AC Timing Characteristics

The following notes apply to all parameters presented in this section:

1. Xtal Frequency = 14.31818 MHz

2. All units are in nanoseconds (ns).

3. Rise and fall time is between 0.8 and 2.0 VDC.

4. Output pin loading = 15pF

5. Duty cycle is measured at 1.4V.

6. Supply Voltage Range = 4.5 to 5.5 volts

7. Temperature Range = 0

°C to 70°C

SYMBOL

PARAMETER

MIN

MAX

NOTES

STROBE TIMING

Tpw

Tsu

Thd

Strobe Pulse Width

Setup Time Data to Strobe

Hold Time Data to Strobe

20

10

10

-

-

-

FOUT TIMING

Tr

Tf

-

-

Rise Time

Fall Time

Frequency Error

Maximum Frequency

-

-

3

3

0.5

135

Duty Cycle 40% min. to 60% max.

at 80 MHz

%

MHz

Note:

Pattern -004 has rising edges of CPUCLK and CPUCLK/2 matched to

± 2 ns.

STROBE

CPUSEL (0-3)

Tpw

Tsu

Thd

ICS2694

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