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UPD4724 数据表(PDF) 2 Page - NEC

部件名 UPD4724
功能描述  RS-232 LINE DRIVER/RECEIVER AT 3.3 V/5 V
Download  16 Pages
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制造商  NEC [NEC]
网页  http://www.nec.com/
标志 NEC - NEC

UPD4724 数据表(HTML) 2 Page - NEC

  UPD4724 Datasheet HTML 1Page - NEC UPD4724 Datasheet HTML 2Page - NEC UPD4724 Datasheet HTML 3Page - NEC UPD4724 Datasheet HTML 4Page - NEC UPD4724 Datasheet HTML 5Page - NEC UPD4724 Datasheet HTML 6Page - NEC UPD4724 Datasheet HTML 7Page - NEC UPD4724 Datasheet HTML 8Page - NEC UPD4724 Datasheet HTML 9Page - NEC Next Button
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2
µPD4724
BLOCK DIAGRAM/PIN CONFIGURATION (TOP VIEW)
C1
+
VDD
VCC
C1
C5
+
GND
C4
+
GND
C4
VSS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
C3
+10 V
C1
C5
+3.3 V
or
+5 V
DIN1
DIN2
DIN3
ROUT1
ROUT2
ROUT3
ROUT4
ROUT5
DOUT1
DOUT2
DOUT3
RIN1
RIN2
RIN3
RIN4
RIN5
Note
EN
VCHA
STBY
–10 V
C2
C4
300
300
300
5.5 k
5.5 k
5.5 k
5.5 k
5.5 k
+
+
+
+
+
C5
Note The pull-up resistors of the driver inputs are active resistors.
Remark 1.
VDD and VSS are pins that output the voltage boosted internally. Don't connect these pins to the
load.
2.
Capacitors with a breakdown voltage of 20 V or higher are recommended for C1 to C5. And it is
recommended to insert the capacitor that is 0.1
µF to 1 µF between VCC and GND.
3.
The capacitor C5 does not have to be connected when the IC is used in 5 V mode (VCHA = L).


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