LC87F7932B Datasheet, PDF (19/29 Pages) Sanyo Semicon Device – 32K-byte FROM and 2048-byte RAM integrated 8-bit 1-chip Microcontroller

LC87F7932B
Serial I/O Characteristics at Ta = -40°C to +85°C, VSS1 = VSS2 = 0V
1. SIO0 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
SCK0(P12)
Conditions
See Fig. 6.
tSCKH(1)
tSCKHA(1)
tSCK(2)
tSCKL(2)
SCK0(P12)
• Continuous data
transmission/reception
mode
• See Fig. 6.
• (Note 4-1-2)
• CMOS output selected
• See Fig. 6.
tSCKH(2)
tSCKHA(2)
tsDI(1)
thDI(1)
SB0(P11),
SI0(P11)
• Continuous data
transmission/reception
mode
• CMOS output selected
• See Fig. 6.
• Must be specified with
respect to rising edge of
SIOCLK.
• See Fig. 6.
VDD[V]
2.4 to 3.6
min
2
1
1
4
4/3
2.4 to 3.6
tSCKH(2)
+2tCYC
2.4 to 3.6
0.03
2.4 to 3.6
0.03
Specification
typ
max
unit
tCYC
1/2
tSCK
1/2
tSCKH(2)
+(10/3)
tCYC
tCYC
Output delay
time
tdD0(1)
SO0(P10),
SB0(P11)
tdD0(2)
tdD0(3)
• Continuous data
transmission/reception
mode
• (Note 4-1-3)
• Synchronous 8-bit mode
• (Note 4-1-3)
(Note 4-1-3)
2.4 to 3.6
2.4 to 3.6
2.4 to 3.6
(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.A1841-19/29