80C562 Datasheet, PDF (12/20 Pages) NXP Semiconductors – Single-chip 8-bit microcontroller

Philips Semiconductors
Single-chip 8-bit microcontroller
Product specification
80C562/83C562
ALE
PSEN
WR
PORT 0
PORT 2
t_LLWL
t_WLWH
t_AVLL
t_LLAX
A0–A7
FROM RI OR DPL
t_AVWL
t_QVWX
t_DW
DATA OUT
P2.0–P2.7 OR A8–A15 FROM DPH
t_WHLH
t_WHQX
A0–A7 FROM PCL
A8–A15 FROM PCH
1992 Jan 08
Figure 4. External Data Memory Write Cycle
t_HIGH
V_IH1
0.8V
V_IH1
0.8V
t_LOW
t_r
V_IH1
0.8V
t_CK
t_f
V_IH1
0.8V
Figure 5. External Clock Drive XTAL1
2.4V
0.45V
2.0V
0.8V
Test Points
2.0V
0.8V
NOTE:
AC inputs during testing are driven at 2.4V for a logic ‘1’ and 0.45V for a logic ‘0’.
Timing measurements are made at 2.0V for a logic ‘1’ and 0.8V for a logic ‘0’.
Figure 6. AC Testing Input/Output
2.4V
2.0V
Float
2.0V
2.4V
0.45V
0.8V
0.8V
0.45V
NOTE:
The float state is defined as the point at which a port 0 pin sinks 3.2mA or sources 400µA at the voltage test levels.
Figure 7. AC Testing Input, Float Waveform
12
INSTR IN
SU00213
SU00228
SU00215
SU00216