
Low EMI Clock Generator for Pentium II CPU Systems
with Power Management
Cypress Semiconductor Corporation
525 Los Coches St.
Milpitas, CA 95035. Tel: 408-263-6300, Fax: 408-263-6571
http://www.cypress.com
Document#: 38-07049 Rev. **
05/03/2001
Page 8 of 11
APPROVED PRODUCT
C9801
Buffer Characteristics for CPU(0:3)
Characteristic
Pull-Up Current Min
Pull-Up Current Max
Pull-Down Current Min
Pull-Down Current Max
Rise Time Min
Between 0.4 V and 2.0 V
Fall Time Max
Between 0.4 V and 2.0 V
Dynamic Output Impedance
Symbol
IOH
min
IOH
max
IOL
min
IOL
max
TR
min
Min
-32.2
-
35.3
-
0.4
Typ
Max
Units
mA
mA
mA
mA
Conditions
-
-
-
-
-
-
Vout = VDD/2V
Vout = VDD – 0.5V
Vout = VDD/2
Vout = 0.4 V
20 pF Load
-15.8
-
14.4
1.6
nS
TRF
max
0.4
-
1.6
nS
20 pF Load
Z
O
-
Ohms
VDD = VDDP = VDDF =VDDR =3.3V
±
5
%, VDDC, & VDDI =2.5V
±
5
%, TA = 0
°
C to +70
°
C
Buffer Characteristics for REF(1:3) and 48(1:2) MHz
Characteristic
Pull-Up Current Min
Pull-Up Current Max
Pull-Down Current Min
Pull-Down Current Max
Rise Time Min
Between 0.4 V and 2.4 V
Fall Time Max
Between 0.4 V and 2.4 V
Dynamic Output Impedance
Symbol
IOH
min
IOH
max
IOL
min
IOL
max
TR
min
Min
-17.7
-
21.3
-
1.0
Typ
Max
Units
mA
mA
mA
mA
Conditions
-
-
-
-
-
-
Vout = VDD/2V
Vout = VDD – 0.5V
Vout = VDD/2V
Vout = 0.4 V
20 pF Load
-6.1
-
5.9
4.0
nS
TF
max
1.0
-
4.0
nS
20 pF Load
Z
O
-
Ohms
VDD = VDDP = VDDF =VDDR =3.3V
±
5
%, VDDC, & VDDI =2.5V
±
5
%,, TA = 0
°
C to +70
°
C
Buffer Characteristics for PCICLK(0:7), 3V66 (0,7)
Characteristic
Symbol
Pull-Up Current Min
Pull-Up Current Max
Pull-Down Current Min
Pull-Down Current Max
Rise Time Min
Between 0.4 V and 2.4 V
Fall Time Max
Between 0.4 V and 2.4 V
Dynamic Output Impedance
VDD = VDDP = VDDF =VDDR =3.3V
±
5
%, VDDC, & VDDI =2.5V
±
5
%,, TA = 0oC to +70oC
Min
-41.6
-
44.1
-
0.5
Typ
Max
Units
mA
mA
mA
mA
Conditions
IOH
min
IOH
max
IOL
min
IOL
max
TR
min
-
-
-
-
-
-
Vout = VDD/2V
Vout = VDD – 0.5V
Vout = VDD/2V
Vout = 0.4 V
30 pF Load
-15.5
-
13.7
2.0
nS
TF
max
0.5
-
2.0
nS
30 pF Load
Z
O
-
Ohms