C505-2RM SIEMENS [Siemens Semiconductor Group], C505-2RM Datasheet - Page 84
C505-2RM
Manufacturer Part Number
C505-2RM
Description
8-Bit CMOS Microcontroller
Manufacturer
SIEMENS [Siemens Semiconductor Group]
Datasheet
1.C505-2RM.pdf
(85 pages)
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Figure 41
AC Testing: Input, Output Waveforms
Figure 42
AC Testing : Float Waveforms
Figure 43
Recommended Oscillator Circuits for Crystal Oscillator
Semiconductor Group
For timing purposes a port pin is no longer floating when a 100 mV change from load voltage
occurs and begins to float when a 100 mV change from the loaded
I
AC Inputs during testing are driven at
Timing measurements are made at
OL
/
I
OH
V
CC
20 mA
V
-0.5 V
Load
0.45 V
Crystal Mode: C = 20 pF 10 pF (incl. stray capacitance)
Crystal Oscillator Mode
V
V
Load
Load
2 - 20
MHz
C
C
+0.1 V
-0.1 V
V
XTAL2
XTAL1
IHmin
0.2
0.2
V
V
V
CC
for a logic ’1’ and
CC
CC
Timing Reference
- 0.5 V for a logic ’1’ and 0.45 V for a logic ’0’.
+0.9
-0.1
84
Test Points
Points
Driving from External Source
N.C.
External Oscillator
Signal
V
ILmax
for a logic ’0’.
V
OH
/
V
V
V
MCS03311
XTAL2
XTAL1
OL
OH
OL
C505A / C505CA
MCT00038
+0.1 V
level occurs.
-0.1 V
C505 / C505C
MCT00039
1997-12-01
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