-MHz crystal. If using an
external reference, this pin must be left unconnected.
REF0/MULTSEL0
48
I/O
Reference Clock 0/Current Multiplier Selection 0: 3.3V 14.318-MHz clock
output. This pin also serves as a power-on strap option to determine the current
multiplier for the CPU clock outputs. The MULTSEL1:0 definitions are as follows:
MULTSEL1:0
00 = Ioh is 4 x IREF
01 = Ioh is 5 x IREF
10 = Ioh is 6 x IREF
11 = Ioh is 7 x IREF
REF1/MULTSEL1
1
I/O
Reference Clock 1/Current Multiplier Selection 1: 3.3V 14.318-MHz clock
output. This pin also serves as a power-on strap option to determine the current
multiplier for the CPU clock outputs. The MULTSEL1:0 definitions are as follows:
MULTSEL1:0
00 = Ioh is 4 x IREF
01 = Ioh is 5 x IREF
10 = Ioh is 6 x IREF
11 = Ioh is 7 x IREF
CPU0:1, CPU0:1#
41, 38, 40,
37
O
CPU Clock Outputs: Frequency is set by the FS0:4 inputs or through serial input
interface.
CPU_ITP,
CPU_ITP#
44, 45
I/O
CPU Clock Output for ITP: Frequency is set by the FS0:4 inputs or through
serial input interface.
3V66_0:3
31, 30, 28,
27
O
66-MHz Clock Outputs: 3.3V fixed 66-MHz clock.
PCI_F0/FS2
6
I/O
Free-running PCI Output 0/Frequency Select 2: 3.3V free-running PCI output.
This pin also serves as a power-on strap option to determine device operating
frequency as described in the Frequency Selection Table.
PCI_F1/FS3
7
I/O
Free-running PCI Output 1/Frequency Select 3: 3.3V free-running PCI output.
This pin also serves as a power-on strap option to determine device operating
frequency as described in the Table 4.
PCI_F2
8
I/O
Free-running PCI Output 2: 3.3V free-running PCI output.
PCI0/FS4
10
I/O
PCI Output 0/Frequency Select 4: 3.3V PCI output. This pin also serves as a
power-on strap option to determine device operating frequency as described in
PCI1:6
11, 12, 14,
15, 16, 17
O
PCI Clock Output 1 to 6: 3.3V PCI clock outputs.
48MHz/FS0
22
I/O
48-MHz Output/Frequency Select 0: 3.3V fixed 48-MHz, non-spread spectrum
output. This pin also serves as a power-on strap option to determine device
operating frequency as described in Table 4.
This output will be used as the reference clock for USB host controller in Intel 845
(Brookdale) platforms. For Intel Brookdale - G platforms, this output will be used
as the VCH reference clock.
24_48MHz/FS1
23
I/O
24- or 48-MHz Output/Frequency Select 1: 3.3V fixed 24-MHz or 48-MHz
non-spread spectrum output. This pin also serves as a power-on strap option to
determine device operating frequency as described in Table 4.
This output will be used as the reference clock for SIO devices in Intel 845
(Brookdale) platforms. For Intel Brookdale - G platforms, this output will be used
as the reference clock for both USB host controller and SIO devices. We
recommend system designer to configure this output as 48 MHz and “HIGH
Drive” by setting Byte [5], Bit [0] and Byte [9], Bit [7], respectively.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CY28323PVC 制造商:Rochester Electronics LLC 功能描述:- Bulk
CY28324 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:FTG for Intel Pentium 4 CPU and Chipsets
CY28324_02 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:FTG for Intel㈢ Pentium㈢ 4 CPU and Chipsets
CY28324PVC 制造商:Cypress Semiconductor 功能描述:PLL Frequency Generator Dual 48-Pin SSOP 制造商:Rochester Electronics LLC 功能描述:- Bulk
CY28324PVCT 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel
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