LC87F1HC8AUWA-2H Datasheet, PDF (15/27 Pages) ON Semiconductor – 8-bit 1-chip Microcontroller with USB-host controller

LC87F1HC8A
Serial I/O Characteristics at Ta = -40°C to +85°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 transfer mode
• USB, AIF, SIO4, SIO9, and
DMCOPY not used at the same
4
time.
• See Fig. 8.
tSCKHA(1b)
• (Note 4-1-2)
• Continuous data transfer mode
• USB used at the same time.
2.7 to 5.5
tCYC
• AIF, SIO4, SIO9, and DMCOPY
7
not used at the same time.
• See Fig. 8.
• (Note 4-1-2)
tSCKHA(1c)
• Continuous data transfer mode
• USB, AIF, SIO4, SIO9, and
DMCOPY used at the same
9
time.
• See Fig. 8.
• (Note 4-1-2)
Frequency
tSCK(2)
SCK0(P12) • When CMOS output type is
4/3
selected
Low level
pulse width
High level
pulse width
tSCKL(2)
tSCKH(2)
• See Fig. 8.
1/2
tSCK
1/2
tSCKHA(2a)
• Continuous data transfer mode
• USB, AIF, SIO4, SIO9, and
DMCOPY not used at the same
time.
• When CMOS output type is
tSCKH(2)
+2tCYC
tSCKH(2)
+
(10/3)tCYC
selected
tSCKHA(2b)
• See Fig. 8.
• Continuous data transfer mode
2.7 to 5.5
• USB used at the same time.
• AIF, SIO4, SIO9, and DMCOPY
not used at the same time.
• When CMOS output type is
tSCKH(2)
+2tCYC
tSCKH(2)
+
(19/3)tCYC
tCYC
selected.
• See Fig. 8.
tSCKHA(2c)
• Continuous data transfer mode
• USB, AIF, SIO4, SIO9, and
DMCOPY used at the same time
• When CMOS output type is
selected
tSCKH(2)
+2tCYC
tSCKH(2)
+
(25/3)tCYC
• See Fig. 8.
Note 4-1-1: These specifications are theoretical values. Margins must be allowed according to the actual operating
conditions.
Note 4-1-2: In an application where the serial clock input is to be used in the continuous data transfer mode, the time
from SI0RUN 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.A0956-15/27