IDTCV109E View Datasheet(PDF) - Integrated Device Technology
Part Name
Description
Manufacturer
IDTCV109E Datasheet PDF : 21 Pages
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IDTCV109E
CLOCK GENERATOR FOR DESKTOP PC PLATFORMS
COMMERCIAL TEMPERATURE RANGE
PIN DESCRIPTION
Pin Number
Name
Type
1
FS1/REF0
I/O
2
FS0/REF1
I/O
3
VDD_REF
PWR
4
X1
IN
5
X2
OUT
6
VSS
GND
7
PCIF0
I/O
8
PCIF1
OUT
9
PCIF2
OUT
10
VDD_PCI
PWR
11
VSS
GND
12
PCI0
OUT
13
PCI1
OUT
14
PCI2
OUT
15
PCI3
OUT
16
PCI7
OUT
17
VDD_PCI
PWR
18
VSS
GND
19
PCI4
OUT
20
PCI5
OUT
21
PCI6
OUT
22
SEL24/24_48MHZ
I/O
23
48MHz0
OUT
24
VSS
25
VDD48
26
3V66_3/VCH
27
3V66_2
28
VDD_3V66
29
VSS
30
3V66_1
31
3V66_0
32
SCLK
33
SDATA
34
VTT_PWRGD/PD#
35
VDD_SRC
36
SRCC
37
SRCT
38
VSS
39
CPUC0
40
CPUT0
NOTES:
1. ~ 130KΩ internal pull-up.
2. ~ 130KΩ internal pull-down.
GND
PWR
OUT
OUT
PWR
GND
OUT
OUT
IN
I/O
IN
PWR
OUT
OUT
GND
OUT
OUT
Description
Frequency select latch input / 14.318MHz reference clock output(1)
Frequency select latch input / 14.318MHz reference clock output(1)
3.3V
Xtal input
Xtal output
GND
Frequency select latch input 3.3V input / PCI free running clock(2)
PCI free running clock
PCI free running clock
3.3V
GND
PCI clock
PCI clock
PCI clock
PCI clock
PCI clock
3.3V
GND
PCI clock
PCI clock
PCI clock
24MHz or 48MHz clock output. Frequency selected by SEL24 latch input. 1 = 24MHz, 0 = 48MHz,
also can be programmed through SMBus Byte 34.(2)
48MHz clock output. Phase is 180 different with 24_48 and VCH. Output drive stength can be doubled
through SM programming.
GND
3.3V
66MHz or 48MHz clock output. Selectable by SMBus. Power on is 66MHz.
66MHz clock output
3.3V
GND
66MHz clock output
66MHz clock output
SMBus clock(1)
SMBus data(1)
Used for power on latch, active HIGH after power on becomes power down control, active LOW.(1)
3.3V
SATA 0.7V current mode differential clock output
SATA 0.7V current mode differential clock output
GND
Hosts 0.7V current mode differential clock output
Hosts 0.7V current mode differential clock output
4
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