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SMJ320C40_15 Datasheet, PDF (36/65 Pages) Texas Instruments – DIGITAL SIGNAL PROCESSORS
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SMJ320C40, TMP320C40
DIGITAL SIGNAL PROCESSORS
SGUS017H -- OCTOBER 1993 -- REVISED OCTOBER 2001
timing parameters for X2/CLKIN, H1, H3 (see Figure 8 and Figure 9)
320C40-40
NO.
MIN
MAX
1 tf(CI)
2 tw(CIL)
3 tw(CIH)
4 tr(CI)
5 tc(CI)
6 tf(H)
7 tw(HL)
8 tw(HH)
9 tr(H)
9.1 td(HL-HH)
Fall time, CLKIN
Pulse duration, CLKIN low, tc(CI) = min
Pulse duration, CLKIN high, tc(CI) = min
Rise time, CLKIN
Cycle time, CLKIN
Fall time, H1/H3
Pulse duration, H1/H3 low
Pulse duration, H1/H3 high
Rise time, H1/H3
Delay time, from H1 low to H3 high or
from H3 low to H1 high
8.5
8.5
25
tc(Cl) -- 6
tc(Cl) -- 6
--1
5*
5*
242.5
3*
tc(Cl)+6
tc(Cl)+6
4*
4
10 tc(H)
Cycle time, H1/H3
50
485
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
320C40-50
MIN
MAX
5*
7
7
5*
20 242.5
3*
tc(Cl) -- 6
tc(Cl) -- 6
tc(Cl)+6
tc(Cl)+6
4*
--1
4
40
485
320C40-60
MIN
MAX
5*
5
5
5*
16.67 242.5
3*
tc(Cl) -- 6
tc(Cl) -- 6
tc(Cl)+6
tc(Cl)+6
4*
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
--1
4 ns
33.3
485 ns
X2/CLKIN
5
4
1
3
2
Figure 8. X2/CLKIN Timing
10
9
6
H1
8
7
9.1
9.1
H3
8
9
6
7
10
Figure 9. H1/H3 Timings
36
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