SyncMOS Technologies International, Inc.
SM89S16R1
8-Bits Micro-controller
With 64KB Flash ROM & 1KB RAM & RTC & ADC & PWM & PDWU embedded
tCLKR
tLLIV
VIH1
0.8V
tCLKL
tCLK
Figure 4 External Clock Drive waveform
2.0V
2.0V
Test Points
0.8V
0.8V
Notes:
AC inputs during testing are driven at 2.4V for logic
“HIGH” and 0.45V for logic “LOW”. Timing
measurements are at 2.0V for logic “HIGH” and 0.8V
Figure 5 AC Testing Input/Output
Floating
2.0V
0.8V
2.0V
0.8V
Notes:
The float state is define as the point which PORT 0
pins sinks 3.2mA or source 400µA at the voltage
test level.
Figure 6 AC Testing, Floating Waveform
tLHLL
ALE
tLLPL
tPLPH
tAVLL
tPLIV
/PSEN
tPLAZ
tLLAX
tPXIZ
tPXIX
tLLIV
PORT0
PORT2
A0-A7
INSTR IN
A0-A7
tAVIV
A8-A15
A8-A15
A8-A15
Figure 7 External Program Memory Read Cycle
Specifications subject to change without notice contact your sales representatives for the most recent information.
Ver 2.1 SM89S16R1 08/2006
11
SYNCMOS [ SYNCMOS TECHNOLOGIES,INC ]
