Hitachi SH7032 - Serial Communication Interface Timing

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