
COMMERCIALTEMPERATURERANGE
IDTCV146
PROGRAMMABLEFLEXPC CLOCKFORP4PROCESSOR
3
PIN DESCRIPTION
Pin Number
Name
Type
Description
1
PCI0
OUT
PCI clock
2
PCI1
OUT
PCI clock
3VDD_PCI
PWR
3.3V
4VSS_PCI
GND
5
PCI2
OUT
PCI clock
6
PCI3
OUT
PCI clock
7
PCI4
OUT
PCI clock
8
PCI5
OUT
PCI clock
9VSS_PCI
GND
10
VDD_PCI
PWR
3.3V
11
TEST_SEL/PCIF0
I/O
Test Select (sampled at VTT_PWRGD# assertion), see TEST_SEL table. PCI clock afterward, free
running.
12
ITP_EN/PCIF1
I/O
Pin38, 39, CPU_ITP/SRC6 select (sampled on VTT_PWRGD# assertion), HIGH = CPU_2PCI
clock. PCI clock afterward, running.
13
VDD48
PWR
3.3V
14
USB48 /FS_B
I/O
48MHz clock/ FS_B input
15
VSS48
GND
16
DOT96T
OUT
96MHz 0.7V current mode differential clock output
17
DOT96C
OUT
96MHz 0.7V current mode differential clock output
18
VTT_PWRGD#/PD
I N
3.3V LVTTL input is a level-sensitive strobe used to latch the FS_A, FS_B, FS_C, TEST_SEL and
ITP_EN inputs, VTT_PWRGD# is low assertion/ After VTT_PWRGD# assertion, becomes a real-time
input for asserting power down (active HIGH).
19
SRCT0
OUT
Differential Serial reference clock
20
SRCC0
OUT
Differential Serial reference clock
21
SRCT1
OUT
Differential Serial reference clock
22
SRCC1
OUT
Differential Serial reference clock
23
VDD_SRC
PWR
3.3V
24
VSS_SRC
GND
25
SRCT2
OUT
Differential Serial reference clock
26
SRCC2
OUT
Differential Serial reference clock
27
SRCT_SATA
OUT
SATA clock
28
SRCC_SATA
OUT
SATA clock
29
VDD_SRC
PWR
3.3V
30
SRCC3
OUT
Differential Serial reference clock
31
SRCT3
OUT
Differential Serial reference clock
32
SRCC4
OUT
Differential Serial reference clock
33
SRCT4
OUT
Differential Serial reference clock
34
VSS_SRC
GND
35
SRCC5
OUT
Differential Serial reference clock
36
SRCT5
OUT
Differential Serial reference clock
37
VDD_SRC
PWR
3.3V
38
CPUC2_ITP/ SRCC6
OUT
Selectable CPU or SRC differential clock output. ITP_EN=0 @ VTT_PWRGD# assertion = SRCC6.
39
CPUT2_ITP/ SRCT6
OUT
Selectable CPU or SRC differential clock output. ITP_EN=0 @ VTT_PWRGD# assertion = SRCT6.
40
VDD_A
PWR
3.3V
41
VSS_A
GND
42
IREF
OUT
Referencecurrentfordifferentialoutputbuffer