LC87F14C8A Datasheet, PDF (15/26 Pages) Sanyo Semicon Device – CMOS IC FROM 128K byte, RAM 10K byte on-chip 8-bit 1-chip Microcontroller with USB-host controller

LC87F14C8A
Serial I/O Characteristics at Ta = -20°C to +70°C, VSS1 = VSS2 = VSS3 = 0V
1. SIO0 Serial I/O Characteristics (Note 4-1-1)
Parameter
Frequency
Symbol
tSCK(1)
Pin/
Remarks
SCK0(P12)
Conditions
See Fig. 8.
Specification
VDD[V]
min
typ
max
unit
2
Low level
tSCKL(1)
1
pulse width
High level
tSCKH(1)
1
pulse width
tSCKHA(1a)
• Continuous data
transmission/reception mode
• USB, SIO4 nor SIO9 are
4
not in use simultaneous.
• See Fig. 8.
• (Note 4-1-2)
tSCKHA(1b)
• Continuous data
transmission/reception mode
• USB is in use simultaneous.
2.7 to 5.5
tCYC
• SIO4 nor SIO9 are not in
7
use simultaneous.
• See Fig. 8.
• (Note 4-1-2)
tSCKHA(1c)
• Continuous data
transmission/reception mode
• USB, SIO4 and SIO9
9
are in use simultaneous.
• See Fig. 8.
• (Note 4-1-2)
Frequency
Low level
pulse width
High level
pulse width
tSCK(2)
tSCKL(2)
tSCKH(2)
SCK0(P12)
• CMOS output selected
• See Fig. 8.
4/3
1/2
1/2
tSCK
tSCKHA(2a)
• Continuous data
transmission/reception mode
• USB, SIO4 nor SIO9 are
not in use simultaneous.
• CMOS output selected
• See Fig. 8.
tSCKH(2)
+2tCYC
tSCKH(2)
+(10/3)
tCYC
tSCKHA(2b)
• Continuous data
transmission/reception mode
2.7 to 5.5
• USB is in use simultaneous.
• SIO4 nor SIO9 are not in
use simultaneous.
tSCKH(2)
+2tCYC
tSCKH(2)
+(19/3)
tCYC
tCYC
• CMOS output selected
• See Fig. 8.
tSCKHA(2c)
• Continuous data
transmission/reception mode
• USB, SIO4 and SIO9
are in use simultaneous.
• CMOS output selected
tSCKH(2)
+2tCYC
tSCKH(2)
+(25/3)
tCYC
• See Fig. 8.
Note 4-1-1: These specifications are theoretical values. Add margin depending on its use.
Note 4-1-2: To use serial-clock-input in continuous trans/rec mode, a time from SI0RUN being set when serial clock
is “H” to the first negative edge of the serial clock must be longer than tSCKHA.
Continued on next page.
No.A0402-15/26