MPC8309EC datasheet(46/82 Pages) FREESCALE

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MPC8309 PowerQUICC II Pro Integrated Communications Processor Family Hardware Specifications, Rev. 0

Freescale Semiconductor

GPIO

18 GPIO

This section describes the DC and AC electrical specifications for the GPIO of the MPC8309.

18.1

GPIO DC Electrical Characteristics

Table 11 provides the DC electrical characteristics for the MPC8309 GPIO.

18.2

GPIO AC Timing Specifications

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

Figure 35 provides the AC test load for the GPIO.

Figure 35. GPIO AC Test Load

Table 47. GPIO DC Electrical Characteristics

Characteristic

Symbol

Condition

Min

Max

Unit

Notes

Output high voltage

VOH

IOH = –6.0 mA

2.4

—

Output low voltage

VOL

IOL = 6.0 mA

—

0.5

Output low voltage

VOL

IOL = 3.2 mA

—

0.4

Input high voltage

VIH

—2.0

OVDD +0.3

Input low voltage

VIL

—–0.3

0.8

—

Input current

IIN

0 V

V

IN OVDD

—

±5

A—

Note:

1. This specification applies when operating from 3.3-V supply.

Table 48. GPIO Input AC Timing Specifications1

Characteristic

Symbol2

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_CLK_IN.

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 

OVDD/2

RL = 50 

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