Datasheet

C167CR
C167SR
Electrical Parameters
Data Sheet 71 V3.3, 2005-02
4.4.3 Testing Waveforms
Figure 13 Input Output Waveforms
Figure 14 Float Waveforms
MCA04414
2.4 V
0.45 V
1.8 V
0.8 V
1.8 V
0.8 V
Test Points
AC inputs during testing are driven at 2.4 V for a logic ’1’ and 0.45 V for a logic ’0’.
Timing measurements are made at
IH
V min for a logic ’1’ and V
IL
max for a logic ’0’.
MCA00763
- 0.1 V
+ 0.1 V
+ 0.1 V
- 0.1 V
Reference
For timing purposes a port pin is no longer floating when a 100 mV change from load voltage occurs,
but begins to float when a 100 mV change from the loaded
OH
V
Timing
Points
Load
V
V
Load
OH
V
V
OL
/ V
OL
level occurs ( I
OH OL
I / = 20 mA).