參數(shù)資料
型號(hào): HD4074654
廠商: Hitachi,Ltd.
英文描述: 4-Bit Single-Chip Microcomputer
中文描述: 4位單片機(jī)
文件頁數(shù): 102/109頁
文件大?。?/td> 430K
代理商: HD4074654
HD404654 Series
102
5. Applies to ceramic oscillator only.
When using crystal oscillator: V
CC
= 2.7 V to 6.0 V, t
RC
= 40 ms (typ) or V
CC
= 1.8 V to 2.6 V, t
RC
=
60 ms (typ)
Crystal oscillator
(OSC
1
, OSC
2
)
C
1
2
C
Crystal
oscillator
GND
L
S
C
R
S
C
0
f
R
OSC
1
OSC
2
OSC
2
OSC
1
R
f
= 1 M
±
20%
C
= C
= 10–22 pF
±
20%
Crystal: Equivalent to circuit
shown below
C
0
= 7 pF max
R
= 100
max
f = 400 kHz, 800 kHz,
2 MHz, 3.58 MHz, 4 MHz
Since the circuit constants change depending on the crystal or ceramic resonator and stray
capacitance of the board, the user should consult with the crystal or ceramic oscillator
manufacturer to determine the circuit parameters.
Wiring among OSC
1
, OSC
2
, and elements should be as short as possible, and must not cross
other wiring (see figure 20).
6. Refer to figure 81.
7. Refer to figure 82.
8. Refer to figure 83.
9. Refer to figure 84.
10.Applies to HD4074654.
11.Analog comparator stabilization time is the period for the analog comparator to stabilize and for
correct data to be read after entering RD
0
/COMP
0
and RD
1
/COMP
1
into analog input mode.
12.HD4074654 : V
CC
= 2.7 V to 5.5 V
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