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UPD4726 数据表(PDF) 2 Page - NEC

部件名 UPD4726
功能描述  RS-232 LINE DRIVER/RECEIVER
Download  12 Pages
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制造商  NEC [NEC]
网页  http://www.nec.com/
标志 NEC - NEC

UPD4726 数据表(HTML) 2 Page - NEC

  UPD4726 Datasheet HTML 1Page - NEC UPD4726 Datasheet HTML 2Page - NEC UPD4726 Datasheet HTML 3Page - NEC UPD4726 Datasheet HTML 4Page - NEC UPD4726 Datasheet HTML 5Page - NEC UPD4726 Datasheet HTML 6Page - NEC UPD4726 Datasheet HTML 7Page - NEC UPD4726 Datasheet HTML 8Page - NEC UPD4726 Datasheet HTML 9Page - NEC Next Button
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µPD4726
2
BLOCK DIAGRAM/PIN CONFIGURATION (Top View)
Notes 1. VDD and VSS output internally boosted voltages. Do not connect a load directly to these pins.
2. It is recommended that capacitors having a breakdown voltage of 20 V or higher be used as C1 through
C5. Inserting a bypass capacitor of 0.1 to 1
µF in between VCC and GND is also recommended.
3. Be sure to connect all the GND pins. Especially, make sure that pin 31 is connected; otherwise, the
µPD4726 will not operate normally. Be sure to leave the NC pins (pins 5 and 7) open.
4. The pull-up resistors for DIN1 through DIN4 and STBY and the pull-down resistor for EN are active resistors.
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
STBY
GND
EN
DOUT1
DOUT2
DOUT3
DOUT4
RIN1
RIN2
RIN3
RIN4
RIN5
RIN6
RIN7
1
2
3
4
5
6
7
C3
C4
C1
+
+
C2
+
+
+10 V
−10 V
+5 V
8
9
10
11
12
13
14
15
16
17
18
DIN1
DIN2
DIN3
DIN4
ROUT1
ROUT2
ROUT3
ROUT4
ROUT5
ROUT6
ROUT7
To internal
circuit
VDD
C1
+
VCC
C1
-
N.C.
GND
N.C.
C4
+
GND
C4
-
VSS
To internal
circuit


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