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0.8 V (V )
IL
2.0 V (V )
IH
0.4 V (V
)
OL
2.4 V (V
)
OH
TMS320F2810, TMS320F2811, TMS320F2812
TMS320C2810, TMS320C2811, TMS320C2812
SPRS174T – APRIL 2001 – REVISED MAY 2012
www.ti.com
6.9
Signal Transition Levels
Note that some of the signals use different reference voltages, see the recommended operating conditions
table. Output levels are driven to a minimum logic-high level of 2.4 V and to a maximum logic-low level of
0.4 V.
Figure 6-7
shows output levels.
Figure 6-7. Output Levels
Output transition times are specified as follows:
•
For a high-to-low transition, the level at which the output is said to be no longer high is below V
OH(MIN)
and the level at which the output is said to be low is V
OL(MAX)
and lower.
•
For a low-to-high transition, the level at which the output is said to be no longer low is above V
OL(MAX)
and the level at which the output is said to be high is V
OH(MIN)
and higher.
Figure 6-8
shows the input levels.
Figure 6-8. Input Levels
Input transition times are specified as follows:
•
For a high-to-low transition on an input signal, the level at which the input is said to be no longer high
is below V
IH(MIN)
and the level at which the input is said to be low is V
IL(MAX)
and lower.
•
For a low-to-high transition on an input signal, the level at which the input is said to be no longer low is
above V
IL(MAX)
and the level at which the input is said to be high is V
IH(MIN)
and higher.
NOTE
See the individual timing diagrams for levels used for testing timing parameters.
100
Electrical Specifications
Copyright © 2001–2012, Texas Instruments Incorporated
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