參數(shù)資料
型號(hào)： UPD17071GB-012
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(jī)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(yè)數(shù)： 8/48頁(yè)
文件大小： 296K
代理商： UPD17071GB-012
μ
PD17071GB-012
8
TABLE OF CONTENTS
1.
PIN FUNCTION ....................................................................................................................................9
2.
CONFIGURATION OF KEY MATRIX ................................................................................................15
2.1
Layout of Initialization Diode Key Matrix .............................................................................15
2.2
Layout of Momentary Key Matrix...........................................................................................15
2.3
Connection of Key Matrix .......................................................................................................16
2.4
Description of Key Matrix .......................................................................................................17
2.4.1
Initialization diode matrix............................................................................................................ 17
2.4.2
Momentary key ............................................................................................................................. 20
2.5
Alarm Function.........................................................................................................................28
2.6
Key Lock Function...................................................................................................................29
3.
LCD DISPLAY ....................................................................................................................................30
3.1
LCD Panel..................................................................................................................................30
3.2
Font ............................................................................................................................................30
3.3
LCD Pattern...............................................................................................................................30
3.4
LCD Pin Assignment................................................................................................................31
3.5
Display Description .................................................................................................................33
3.6
Display Example.......................................................................................................................34
4.
MUTE OUTPUT TIMING CHART ......................................................................................................36
4.1
Manual up/down (operates by pressing key and releasing within 0.5 sec) ....................36
4.2
Auto up/down (operates by holding down key for 0.5 sec or longer) .............................36
4.3
Calling Preset Memory ............................................................................................................37
4.4
Band Selection .........................................................................................................................37
4.5
CE Pin ........................................................................................................................................37
4.5.1
High level to low level ................................................................................................................. 37
4.5.2
Low level to high level................................................................................................................. 37
4.6
Sleep Timer ...............................................................................................................................38
5.
ELECTRICAL SPECIFICATIONS (PRELIMINARY).........................................................................39
6.
PACKAGE...........................................................................................................................................42
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