MPC8349ECVVALDB datasheet(49/87 Pages) FREESCALE

tên linh kiện	MPC8349ECVVALDB

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MPC8349EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 13

Freescale Semiconductor

Timers

Figure 34 provides the AC test load for PCI.

Figure 34. PCI AC Test Load

Figure 35 shows the PCI input AC timing diagram.

Figure 35. PCI Input AC Timing Diagram

Figure 36 shows the PCI output AC timing diagram.

Figure 36. PCI Output AC Timing Diagram

14 Timers

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

14.1

Timer DC Electrical Characteristics

Table 47 provides the DC electrical characteristics for the MPC8349EA timer pins, including TIN, TOUT,

TGATE, and RTC_CLK.

Table 47. Timer DC Electrical Characteristics

Parameter

Symbol

Condition

Min

Max

Unit

Input high voltage

VIH

—2.0

OVDD +0.3

Input low voltage

VIL

—–0.3

0.8

Input current

IIN

——

±5

μA

Output high voltage

VOH

IOH = –8.0 mA

2.4

—

Output

Z0 = 50 Ω

OVDD/2

RL = 50 Ω

tPCIVKH

CLK

Input

tPCIXKH

CLK

Output Delay

tPCKHOV

High-Impedance

tPCKHOZ

Output

tPCKHOX

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