ICS9248-64 Datasheet, PDF (3/15 Pages) Integrated Circuit Systems – AMD-K7TM System Clock Chip

Frequency Select
TEST# FS1
0
0
0
0
0
1
0
1
1
0
1
0
1
1
1
1
FS0
CPU,
SDRAM
PCI
0
Hi-Z
Hi-Z
1
50.0
25.0
0
66.6
33.3
1 TCLK/2 TCLK/6
0
90.0
30.0
1 133.3 33.3
0 120.0 30.0
1 100.0 33.3
AGP 48MHz
Hi-Z
50.0
66.6
TCLK/3
60.0
66.6
60.0
66.6
Hi-Z
48
48
TCLK/4
48
48
48
48
REF
Hi-Z
14.318
14.318
TCLK
14.318
14.318
14.318
14.318
Comments
Tri-state
Test mode(1)
Notes:
1. TCLK is a test clock driven on the X1 (crystal in pin) input during test mode.
ICS9248-64
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