12

TS68302

2117A–HIREL–11/02

Dynamic (Switching)

Characteristics

The limits and values given in this section apply over the full case temperature range -

55°C to +125°C or -40°C to +85°C depending on selection see “Ordering Information”

The INTERVAL numbers (NUM) refer to the timing diagrams. See Figure 6 to Figure 25.

The AC specifications presented consist of output delays, input setup and hold times,

and signal skew times. All signals are specified relative to an appropriate edge of the

clock (CLKO pin) and possibly to one or more other signals.

Figure 6. Clock Timing Diagram

Notes:

1. CLKO loading is 50 pF max.

2. CLKO skew from the rising and falling edges of EXTAL will not differ from each other more than 1 ns, if the EXTAL rise time

equals the EXTAL fall time.

1

5

5a

5a

4

3

2

VCIH = 4V

EXTAL

VCIL = 0.6V

CLKO

Table 7. AC Electrical Specifications - Clock Timing (see Figure 7)

Num.

Symbol

Parameter

Min

Max

Unit

f

Frequency of Operation

8

16.67

MHz

1t

cyc

Clock Period (EXTAL)

60

125

ns

2, 3

t

Clock Pulse Width (EXTAL)

25

62.5

ns

4, 5

Clock Rise and Fall Times (EXTAL)

5

ns

5a

t

CD

EXTAL to CLKO delay

(1)(2)

211

ns