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C9835
Document #: 38-07303 Rev. **
Page 14 of 18
Output Buffer Characteristics
Table 8. CPU, IOAPIC
Parameter
Description
Conditions
Min.
Typ.
Max.
Units
IOH1
Pull-up Current
Vout =VDDC - 0.5V (or VDDI –0.5V)
–15
–31
–51
mA
IOH2
Pull-up Current
Vout = 1.2V
–26
–58
–101
mA
IOL1
Pull-down Current
Vout = 0.4V
12
24
40
mA
IOL2
Pull-down Current
Vout = 1.2V
27
56
93
mA
Z0
Output Impedance
13.5
45
Ω
Table 9. PCI, 3V66, VCH
Parameter
Description
Conditions
Min.
Typ.
Max.
Units
IOH1
Pull-up Current
Vout =VDD – 0.5V
–20
–25
–33
mA
IOH2
Pull-up Current
Vout = 1. 5V
–30
–54
–184
mA
IOL1
Pull-down Current
Vout = 0.4V
9.4
18
38
mA
IOL2
Pull-down Current
Vout = 1.5V
28
55
148
mA
Z0
Output Impedance
12
55
Ω
Table 10. 48M0(USB), 481(DOT), REF
Parameter
Description
Conditions
Min.
Typ.
Max.
Units
IOH1
Pull-up Current
Vout =VDD – 0.5V
–12
–16
–28
mA
IOH2
Pull-up Current
Vout = 1. 5V
–27
–43
–92
mA
IOL1
Pull-down Current
Vout = 0.4V
9
13
27
mA
IOL2
Pull-down Current
Vout = 1.5V
26
39
79
mA
Z0
Output Impedance
20
60
Ω
Table 11. SDRAM (VDD = VDDS = 3.3V ± 5%, VDDC = VDDI = 2.5V ± 5%, TA = 0°C to 70°C)
Parameter
Description
Conditions
Min.
Typ.
Max.
Units
IOH1
Pull-up Current
Vout =VDD – 0.5V
–28
–40
–60
mA
IOH2
Pull-up Current
Vout = 1. 5V
–67
–107
–184
mA
IOL1
Pull-down Current
Vout = 0.4V
23
34
53
mA
IOL2
Pull-down Current
Vout = 1.5V
64
98
159
mA
Z0
Output Impedance
10
24
Ω
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