MPC8378E datasheet(75/128 Pages) FREESCALE

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MPC8378E PowerQUICC II Pro Processor Hardware Specifications, Rev. 8

Freescale Semiconductor

16.2

Timers AC Timing Specifications

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

This figure provides the AC test load for the timers.

Figure 49. 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.

Table 60. Timers Input AC Timing Specifications1

Parameter

Symbol 2

Min

Unit

Timers inputs—minimum pulse width

tTIWID

Notes:

1. Input specifications are measured from the 50% level of the signal to the 50% level of the rising edge of CLKIN. Timings are

measured at the pin.

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

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

Table 61. 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

Output

Z0 = 50 Ω

OVDD/2

RL = 50 Ω

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