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| 型號： | UPD178024GC-051 |
| 廠商： | NEC Corp. |
| 元件分類： | 通用總線功能 |
| 英文描述： | 8-BIT SINGLE-CHIP MICROCONTROLLER WITH ON-CHIP PRESCALER, PLL FREQUENCY SYNTHESIZER, AND IF COUNTER FOR AUTOMOTIVE FM/MW/LW RADIO WITH CD PLAYER |
| 中文描述： | 8位單片機(jī)具有片上標(biāo)器，鎖相環(huán)頻率合成器，如柜臺，汽車調(diào)頻/中波/龍運收音機(jī)帶CD播放器 |
| 文件頁數(shù)： | 15/98頁 |
| 文件大?。?/td> | 467K |
| 代理商： | UPD178024GC-051 |
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Data Sheet U14608EJ1V0DS00
15
μ
PD178024GC-051
Pin No.
Symbol
Pin Name
Description
I/O Type
65
LCD STB
LCD driver strobe
signal output
This pin outputs a strobe signal to the LCD driver IC (
μ
PD16431A).
Connect this pin to the STB pin (pin 9) of the LCD driver IC
(
μ
PD16431A).
Data is transferred or received while this pin is low.
Usually, this pin outputs a high level, but in the standby mode, it
outputs a low level.
CMOS
push-pull
output
This pin outputs a chip select signal to the LCD driver IC
(
μ
PD16431A).
Connect this pin to the OE pin (pin 11) of the LCD driver IC
(
μ
PD16431A).
This pin outputs a signal as follows:
LCDCS Pin
LCD Display
0
LCD display off
1
LCD display on
66
LCD CS
LCD driver chip
select signal output
(0: Low level, 1: High level)
CMOS
push-pull
output
67
REM
Remote controller
signal input
This pin inputs a remote controller signal.
This pin supports the
μ
PD6121G remote controller signal
transmitter IC.
Input
68
KEYREQ
LCD driver key
request signal input
This pin inputs a key request signal from the LCD driver IC
(
μ
PD16431A).
Connect this pin to the KEYREQ pin (pin 6) of the LCD driver IC
(
μ
PD16431A).
When this pin inputs a high level, it is assumed that a key is
pressed, and key data is read.
Input
This pin inputs an accessory power signal.
Input a signal to this pin as follows:
ACC Pin
Description
0
Normal operation
1
Standby (low current consumption) operation
(0: Low level, 1: High level)
69
ACC
Accessory power
signal input
For the standby operation, refer to “5. STANDBY FUNCTION”.
Input
This pin inputs a battery power signal.
Input a signal to this pin as follows:
BATT Pin
Description
0
Normal operation
1
Standby (low power consumption) operation
(0: Low level, 1: High level)
70
BATT
Battery power
signal input
For the standby operation, refer to “5. STANDBY FUNCTION”.
Input
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