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| 型號： | UPD178024GC |
| 廠商： | NEC Corp. |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| 中文描述： | 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存 |
| 文件頁數(shù)： | 7/98頁 |
| 文件大?。?/td> | 467K |
| 代理商： | UPD178024GC |
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Data Sheet U14608EJ1V0DS00
7
μ
PD178024GC-051
Pin No.
Symbol
Pin Name
Description
I/O Type
7
PSI
Servo IC serial
data signal input
This pin inputs a serial data signal from the servo IC (
μ
PD63702)
of the CD player (CDC-01KG).
Pull up this pin externally.
Input
8
PSO
Servo IC serial
data signal output
This pin outputs a serial data signal to the servo IC (
μ
PD63702) of
the CD player (CDC-01KG).
CMOS
push-pull
output
9
SCK
Servo IC serial
clock signal output
This pin outputs a serial clock signal to the servo IC (
μ
PD63702)
of the CD player (CDC-01KG).
CMOS
push-pull
output
These pins output spectrum analyzer band select signals to a
bandpass filter IC (BA3835F).
Connect these pins to the A to C pins (pins 10 to 12) of the
bandpass filter IC (BA3835F).
These pins are used to select the audio frequency band to be input
to the SPEC IN pin.
The correspondence between these pins, the audio frequency
band to be selected, and spectrum analyzer display segment are
as follows:
SPEC
A
SPEC
B
SPEC
C
Audio Frequency
Band
Spectrum Analyzer
Display Segment
0
0
1
105 Hz
A1 to A10
0
1
0
340 Hz
B1 to B10
1
0
0
1 kHz
C1 to C10
1
1
0
3.4 kHz
D1 to D10
1
1
1
10.5 kHz
E1 to E10
(0: Low level, 1: High level)
In the power-on status, the audio frequency band to be selected is
changed every 10 ms and output as illustrated below.
SPEC A
SPEC B
SPEC C
10 ms 10 ms 10 ms 10 ms 10 ms
10
11
12
SPEC A
SPEC B
SPEC C
Spectrum analyzer
band select signal
output
At all other times, each of these pins outputs a low level.
For spectrum analyzer display, refer to “6. LCD PANEL”.
CMOS
push-pull
output
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| UPD178024GC-051 | 制造商:NEC 制造商全稱:NEC 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLER WITH ON-CHIP PRESCALER, PLL FREQUENCY SYNTHESIZER, AND IF COUNTER FOR AUTOMOTIVE FM/MW/LW RADIO WITH CD PLAYER |
| UPD178024GC-051-8BT | 制造商:NEC 制造商全稱:NEC 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLER WITH ON-CHIP PRESCALER, PLL FREQUENCY SYNTHESIZER, AND IF COUNTER FOR AUTOMOTIVE FM/MW/LW RADIO WITH CD PLAYER |
| UPD178024GF | 制造商:NEC 制造商全稱:NEC 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLER |
| UPD178046 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:UPD178046.178048 Preliminary Product Information | Preliminary Product Information[06/1998] |
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