512
(
8
)
Serial Communication Interface Timing
Table 20.12 Serial Communication Interface Timing
Case A: V
CC
= 3.0 to 5.5 V, AV
CC
= 3.0 to 5.5 V, AV
CC
= V
CC
±10%, AV
ref
= 3.0 V to AV
CC
,
V
SS
= AV
SS
= 0 V,
φ
= 12.5 MHz, Ta = –20 to +75°C*
Case B: V
CC
= 5.0 V ±10%, AV
CC
= 5.0 V ±10%, AV
CC
= V
CC
±10%, AV
ref
= 4.5 V to AV
CC
,
V
SS
= AV
SS
= 0 V, f = 20 MHz, Ta = –20 to +75°C*
Note: * Regular-specification products; for wide-temperature-range products, Ta = –40 to +85°C
Cases A and B
Item
Symbol
Min
Max
Unit
Figure
Input clock cycle
t
scyc
4
—
t
cyc
20.40
Input clock cycle (synchronous mode)
t
scyc
6
—
t
cyc
Input clock pulse width
t
sckw
0.4
0.6
t
scyc
Input clock rise time
t
sckr
—
1.5
t
cyc
Input clock fall time
t
sckf
—
1.5
t
cyc
Transmit data delay time (synchronous
mode)
t
TXD
—
100
ns
20.41
Receive data setup time (synchronous
mode)
t
RXS
100
—
ns
Receive data hold time (synchronous
mode)
t
RXH
100
—
ns
SCK0, SCK1
t
scyc
t
SCKW
t
SCKr
t
SCKf
Figure 20.40 Input Clock Timing
Содержание HD6417032
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