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SP3220EUEY-L-TR Datasheet(PDF) 6 Page - Exar Corporation

Part No. SP3220EUEY-L-TR
Description  3.0V to 5.5V RS-232 Driver/Receiver Pair
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Maker  EXAR [Exar Corporation]
Homepage  http://www.exar.com
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SP3220EUEY-L-TR Datasheet(HTML) 6 Page - Exar Corporation

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Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
SP3220E_EB_EU_102_102016
Table 1. Device Pin Description
NAME
FUNCTION
PIN NUMBER
EN
Receiver Enable. Apply Logic LOW for normal operation.
Apply logic HIGH to disable the receiver outputs (high-Z state)
1
C1+
Positive terminal of the voltage doubler charge-pump capacitor
2
V+
+5.5V output generated by the charge pump
3
C1-
Negative terminal of the voltage doubler charge-pump capacitor
4
C2+
Positive terminal of the inverting charge-pump capacitor
5
C2-
Negative terminal of the inverting charge-pump capacitor
6
V-
-5.5V output generated by the charge pump
7
R
1IN
RS-232 receiver input
8
R
1OUT
TTL/CMOS receiver output
9
T
1IN
TTL/CMOS driver input
11
T
1OUT
RS-232 driver output.
13
GND
Ground
14
V
CC
+3.0V to +5.5V supply voltage
15
SHDN
Shutdown Control Input. Drive HIGH for normal device operation.
Drive LOW to shutdown the drivers (high-Z output) and the on-
board power supply
16
N.C.
No Connect
10, 12
PIN FUNCTION


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