MPC8379E datasheet(65/117 Pages) FREESCALE

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MPC8379E PowerQUICC II Pro Processor Hardware Specifications, Rev. 8

Freescale Semiconductor

This figure provides the AC test load for the timers.

Figure 43. Timers AC Test Load

17 GPIO

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

17.1

GPIO DC Electrical Characteristics

This table provides the DC electrical characteristics for the device GPIO.

17.2

GPIO AC Timing Specifications

This table provides the GPIO input and output AC timing specifications.

Table 62. 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

≤ VIN ≤ OVDD

IIN

—± 30

μA

Table 63. GPIO Input AC Timing Specifications

Parameter

Symbol

Min

Unit

GPIO inputs—minimum pulse width

tPIWID

Notes:

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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