PRELIMINARY
C9926
Low EMI Clock Generator for Intel 133MHz/ 2DIMM Chipset Systems
Output Buffer Characteristics
CPU and IOAPIC
Characteristic
Symbol Min
Typ
-31
-58
24
Max
-50
Units
mA
Conditions
Pull-Up Current
Pull-Up Current
Pull-Down Current
Pull-Down Current
IOH1
IOH2
IOL1
IOL2
-15
-26
12
Vout =VDDC - 0.5V (or VDDI - 0.5V)
Vout = 1.2V
-101
40
mA
mA
Vout = 0.4V
27
56
93
mA
Vout = 1.2V
PCI, 3V66 and DOT
Characteristic
Symbol Min
Typ
-25
-54
18
Max
Units
mA
Conditions
Pull-Up Current
IOH1
IOH2
IOL1
IOL2
-20
-30
9.4
28
-33
-184
38
Vout =VDD - 1.0V
Vout = 1.5V
Pull-Up Current
mA
Pull-Down Current
Pull-Down Current
mA
Vout = 0.4V
55
148
mA
Vout = 1.5V
USB and REF
Characteristic
Pull-Up Current
Pull-Up Current
Pull-Down Current
Pull-Down Current
Symbol
IOH1
Min
-12
-27
9
Typ
-20
-43
13
Max
Units
mA
Conditions
-30
-92
27
Vout =VDD - 1.0V
Vout = 1.5V
IOH2
mA
IOL1
mA
Vout = 0.4V
IOL2
26
39
79
mA
Vout = 1.5V
SDRAM
Characteristic
Pull-Up Current
Pull-Up Current
Pull-Down Current
Pull-Down Current
Symbol
IOH1
Min
-30
-68
23
Typ
-40
-110
34
Max
Units
mA
Conditions
-60
-188
53
Vout =VDDS - 1. 0V
Vout = 1.4V
IOH2
mA
IOL1
mA
Vout = 0.4V
IOL1
64
98
159
mA
Vout = 1.5V
VDD = VDDS = 3.3V ±5%, VDDC = VDDI = 2.5±5%, TA = 0 to 70ºC
Cypress Semiconductor Corporation
525 Los Coches St.
Document#: 38-07070 Rev. **
5/4/2001
Milpitas, CA 95035. Tel: 408-263-6300, Fax: 408-263-6571
http://www.cypress
Page 18 of 21
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