MPC8377E datasheet(75/126 Pages) FREESCALE

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MPC8377E PowerQUICC II Pro Processor Hardware Specifications, Rev. 4

Freescale Semiconductor

GPIO

18 GPIO

This section describes the DC and AC electrical specifications for the GPIO of the MPC8377E.

18.1

GPIO DC Electrical Characteristics

Table 65 provides the DC electrical characteristics for the device GPIO.

18.2

GPIO AC Timing Specifications

Table 66 provides the GPIO input and output AC timing specifications.

Figure 47 provides the AC test load for the GPIO.

Figure 47. GPIO AC Test Load

19 IPIC

This section describes the DC and AC electrical specifications for the external interrupt pins of the

MPC8377E.

Table 65. GPIO DC Electrical Characteristics

This specification applies when operating at 3.3 V ± 165 mV supply.

Parameter

Condition

Symbol

Min

Max

Unit

Output high voltage

IOH = –6.0 mA

VOH

2.4

—

Output low voltage

IOL = 6.0 mA

VOL

—0.5

Output low voltage

IOL = 3.2 mA

VOL

—0.4

Input high voltage

—

VIH

2.0

OVDD +0.3

Input low voltage

—

VIL

–0.3

0.8

Input current

0 V

≤ V

IN ≤ OVDD

IIN

—± 30

μA

Table 66. GPIO Input AC Timing Specifications

Parameter

Symbol

Min

Unit

GPIO inputs—minimum pulse width

tPIWID

Note:

1. Input specifications are measured from the 50% level of the signal to the 50% level of the rising edge of SYS_CLKIN. Timings

are measured at the pin.

2. GPIO inputs and outputs are asynchronous to any visible clock. GPIO outputs should be synchronized before use by any

external synchronous logic. GPIO inputs are required to be valid for at least tPIWID ns to ensure proper operation.

Output

Z0 = 50 Ω

OVDD/2

RL = 50 Ω

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