LC87F2708A Datasheet, PDF (12/21 Pages) Sanyo Semicon Device – CMOS IC FROM 8K byte, RAM 512 byte on-chip 8-bit 1-chip Microcontroller

LC87F2708A
Serial I/O Characteristics at Ta = -40°C to +85°C, VSS1 = 0V
1. SIO7 Serial I/O Characteristics (Note 4-1-1)
Parameter
Frequency
Low level
pulse width
High level
pulse width
Frequency
Low level
pulse width
High level
pulse width
Data setup time
Data hold time
Symbol
tSCK(1)
tSCKL(1)
Pin/
Remarks
Conditions
SCK7(P12) • See Fig. 4
(Note 4-1-2)
tSCKH(1)
VDD[V]
2.7 to 5.5
tSCK(2)
tSCKL(2)
tSCKH(2)
SCK7(P12) • CMOS output selected
• See Fig. 4.
2.7 to 5.5
tsDI(1)
thDI(1)
SB7(P11),
SI7(P11)
• Must be specified with respect to
rising edge of SIOCLK.
• See Fig. 4.
2.7 to 5.5
min
2
Specification
typ
max
1
1
4/3
1/2
1/2
0.03
0.03
unit
tCYC
tSCK
Output delay
time
tdDO(1)
tdDO(2)
SO7(P10),
SB7(P11)
• Must be specified with respect to
rising edge of SIOCLK.
• Must be specified as the time to
the beginning of output state
change in open drain output
mode
• See Fig. 4.
2.7 to 5.5
1tCYC
μs
+0.05
(1/3)tCYC
+0.05
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 transmission/reception mode, the time from SI7RUN being set when serial
clock is "H" to the first falling edge of the serial clock must be longer than 1tCYC.
No.A1335-12/21