
COMMERCIALTEMPERATURERANGE
2
IDTCV137
PROGRAMMABLEFLEXPC CLOCKFORAMDK8PROCESSORATIRS480
PIN CONFIGURATION
SSOP/ TSSOP
TOP VIEW
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
VDD_REF
VSS_REF
REF0
REF2
VDD_PC1
PCI0
VSS_PCI
VDD_HTT
CPUC0
VDD_CPU
VSS_CPU
CPUT1
VDDA
VSSA
VSS_SRC
VDD_SRC
SRCT0
VDD_SRC
VSS_SRC
SRCT1
SRCC1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
XIN
XOUT
USB_48
VSS_48
VDD_48
SEL24/24_48#
NC
CLKREQ0#
SRCC7
VDD_SRC
RESET#
TURBO1
SRCC2
SRCC0
SRCT2
REF1
CPUC1
IREF
CLKREQ1#
SRCT7
CPUT0
SCL
SDA
VSS_SRC
VDD_SRC
SRCC6
SRCT6
SRCC5
SRCT5
SRCC4
SRCT4
SRCC3
SRCT3
HTT66
VSS_HTT
(1)
(2)
CPU AND SRC SPREAD SPECTRUM
MAGNITUDECONTROL
SMC[2:0]
%
000
OFF
001
- 0.25
010
- 0.5
011
- 0.75
100
±0.125
101
±0.25
110
±0.375
111
±0.5
NOTES:
1. Internal 130K
pull-down resistor.
2. Tristate at power on to be compatible with ATI pin definition.
PCI (BASED ON SRC = 100MHz)
PCIS[1:0]
PCI
00
33.33
01
36.36
10
40
11
30.77
SE SIGNAL STRENGTH SELECTION
Str[1:0]
Strength
00
0.6x
01
0.8x
10
1x
11
1.2x