參數(shù)資料
型號(hào)： CY28405OC
廠商： CYPRESS SEMICONDUCTOR CORP
元件分類： XO, clock
英文描述： CK409-Compliant Clock Synthesizer
中文描述： 200.9 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48
封裝： SSOP-48
文件頁(yè)數(shù)： 2/19頁(yè)
文件大小： 259K
代理商： CY28405OC
CY28405
Document #: 38-07512 Rev. *B
Page 2 of 19
Pin Description
Pin No.
1, 2
1, 2, 7, 8, 9 FS_A, FS_B, FS_C,
FS_D, FS_E
4
XIN
Name
Type
O, SE
I
Description
REF(0:1)
Reference Clock
.
3.3V 14.318-MHz clock output.
3.3V LVTTL latched input for CPU frequency selection
.
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.
Crystal Connection
.
Connection for an external 14.318-MHz crystal
output.
CPU Clock Output.
Differential CPU clock outputs.
CPU Clock Output
.
Differential CPU clock outputs.
Do Not Connect.
66-MHz Clock Output.
3.3V 66-MHz clock from internal VCO.
48- or 66-MHz Clock Output
. 3.3V selectable through external SELVCH
strapping resistor and SMBus to be 66-MHz or 48-MHz. Default is 66-MHz.
0 = 66 MHz, 1 = 48 MHz
66-MHz Clock Output
. 3.3V 66-MHz clock from internal VCO. Reset or
Power-down Mode Select. Selects between RESET# output or PWRDWN#
input for the PWRDWN#/RESET# pin. Default is RESET#. 0 = PD#, 1 =
RESET
Free Running PCI Output
.
33-MHz clocks divided down from 3V66.
PCI Clock Output
.
33-MHz clocks divided down from 3V66.
5
XOUT
O, SE
39, 42, 45
38, 41, 44
36, 35
30, 29
25
CPUT(0:1,ITP)
CPUC(0:1,ITP)
DNC
3V66(0:1)
3V66_3/VCH/SELVCH
O, DIF
O, DIF
O, SE
I/O, SE
PD
26
3V66_2/MODE
I/O, SE
PU
7, 8, 9
12, 13, 14,
15, 18, 19
22
21
46
PCIF(0:2)
PCI(0:5)
O, SE
O, SE
USB_48
DOT_48
IREF
O, SE
O, SE
I
Fixed 48-MHz clock output
.
Fixed 48-MHz clock output
.
Current Reference
. A precision resistor is attached to this pin which is
connected to the internal current reference.
3.3V LVTTL input for Power-down# active LOW
. Watchdog Timeout
Reset Output
3.3V LVTTL input is a level sensitive strobe used to latch the FS[A:E]
input (active LOW)
.
SMBus compatible SDATA
.
SMBus compatible SCLOCK
.
3.3V Power supply for PLL
.
Ground for PLL
.
3.3V Power supply for outputs
.
20
RESET#/PD#
I/O, PU
33
VTT_PWRGD#
I
32
31
48
47
3, 10, 16,
24, 27, 34,
40
6, 11, 17,
23, 28, 37,
43
SDATA
SCLK
VDDA
VSSA
VDD(REF,PCI,48,3V66,C
PU,ITP)
I/O
I
PWR
GND
PWR
VSS(REF,PCI,48,3V66,
CPU,ITP)
GND
Ground for outputs
.
相關(guān)PDF資料
PDF描述
CY28405OCT Circular Connector; No. of Contacts:6; Series:; Body Material:Aluminum; Connecting Termination:Solder; Connector Shell Size:10; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:10-6
CY28405OXC Circular Connector; MIL SPEC:MIL-C-26482, Series I, Crimp; Body Material:Aluminum; Series:PT06; No. of Contacts:3; Connector Shell Size:8; Connecting Termination:Crimp; Circular Shell Style:Straight Plug; Body Style:Straight
CY28408 Clock Synthesizer with Differential CPU Outputs
CY28408ZC TV 19C 19#12 SKT RECP
CY28408ZCT Circular Connector; MIL SPEC:MIL-DTL-38999 Series III; Body Material:Metal; Series:TVS01; Number of Contacts:3; Connector Shell Size:9; Connecting Termination:Crimp; Circular Shell Style:Straight Receptacle; Body Style:Straight
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CY28405OC-2 制造商:SPECTRALINEAR 制造商全稱:SPECTRALINEAR 功能描述:Clock Synthesizer with Differential SRC and CPU Outputs
CY28405OC-2T 制造商:Rochester Electronics LLC 功能描述:FTG FOR INTEL 865 AND 875 CHIPSETS (CK409) - Bulk
CY28405OC-3 制造商:Rochester Electronics LLC 功能描述:CLOCK SYNTHESIZER WITH DIFFERENTIAL SRC & CPU OUT - Bulk
CY28405OC-3T 制造商:Rochester Electronics LLC 功能描述:CLOCK SYNTHESIZER WITH DIFFERENTIAL SRC & CPU OUT - Bulk
CY28405OCT 制造商:SPECTRALINEAR 制造商全稱:SPECTRALINEAR 功能描述:CK409-Compliant Clock Synthesizer
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