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LC87F57C8A Datasheet, PDF (19/28 Pages) Sanyo Semicon Device – 8 BIT SINGLE CHIP MICROCONTROLLER
LC87F57C8A
Parameter Symbol
Pins
Conditions
Limits
VDD[V] min.
RD
tRDH(1)
’H’ pulse width
tRDH(2)
RD (PA4)
RD (PA4)
2.5 - 5.5 1/6tCYC
-5ns
2.5 - 5.5 1/3tCYC
-5ns
RD
tRDL(1)
’L’ pulse width
tRDL(2)
RD (PA4)
RD (PA4)
2.5 - 5.5 1/3tCYC
-5ns
2.5 - 5.5 1/2tCYC
-5ns
Data write
tdDT(1) RD (PA4), PB0-PB7 The time delay
maximum delay
allowed, from RD
2.5 - 5.5
leading edge until
tdDT(2) RD (PA4), PB0-PB7 input data set-up
2.5 - 5.5
(Note 1)
Input data
set-up time
tsDTR(1) RD (PA4), PB0-PB7 From input data set- 2.5 - 5.5 40
up to RD leading
edge.
(Note 2)
Input data
hold time
thDTR(1) RD (PA4), PB0-PB7 From RD leading 2.5 - 5.5 0
edge until input data
hold
Output data
set-up time
tsDTW(1) RD (PA4), PB0-PB7
tsDTW(2) RD (PA4), PB0-PB7
From output data set-
up until WR
leading edge
2.5 - 5.5 1/3tCYC
-30ns
2.5 - 5.5 1/3tCYC
-30ns
Output data
hold time
thDTW(1) RD (PA4), PB0-PB7 From WR leading 2.5 - 5.5 0
thDTW(2)
edge until output data 2.5 - 5.5 0
hold
typ.
1/6
tCYC
1/3
tCYC
1/3
tCYC
1/2
tCYC
max.
unit
tCYC
& ns
1/6tCYC
-15ns
1/3tCYC
-15ns
ns
ns
tCYC
& ns
ns
Note 1 : Time until incorrect data of Low disappears.
Note 2 : Incorrect data of Low is not output in the period between tRDL(1) - tdDT(1).
6. Pulse input conditions / Ta=-20°C to +70°C, VSS1=VSS2=VSS3=0V
Parameter Symbol
High/low level tPIH(1)
pulse width
tPIL(1)
tPIH(2)
tPIL(2)
tPIH(3)
tPIL(3)
tPIH(4)
tPIL(4)
tPIL(5)
Pins
INT0(P70),
INT1(P71),
INT2(P72)
INT4(P20-P23)
INT5(P24-P27)
INT3(P73)
(The noise rejection clock
is selected to 1/1.)
INT3(P73)
(The noise rejection clock
is selected to 1/32.)
INT3(P73)
(The noise rejection clock
is selected to 1/128.)
RES
Conditions
• Interrupt acceptable
• Timer 0 and 1 event
input acceptable
• Interrupt acceptable
• Timer 0 event input
acceptable
• Interrupt acceptable
• Timer 0 event input
acceptable
• Interrupt acceptable
• Timer 0 event input
acceptable
Reset acceptable
VDD[V
]
2.5 - 5.5
2.5 - 5.5
2.5 - 5.5
2.5 - 5.5
2.5 - 5.5
Limits
min. typ.
1
2
64
256
200
max. unit
tCYC
µs
Ver.1.00
19/27