mpc8309 Freescale Semiconductor, Inc, mpc8309 Datasheet - Page 45

• Manufacturer Part Number: mpc8309
• Description: Powerquicc Ii Pro Integrated Communications Processor Family Hardware Specifications
• Manufacturer: Freescale Semiconductor, Inc

17 Timers
This section describes the DC and AC electrical specifications for the timers of the MPC8309.
17.1
Table 45
TGATE, and RTC_PIT_CLK.
17.2
Table 46
Figure 34
Freescale Semiconductor
Output high voltage
Output low voltage
Output low voltage
Input high voltage
Input low voltage
Input current
Timers inputs—minimum pulse width
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.
2. Timer inputs and outputs are asynchronous to any visible clock. Timer outputs should be synchronized before use by any
Timings are measured at the pin.
external synchronous logic. Timer inputs are required to be valid for at least t
MPC8309 PowerQUICC II Pro Integrated Communications Processor Family Hardware Specifications, Rev. 0
provides the DC electrical characteristics for the MPC8309 timer pins, including TIN, TOUT,
provides the timer input and output AC timing specifications.
Timer DC Electrical Characteristics
Timer AC Timing Specifications
provides the AC test load for the timers.
Characteristic
Output
Table 46. Timer Input AC Timing Specifications
Characteristic
Table 45. Timer DC Electrical Characteristics
Figure 34. Timers AC Test Load
Z
0
Symbol
= 50 
V
V
V
V
V
I
OH
OL
IN
OL
IH
IL
0 V  V
I
OH
I
I
OL
OL
Condition
= –6.0 mA
= 3.2 mA
= 6.0 mA
IN
—
—
 OV
R
L
DD
= 50 
TIWID
ns to ensure proper operation.
Symbol
–0.3
Min
OV
2.4
2.0
—
—
—
1
t
TIWID
DD
/2
2
OV
DD
Max
0.5
0.4
0.8
±5
—
Min
20
+ 0.3
Unit
Unit
A
Timers
ns
V
V
V
V
V
45