Datasheet

TMS320LF2407A, TMS320LF2406A, TMS320LF2403A, TMS320LF2402A
TMS320LC2406A, TMS320LC2404A, TMS320LC2403A, TMS320LC2402A
DSP CONTROLLERS
SPRS145L − JULY 2000 − REVISED SEPTEMBER 2007
90
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443
general-purpose input/output timing
switching characteristics over recommended operating conditions (see Figure 40)
PARAMETER MIN MAX UNIT
t
Dela time CLKOUT lo to GPIO lo /high
All GPIOs
9
ns
t
d(GPO)CO
Delay time, CLKOUT low to GPIO low/high
All GPIOs
9ns
t
r(GPO)
Rise time, GPIO switching low to high All GPIOs 8 ns
t
f(GPO)
Fall time, GPIO switching high to low All GPIOs 6 ns
timing requirements [H = 0.5t
c(CO)
] (see Figure 41)
MIN MAX UNIT
t
w(GPI)
Pulse duration, GPI high/low
2H+15 ns
t
d(GPO)CO
GPIO
CLKOUT
t
r(GPO)
t
f(GPO)
Figure 40. General-Purpose Output Timing
GPIO
CLKOUT
t
w(GPI)
Figure 41. General-Purpose Input Timing