cy28rs680 SpectraLinear Inc, cy28rs680 Datasheet - Page 3

• Manufacturer Part Number: cy28rs680
• Description: Clock Generator For Ati Rs5xx/6xx Chipsets
• Manufacturer: SpectraLinear Inc

Rev 1.0, March 28, 2007
Pin Descriptions
51, 52, 55, 56
62, 63, 64
Pin No.
53
54
57
58
59
60
61
CPUT/C[1:0]
CLKREQ#A
VDD_CPU
VSS_CPU
VDD_HTT
VSS_HTT
REF[2:0]
HTT66
(continued)
Name
NC
O, DIF Differential CPU clock output.
O, SE 66 MHz clock output. Intel Type-5 buffer.
O, SE 14.318 MHz REF clock output. Intel Type-5 buffer.
I, SE,
GND
PWR 3.3V power supply for CPU outputs
PWR Ground for HyperTransport outputs
PWR 3.3V power supply for HyperTransport outputs
Type
PU
I
Intel Type-SR buffer
Ground for CPU outputs
Output Enable control for SRCT/C. Output enable control required by Minicard
specification. This pin has an internal pull up.
0 = Selected SRC output is enabled. 1 = Selected SRC output is disabled.
No Connect
Description
CY28RS680
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