ICS9248-192
Frequency Timing Generator for Transmeta Systems
GNDREF
X1
X2
PD#
PCICLK0
PCICLK1
PCICLK2
GNDPCI
VDDPCI
PCICLK3
PCICLK4
PCICLK5
SDATA
SCLK
Output Features:
• 1CPU(2.5V or 3.3V selectable) up to 66.6MHz &
overclocking of 66MHz.
•
•
•
•
6 PCI (3.3V) @ 33.3MHz (all are free running
selectable).
1 REF (3.3V) at 14.318MHz.
1 48MHz (3.3V).
1 24_48MHz selectable output.
Features:
• Supports Spread Spectrum modulation for CPU and
PCI clocks, default -0.4 downspread.
• Efficient Power management scheme through stop
clocks and power down modes.
• Uses external 14.318MHz crystal, no external load
cap required for CL=18pF crystal.
• 28-pin TSSOP package, 4.40mm (173mil).
1
2
3
4
5
6
7
8
9
10
11
12
13
14
ICS9248-192
Pin Configuration
Recommended Application:
Transmeta
28
27
26
25
24
23
22
21
20
19
18
17
16
15
28-Pin TSSOP
Skew Characteristics:
• CPU – CPU
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