Datasheet

TMS320LF2407A, TMS320LF2406A, TMS320LF2403A, TMS320LF2402A
TMS320LC2406A, TMS320LC2404A, TMS320LC2403A, TMS320LC2402A
DSP CONTROLLERS
SPRS145L − JULY 2000 − REVISED SEPTEMBER 2007
105
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443
external memory interface ready-on-write timing
switching characteristics over recommended operating conditions for an external memory
interface ready-on-write (see Figure 50)
PARAMETER MIN MAX UNIT
t
d(COH-A)W
Delay time, CLKOUT high to address valid
10 ns
timing requirements for an external memory interface ready-on-write [H = 0.5t
c(CO)
]
(see Figure 50)
MIN MAX UNIT
t
h(RDY)COH
Hold time, READY after CLKOUT high
−3 ns
t
su(D)W
Setup time, write data before WE strobe inactive high
2H−17 ns
t
v(RDY)AW
Valid time, READY after address valid on write
−3 ns
t
su(RDY)COH
Setup time, READY before CLKOUT high
22 ns
t
su(D)W
CLKOUT
PS, DS, IS
t
d(COH−A)W
A[0:15]
WE
D[0:15]
STRB
t
su(RDY)COH
t
h(RDY)COH
READY
t
v(RDY)AW
Wait Cycle
Figure 50. Ready-on-Write Timings