IC80C54 Datasheet, PDF (20/22 Pages) Integrated Circuit Solution Inc – CMOS SINGLE CHIP 8-BIT MICROCONTROLLER

IC80C54
IC80C58
P1.0-P1.7
P2.0-P2.5[A14(P3.4)]
PORT 0
tELQV
P2.7
ADDRESS
tAVQV
DATA OUT
tEHQZ
Figure 21. ROM Verification Waveforms
Vcc — 0.5V
0.45V
0.7Vcc
0.2Vcc — 0.1
tCHCL
tCLCX
tCHCX
tCLCH
tCLCL
Figure 22. External Clock Drive Waveforms
Vcc - 0.5V
0.45V
0.2Vcc + 0.9V
0.2Vcc - 0.1V
Figure 23. AC Test Point
Note:
1. AC inputs during testing are driven at VCC – 0.5V for logic “1” and 0.45V for logic “0”.
Timing measurements are made at VIH min for logic “1” and max for logic “0”.
20
Integrated Circuit Solution Inc.
MC003-0B