+/+…when timing is critical
C9815C
Low EMI Clock Generator for Intel 133MHz/2DIMM Chipset Systems
Preliminary
AC Parameters
133 MHz Host
100 MHz Host
66 MHz Host
Symbol
Parameter
Units
Min
7.5
1.87
1.67
0.4
-
Max
8.0
-
Min
10.0
3.0
2.8
0.4
-
Max
10.5
-
Min
14.75
5.2
5.0
0.4
-
Max
15.25
-
TPeriod
THIGH
TLOW
Tr / Tf
CPU(0:2) period5,8
CPU(0:2) high time10
CPU(0:2) low time11
nS
nS
nS
nS
pS
pS
nS
nS
nS
nS
pS
pS
nS
nS
nS
nS
pS
nS
nS
nS
nS
pS
pS
nS
nS
nS
nS
pS
pS
nS
-
-
-
CPU(0:2) rise and fall times7
CPU0 to CPU Skew6,9
1.6
175
250
8.0
-
1.6
175
250
10.5
-
1.6
175
250
10.5
-
TSKEW
TCCJ
CPU(0:2) Cycle to Cycle Jitter6,9
SDRAM(0:7) and DCLK period5,6
SDRAM(0:7) and DCLK high time10
SDRAM(0:7) and DCLK low time11
SDRAM(0:7) and DCLK rise and fall times7
SDRAM(0:7) and DCLK Skew6,9
SDRAM(0:7), DCLK Cycle to Cycle Jitter6,9
IOAPIC(0:1) period5,6
-
-
-
TPeriod
THIGH
TLOW
Tr / Tf
7.5
1.87
1.67
0.4
-
10.0
3.0
2.8
0.4
-
10.0
3.0
2.8
0.4
-
-
-
-
1.6
250
250
-
1.6
250
250
-
1.6
250
250
-
TSKEW
TCCJ
-
-
-
TPeriod
THIGH
TLOW
Tr / Tf
30.0
12.0
12.0
0.4
-
30.0
12.0
12.0
0.4
-
30.0
12.0
12.0
0.4
-
IOAPIC(0:1) high time10
IOAPIC(0:1) low time11
IOAPIC(0:1) rise and fall times7
IOAPIC(0:1) Cycle to Cycle Jitter6,9
3V66-(0:2) period5,6
3V66-(0:2) high time10
3V66-(0:2) low time11
3V66-(0:2) rise and fall times7
(Any 3V66) to (any 3V66) Skew6,9
3V66-(0:2) Cycle to Cycle Jitter6,9
PCI(0:6) period5,6
PCI(0:6) period10
PCI(0:6) low time11
PCI(0:6) rise and fall times7
(Any PCI) to (Any PCI) Skew6,9
PCI(0:6) Cycle to Cycle Jitter6,9
-
-
-
-
N/S
1.6
500
16.0
-
-
1.6
500
16.0
-
1.6
500
16.0
-
TCCJ
TPeriod
THIGH
TLOW
Tr / Tf
15.0
5.25
5.05
0.5
-
15.0
5.25
5.05
0.5
-
15.0
5.25
5.05
0.5
-
-
-
-
2.0
175
500
-
2.0
175
500
-
2.0
175
500
-
TSKEW
TCCJ
-
-
-
TPeriod
THIGH
TLOW
Tr / Tf
30.0
12.0
12.0
0.5
-
30.0
12.0
12.0
0.5
-
30.0
12.0
12.0
0.5
-
-
-
-
-
-
-
2.0
500
500
2.0
500
500
2.0
500
500
TSKEW
TCCJ
-
-
-
TPeriod
DOT & USB period (conforms to +167ppm
max) 5,6
20.8299 20.8333 20.8299 20.8333 20.829 20.833
Tr / Tf
TCCJ
DOT & USB rise and fall times7
DOT & USB Cycle to Cycle Jitter6,9
1.0
-
4.0
1.0
-
4.0
1.0
-
4.0
nS
pS
500
500
500
INTERNATIONAL MICROCIRCUITS, INC. 525 LOS COCHES ST.,
MILPITAS, CA 95035, USA TEL: 408-263-6300, FAX 408-263-6571
http://www.imicorp.com
Rev 1.2
4/5/2000
Page 12 of 18
CYPRESS [ CYPRESS ]
