C9851 Datasheet, PDF (10/14 Pages) Cypress Semiconductor – Clock Generator for Pentium III Server and Workstation Applications

PRELIMINARY
C9851
Clock Generator for Pentium^III Server and Workstation Applications
Current Accuracy
Conditions
Configuration
Load
Iout VDD = nominal (3.30V) All combinations of M0, M1 Nominal test load for
and Rr shown in host Swing given configuration
Select Function Table 5, p. 8
Iout VDD = 3.30 +/- 5%
All combinations of M0, m1 Nominal test load for
and Rr shown in Host Swing given configuration
Select Function Table 5, p. 8
Note: Inom refers to the expected current based on the configuration of the device.
Min
-7% Inom
Max
+ 7% Inom
-12% Inom + 12% Inom
Buffer Characteristics for REF
Characteristic
Pull-Up Current Min
Pull-Up Current Max
Pull-Down Current Min
Pull-Down Current Max
3.3V Output Rise Edge Rate
3.3V Output Fall Edge Rate
Symbol Min Typ Max
IOH_min -12
-53
IOH_max -27
-92
IOL_min
9
27
IOL_max 26
Trh
0.5
79
- 2.0
Tfh
0.5 -
2.0
Units
mA
mA
mA
mA
V/nS
V/nS
Conditions
VOH=VDDmin-0.5V (2.64V)
VOH=VDDmin/2 (1.56V)
VOL=0.4V
VOL=VDDmin/2 (1.56V)
3.3V +/- 5% @ 0.4V – 2.4 V
3.3V +/- 5% @ 2.4V – 0.4 V
Buffer Characteristics for 3V66, Mref, Mref_b
Characteristic
Symbol Min Typ Max Units Conditions
Pull-Up Current Min
Pull-Up Current Max
Pull-Down Current Min
Pull-Down Current Max
3.3V Output Rise Edge Rate
IOH_min -11
IOH_max -30
IOL_min
9
IOL_max 28
Trh
1/1
-83 mA VOH=VDD-0.5V (2.64V)
-184 mA V OH=VDD/2 (1.56V)
38 mA VOL=0.4V
148 mA VOL=VDD/2 (1.56V)
- 4/1 V/nS 3.3V +/- 5% @ 0.4V – 2.4 V
3.3V Output Fall Edge Rate
Tfh
1/1 -
4/1 V/nS 3.3V +/- 5% @ 2.4V – 0.4 V
Cypress Semiconductor Corporation
525 Los Coches St.
Milpitas, CA 95035. Tel: [phone], Fax: [phone]
http://www.cypress.com
Document#: 38-07068 Rev. **
05/04/2001
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