1
FN4910.18
ICL3221E, ICL3222E, ICL3223E,
ICL3232E, ICL3241E, ICL3243E
15kV ESD Protected, +3V to +5.5V,
1Microamp, 250kbps, RS-232
Transmitters/Receivers
The Intersil ICL32XXE devices are 3.0V to 5.5V powered
RS-232 transmitters/receivers which meet ElA/TIA-232 and
V.28/V.24 specifications, even at V
CC
= 3.0V. Additionally,
they provide
15kV ESD protection (IEC61000-4-2 Air Gap
and Human Body Model) on transmitter outputs and receiver
inputs (RS-232 pins). Targeted applications are PDAs,
Palmtops, and notebook and laptop computers where the
low operational, and even lower standby, power
consumption is critical. Efficient on-chip charge pumps,
coupled with manual and automatic powerdown functions
(except for the ICL3232E), reduce the standby supply
current to a 1A trickle. Small footprint packaging, and the
use of small, low value capacitors ensure board space
savings as well. Data rates greater than 250kbps are
guaranteed at worst case load conditions. This family is fully
compatible with 3.3V-only systems, mixed 3.3V and 5.0V
systems, and 5.0V-only systems.
The ICL324XE are 3-driver, 5-receiver devices that provide a
complete serial port suitable for laptop or notebook
computers. Both devices also include noninverting always-
active receivers for "wake-up" capability.
The ICL3221E, ICL3223E and ICL3243E, feature an
automatic powerdown function which powers down the on-
chip power-supply and driver circuits. This occurs when an
attached peripheral device is shut off or the RS-232 cable is
removed, conserving system power automatically without
changes to the hardware or operating system. These
devices power up again when a valid RS-232 voltage is
applied to any receiver input.
Table 1 summarizes the features of the devices represented
by this data sheet, while Application Note AN9863
summarizes the features of each device comprising the
ICL32XXE 3V family.
Features
Pb-free Available (RoHS Compliant) (See Ordering Info)
ESD Protection for RS-232 I/O Pins to
15kV (IEC61000)
Drop in Replacements for MAX3221E, MAX3222E,
MAX3223E, MAX3232E, MAX3241E, MAX3243E,
SP3243E
ICL3221E is a Low Power, Pin Compatible Upgrade for 5V
MAX221E
ICL3222E is a Low Power, Pin Compatible Upgrade for 5V
MAX242E, and SP312E
ICL3232E is a Low Power Upgrade for HIN232E, ICL232
and Pin Compatible Competitor Devices
RS-232 Compatible with V
CC
= 2.7V
Meets EIA/TIA-232 and V.28/V.24 Specifications at 3V
Latch-Up Free
On-Chip Voltage Converters Require Only Four External
0.1F Capacitors
Manual and Automatic Powerdown Features
Guaranteed Mouse Driveability (ICL324XE Only)
Receiver Hysteresis For Improved Noise Immunity
Guaranteed Minimum Data Rate . . . . . . . . . . . . . 250kbps
Wide Power Supply Range . . . . . . . Single +3V to +5.5V
Low Supply Current in Powerdown State. . . . . . . . . . .1A
Applications
Any System Requiring RS-232 Communication Ports
- Battery Powered, Hand-Held, and Portable Equipment
- Laptop Computers, Notebooks, Palmtops
- Modems, Printers and other Peripherals
- Digital Cameras
- Cellular/Mobile Phones
Related Literature
Technical Brief TB363 "Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)"
TABLE 1. SUMMARY OF FEATURES
PART NUMBER
NO. OF
Tx.
NO. OF
Rx.
NO. OF
MONITOR Rx.
(R
OUTB
)
DATA
RATE
(kbps)
Rx. ENABLE
FUNCTION?
READY
OUTPUT?
MANUAL
POWER-
DOWN?
AUTOMATIC
POWERDOWN
FUNCTION?
ICL3221E
1
1
0
250
Yes
No
Yes
Yes
ICL3222E
2
2
0
250
Yes
No
Yes
No
ICL3223E
2
2
0
250
Yes
No
Yes
Yes
ICL3232E
2
2
0
250
No
No
No
No
ICL3241E
3
5
2
250
Yes
No
Yes
No
ICL3243E
3
5
1
250
No
No
Yes
Yes
Data Sheet
March 8, 2005
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
|
Intersil (and design) is a trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2000-2005. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
2
FN4910.18
March 8, 2005
Ordering Information
(NOTE 1)
PART NO.
TEMP.
(C)
PACKAGE
PKG.
DWG. #
ICL3221ECA
0 to 70 16 Ld SSOP
M16.209
ICL3221ECAZ (Note 2) 0 to 70 16 Ld SSOP (Pb-free)
M16.209
ICL3221ECAZA
(Note 2)
0 to 70 16 Ld SSOP (Pb-free)
M16.209
ICL3221ECV
0 to 70 16 Ld TSSOP
M16.173
ICL3221ECVZ (Note 2) 0 to 70 16 Ld TSSOP (Pb-free)
M16.173
ICL3221EIA
-40 to 85 16 Ld SSOP
M16.209
ICL3221EIAZ (Note 2) -40 to 85 16 Ld SSOP (Pb-free)
M16.209
ICL3221EIV
-40 to 85 16 Ld TSSOP
M16.173
ICL3221EIVZ (Note 2) -40 to 85 16 Ld TSSOP (Pb-free)
M16.173
ICL3222ECA
0 to 70 20 Ld SSOP
M20.209
ICL3222ECAZ (Note 2) 0 to 70 20 Ld SSOP (Pb-free)
M20.209
ICL3222ECP
0 to 70 18 Ld PDIP
E18.3
ICL3222ECV
0 to 70 20 Ld TSSOP
M20.173
ICL3222ECVZ (Note 2) 0 to 70 20 Ld TSSOP (Pb-free)
M20.173
ICL3222EIA
-40 to 85 20 Ld SSOP
M20.209
ICL3222EIAZ (Note 2) -40 to 85 20 Ld SSOP (Pb-free)
M20.209
ICL3222EIB
-40 to 85 18 Ld SOIC
M18.3
ICL3222EIBZ (Note 2) -40 to 85 18 Ld SOIC (Pb-free)
M18.3
ICL3222EIV
-40 to 85 20 Ld TSSOP
M20.173
ICL3222EIVZ (Note 2) -40 to 85 20 Ld TSSOP (Pb-free)
M20.173
ICL3223ECA
0 to 70 20 Ld SSOP
M20.209
ICL3223ECAZ (Note 2) 0 to 70 20 Ld SSOP (Pb-free)
M20.209
ICL3223ECV
0 to 70 20 Ld TSSOP
M20.173
ICL3223ECVZ (Note 2) 0 to 70 20 Ld TSSOP (Pb-free)
M20.173
ICL3223EIA
-40 to 85 20 Ld SSOP
M20.209
ICL3223EIAZ (Note 2) -40 to 85 20 Ld SSOP (Pb-free)
M20.209
ICL3223EIV
-40 to 85 20 Ld TSSOP
M20.173
ICL3223EIVZ (Note 2) -40 to 85 20 Ld TSSOP (Pb-free)
M20.173
ICL3232ECA
0 to 70 16 Ld SSOP
M16.209
ICL3232ECAZ (Note 2) 0 to 70 16 Ld SSOP (Pb-free)
M16.209
ICL3232ECB
0 to 70 16 Ld SOIC
M16.3
ICL3232ECBZ (Note 2) 0 to 70 16 Ld SOIC (Pb-free)
M16.3
ICL3232ECBN
0 to 70 16 Ld SOIC (N)
M16.15
ICL3232ECBNZ
(Note 2)
0 to 70 16 Ld SOIC (N) (Pb-free) M16.15
ICL3232ECV-16
0 to 70 16 Ld TSSOP
M16.173
ICL3232ECV-16Z
(Note 2)
0 to 70 16 Ld TSSOP (Pb-free)
M16.173
ICL3232ECV-20
0 to 70 20 Ld TSSOP
M20.173
ICL3232ECV-20Z
(Note 2)
0 to 70 20 Ld TSSOP (Pb-free)
M20.173
ICL3232EIA
-40 to 85 16 Ld SSOP
M16.209
ICL3232EIAZ (Note 2) -40 to 85 16 Ld SSOP (Pb-free)
M16.209
ICL3232EIB
-40 to 85 16 Ld SOIC
M16.3
ICL3232EIBZ (Note 2) -40 to 85 16 Ld SOIC (Pb-free)
M16.3
ICL3232EIBNZ (Note 2) -40 to 85 16 Ld SOIC (N) (Pb-free) M16.15
ICL3232EIV-16
-40 to 85 16 Ld TSSOP
M16.173
ICL3232EIV-16Z
(Note 2)
-40 to 85 16 Ld TSSOP (Pb-free)
M16.173
ICL3232EIV-20
-40 to 85 20 Ld TSSOP
M20.173
ICL3232EIV-20Z
(Note 2)
-40 to 85 20 Ld TSSOP (Pb-free)
M20.173
ICL3241ECA
0 to 70 28 Ld SSOP
M28.209
ICL3241ECAZ (Note 2) 0 to 70 28 Ld SSOP (Pb-free)
M28.209
ICL3241ECB
0 to 70 28 Ld SOIC
M28.3
ICL3241ECBZ (Note 2) 0 to 70 28 Ld SOIC (Pb-free)
M28.3
ICL3241ECV
0 to 70 28 Ld TSSOP
M28.173
ICL3241ECVZ (Note 2) 0 to 70 28 Ld TSSOP (Pb-free)
M28.173
ICL3241EIA
-40 to 85 28 Ld SSOP
M28.209
ICL3241EIAZ (Note 2) -40 to 85 28 Ld SSOP (Pb-free)
M28.209
ICL3241EIB
-40 to 85 28 Ld SOIC
M28.3
ICL3241EIBZ (Note 2) -40 to 85 28 Ld SOIC (Pb-free)
M28.3
ICL3241EIV
-40 to 85 28 Ld TSSOP
M28.173
ICL3241EIVZ (Note 2) -40 to 85 28 Ld TSSOP (Pb-free)
M28.173
ICL3243ECA
0 to 70 28 Ld SSOP
M28.209
ICL3243ECAZ (Note 2) 0 to 70 28 Ld SSOP (Pb-free)
M28.209
ICL3243ECB
0 to 70 28 Ld SOIC
M28.3
ICL3243ECBZ (Note 2) 0 to 70 28 Ld SOIC (Pb-free)
M28.3
ICL3243ECV
0 to 70 28 Ld TSSOP
M28.173
ICL3243ECVZA
(Note 2)
0 to 70 28 Ld TSSOP (Pb-free)
M28.173
ICL3243ECVZ (Note 2) 0 to 70 28 Ld TSSOP (Pb-free)
M28.173
ICL3243EIA
-40 to 85 28 Ld SSOP
M28.209
ICL3243EIAZ (Note 2) -40 to 85 28 Ld SSOP (Pb-free)
M28.209
ICL3243EIV
-40 to 85 28 Ld TSSOP
M28.173
ICL3243EIVZ (Note 2) -40 to 85 28 Ld TSSOP (Pb-free)
M28.173
NOTES:
1. Most surface mount devices are available on tape and reel; add "-T" to suffix.
2. Intersil Pb-free products employ special Pb-free material sets; molding
compounds/die attach materials and 100% matte tin plate termination finish,
which are RoHS compliant and 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-020.
Ordering Information
(Continued)
(NOTE 1)
PART NO.
TEMP.
(C)
PACKAGE
PKG.
DWG. #
ICL3221E, ICL3222E, ICL3223E, ICL3232E, ICL3241E, ICL3243E
3
FN4910.18
March 8, 2005
Pinouts
ICL3221E (SSOP, TSSOP)
TOP VIEW
ICL3222E (PDIP, SOIC)
TOP VIEW
ICL3222E (SSOP, TSSOP)
TOP VIEW
ICL3223E (SSOP, TSSOP)
TOP VIEW
ICL3232E (SOIC, SSOP, TSSOP-16)
TOP VIEW
ICL3232E (TSSOP-20)
TOP VIEW
EN
C1+
V+
C1-
C2+
C2-
V-
R1
IN
FORCEOFF
GND
T1
OUT
FORCEON
T1
IN
R1
OUT
V
CC
INVALID
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
EN
C1+
V+
C1-
C2+
C2-
V-
T2
OUT
R2
IN
SHDN
GND
T1
OUT
R1
IN
R1
OUT
T2
IN
V
CC
T1
IN
R2
OUT
18
17
16
15
14
13
12
11
10
1
2
3
4
5
6
7
8
9
EN
C1+
V+
C1-
C2+
C2-
V-
T2
OUT
R2
IN
SHDN
GND
T1
OUT
R1
IN
R1
OUT
T1
IN
NC
V
CC
NC
T2
IN
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
R2
OUT
EN
C1+
V+
C1-
C2+
C2-
V-
T2
OUT
R2
IN
FORCEOFF
GND
T1
OUT
R1
IN
R1
OUT
T1
IN
INVALID
V
CC
FORCEON
T2
IN
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
R2
OUT
C1+
V+
C1-
C2+
C2-
V-
T2
OUT
R2
IN
V
CC
T1
OUT
R1
IN
R1
OUT
T1
IN
R2
OUT
GND
T2
IN
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
NC
C1+
V+
C1-
C2+
C2-
V-
T2
OUT
R2
IN
NC
GND
T1
OUT
R1
IN
R1
OUT
T1
IN
NC
V
CC
T2
IN
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
NC
R2
OUT
ICL3221E, ICL3222E, ICL3223E, ICL3232E, ICL3241E, ICL3243E
4
FN4910.18
March 8, 2005
ICL3241E (SOIC, SSOP, TSSOP)
TOP VIEW
ICL3243E (SOIC, SSOP, TSSOP)
TOP VIEW
Pinouts
(Continued)
C2+
C2-
V-
R1
IN
R2
IN
R3
IN
R4
IN
R5
IN
T1
OUT
T3
OUT
T3
IN
T2
IN
T1
IN
C1+
V
CC
GND
C1-
EN
R1
OUTB
R1
OUT
R2
OUT
R3
OUT
R4
OUT
R5
OUT
V+
SHDN
R2
OUTB
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
T2
OUT
C2+
C2-
V-
R1
IN
R2
IN
R3
IN
R4
IN
R5
IN
T1
OUT
T3
OUT
T3
IN
T2
IN
T1
IN
C1+
V
CC
GND
C1-
FORCEON
INVALID
R1
OUT
R2
OUT
R3
OUT
R4
OUT
R5
OUT
V+
FORCEOFF
R2
OUTB
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
T2
OUT
Pin Descriptions
PIN
FUNCTION
V
CC
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.
T
IN
TTL/CMOS compatible transmitter Inputs.
T
OUT
15kV ESD Protected
,
RS-232 level (nominally
5.5V) transmitter outputs.
R
IN
15kV ESD Protected
,
RS-232 compatible receiver inputs.
R
OUT
TTL/CMOS level receiver outputs.
R
OUTB
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
Active low receiver enable control; doesn't disable R
OUTB
outputs.
SHDN
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 powerdown circuitry thereby keeping transmitters active. (FORCEOFF must be high).
ICL3221E, ICL3222E, ICL3223E, ICL3232E, ICL3241E, ICL3243E
5
FN4910.18
March 8, 2005
Typical Operating Circuits
ICL3221E
ICL3222E
15
V
CC
T1
OUT
T1
IN
T
1
0.1F
+0.1F
+
0.1F
11
13
2
4
3
7
V+
V-
C1+
C1-
C2+
C2-
+
0.1F
5
6
R1
OUT
R1
IN
R
1
8
9
5k
C
1
C
2
+ C
3
C
4
EN
1
GND
+3.3V
+
0.1F
14
TTL/CMOS
LOGIC LEVELS
RS-232
LEVELS
FORCEON
FORCEOFF
12
16
V
CC
10
INVALID
TO POWER
CONTROL LOGIC
+
C
3
(OPTIONAL CONNECTION, NOTE)
NOTE: The negative terminal of C
3
can be connected to either V
CC
or GND
17
V
CC
T1
OUT
T2
OUT
T1
IN
T2
IN
T
1
T
2
0.1F
+
0.1F
+
0.1F
12
11
15
8
2
4
3
7
V+
V-
C1+
C1-
C2+
C2-
+
0.1F
5
6
R1
OUT
R1
IN
14
5k
R2
OUT
R2
IN
9
10
5k
13
C
1
C
2
+ C
3
C
4
EN
SHDN
1
GND
18
+3.3V
+
0.1F
16
V
CC
TTL/CMOS
LOGIC LEVELS
RS-232
LEVELS
R
1
R
2
+
C
3
(OPTIONAL CONNECTION, NOTE)
NOTE: The negative terminal of C
3
can be connected to either V
CC
or GND
ICL3221E, ICL3222E, ICL3223E, ICL3232E, ICL3241E, ICL3243E
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