參數(shù)資料
型號: CY28551LFXCT
廠商: Silicon Laboratories Inc
文件頁數(shù): 12/28頁
文件大?。?/td> 0K
描述: IC CLOCK INTEL/AMD SIS VIA 64QFN
標(biāo)準(zhǔn)包裝: 2,000
類型: 時鐘/頻率發(fā)生器
PLL:
主要目的: Intel CPU,AMD CPU
輸入: 晶體
輸出: HCSL,LVCMOS
電路數(shù): 1
比率 - 輸入:輸出: 1:23
差分 - 輸入:輸出: 無/是
頻率 - 最大: 400MHz
電源電壓: 3.135 V ~ 3.465 V
工作溫度: 0°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 64-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 64-QFN(9x9)
包裝: 帶卷 (TR)
CY28551
......................Document #: 001-05675 Rev. *C Page 2 of 28
Pin Description
Pin No.
Name
Type
Description
1
PCI6_F
O
Free running 33 MHz clock output.
Intel Type-3A output buffer
2
VDD48
PWR
3.3V power supply for outputs.
3
**SEL24_48#/24_4
8M
I/O, PD 3.3V tolerant input for 24 MHz, 48 MHz selection/24_48MHz clock output. Internal
150k pull down
1 = 24 MHz, 0 = 48 MHz
Intel Type-3A output buffer
4
**SEL1/48MHz
I/O, PD 3.3V tolerant input for output selection/48MHz clock output. Refer to Table 1 for
selection options
Internal 150k pull down
5
VSS48
GND
Ground for outputs
6
VDDDOT
PWR
3.3V Power supply for outputs
7,8
LINK0/DOT96T/SA
TAT
LINK1/DOT96C/SA
TAC
O,
SE/DiF
Link output for VIA and SIS, differential 96 MHz clock output and 100 MHz differential
clock. The output is selected by SEL[1:0]
9
VSSDOT
GND
Ground for outputs
10
VDDSATA
PWR
3.3V Power supply for outputs
11,12
PCIEX0[T/C]/SATA
[T/C]
O, DIF Differential SRC clock output/Differential SATA SRC clock output
Intel Type-SR output buffer
13
VSSSATA
GND
Ground for outputs
14,15
PCIEX[T/C]1
O, DIF 100 MHz Differential serial reference clock. Intel Type-SR output buffer
16
VSSPCIE
GND
Ground for outputs
17,18
PCIEX[T/C]2
O, DIF 100 MHz Differential serial reference clock. Intel Type-SR output buffer
19
VDDPCIE
PWR
3.3V power supply for outputs.
20,21
PCIEX[T/C]3
O, DIF 100 MHz Differential serial reference clock. Intel Type-SR output buffer
22
VSSPCIE
GND
Ground for outputs
23,24
PCIEX[T/C]4
O, DIF 100 MHz Differential serial reference clock. Intel Type-SR output buffer
25
VDDPCIE
PWR
3.3V power supply for outputs
26,27,28,29
PCIEX[T/C][5:6]
O, DIF 100 MHz Differential Serial reference clock. Intel Type-SR output buffer
30
VSSPCIE
GND
Ground for outputs
31,32
PCIEX[T/C]7
O, DIF 100 MHz Differential Serial reference clock. Intel Type-SR output buffer
33
VDDPCIE
PWR
3.3V power supply for outputs
34,35
PCIEXT8/CPU_ST
OP#
PCIEXC8/PCI_ST
OP#
I/O, DIF 3.3V-tolerant input for stopping PCI and SRC outputs/3.3V-tolerant input for
stopping CPU outputs/100-MHz Differential serial reference clocks.
The two multifunction pins are selected by MODE. Default PCIEX8
Intel Type-SR output buffer
36
VDDA
PWR
3.3V Power supply for PLL.
37
VSSA
GND
Ground for PLL.
38
**DOC2
I, PD
Dynamic Over Clocking pin
0 = normal, 1 = Frequency will be changed depend on DOC register. Internal 150k
pull-down.
39
VSSCPU
GND
Ground for outputs.
40,41
CPU[T/C]1
O, DIF Differential CPU clock output. Intel Type-SR output buffer.
42
VDDCPU
PWR
3.3V Power supply for outputs+
43, 44
CPU[T/C]0
O, DIF Differential CPU clock output. Intel Type-SR output buffer.
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