MPC8314ECVRAGDA datasheet(67/101 Pages) FREESCALE

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MPC8314E PowerQUICC II Pro Processor Hardware Specifications, Rev. 2

Freescale Semiconductor

GPIO

This figure provides the AC test load for the Timers.

Figure 52. Timers AC Test Load

18 GPIO

This section describes the DC and AC electrical specifications for the GPIO of the MPC8314E.

18.1

GPIO DC Electrical Characteristics

This table provides the DC electrical characteristics for the GPIO.

18.2

GPIO AC Timing Specifications

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

Note:

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

external synchronous logic. Timers input are required to be valid for at least tTIWID ns to ensure proper operation.

Table 58. GPIO DC Electrical Characteristics

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

0 V

V

IN NVDD

—

± 5

A

Table 59. GPIO Input AC Timing Specifications

Characteristic

Symbol 1

Min

Unit

GPIO inputs—minimum pulse width

tPIWID

Note:

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.

Table 57. Timers Input AC Timing Specifications

Characteristic

Symbol 1

Min

Unit

Output

Z0 = 50 

NVDD/2

RL = 50 

MPC8314ECVRAGDA 数据表(PDF) 67 Page - Freescale Semiconductor, Inc

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