28
Datasheet
Electrical Specifications
NOTES:
1. Unless otherwise noted, all specifications in this table apply to all processor frequencies and cache sizes.
2. VIH is defined as the minimum voltage level at a receiving agent that will be interpreted as a logical high value.
3. VIL is defined as the maximum voltage level at a receiving agent that will be interpreted as a logical low value.
4. VIH and VOH may experience excursions above VCC. However, input signal drivers must comply with the signal
5. The VCC referred to in these specifications refers to instantaneous VCC.
6. VOL_MAX of 0.450 V is guaranteed when driving into a test load as indicated in Figure 4, with Rtt enabled. 7. Leakage to Vcc with Pin held at 300 mV.
8. Leakage to Vss with pin held at Vcc.
NOTES:.
1. Unless otherwise noted, all specifications in this table apply to all processor frequencies and cache sizes.
2. All outputs are open drain
3. TAP signal group must meet the system signal quality specification in
Section 3.4. The Vcc referred to in these specifications refers to instantaneous Vcc.
5. The maximum output current is based on maximum current handling capability of the buffer and is not
specified into the test load.
6. VOL_MAX of 0.300 V is guaranteed when driving a test load.
7. VHYS represents the amount of hysteresis, nominally centered about 1/2 Vcc, for all TAP inputs.
8. Leakage to Vcc with Pin held at 300 mV.
9. Leakage to Vss with pin held at Vcc.
Table 9. AGTL+ Signal Group DC Specifications
Symbol
Parameter
Min
Max
Unit
Notes
1,8
VIH
Input High Voltage
1.10 * GTLREF
VCC
V
2, 4, 5
VIL
Input Low Voltage
0.0
0.90 * GTLREF
V
3, 5
VOH
Output High Voltage
N/A
VCC
V4, 5
IOL
Output Low Current
N/A
50
mA
5
IHI
Pin Leakage High
N/A
100
A
8
ILO
Pin Leakage Low
N/A
500
A
7
RON
Buffer On Resistance
7
11
6
Table 10. PWRGOOD and TAP Signal Group DC Specifications
Symbol
Parameter
Min
Max
Unit
Notes 1,2
VHYS
Input Hysteresis
200
300
mV
7
VT+
Input Low to High
Threshold Voltage
1/2*(Vcc + VHYS_MIN)1/2*(Vcc + VHYS_MAX)V
4
VT-
Input High to Low
Threshold Voltage
1/2*(Vcc - VHYS_MAX)1/2*(Vcc - VHYS_MIN)V
4
VOH
Output High Voltage
N/A
VCC
V3,4
IOL
Output Low Current
40
mA
5,6
IHI
Pin Leakage High
N/A
100
A
9
ILO
Pin Leakage Low
N/A
500
A
8
RON
Buffer On Resistance
8.75
13.75