IA88C00
Data Sheet
Microcontroller
As of Production Version -01
AC Electrical Characteristics (20 MHz)
EPROM Read Cycle
No.
Symbol
Parameter
Address Valid to Read Data Required Valid
Min Max Notes†*
170
1
TdA(DR)
1
NOTES
1. WAIT states add 167 ns to these times.
†
*
All times are in nanoseconds and are for 12 MHz input frequency.
Timings are preliminary and subject to change.
Wait Timing
T1
T2
TWAIT
T3
SCLK
b
Tc
Tc
a
/AS
c
e
d
/DS
F
G
/WAIT
Figure 73. Wait Timing
Description
a
b
c
d
e
F
G
Skew of T1 SCLK Rise to /AS Fall
Skew of T1 SCLK Rise to /AS Rise
Skew of T2 SCLK Rise to Read /DS Fall
Skew T2 SCLK Fall to Write /DS Fall
Skew T3 SCLK Fall to /DS Rise
10.0
Max
Max
Max
Max
Max
Max
Max
10.0
20.0
20.0
20.0
20.0
15.0
/WAIT Fall Delay After T2 SCLK Fall to Generate at Least 1 WAIT State
/WAIT Fall Delay after T2 SCLK Fall to Prevent an Additional WAIT State
NOTES
All figures are in nanoseconds.
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Innovasic.com
Innovasic Semiconductor
ENG21 1 030617-04
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