UPD75218 NEC, UPD75218 Datasheet - Page 49

• Manufacturer Part Number: UPD75218
• Description: 4-BIT SINGLE-CHIP MICROCOMPUTER
• Manufacturer: NEC

AC CHARACTERISTICS (Ta = –40 to +85 C , V
Notes 1. CPU clock ( ) cycle time is determined by the
CPU clock cycle time
(minimum instruction
execution time = 1
machine cycle)
TI0 input frequency
TI0 input high and low-
level widths
SCK cycle time
SCK high and low-level
widths
SI hold time (referred to
SCK )
Delay from SCK to SO
output
Interrupt input high and
low-level widths
RESET low-level width
SI setup time (referred to
SCK )
Parameter
2. 2t
oscillator frequency of the connected resona-
tor, the system clock control register (SCC)
and the processor clock control register (PCC).
The cycle time t
supply voltage V
clock is in operation is shown on the right.
(IM0) setting.
CY
Note 1
or 128/f
XX
is set by interrupt mode register
Symbol
CY
t
DD
t
t
t
t
t
INTH
t
t
t
INTL
t
t
t
KCY
f
TIH
KH
KSO
RSL
SIK
KSI
TIL
KL
CY
characteristics for power
TI
,
when the main system
,
,
V
Operation with main
system clock
Operation with sub-
system clock
V
V
V
V
DD
DD
DD
DD
DD
= 4.5 to 6.0 V
= 4.5 to 6.0 V
= 4.5 to 6.0 V
= 4.5 to 6.0 V
= 4.5 to 6.0 V
DD
= 2.7 to 6.0 V)
Conditions
V
0.5
40
32
30
DD
6
5
4
3
2
1
0
= 4.5 to 6.0 V
Input
Output
1
Input
Output
Input
Output
INT0
INT1
INT2,
INT4
Input
Output
Power supply voltage V
2
t
t
KCY
KCY
Note 2
0.67
0.83
0.95
t
Min.
(Operation with main system clock)
114
100
400
2t
0.8
2.6
3.2
3.8
0.4
1.6
/2–150
CY VS
3
/2–50
10
10
3
0
0
CY
Guaranteed operation
range
V
4
DD
Typ.
122
DD
[V]
5
Max.
125
165
1000
0.6
32
32
300
PD75218
6
MHz
kHz
Unit
ns
ns
ns
ns
ns
ns
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
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