MPC8308VMAFDA datasheet(59/88 Pages) FREESCALE

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MPC8308 PowerQUICC II Pro Processor Hardware Specification, Rev. 1

Freescale Semiconductor

GPIO

17 GPIO

This section describes the DC and AC electrical specifications for the GPIO of MPC8308

17.1

GPIO DC Electrical Characteristics

Table 47 provides the DC electrical characteristics for the GPIO.

17.2

GPIO AC Timing Specifications

Table 48 provides the GPIO input and output AC timing specifications.

Figure 48 provides the AC test load for the GPIO.

Figure 48. GPIO AC Test Load

Table 47. GPIO DC Electrical Characteristic

Characteristic

Symbol

Condition

Min

Max

Unit

Output high voltage

VOH

IOH =–8.0 mA

2.4

—

Output low voltage

VOL

IOL = 8.0 mA

—

0.5

Output low voltage

VOL

IOL =3.2 mA

—

0.4

Input high voltage

VIH

—2.1

NVDD +0.3

Input low voltage

VIL

—

–0.3

0.8

Input current

IIN

≤ VIN ≤ NVDD

—

± 5

μA

Table 48. GPIO Input AC Timing Specifications

Characteristic

Symbol1

Min

Unit

GPIO inputs—minimum pulse width

tPIWID

Notes:

1. 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

NVDD/2

RL = 50 Ω

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