Freescale Semiconductor MPC830x PowerQUICC II Pro Processor Evaluation Kit MPC8309-KIT MPC8309-KIT Fiche De Données
Codes de produits
MPC8309-KIT
MPC8309 PowerQUICC II Pro Integrated Communications Processor Family Hardware Specifications, Rev. 2
Freescale Semiconductor
43
GPIO
18 GPIO
This section describes the DC and AC electrical specifications for the GPIO of the MPC8309.
18.1
GPIO DC electrical characteristics
The following table provides the DC electrical characteristics for the MPC8309 GPIO.
18.2
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 33. GPIO AC test load
Table 45. 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
—
2.0
OV
DD
+ 0.3
V
1
Input low voltage
V
IL
—
–0.3
0.8
V
—
Input current
I
IN
0 V
≤ V
IN
≤ OV
DD
— ±
5
μA
—
Note:
1. This specification applies when operating from 3.3-V supply.
Table 46. 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
Ω
OV
DD
/2
R
L
= 50
Ω