ST3222 Просмотр технического описания (PDF) - STMicroelectronics
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ST3222 Datasheet PDF : 9 Pages
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ST3222
PIN CONFIGURATION
SO-18
TSSOP20
PIN DESCRIPTION
PlN N° (SO-18)
1
PlN N° (TSSP20)
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
14
13
15
14
16
15
17
16
18
17
19
18
20
SYMBOL
EN
C1+
V+
C1-
C2+
C2-
V-
T2OUT
R2IN
R2OUT
NC
T2IN
T1IN
NC
R1OUT
R1IN
T1OUT
GND
VCC
SHDN
NAME AND FUNCTION
Receiver Enable Control. Drive low for normal
operation. Drive high to force the receivers outputs
(R_OUT) into a high-impedance state.
Positive Terminal for the first Charge Pump
Capacitor
5.5V Generated By The Charge Pump.
Negative Terminal for the first Charge Pump
Capacitor
Positive Terminal for the second Charge Pump
Capacitor
Negative Terminal for the second Charge Pump
Capacitor
-5.5V Generated By The Charge Pump.
Second Transmitter Output Voltage
Second Receiver Input Voltage
Second Receiver Output Voltage
Not Connected
Second Transmitter Input Voltage
First Transmitter Input Voltage
Not Connected
First Receiver Output Voltage
First Receiver Input Voltage
First Transmitter Output Voltage
Ground
Supply Voltage
Active Low Shutdown Control Input. Drive Low To
Shut-down Trnasmittes And Charge Pump
2/9
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