LC87F7J32A Datasheet, PDF (17/29 Pages) Sanyo Semicon Device – FROM 32K byte, RAM 1024 byte on-chip 8-bit 1-chip Microcontroller

LC87F7J32A
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
Conditions
SCK0(P12)
See Fig. 6.
VDD[V]
min
2
Specification
typ
max
Low level
pulse width
High level
pulse width
tSCKL(1)
tSCKH(1)
tSCKHA(1)
Frequency tSCK(2)
SCK0(P12)
Low level
pulse width
High level
pulse width
tSCKL(2)
tSCKH(2)
tSCKHA(2)
Data setup time tsDI(1)
Data hold time
thDI(1)
SB0(P11),
SI0(P11)
• Continuous data
transmission/reception mode
• See Fig. 6.
• (Note 4-1-2)
• CMOS output selected
• See Fig. 6.
• Continuous data
transmission/reception mode
• CMOS output selected
• See Fig. 6.
• Must be specified with
respect to rising edge of
SIOCLK
• See Fig. 6.
1
2.2 to 5.5
1
4
4/3
1/2
2.2 to 5.5
1/2
tSCKH(2)
+2tCYC
tSCKH(2)
+(10/3)
tCYC
2.2 to 5.5
0.03
2.2 to 5.5
0.03
unit
tCYC
tSCK
tCYC
Output
delay time
tdDO(1)
tdDO(2)
tdDO(3)
SO0(P10),
SB0(P11)
• Continuous data
transmission/reception mode
• (Note 4-1-3)
• Synchronous 8-bit mode
• (Note 4-1-3)
(Note 4-1-3)
2.2 to 5.5
2.2 to 5.5
2.2 to 5.5
(1/3)tCYC
+0.05
μs
1tCYC
+0.05
(1/3)tCYC
+0.15
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.
Note 4-1-3: Must be specified with respect to falling edge of SIOCLK. Must be specified as the time to the beginning
of output state change in open drain output mode. See Fig. 6.
No.A0886-17/29