MPC8323ECVRADDC datasheet(36/80 Pages) FREESCALE

36 / 80 page

MPC8323E PowerQUICC™ II Pro Integrated Communications Processor Family Hardware Specifications, Rev. 0

Freescale Semiconductor

Timers

Figure 27 shows the PCI output AC timing conditions.

Figure 27. PCI Output AC Timing Measurement Condition

13 Timers

This section describes the DC and AC electrical specifications for the timers of the MPC8323E.

13.1

Timer DC Electrical Characteristics

Table 38 provides the DC electrical characteristics for the MPC8323E timer pins, including TIN, TOUT,

TGATE, and RTC_CLK.

13.2

Timer AC Timing Specifications

Table 39 provides the timer input and output AC timing specifications.

Table 38. Timer DC Electrical Characteristics

Characteristic

Symbol

Condition

Min

Max

Unit

Output high voltage

VOH

IOH = –6.0 mA

2.4

—

Output low voltage

VOL

IOL = 6.0 mA

—

0.5

Output low voltage

VOL

IOL = 3.2 mA

—

0.4

Input high voltage

VIH

—2.0

OVDD +0.3

Input low voltage

VIL

—

–0.3

0.8

Input current

IIN

0 V

≤ VIN ≤ OVDD

—

±5

μA

Table 39. Timer Input AC Timing Specifications1

Characteristic

Symbol2

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

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

CLK

Output Delay

tPCKHOV

High-Impedance

tPCKHOZ

Output

tPCKHOX

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