參數(shù)資料
型號: SL28541BZI
廠商: Silicon Laboratories Inc
文件頁數(shù): 23/31頁
文件大?。?/td> 0K
描述: IC CLOCK CK505 MOBILE 64TSSOP
標準包裝: 28
類型: 時鐘/頻率發(fā)生器
PLL:
主要目的: Intel CPU 服務器
輸入: 時鐘,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/是
頻率 - 最大: 400MHz
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: 64-TFSOP (0.240",6.10mm 寬)
供應商設備封裝: 64-TSSOP
包裝: 管件
SL28541
........................ DOC #: SP-AP-0063 (Rev. AA) Page 3 of 31
64 QFN Pin Definitions
Pin No.
Name
Type
Description
1
VSS_REF
GND
Ground for outputs.
2
XOUT
O, SE 14.318MHz Crystal output. (Float XOUT if using CLKIN)
3
XIN/CLKIN
I
14.318MHz Crystal input or 3.3V, 14.318MHz input clock signal.
4
VDD_REF
PWR
3.3V Power supply for outputs and also maintains SMBUS registers during
power-down.
5
REF0/FSC/TEST_SEL
I/O
3.3V tolerant input for CPU frequency selection/fixed 14.318MHz clock output.
Selects test mode if pulled to VIHFS_C when CKPWRGD is asserted HIGH. Refer
to DC Electrical Specifications table for VILFS_C, VIMFS_C, VIHFS_C specifications.
6
SMB_DATA
I/O
SMBus compatible SDATA.
7
SMB_CLK
I
SMBus compatible SCLOCK.
8
PCI0/OE#_0/2_A
I/O, SE 3.3V, 33MHz clock/3.3V OE# Input mappable via I2C to control either SRC0 or
SRC2. (Default PCI0, 33MHz clock)
9
VDD_PCI
PWR
3.3V Power supply for PCI PLL.
10
PCI1/OE#_1/4_A
I/O, SE 3.3V, 33MHz clock/3.3V OE# Input mappable via I2C to control either SRC1 or
SRC4. (Default PCI1, 33MHz clock)
11
PCI2/TME
I/O, SE 3.3V tolerance input for overclocking enable pin/3.3V, 33MHz clock.
(Refer to DC Electrical Specifications table for Vil_FS and Vih_FS specifications)
12
PCI3
O, SE, 33 MHz clock.
13
PCI4 / GCLK_SEL
I/O, SE 33 MHz clock output/3.3V-tolerant input for selecting graphic clock source on pin
13, 14, 17and 18
Sampled on CKPWRGD assertion
14
PCIF_0/ITP_EN
I/O, SE 3.3V LVTTL input to enable SRC8 or CPU2_ITP/33 MHz clock output. (sampled
on the CK_PWRGD assertion)
1 = CPU2_ITP, 0 = SRC8
15
VSS_PCI
GND
Ground for outputs.
16
VDD_48
PWR
3.3V Power supply for outputs and PLL.
17
USB_48/FSA
I/O
3.3V tolerant input for CPU frequency selection/fixed 3.3V, 48MHz clock output.
(Refer to DC Electrical Specifications table for Vil_FS and Vih_FS specifications)
18
VSS_48
GND
Ground for outputs.
19
VDD_IO
PWR
0.7V Power supply for outputs.
20
SRC0/DOT96
O, DIF 100MHz Differential serial reference clocks/Fixed 96MHz clock output.
(Selected via I2C default is SRC0)
21
SRC0#/DOT96#
O, DIF 100MHz Differential serial reference clocks/Fixed 96MHz clock output.
(Selected via I2C default is SRC0)
22
VSS_IO
GND
Ground for PLL2.
23
VDD_PLL3
PWR
3.3V Power supply for PLL3
24
SRC1/LCD100/27_NSS
O, DIF,
SE
True 100 MHz differential serial reference clock output/True 100 MHz LCD video
clock output / Non-spread 27-MHz video clock output.
Selected via GCLK_SEL at CKPWRGD assertion.
25
SRC1#/LCD100#27_SS
O, DIF,
SE
Complementary 100 MHz differential serial reference clock output/Complementary
100 MHz LCD video clock output /Spread 27 MHz video clock output.
Selected via GCLK_SEL at CKPWRGD assertion.
26
VSS_PLL3
GND
Ground for PLL3.
GCLK_SEL
Pin13
Pin14
Pin17
Pin 18
0
DOT96T DOT96C SRC1T/LCD_100T SRC1C/LCD_100C
1
SRCT0
SRCC0
27M_NSS
27M_SS
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