LC87F1HC4A Datasheet, PDF (17/27 Pages) Sanyo Semicon Device – CMOS IC 128K-byte FROM and 12288-byte RAM integrated 8-bit 1-chip Microcontroller with USB-host controller

LC87F1HC4A
3. SIO4 Serial I/O Characteristics (Note 4-3-1)
Parameter
Frequency
Symbol
tSCK(5)
Pin/
Remarks
SCK4(P24)
Conditions
See Fig. 8.
Specification
VDD[V]
min
typ
max
unit
2
Low level
tSCKL(5)
1
pulse width
High level
tSCKH(5)
1
pulse width
tSCKHA(5a)
• USB, SIO0 continuous transfer
mode, AIF, SIO9, and DMCOPY
not used at the same time.
4
• See Fig. 8.
• (Note 4-3-2)
tSCKHA(5b)
• USB used at the same time
• SIO0 continuous transfer mode,
2.7 to 5.5
AIF, SIO9, DMCOPY not used at
7
the same time.
• See Fig. 8.
tCYC
• (Note 4-3-2)
tSCKHA(5c)
• USB, SIO0 continuous transfer
mode, SIO9,
and DMCOPY used at the same
time.
12
• AIF not used at the same time.
• See Fig. 8.
• (Note 4-3-2)
Frequency
Low level
pulse width
High level
pulse width
tSCK(6)
tSCKL(6)
tSCKH(6)
SCK4(P24)
• When CMOS output type is
selected.
• See Fig. 8.
4/3
1/2
1/2
tSCK
tSCKHA(6a)
• USB, SIO0 continuous transfer
mode, AIF, SIO9, and
DMCOPY not used at the same
tSCKH(6)
tSCKH(6)
time.
+
+
• When CMOS output type is
selected.
• See Fig. 8.
(5/3)tCYC
(10/3)tCYC
tSCKHA(6b)
• USB used at the same time.
• SIO0 continuous transfer mode,
2.7 to 5.5
AIF, SIO9, and DMCOPY not
tSCKH(6)
tSCKH(6)
used at the same time.
• When CMOS output type is
+
(5/3)tCYC
+
(19/3)tCYC
tCYC
selected.
• See Fig. 8.
tSCKHA(6c)
• USB, SIO0 continuous transfer
mode, SIO9, and DMCOPY used
at the same time.
tSCKH(6)
tSCKH(6)
• AIF not used at the same time.
• When CMOS output type is
+
(5/3)tCYC
+
(34/3)tCYC
selected.
• See Fig. 8.
Note 4-3-1: These specifications are theoretical values. Margins must be allowed according to the actual operating
conditions.
Note 4-3-2: In an application where the serial clock input is to be used in the continuous data transfer mode, the time
from SI4RUN being set when serial clock is high to the falling edge of the first serial clock must be longer
than tSCKHA.
Continued on next page.
No.A0955-17/27