intersil ICL3224E, ICL3226E, ICL3244E DATA SHEET
®
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ICL3224E, ICL3226E, ICL3244E
Data Sheet February 27, 2006
+/-15kV ESD Protected, +3V to +5.5V,
1Microamp, 250kbps, RS-232
Transceivers with Enhanced Automatic
Powerdown
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
they provide
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 standb y, power consumption
is critical. Efficient on-chip charge pumps, coupled with
manual and enhanced automatic powerdown functions,
reduce the standby supply current to a 1µA 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 ICL3244E is a 3 driver, 5 receiver de vice that provides a
complete serial port suitable for laptop or notebook
computers. It also includes a noninverting always-active
receiver for “wake-up” capability.
These devices, feature an enhanced automatic
powerdown function which powers down the on-chip powersupply and driver circuits. This occurs when all receiver and
transmitter inputs detect no signal transitions for a period of
30 seconds. These devices power back up, automatically,
whenever they sense a transition on any transmitter or
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.
±15kV ESD protection (IEC61000-4-2 Air Gap
= 3.0V. Additionally,
CC
FN4899.6
Features
• Pb-Free Plus Anneal Available (RoHS Compliant)
• ESD Protection for RS-232 I/O Pins to
• Manual and Enhanced Automatic Powerdown Features
• Drop in Replacements for MAX3224E, MAX3226E,
MAX3244E
• Meets EIA/TIA-232 and V.28/V.24 Specifications at 3V
• RS-232 Compatible with VCC = 2.7V
• Latch-Up Fre e
• On-Chip Voltage Converters Require Only Four External
0.1µF Capacitors
• Guaranteed Mouse Driveability (ICL3244E)
• “Ready to Transmit” Indicator Output (ICL3224E/26E)
• Receiver Hysteresis For Improved Noise Immunity
• Guaranteed Minimum Data Rate . . . . . . . . . . . . . 250kbps
• Guaranteed Minimum Slew Rate. . . . . . . . . . . . . . . 6V/µs
• Wide Power Supply Range. . . . . . . . Single +3V to +5.5V
• Low Supply Current in Powerdown State. . . . . . . . . . .1µA
±15kV (IEC61000)
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
ICL3224E 2 2 0 250 No Yes Yes Yes
ICL3226E 1 1 0 250 No Yes Yes Yes
ICL3244E 3 5 1 250 No No Yes Yes
NO. OF
Tx.
NO. OF
Rx.
1
NO. OF
MONITOR Rx.
)
(R
OUTB
DATA
RATE
(kbps)
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or1-888-468-3774
Rx. ENABLE
FUNCTION?
Copyright Intersil Americas Inc. 2000, 2001, 2003-2006. All Rights Reserved.
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
All other trademarks mentioned are the property of their respective owners.
READY
OUTPUT?
MANUAL
POWER-
DOWN?
ENHANCED
AUTOMATIC
POWERDOWN
FUNCTION?
ICL3224E, ICL3226E, ICL3244E
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Ordering Information
PART NO. PART MARKING TEMP. RANGE (°C) PACKAGE PKG. DWG. #
ICL3224ECAZ (Note) 3224ECAZ 0 to 70 20 Ld SSOP (Pb-free) M20.209
ICL3224ECAZ-T (Note) 3224ECAZ 0 to 70 20 Ld SSOP Tape and Reel (Pb-free) M20.209
ICL3224EIA ICL3224EIA -40 to 85 20 Ld SSOP M20.209
ICL3224EIA-T ICL3224EIA -40 to 85 20 Ld SSOP Tape and Reel M20.209
ICL3224EIAZ (Note) 3224EIAZ -40 to 85 20 Ld SSOP (Pb-free) M20.209
ICL3224EIAZ-T (Note) 3224EIAZ -40 to 85 20 Ld SSOP Tape and Reel (Pb-free) M20.209
ICL3226ECA ICL3226ECA 0 to 70 16 Ld SSOP M16.209
ICL3226ECA-T ICL3226ECA 0 to 70 16 Ld SSOP Tape and Reel M16.209
ICL3226ECAZ (Note) 3226ECAZ 0 to 70 16 Ld SSOP (Pb-free) M16.209
ICL3226ECAZ-T 3226ECAZ 0 to 70 16 Ld SSOP Tape and Reel (Pb-free) M16.209
ICL3226EIA ICL3226EIA -40 to 85 16 Ld SSOP M16.209
ICL3226EIA-T ICL3226EIA -40 to 85 16 Ld SSOP Tape and Reel M16.209
ICL3226EIAZ 3226EIAZ -40 to 85 16 Ld SSOP (Pb-free) M16.209
ICL3226EIAZ-T 3226EIAZ -40 to 85 16 Ld SSOP Tape and Reel (Pb-free) M16.209
ICL3244ECA ICL3244ECA 0 to 70 28 Ld SSOP M28.209
ICL3244ECA-T ICL3244ECA 0 to 70 28 Ld SSOP Tape and Reel M28.209
ICL3244ECAZ (Note) ICL3244ECAZ 0 to 70 28 Ld SSOP (Pb-free) M28.209
ICL3244ECAZ-T (Note) ICL3244ECAZ 0 to 70 28 Ld SSOP Tape and Reel (Pb-free) M28.209
ICL3244EIA ICL3244EIA -40 to 85 28 Ld SSOP M28.209
ICL3244EIA-T ICL3244EIA -40 to 85 28 Ld SSOP Tape and Reel M28.209
ICL3244EIAZ (Note) ICL3244EIAZ -40 to 85 28 Ld SSOP (Pb-free) M28.209
ICL3244EIAZ-T (Note) ICL3244EIAZ -40 to 85 28 Ld SSOP Tape and Reel (Pb-free) M28.209
ICL3244EIB ICL3244EIB -40 to 85 28 Ld SOIC M28.3
NOTE: Intersil Pb-free plus anneal 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.
Pinouts
ICL3224E (SSOP)
TOP VIEW
FORCEOFF
READY
C1+
V+
C1-
C2+
C2-
T2
OUT
R2
R2
OUT
1
2
3
4
5
6
V-
7
8
9
IN
10
20
V
19
GND
18
17
T1
R1
16
R1
15
FORCEON
14
T1
13
12
T2
INVALID
11
READY
CC
OUT
IN
OUT
IN
IN
2
R1
ICL3226E (SSOP)
1
C1+
2
3
V+
C1-
4
C2+
5
C2-
6
V-
7
8
IN
TOP VIEW
16
FORCEOFF
V
15
CC
GND
14
13
T1
FORCEON
12
T1
11
INVALID
10
R1
9
OUT
IN
OUT
Pinouts (Continued)
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Pin Descriptions
ICL3224E, ICL3226E, ICL3244E
ICL3244E (SOIC, SSOP)
TOP VIEW
C1+
28
V+
27
V
26
CC
GND
25
C1-
24
FORCEON
23
FORCEOFF
22
INVALID
21
20
R2
R1
19
R2
18
R3
17
16
R4
R5
15
OUTB
OUT
OUT
OUT
OUT
OUT
T1
T2
T3
C2+
R1
R2
R3
R4
R5
OUT
OUT
OUT
T3
T2
T1
C2-
V-
1
2
3
4
IN
5
IN
6
IN
7
IN
8
IN
9
10
11
12
IN
13
IN
14
IN
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.
TTL/CMOS compatible transmitter Input s.
±15kV ESD Protected, RS-232 level (nominally ±5.5V) transmitter outputs.
±15kV ESD Protected, RS-232 compatible receiver inputs.
TTL/CMOS level receiver outputs.
TTL/CMOS level, noninverting, always enabled receiver outputs.
T
R
R
T
IN
OUT
R
IN
OUT
OUTB
INVALID Active low output that indicates if no valid RS-232 levels are present on any receiver input.
READY Active high output that indicates when the ICL32XXE is ready to transmit (i.e., V- ≤ -4V)
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).
3
Typical Operating Circuits
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TTL/CMOS
LOGIC LEVELS
ICL3224E, ICL3226E, ICL3244E
ICL3224E
+3.3V
C
0.1µF
C
0.1µF
T1
T2
R1
R2
1
2
OUT
OUT
+
0.1µF
2
C1+
+
4
C1-
5
C2+
+
6
C2-
13
IN
12
IN
15
1
READY
14
FORCEON
19
V
CC
T
1
T
2
R
1
R
2
FORCEOFF
GND
18
5kΩ
5kΩ
INVALID
V+
V-
3
7
17
8
16
910
20
11
C
3
+
0.1µF
C
4
0.1µF
+
T1
OUT
T2
OUT
RS-232
CC
LEVELS
IN
IN
R1
R2
V
TO POWER
CONTROL LOGIC
+3.3V
TTL/CMOS
LOGIC LEVELS
+
0.1µF
0.1µF
0.1µF
R1
T1
OUT
ICL3226E
2
C
C
C1+
1
+
4
C1-
5
2
C2+
+
6
C2-
11
IN
1
READY
12
FORCEON
15
V
CC
T
1
R
1
FORCEOFF
GND
14
V+
V-
5kΩ
INVALID
3
C
+
0.1µF
7
C
0.1µF
+
13
T1
89
R1
16
V
10
TO POWER
CONTROL LOGIC
3
4
CC
OUT
IN
RS-232
LEVELS
4
ICL3224E, ICL3226E, ICL3244E
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Typical Operating Circuits (Continued)
+3.3V
C
0.1µF
C
0.1µF
T1
T2
T3
R2
OUTB
TTL/CMOS
LOGIC LEVELS
R1
R2
R3
R4
R5
OUT
OUT
OUT
OUT
OUT
ICL3244E
+
0.1µF
28
1
2
C1+
+
24
C1-
1
C2+
+
2
C2-
14
IN
13
IN
12 11
IN
20
19
23
FORCEON
26
V
CC
T
1
T
2
T
3
R
1
R
2
R
3
R
4
R
5
V+
V-
5kΩ
5kΩ
5kΩ
5kΩ
5kΩ
27
C
3
+
0.1µF
3
C
4
0.1µF
+
9
T1
OUT
10
T2
T3
4
R1
518
R2
617
R3
716
R4
815
R5
OUT
OUT
IN
IN
IN
IN
IN
RS-232
LEVELS
RS-232
LEVELS
V
CC
TO POWER
CONTROL LOGIC
22
FORCEOFF
21
INVALID
GND
25
5
ICL3224E, ICL3226E, ICL3244E
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m
Absolute Maximum Ratings Thermal Information
VCC to Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V
V+ to Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 7V
V- to Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.3V to -7V
V+ to V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14V
Input Voltages
, FORCEOFF, FORCEON. . . . . . . . . . . . . . . . . . . -0.3V to 6V
T
IN
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±25V
R
IN
Output Voltages
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±13.2V
T
OUT
, INVALID, READY. . . . . . . . . . . . . . . . . -0.3V to VCC +0.3V
R
OUT
Short Circuit Duration
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
T
OUT
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . See Specification Table
Operating Conditions
Temperature Range
ICL32XXEC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
ICL32XXEI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to 85°C
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied .
NOTE:
is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
1. θ
JA
Thermal Resistance (Typical, Note 1)
28 Ld SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . 75
16 Ld SSOP Package . . . . . . . . . . . . . . . . . . . . . . . 140
20 Ld SSOP Package . . . . . . . . . . . . . . . . . . . . . . . 125
28 Ld SSOP Package . . . . . . . . . . . . . . . . . . . . . . . 100
Maximum Junction Temperature (Plastic Package) . . . . . . . 150°C
Maximum Storage Temperature Range. . . . . . . . . . .-65°C to 150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300°C
(Lead Tips Only)
θ
JA
(°C/W)
Electrical Specifications Test Conditions: V
Typicals are at T
PARAMETER TEST CONDITIONS
DC CHARACTERISTICS
Supply Current, Automatic
Powerdown
Supply Current, Powerdown FORCEOFF
Supply Current,
Automatic Powerdown Disabled
LOGIC AND TRANSMITTER INPUTS AND RECEIVER OUTPUTS
Input Logic Threshold Low T
Input Logic Threshold High T
Transmitter Input Hysteresis 25 - 0.5 - V
Input Leakage Current T
Output Leakage Current FORCEOFF
Output Voltage Low I
Output Voltage High I
RECEIVER INPUTS
Open, FORCEON = GND, FORCEOFF =V
All R
IN
All Outputs Unloaded, FORCEON = FORCEOFF
, FORCEON, FORCEOFF Full - - 0.8 V
IN
, FORCEON, FORCEOFF VCC = 3.3V Full 2.0 - - V
IN
, FORCEON, FORCEOFF Full - ±0.01 ±1.0 µA
IN
= 1.6mA Full - - 0.4 V
OUT
= -1.0mA Full V
OUT
= 3V to 5.5V, C1 - C4 = 0.1µF; Unless Otherwise Specified.
CC
= 25°C
A
TEMP
(°C) MIN TYP MAX UNITS
CC
= GND 25 - 1.0 10 µA
=V
CC
= 5.0V Full 2.4 - - V
V
CC
= GND, ICL3244E Only Full - ±0.05 ±10 µA
25 - 1.0 10 µA
25 - 0.3 1.0 mA
CC
-0.6 V
-0.1 - V
CC
Input Voltage Range Full -25 - 25 V
Input Threshold Low V
= 3.3V 25 0.6 1.2 - V
CC
= 5.0V 25 0.8 1.5 - V
V
CC
6
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