參數(shù)資料
型號: HD4074618
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): 65/89頁
文件大?。?/td> 358K
代理商: HD4074618
HD404618 Series
65
VT
ref
GND
Time slots
1 2 3
4 5
6 7 8 9 10
12
11
13 14 15 16
18 19
17
20 21 22 23 24 25 26 27 28 29 30 31 32
Figure 42 Waveform of Tone Output
Table 32 Frequency Deviation of the MCU from Standard DTMF Signals
Standard
DTMF (Hz)
MCU (Hz)
Deviation from
Standard (%)
R1
697
694.44
–0.37
R2
770
769.23
–0.10
R3
852
851.06
–0.11
R4
941
938.97
–0.22
C1
1,209
1,212.12
0.26
C2
1,336
1,333.33
–0.20
C3
1,477
1,481.48
0.30
C4
Note:
1,633
1,639.34
0.39
This frequency deviation value does not include the frequency deviation due to the oscillator
element. Also note that in this case the ratio of the high level and low level widths in the oscillator
waveform due to the oscillator element will be 50% : 50%.
相關(guān)PDF資料
PDF描述
HD4074618FS CONNECTOR
HD4074618H 4-Bit Single-Chip Microcomputer
HD4074618TF 4-Bit Single-Chip Microcomputer
HD4046212R AS Microcomputer Incorporating a DTMF Generator Circuit(微計(jì)算機(jī)帶雙音多頻發(fā)生器電路)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD4074618F 制造商:Renesas Electronics Corporation 功能描述:
HD4074618FS 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer
HD4074618H 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer
HD4074618TF 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer
HD4074629 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:AS Microcomputer Incorporating a DTMF Generator Circuit