參數(shù)資料
型號: UPD754264
廠商: NEC Corp.
英文描述: 4-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述: 4位單晶片微控制器
文件頁數(shù): 50/68頁
文件大?。?/td> 318K
代理商: UPD754264
50
μ
PD754264
AC Characteristics (T
A
= –40 to +85
°
C, V
DD
= 1.8 to 6.0 V)
Parameter
Symbol
Test Conditions
MIN.
TYP.
MAX.
Unit
CPU clock cycle time
Note 1
(Minimum instruction execution
time = 1 machine cycle)
t
CY
V
DD
= 1.8 to 2.0 V
1.9
64.0
μ
s
V
DD
= 2.0 to 2.7 V
0.95
64.0
μ
s
V
DD
= 2.7 to 6.0 V
0.67
64.0
μ
s
Interrupt input high- and
low-level width
t
INTH
,
t
INTL
INT0
IM02 = 0
Note 2
μ
s
IM02 = 1
10
μ
s
KR4 to KR7
10
μ
s
RESET low-level width
t
RSL
10
μ
s
Notes 1.
The CPU clock (
Φ
) cycle time (minimum
instruction execution time) is determined by
the oscillation frequency of the connected
resonator (or external clock) and the proces-
sor clock control register (PCC). The figure
on the right shows the cycle time t
CY
charac-
teristics against the supply voltage V
DD
when
the system clock is used.
2.
2t
CY
or 128/f
X
depending on the setting of the
interrupt mode register (IM0).
0.50
Supply voltage V
DD
(V)
1
2
3
4
5
6
1
2
1.9
0.95
0.67
2.7
3
4
5
6
60
64
(During system clock operation)
t
CY
vs. V
DD
Operation guranteed range
1.8
μ
C
C
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