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| 型號(hào)： | HD404336FS |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 4-bit HMCS400-Series microcomputer with large-capacity memory |
| 中文描述： | 4位HMCS400系列的大容量存儲(chǔ)器微機(jī) |
| 文件頁(yè)數(shù)： | 28/78頁(yè) |
| 文件大?。?/td> | 337K |
| 代理商： | HD404336FS |
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HD404339 Series
28
Table 4
Oscillator Circuit Examples
Circuit Configuration
Circuit Constants
External clock
operation
External
oscillator
OSC
Open
1
OSC
2
Ceramic oscillator
(OSC
1
, OSC
2
)
OSC
2
C
1
2
C
OSC
1
R
f
Ceramic
GND
Ceramic oscillator: CSA4.00MG
(Murata)
R
f
= 1 M
±
20%
C
1
= C
2
= 30 pF
±
20%
Crystal oscillator
(OSC
1
, OSC
2
)
OSC
2
C
1
2
C
OSC
1
R
f
Crystal
GND
L
S
C
R
S
C
0
OSC
1
OSC
2
R
f
= 1 M
±
20%
C
1
= C
2
= 10 to 22 pF
±
20%
Crystal: Equivalent to circuit shown below
C
0
= 7 pF max.
R
S
= 100
max.
Crystal oscillator
(X1, X2)
X1
C
1
2
C
X2
Crystal
GND
L
S
C
R
S
C
0
X1
X2
Crystal: 32.768 kHz: MX38T (Nippon
Denpa)
C
1
= C
2
= 20 pF
±
20%
R
S
= 14 k
C
0
= 1.5 pF
Notes: 1. Since the circuit constants change depending on the crystal or ceramic oscillator and stray
capacitance of the board, the user should consult with the crystal or ceramic oscillator
manufacturer to determine the circuit parameters.
2. Wiring among OSC
, OSC
, X1, X2 and elements should be as short as possible, and must not
cross other wiring (see figure 19).
3. When a 32.768-kHz crystal oscillator is not used, fix pin X1 to GND and leave pin X2 open.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HD404336S | 4-bit HMCS400-Series microcomputer with large-capacity memory |
| HD404338FS | 4-bit HMCS400-Series microcomputer with large-capacity memory |
| HD404338S | 4-bit HMCS400-Series microcomputer with large-capacity memory |
| HD404339S | 4-bit HMCS400-Series microcomputer with large-capacity memory |
| HD404334 | 4-bit HMCS400-series microcomputer(4位單片微計(jì)算機(jī)) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD404336S | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-bit HMCS400-Series microcomputer with large-capacity memory |
| HD404338 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-bit HMCS400-Series microcomputer with large-capacity memory |
| HD404338FS | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-bit HMCS400-Series microcomputer with large-capacity memory |
| HD404338S | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-bit HMCS400-Series microcomputer with large-capacity memory |
| HD404339 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-bit HMCS400-Series microcomputer with large-capacity memory |
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