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參數(shù)資料
| 型號： | UPD17071 |
| 廠商： | NEC Corp. |
| 英文描述： | 4-BIT SINGLE-CHIP MICROCONTROLLER WITH PLL FREQUENCY SYNTHESIZER CONTROLLER FOR PORTABLE FM/AM RADIO AND TV |
| 中文描述： | 4位單片機與鎖相環(huán)頻率合成器控制器的便攜式調(diào)頻/調(diào)幅廣播電視 |
| 文件頁數(shù)： | 17/48頁 |
| 文件大?。?/td> | 296K |
| 代理商： | UPD17071 |
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μ
PD17071GB-012
17
2.4 Description of Key Matrix
2.4.1 Initialization diode matrix
The initialization diode matrix determines the function of the
μ
PD17071GB-012. Be sure to set this diode matrix.
The setting of the diode matrix is read only on application of V
DD
(power-ON reset), or when the CE pin (pin 50)
goes high (CE reset); otherwise, it is ignored.
(1) Switch setting destination region
CHINA_BAND
(2) Switch setting receivable band (valid only when the destination region is Japan)
TV_ENA
(3) Switches setting intermediate frequency of AM band
IFSEL1, IFSEL2
(4) Switch setting station detection identification method
SD_IF
(5) Switch setting momentary key for preset memory manipulation
MEMSEL
(6) Switch setting momentary key for alarm sound canceling operation
STOPSEL
To set these switches, short-circuit (1) or open (0) the corresponding switches on the matrix with a diode.
The function of the initialization diode matrix is explained next (in alphabetical order).
相關PDF資料 |
PDF描述 |
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| UPD17071GB-012 | 4-BIT SINGLE-CHIP MICROCONTROLLER WITH PLL FREQUENCY SYNTHESIZER CONTROLLER FOR PORTABLE FM/AM RADIO AND TV |
| UPD17071GB-012-1A7 | 4-BIT SINGLE-CHIP MICROCONTROLLER WITH PLL FREQUENCY SYNTHESIZER CONTROLLER FOR PORTABLE FM/AM RADIO AND TV |
| UPD17134ACT-xxx | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| UPD17071GB-012 | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLER WITH PLL FREQUENCY SYNTHESIZER CONTROLLER FOR PORTABLE FM/AM RADIO AND TV |
| UPD17071GB-012-1A7 | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLER WITH PLL FREQUENCY SYNTHESIZER CONTROLLER FOR PORTABLE FM/AM RADIO AND TV |
| UPD17072 | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLER WITH HARDWARE FOR DIGITAL TUNING SYSTEM |
| UPD17072GB | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLER WITH HARDWARE FOR DIGITAL TUNING SYSTEM |
| UPD17072GB-XXX-1A7 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller |
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