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Revision 1.0

2.2

DC CHARACTERISTICS OF PINS, BY I/O BUFFER TYPES

The following tables summarize the DC characteristics of all device pins described in Section 1.2 on page 6. The character-

istics describe the general I/O buffer types defined in Table 1 on page 6. For exceptions, refer to Section 2.2.10 on page 24.

The DC characteristics of the LPC Interface meet the PCI Local Bus Specification (Rev 2.2 December 18, 1998) for 3.3V

DC signaling. The DC characteristics of the SMBus Interface meet the SMBus (Rev 1.1 Dec. 11, 1998) and SMBus (Rev.

2.0 Aug. 2000) specifications for on-board devices.

2.2.1

Input, CMOS Compatible with Schmitt Trigger

2.2.2

Input, PCI 3.3V

2.2.3

Input, SMBus Compatible

Symbol

Parameter

Conditions

Min

Max

Unit

Input High Voltage

1

2. Not tested. Guaranteed by design.

V

Input Low Voltage

−0.51

1.1

V

Input Hysteresis

3. Not tested. Guaranteed by characterization.

mV

Input Leakage Current

4. Maximum 10

µA for all pins together. Not tested. Guaranteed by characterization.

µA

Symbol

Parameter

Conditions

Min

Max

Unit

Input High Voltage

1

1. Not tested. Guaranteed by design.

V

Input Low Voltage

−0.51

V

2

2. Input leakage current includes the output leakage of the bidirectional buffers with TRI-STATE outputs.

Input Leakage Current

3. Maximum 10

µA for all pins together. Not tested. Guaranteed by characterization.

µA

Symbol

Parameter

Conditions

Min

Max

Unit

Input High Voltage

1.4

1. Not tested. Guaranteed by design.

V

Input Low Voltage

−0.51

0.8

V

2

2. Input leakage current includes the output leakage of the bidirectional buffers with TRI-STATE outputs.

Input Leakage Current

3. Maximum 10

µA for all pins together. Not tested. Guaranteed by characterization.

µA