mcf5307cft90b Freescale Semiconductor, Inc, mcf5307cft90b Datasheet - Page 439

• Manufacturer Part Number: mcf5307cft90b
• Description: Mcf5307 Coldfire Integrated Microprocessor User
• Manufacturer: Freescale Semiconductor, Inc

Figure 20-1 shows timings for the parameters listed in Table 20-4.
Figure 20-2 shows PSTCLK timings for parameters listed in Table 20-4.
20.3 Input/Output AC Timing Specifications
Table 20-5 lists specifications for parameters shown in Figure 20-3 and Figure 20-4. Note
that inputs IRQ[7,5,3,1], BKPT, and AS are synchronized internally; that is, the logic level
is validated if the value does not change for two consecutive rising BCLKO edges. Setup
and hold times must be met only if recognition on a particular clock edge is required.
Note: Input and output AC timing specifications are measured to BCLKO with a 50-pF load capacitance
(not including pin capacitance).
B1
B2
B3
B4
Num
1
1
2
2
BCLKO
BCLKO
Valid to BCLKO rising (setup)
BCLKO rising to invalid (hold)
Valid to BCLKO falling (setup)
BCLKO falling to invalid (hold)
PSTCLK
Characteristic
Table 20-5. Input AC Timing Specification
Freescale Semiconductor, Inc.
For More Information On This Product,
C4
Chapter 20. Electrical Specifications
Figure 20-2. PSTCLK Timing
Figure 20-1. Clock Timing
C1
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C4
C8
C7
C6
Min
7.5
7.5
3
3
66 MHz
C8
C5
Input/Output AC Timing Specifications
Max
—
—
—
—
C6
C3
Min
5.5
5.5
2
2
90 MHz
C2
Max
—
—
—
—
Units
nS
nS
nS
nS
20-3