參數(shù)資料
型號: HD404458
廠商: Hitachi,Ltd.
英文描述: 4-bit HMCS400-Series microcomputer(4位單片微計算機)
中文描述: 4位HMCS400系列微機(4位單片微計算機)
文件頁數(shù): 113/120頁
文件大?。?/td> 692K
代理商: HD404458
HD404459 Series
113
AC Characteristics
HD404458, HD404459: V
CC
= 1.8 to 3.6 V, GND = 0 V, T
a
= –20 to +75
°
C, f
OSC
= 0.4 to 4.0 MHz
HD4074459: V
CC
= 2.2 to 2.7 V, GND = 0 V, T
a
= –5 to +60
°
C, f
OSC
= 0.4 to 2.0 MHz;
V
CC
= 2.7 to 3.6 V, GND = 0 V, T
a
= –20 to +75
°
C, f
OSC
= 0.4 to 4.0 MHz, unless otherwise specified.
Item
Symbol
Pin(s)
Min
Typ
Max
Unit
Test Condition
Notes
Clock oscillation
frequency
f
OSC
OSC
1
, OSC
2
0.4
4.0
MHz
HD404458, HD404459:
1/4division,
V
CC
= 1.8 V to 3.6 V
HD4074459:
1/4 division,
V
CC
= 2.7 V to 3.6 V
HD4074459:
1/4 division,
V
CC
= 2.2 V to 2.7 V
0.4
2.0
MHz
X1, X2
32.768
kHz
Instruction cycle
time
t
cyc
1.0
10
μ
s
HD404458, HD404459:
1/4 division,
V
CC
= 1.8 V to 3.6 V
HD4074459:
1/4 division,
V
CC
= 2.7 V to 3.6 V
HD4074459:
1/4 division,
V
CC
= 2.2 V to 2.7 V
32-kHz oscillator,
1/8 division
2.0
10
μ
s
t
subcyc
244.14
μ
s
122.07
μ
s
32-kHz oscillator,
1/4 division
Oscillation
stabilization time
(ceramic oscillator)
t
RC
OSC
1
, OSC
2
60
ms
1
Oscillation
stabilization time
(crystal oscillator)
t
RC
OSC
1
, OSC
2
60
ms
1
X1, X2
3
s
T
a
= –10
°
C to+60
°
C
f
OSC
= 4 MHz
2
External clock high
width
t
CPH
OSC
1
105
ns
3
External clock low
width
t
CPL
OSC
1
105
ns
f
OSC
= 4 MHz
3
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參數(shù)描述
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