MPC8544E datasheet(60/117 Pages) FREESCALE

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MPC8544E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 5

Freescale Semiconductor

GPIO

Figure 38 provides the AC test load for the I2C.

Figure 38. I2C AC Test Load

Figure 39 shows the AC timing diagram for the I2C bus.

Figure 39. I2C Bus AC Timing Diagram

14 GPIO

This section describes the DC and AC electrical specifications for the GPIO interface of the MPC8544E.

14.1

GPIO DC Electrical Characteristics

Table 53 provides the DC electrical characteristics for the GPIO interface.

Table 53. GPIO DC Electrical Characteristics

Parameter

Symbol

Min

Max

Unit

Notes

High-level input voltage

VIH

2OVDD + 0.3

—

Low-level input voltage

VIL

–0.3

0.8

—

Input current (VIN = 0 V or VIN = VDD)

IIN

—±5

μA1

High-level output voltage (OVDD = mn, IOH = –2 mA)

VOH

2.4

—

Low-level output voltage (OVDD = min, IOL = 2 mA)

VOL

—0.4

—

Note:

1. Note that the symbol VIN, in this case, represents the OVIN symbol referenced in Table 1 and Table 2.

Output

Z0 = 50 Ω

OVDD/2

RL = 50 Ω

SDA

SCL

tI2CF

tI2SXKL

tI2CL

tI2CH

tI2DXKL,tI2OXKL

tI2DVKH

tI2SXKL

tI2SVKH

tI2KHKL

tI2PVKH

tI2CR

tI2CF

MPC8544E 数据表(PDF) 60 Page - Freescale Semiconductor, Inc

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