參數(shù)資料
型號(hào)： SL28548ALC-2T
元件分類(lèi)： 時(shí)鐘產(chǎn)生/分配
英文描述： PROC SPECIFIC CLOCK GENERATOR, QCC64
封裝： 9 X 9 MM, 0.50 MM PITCH, ROHS COMPLIANT, QFN-64
文件頁(yè)數(shù)： 23/32頁(yè)
文件大小： 685K
代理商： SL28548ALC-2T
SL28548-2
Rev 1.5 July 28, 2008
Page 3 of 32
8
PCI0 / CR#_A
I/O, SE 33 MHz Clock/3.3V Clock Request # Input
Mappable via I2C to control either SRC 0 or SRC 2. Default PCI0.
To configure this pin to serve as a Clock Request pin for either SRC pair 2 or pair
0 using the CR#_A_EN bit located in byte 5 bit 7, first disable PCI output (Hi-z) in
byte 2, bit 1.
0 = PCI0 enabled (default)
1= CR#_A enabled.
Byte 5, bit 6 controls whether CR#_A controls SRC0 or SRC2 pair
Byte 5, bit 6:
0 = CR#_A controls SRC0 pair (default)
1= CR#_A controls SRC2 pair
9
VDD_PCI
PWR
3.3V power supply for PCI PLL
10
PCI1 / CR#_B
I/O, SE 33 MHz Clock/3.3V Clock Request # Input
Mappable via I2C to control either SRC 1 or SRC 4. Default PCI1.
To configure this pin to serve as a Clock Request pin for either SRC pair 1 or pair
4 using the CR#_B_EN bit located in byte 5, bit 5, first disable PCI output (Hi-z) in
byte 2, bit 1.
0 = PCI1 enabled (default)
1= CR#_B enabled.
Byte 5, bit 4 controls whether CR#_B controls SRC1 or SRC4 pair
Byte 5, bit 4:
0 = CR#_B controls SRC1 pair (default)
1= CR#_B controls SRC4 pair
11
PCI2 / TME
I/O, SE 33 MHz Clock output/3.3V-tolerance input for enabling Trusted Mode
Sampled at CKPWRGD assertion:
0 = Normal mode, 1 = Trusted mode (no overclocking)
12
PCI3
O, SE 33 MHz Clock output
13
PCI4 / GCLK_SEL
I/O, SE 33 MHz Clock output/3.3V-tolerant input for selecting graphic clock source
on pin 20, 21, 24 and 25
Sampled on CKPWRGD assertion;
14
PCIF0 / ITP_EN
I/O, SE 33 MHz free running clock output/3.3V LVTTL input to enable SRC8 or
CPU2_ITP (sampled on the CKPWRGD 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
Fixed 48 MHz clock output/3.3V-tolerant input for CPU frequency selection
Refer to DC Electrical Specifications table for Vil_FS and Vih_FS specifications.
18
VSS_48
GND
Ground for outputs.
19
VDD_IO
PWR
3.3V-1.25V power supply for outputs
20
SRCT0 / DOT96T
O, DIF True 100 MHz Differential serial reference clocks/Fixed True 96 MHz clock
output. Selected via GCLK_SEL at CKPWRGD assertion
21
SRCC0 / DOT96C
O, DIF Complementary 100 MHz Differential serial reference clocks/Fixed
complement 96 MHz clock output.
Selected via GCLK_SEL at CKPWRGD assertion
22
VSS_IO
GND
Ground for outputs.
23
VDD_PLL3
PWR
3.3V Power supply for PLL3.
24
SRCT1 /
LCDT_100/27M_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.
QFN Pin Definitions (continued)
Pin No.
Name
Type
Description
GCLK_SEL
Pin 20
Pin 21
Pin 24
Pin 25
0
DOT96T DOT96C SRC1T/LCD_100T SRC1C/LCD_100C
1
SRCT0
SRCC0
27M_NSS
27M_SS
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SL28610BLC 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 AtomPoulsbo Handheld Embed.1.5V PCIe G1 RoHS:否 制造商:Silicon Labs 類(lèi)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
SL28610BLCT 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 AtomPoulsbo Handheld Embed.1.5V PCIe G1 RoHS:否 制造商:Silicon Labs 類(lèi)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
SL28610BLI 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 AtomPoulsbo Handheld Embed.1.5V PCIe G1 RoHS:否 制造商:Silicon Labs 類(lèi)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
SL28610BLIT 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 AtomPoulsbo Handheld Embed.1.5V PCIe G1 RoHS:否 制造商:Silicon Labs 類(lèi)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
SL28610BLITR 制造商:Silicon Laboratories Inc 功能描述:
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