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OUTPUT TIMINGS
Switching Characteristics for Output Timings versus Load Capacitance ©
L
)
t
f
t
r
V
CC
80% 80%
20% 20%
0
Output
TMS470R1B1M
16/32-Bit RISC Flash Microcontroller
SPNS109A – SEPTEMBER 2005 – REVISED AUGUST 2006
(see Figure 11 )
PARAMETER MIN MAX UNIT
C
L
= 15 pF 0.5 2.5
C
L
= 50 pF 1.5 5.0
t
r
Rise time, AWD, CLKOUT, TDI, TDO, TMS, TMS2 ns
C
L
= 100 pF 3.0 9.0
C
L
= 150 pF 4.5 12.5
C
L
= 15 pF 0.5 2.5
C
L
= 50 pF 1.5 5.0
t
f
Fall time, AWD, CLKOUT, TDI, TDO, TMS, TMS2 ns
C
L
= 100 pF 3.0 9.0
C
L
= 150 pF 4.5 12.5
C
L
= 15 pF 2.5 8
C
L
= 50 pF 5 14
t
r
Rise time, RST ns
C
L
= 100 pF 9 23
C
L
= 150 pF 13 32
C
L
= 15 pF 3 10
C
L
= 50 pF 3.5 12
t
r
Rise time, 4mA, 5 V tolerant pins C
L
= 100 pF 7 21 ns
C
L
= 150 pF 9 28
C
L
= 400 pF 18 40
C
L
= 15 pF 2 8
C
L
= 50 pF 2.5 9
t
f
Fall time, 4mA, 5 V tolerant pins C
L
= 100 pF 8 25 ns
C
L
= 150 pF 11 35
C
L
= 400 pF 20 45
C
L
= 15 pF 2.5 10
C
L
= 50 pF 6.0 25
t
r
Rise time, all other output pins ns
C
L
= 100 pF 12 45
C
L
= 150 pF 18 65
C
L
= 15 pF 3 10
C
L
= 50 pF 8.5 25
t
f
Fall time, all other output pins ns
C
L
= 100 pF 16 45
C
L
= 150 pF 23 65
Figure 11. CMOS-Level Outputs
39
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