LC87F2W48A Datasheet, PDF (17/26 Pages) Sanyo Semicon Device – 50K-byte FROM and 1536-byte RAM integrated 8-bit 1-chip Microcontroller

LC87F2W48A
2. SIO1 Serial I/O Characteristics (Note 4-2-1)
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(3)
tSCKL(3)
tSCKH(3)
tSCK(4)
tSCKL(4)
tSCKH(4)
tsDI(2)
thDI(2)
Pin/Remarks
Conditions
SCK1(P15)
See Fig. 6.
SCK1(P15)
CMOS output selected
See Fig. 6.
SB1(P14),
SI1(P14)
Must be specified with
respect to rising edge of
SIOCLK.
See Fig. 6.
VDD[V]
2.7 to 5.5
2.7 to 5.5
2.7 to 5.5
min
2
1
Specification
typ
max
1
2
1/2
1/2
0.05
0.05
unit
tCYC
tSCK
Output delay time tdD0(4)
SO1(P13),
Must be specified with
SB1(P14)
respect to falling edge of
SIOCLK.
Must be specified as the
time to the beginning of
2.7 to 5.5
output state change in
open drain output mode.
See Fig. 6.
Note 4-2-1: These specifications are theoretical values. Add margin depending on its use.
μs
(1/3)tCYC
+0.08
Pulse Input Conditions at Ta = -40°C to +85°C, VSS1 = VSS2 = VSS3 = 0V
Parameter
Symbol
Pin/Remarks
Conditions
Specification
VDD[V]
min
typ
max
unit
High/low level tPIH(1)
INT0(P70),
Interrupt source flag can be set.
pulse width
tPIL(1)
INT1(P71),
Event inputs for timer 0 or 1 are
INT2(P72),
enabled.
2.7 to 5.5
1
INT4(P20 to P23),
INT5(P24 to P27)
tPIH(2)
INT3(P73) when
Interrupt source flag can be set.
tPIL(2)
noise filter time
Event inputs for timer 0 are enabled.
2.7 to 5.5
2
constant is 1/1
tCYC
tPIH(3)
INT3(P73) when
Interrupt source flag can be set.
tPIL(3)
noise filter time
Event inputs for timer 0 are enabled.
2.7 to 5.5
64
constant is 1/32
tPIH(4)
INT3(P73) when
Interrupt source flag can be set.
tPIL(4)
noise filter time
Event inputs for timer 0 are enabled.
2.7 to 5.5
256
constant is 1/128
tPIH(5)
tPIL(5)
RMIN(P73)
Recognized by the infrared remote
2.7 to 5.5
4
controller receiver circuit as a signal.
RMCK
(Note 5-1)
tPIL(6)
RES
Resetting is enabled.
2.7 to 5.5
200
μs
Note 5-1: Represents the period of the reference clock (1 to 128 tCYC or the source frequency of the subclock) for the
infrared remote controller receiver circuit.
No.A1869-17/26