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HD151TS207SS
Pin Descriptions
Pin name
No.
VSS_A
54
VSS_CPU
45
VSS_IREF
53
VSS_SRC
39
VSS_3V66
25
VSS_PCI
11, 17
VSS_REF
6
VSS_48
33
VDD_A
55
VDD_CPU
42, 48
VDD_SRC
36
VDD_3V66
24
VDD_PCI
10, 16
VDD_REF
3
VDD_48
34
REF0
1
REF1
2
XTAL_IN
4
XTAL_OUT
5
FS2/PCIF_[0:1]
7,8
PCIF_2
9
**MODE/PCI_0
12
PCI_[1:3]
13,14,
15
**SEL100_200/
18
PCI_4
**SEL33_25/PCI_5 19
PCI_6
20
Note:
(*):
Those pins are 150 k internal pulled-UP.
(**):
Those pins are 150 k internal pulled-DOWN.
Rev.1.00, Apr.25.2003, page 4 of 38
Type
Description
Ground
Ground for PLL
Ground for outputs
Ground for current reference
Ground for outputs
Power
3.3 V Power Supply for PLL
3.3 V Power Supply for outputs
OUTPUT
3.3 V 14.318 MHz reference clock.
INPUT
14.318 MHz XTAL input.
OUTPUT
14.318 MHz XTAL output.
Don't connect when an external clock is applied at XTAL_IN.
INPUT/
Frequency select latch input pin.
OUTPUT
/Free running PCI clock 3.3 V output.
OUTPUT
Free running PCI clock 3.3 V output.
INPUT/
Function select latch input pin for pin 22,
OUTPUT
1 = Reset#, 0 = clock output.
/PCI clock 3.3 V output.
OUTPUT
PCI clock 3.3 V outputs.
INPUT/
Latched select input for SRC output.
OUTPUT
1 = 200 MHz, 0 = 100 MHz
/PCI clock 3.3 V output.
INPUT/
Latched select input for PCI5 output.
OUTPUT
1 = 25 MHz, 0 = 33 MHz
/PCI clock 3.3 V output.
OUTPUT
PCI clock 3.3 V outputs.
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