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ICL3243ECVZ-T Datasheet, PDF (7/33 Pages) Intersil Corporation – ±15kV ESD Protected, +3V to +5.5V, 1μA, 250kbps, RS-232 Transmitters/Receivers
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ICL3221E, ICL3222E, ICL3223E, ICL3232E, ICL3241E, ICL3243E
Pin Configurations (Continued)
ICL3241E
(28 LD SOIC, SSOP, TSSOP)
TOP VIEW
C2+ 1
C2- 2
V- 3
R1IN 4
R2IN 5
R3IN 6
R4IN 7
R5IN 8
T1OUT 9
T2OUT 10
T3OUT 11
T3IN 12
T2IN 13
T1IN 14
28 C1+
27 V+
26 VCC
25 GND
24 C1-
23 EN
22 SHDN
21 R1OUTB
20 R2OUTB
19 R1OUT
18 R2OUT
17 R3OUT
16 R4OUT
15 R5OUT
ICL3243E
(28 LD SOIC, SSOP, TSSOP)
TOP VIEW
C2+ 1
C2- 2
V- 3
R1IN 4
R2IN 5
R3IN 6
R4IN 7
R5IN 8
T1OUT 9
T2OUT 10
T3OUT 11
T3IN 12
T2IN 13
T1IN 14
28 C1+
27 V+
26 VCC
25 GND
24 C1-
23 FORCEON
22 FORCEOFF
21 INVALID
20 R2OUTB
19 R1OUT
18 R2OUT
17 R3OUT
16 R4OUT
15 R5OUT
Pin Descriptions
PIN
FUNCTION
VCC System power supply input (3.0V to 5.5V).
V+
Internally generated positive transmitter supply (+5.5V).
V-
Internally generated negative transmitter supply (-5.5V).
GND Ground connection.
C1+ External capacitor (voltage doubler) is connected to this lead.
C1-
External capacitor (voltage doubler) is connected to this lead.
C2+ External capacitor (voltage inverter) is connected to this lead.
C2-
External capacitor (voltage inverter) is connected to this lead.
TIN
TTL/CMOS compatible transmitter Inputs.
TOUT ±15kV ESD Protected, RS-232 level (nominally ±5.5V) transmitter outputs.
RIN
±15kV ESD Protected, RS-232 compatible receiver inputs.
ROUT TTL/CMOS level receiver outputs.
ROUTB TTL/CMOS level, noninverting, always enabled receiver outputs.
INVALID Active low output that indicates if no valid RS-232 levels are present on any receiver input.
EN
SHDN
Active low receiver enable control; doesn’t disable ROUTB outputs.
Active low input to shut down transmitters and on-board power supply, to place device in low power mode.
FORCEOFF Active low to shut down transmitters and on-chip power supply. This overrides any automatic circuitry and
FORCEON (see Table 2).
FORCEON Active high input to override automatic power-down circuitry thereby keeping transmitters active (FORCEOFF must
be high).
7
FN4910.21
February 22, 2010
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