MPC8315E datasheet(75/112 Pages) FREESCALE

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MPC8315E PowerQUICC™ II Pro Processor Hardware Specifications, Rev. 0

Freescale Semiconductor

IPIC

19.2

GPIO AC Timing Specifications

Table 63 provides the GPIO input and output AC timing specifications.

Figure 55 provides the AC test load for the GPIO.

Figure 55. GPIO AC Test Load

20 IPIC

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

MPC8315E.

20.1

IPIC DC Electrical Characteristics

Table 64 provides the DC electrical characteristics for the external interrupt pins.

Table 63. GPIO Input AC Timing Specifications

Characteristic

Symbol 1

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.

Table 64. IPIC DC Electrical Characteristics

Characteristic

Symbol

Condition

Min

Max

Unit

Input high voltage

VIH

—

2.1

NVDD + 0.3

Input low voltage

VIL

—

–0.3

0.8

Input current

IIN

——

±5

μA

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

Output

Z0 = 50 Ω

NVDD/2

RL = 50 Ω

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