Datasheet

MPC8306 PowerQUICC II Pro Integrated Communications Processor Family Hardware Specifications, Rev. 2
Freescale Semiconductor 41
GPIO
17 GPIO
This section describes the DC and AC electrical specifications for the GPIO of the MPC8306.
17.1 GPIO DC Electrical Characteristics
The following table provides the DC electrical characteristics for the MPC8306 GPIO.
17.2 GPIO AC Timing Specifications
The following table provides the GPIO input and output AC timing specifications.
The following figure provides the AC test load for the GPIO.
Figure 32. GPIO AC Test Load
Table 44. GPIO DC Electrical Characteristics
Characteristic Symbol Condition Min Max Unit Notes
Output high voltage V
OH
I
OH
= –6.0 mA 2.4 — V 1
Output low voltage V
OL
I
OL
= 6.0 mA — 0.5 V 1
Output low voltage V
OL
I
OL
= 3.2 mA — 0.4 V 1
Input high voltage V
IH
—2.0OV
DD
+0.3 V 1
Input low voltage V
IL
—–0.30.8V—
Input current I
IN
0 V V
IN
OV
DD
— ±5 A—
Note:
1. This specification applies when operating from 3.3-V supply.
Table 45. GPIO Input AC Timing Specifications
1
Characteristic Symbol
2
Min Unit
GPIO inputs—minimum pulse width t
PIWID
20 ns
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 t
PIWID
ns to ensure proper operation.
Output
Z
0
= 50 
OV
DD
/2
R
L
= 50 