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Chapter 13: Specifications and Characteristics
Emulator Specifications and Characteristics
AC Electrical Specifications (64751-66508 and higher active probe board numbers) — Clock
Timing
Num.
Characteristic
System Frequency (See Note)
Crystal Frequency
On-Chip VCO System Frequency
On-Chip VCO Frequency Range
Crystal Oscillator Startup Time
1
CLKOUT Period
2,3
CLKOUT Pulse Width
4,5
CLKOUT Rise and Fall Times
480
Symbol
f
sys
f
XTAL
f
sys
f
VCO
t
rc
t
cyc
t
CW
t
Crf
NOTE: All internal registers retain data at 0 Hz.
MC68340
25.16 MHz
HP 64751
Min
Max
Min
dc
25.16
dc
25
50
25
0.13
25.16
0.13
0.1
50.3
0.1
—
20
—
40
—
40
19
—
19
—
4
—
Max
Unit
25.16
MHz
50
kHz
25.16
MHz
50.3
MHz
20
ms
—
ns
—
ns
4
ns
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