TSC80251-SK TEMIC [TEMIC Semiconductors], TSC80251-SK Datasheet - Page 55
TSC80251-SK
Manufacturer Part Number
TSC80251-SK
Description
8/16-bit Microcontroller with Serial Communication Interfaces
Manufacturer
TEMIC [TEMIC Semiconductors]
Datasheet
1.TSC80251-SK.pdf
(63 pages)
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11.8 AC Characteristics - External Clock Drive and Logic Level References
Definition of symbols
Timings
Waveforms
Note:
During AC testing, all inputs are driven at V
Timing measurements are made on all outputs at V
Note:
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 loading V
Rev. A - May 7, 1999
Symbol
T
T
T
T
F
CHCX
CLCX
CLCH
CHCL
OSC
C
0.45 V
V
V
Table 60. External Clock AC Timings; V
DD
LOAD
V
Oscillator Frequency
High Time
Low Time
Rise Time
Fall Time
DD
- 0.5
0.45 V
- 0.5
OH
V
V
/V
IL
V
V
Clock
LOAD
LOAD
OL
IH1
Signals
level occurs with I
Table 59. External Clock Timing Symbol Definitions
+ 0.1 V
- 0.1 V
Figure 34. AC Testing Input/Output Waveforms
INPUTS
DD
T
Figure 33. External Clock Waveform
0.2 V
0.2 V
CHCL
-0.5 V for a logic 1 and 0.45 V for a logic 0.
IH
Parameter
DD
DD
Figure 35. Float Waveforms
OL
min for a logic 1 and V
+ 0.9
- 0.1
/I
Timing Reference Points
OH
= 20 mA.
T
CLCX
DD
T
CLCH
H
L
X
= 4.5 to 5.5 V, T
IL
max for a logic 0.
T
CLCL
V
V
V
V
IL
IH
TSC80251G2D
OH
OL
High
Low
No Longer Valid
Conditions
max
min
+ 0.1 V
OUTPUTS
- 0.1 V
A
T
Min
= -40 to +85 C
10
10
CHCX
3
3
Max
24
Unit
MHz
ns
ns
ns
ns
55
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