2
Pinout
ICL3238E (SSOP, TSSOP)
TOP VIEW
C2+
C2-
V-
R1IN
R2IN
R3IN
T4IN
T5IN
T1OUT
T3OUT
T3IN
T2IN
T1IN
C1+
VCC
GND
C1-
FORCEON
INVALID
R1OUT
R2OUT
R3OUT
V+
FORCEOFF
R1OUTB
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
T2OUT
T4OUT
T5OUT
Ordering Information
PART NO.
TEMP.
RANGE (oC)
PACKAGE
PKG.
DWG. #
ICL3238ECA
0 to 70
28 Ld SSOP
M28.209
ICL3238ECA-T
0 to 70
28 Ld SSOP
Tape and Reel
M28.209
ICL3238ECAZ
(Note)
0 to 70
28 Ld SSOP
(Pb-Free)
M28.209
ICL3238ECAZ-T
(Note)
0 to 70
28 Ld SSOP
Tape and Reel
(Pb-Free)
M28.209
ICL3238EIA
-40 to 85
28 Ld SSOP
M28.209
ICL3238EIA-T
-40 to 85
28 Ld SSOP
Tape and Reel
M28.209
ICL3238EIAZ
(Note)
-40 to 85
28 Ld SSOP
(Pb-Free)
M28.209
ICL3238EIAZ-T
(Note)
-40 to 85
28 Ld SSOP
Tape and Reel
(Pb-Free)
M28.209
ICL3238EIV-T
-40 to 85
28 Ld TSSOP
Tape and Reel
M28.173
ICL3238EIVZ-T
(Note)
-40 to 85
28 Ld TSSOP
Tape and Reel
(Pb-Free)
M28.173
NOTE:
Intersil Pb-free products employ special Pb-free material sets;
molding compounds/die attach materials and 100% matte tin plate
termination finish, which is compatible with both SnPb and Pb-free
soldering operations. Intersil Pb-free products are MSL classified at
Pb-free peak reflow temperatures that meet or exceed the Pb-free
requirements of IPC/JEDEC J Std-020B.
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 (Note 1).
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.
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 powerdown circuitry thereby keeping transmitters active. (FORCEOFF must be high, Note
1).
NOTE:
1. These input pins incorporate positive feedback resistors. Once the input is driven to a valid logic level, the feedback resistor maintains that logic
level until VCC is removed. Unused transmitter inputs may be left unconnected by the user.
ICL3238E