ILX3221 Datasheet, PDF (2/9 Pages) IK Semicon Co., Ltd – Auto Shutdown function provide low power consumption

ILX3221
Table. 1
PIN DESCRIPTION
Pin
number
01
02
03
04
05
06
07
08
09
Symbol
EN
C1+
V+
C1-
C2+
C2-
V-
RIN
ROUT
10
INVALID
11
TIN
12
FORCEON
13
TOUT
14
GND
15
Vcc
16 _FORCEOFF
Pin description
Receiver enable control input
Positive terminal of the voltage multiplier charge-pump capacitor
Positive voltage multiplier output
Negative terminal of the voltage multiplier charge-pump capacitor
Positive terminal of the voltage multiplier charge-pump capacitor
Negative terminal of the voltage multiplier charge-pump capacitor
Negative voltage multiplier output
RS-232 Receiver data inputs
TTL/CMOS Receiver data output
Output of the valid signal detector. Indicates if a valid RS-232 level is
present on receiver inputs logic “1”.
TTL/CMOS transmitter data input
Autoshutdown mode control input (enable active operation of the IC)
RS-232 transmitter data outputs
Common pin
Supply voltage
Autoshutdown mode control input (switch the IC to low power
consumption mode )
Functional diagram
+
02 _C1+
C1
04 _C1-
+
05 _C2+
C2
06 _C2-
TTL/CMOS ₁₁ ^TIN
input
TTL/CMOS ₀₉ ^ROUT
output
15
Vcc
V+ ⁰³
+ _C3
V- ⁰⁷
C4
+
TOUT _{13 RS-232}
output
RIN ₀₈
5 кОм
RS-232
input
01 _EN
INVALID ¹⁰
12 _FORCEON
FORCEOFF ¹⁶
GND
14
C1 – capacitor 0.1 µF ± 10 % for VCC = 3.0 … 3.6V and
0.047 µF ± 10 % for VCC = 4.5 … 5.5V
С2, С3, С4– capacitors 0.1 µF ± 10 % for VCC = 3.0 … 3.6V and
0.33 µF ± 10 % for VCC = 4.5 … 5.5V
Fig. 3 - Functional diagram
January 2012, Ver. 00