參數(shù)資料
型號(hào)： CY28447LFXCT
廠商： Silicon Laboratories Inc
文件頁(yè)數(shù)： 20/22頁(yè)
文件大小： 0K
描述： IC CLOCK CALISTOGA CK410M 72QFN
標(biāo)準(zhǔn)包裝： 2,000
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： LVTTL，晶體
輸出： HCSL，LVCMOS
電路數(shù)： 1
比率 - 輸入:輸出： 3:21
差分 - 輸入:輸出： 無(wú)/是
頻率 - 最大： 200MHz
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： 72-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 72-QFN（10x10）
包裝： 帶卷 (TR)
CY28447
........................ Document #: 38-07724 Rev *C Page 7 of 22
1
0
CPU[T/C]1
CPU[T/C]1 PWRDWN Drive Mode
0 = Driven when PD asserted,1 = Tri-state when PD asserted
0
CPU[T/C]0
CPU[T/C]0 PWRDWN Drive Mode
0 = Driven when PD asserted,1 = Tri-state when PD asserted
Byte 6: Control Register 6
Bit
@Pup
Name
Description
7
0
TEST_SEL
REF/N or Tri-state Select
0 = Tri-state, 1 = REF/N Clock
6
0
TEST_MODE
Test Clock Mode Entry Control
0 = Normal operation, 1 = REF/N or Tri-state mode,
5
1
REF1
REF1 Output Drive Strength
0 = Low, 1 = High
4
1
REF0
REF0 Output Drive Strength
0 = Low, 1 = High
3
1
PCI, PCIF and SRC clock
outputs except those set
to free running
SW PCI_STP Function
0=SW PCI_STP assert, 1= SW PCI_STP deassert
When this bit is set to 0, all STOPPABLE PCI, PCIF and SRC outputs will
be stopped in a synchronous manner with no short pulses.
When this bit is set to 1, all STOPPED PCI, PCIF and SRC outputs will
resume in a synchronous manner with no short pulses.
2
HW
FSC
FSC Reflects the value of the FSC pin sampled on power up
0 = FSC was low during VTT_PWRGD# assertion
1
HW
FSB
FSB Reflects the value of the FSB pin sampled on power up
0 = FSB was low during VTT_PWRGD# assertion
0
HW
FSA
FSA Reflects the value of the FSA pin sampled on power up
0 = FSA was low during VTT_PWRGD# assertion
Byte 7: Vendor ID
Bit
@Pup
Name
Description
7
0
Revision Code Bit 3
6
0
Revision Code Bit 2
5
0
Revision Code Bit 1
4
1
Revision Code Bit 0
3
1
Vendor ID Bit 3
2
0
Vendor ID Bit 2
1
0
Vendor ID Bit 1
0
Vendor ID Bit 0
Byte 8: Control Register 8
Bit
@Pup
Name
Description
7
0
RESERVED
RESERVED, Set = 0
6
0
RESERVED
RESERVED, Set = 0
5
0
RESERVED
RESERVED, Set = 0
4
0
RESERVED
RESERVED, Set = 0
3
0
RESERVED
RESERVED, Set = 0
2
1
USB_48M
USB_48MHz Output Drive Strength
0= Low, 1= High
1
RESERVED
RESERVED, Set = 1
0
1
PCIF0
PCIF0 Output Drive Strength
0 = Low, 1 = High
Byte 5: Control Register 5 (continued)
Bit
@Pup
Name
Description
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參數(shù)描述
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