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參數(shù)資料
| 型號： | UPD17071GB-012-1A7 |
| 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)： | 13/48頁 |
| 文件大?。?/td> | 296K |
| 代理商： | UPD17071GB-012-1A7 |
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μ
PD17071GB-012
13
Pin No.
Symbol
Pin Name
Description
I/O Form
52
BEEP
BEEP/ALARM
output
This pin outputs a key-ON confirmation sound (beep output) and
alarm sound.
CMOS
push-pull
output
(1) Beep output
A pulse of 1.5 kHz is output for about 40 ms in the following cases:
When a valid key is input
While time is adjusted up or down in high-speed mode
During seek up/down
(2) Alarm sound output
When the time reaches the alarm time set, a 3 kHz pulse is
intermittently output approximately every 64 ms, five times after 1
second.
The alarm sound is output for 10 minutes from the start of output,
or until it is canceled.
53
54
AREA0
AREA1
Destination
region setting
input
These pins input setting for the destination region.
The setting of these pins is read only on application of V
DD
(power-
ON reset) or when the signal input to the CE pin goes high (CE
reset); otherwise, it is ignored.
Input a signal to these pins as follows:
Input
AREA0
AREA1
Destination region
0
0
Japan
0
1
U.S.A.
1
0
Europe 1
1
1
Europe 2
(0: Low level, 1: High level)
When initialization diode switch CHINA_BAND = 1, however, the
setting is invalid, and the destination region is China.
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