參數(shù)資料
型號(hào): UPD75104GF
廠商: NEC Corp.
英文描述: 4-BIT SINGLE-CHIP MICROCOMPUTER
中文描述: 4位單片機(jī)
文件頁數(shù): 45/70頁
文件大?。?/td> 535K
代理商: UPD75104GF
μ
PD75104, 75106, 75108
45
10.5
PUSHBUTTON TELEPHONE
Filter
PD75108
μ
Comparator
input
SIO
INT
TO
Code ROM
Piezoelectric
buzzer
Switch
RAM
PD4464
LED indicator
Battery
check
LCD indicator
LCD controller/
driver
μ
High-
current
output
Hook switch
To main
equipment
LED
indicator
Key
matrix
Data
receiver
circuit
Data
transmitter
circuit
TO
PD75108
μ
Filter
SIO
PD7228G
μ
LCD
controller/
driver
LCD indicator
Microphone
Speaker
Transmitter/
receiver
MPX
High-
current
output
Transmitter/
receiver/
speaker
selector
Communication
circuit
Speaker
amplifier
Microphone
amplifier
Call sound
10.6
DISPLAY PAGER
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