intersil ICL3225E, ICL3227E, ICL3245E DATA SHEET
®
www.BDTIC.com/Intersil
ICL3225E, ICL3227E, ICL3245E
Data Sheet February 27, 2006
±15kV ESD Protected, +3V to +5.5V,
1Microamp, 1Mbps, 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 standby, 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 1Mbps 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 ICL3245E is a 3 driver, 5 receiver device 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
30s. These devices power back up, automatically, whenever
they sense a transition on any transmitter or receiver input.
Table 1 summarizes the features of the device 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
FN4900.9
Features
• Pb-Free Plus Anneal Available (RoHS Compliant)
(see Ordering Info)
• ESD Protection for RS-232 I/O Pins to
• Manual and Enhanced Automatic Powerdown Features
• Drop in Replacements for MAX3225E, MAX3227E,
MAX3245E
• RS-232 Compatible with V
• Meets EIA/TIA-232 and V.28/V.24 Specifications at 3V
• Latch-Up Free
• On-Chip Voltage Converters Require Only Four External
0.1µF Capacitors
• Guaranteed Mouse Driveability (ICL3245E)
• “Ready to Transmit” Indicator Output
(ICL3225E/ICL3227E)
• Receiver Hysteresis For Improved Noise Immunity
• Guaranteed Minimum Data Rate . . . . . . . . . . . . . . 1Mbps
• Low Skew at Transmitter/Receiver Input Trip Points . . . 10ns
• Guaranteed Minimum Slew Rate . . . . . . . . . . . . . . 24V/µs
• Wide Power Supply Range . . . . . . . Single +3V to +5.5V
• Low Supply Current in Powerdown State. . . . . . . . . . .1µA
CC
= 2.7V
±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
TABLE 1. SUMMARY OF FEATURES
NO. OF
PART NUMBER
NO. OF
ICL3225E 2 2 0 1000 No Yes Yes Yes
ICL3227E 1 1 0 1000 No Yes Yes Yes
ICL3245E 3 5 1 1000 No No Yes Yes
Tx.
NO. OF
Rx.
1
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?
ICL3225E, ICL3227E, ICL3245E
www.BDTIC.com/Intersil
Ordering Information
TEMP.
PAR T
PART NO. *
MARKING
ICL3225ECA ICL3225ECA 0 to 70 20 Ld SSOP M20.209
ICL3225ECAZ
ICL3225ECAZ 0 to 70 20 Ld SSOP
(Note 1)
ICL3225ECP ICL3225ECP 0 to 70 20 Ld PDIP E20.3
ICL3225ECPZ
3225ECPZ 0 to 70 20 Ld PDIP**
(Note 1)
ICL3225EIA ICL3225EIA -40 to 85 20 Ld SSOP M20.209
ICL3225EIAZ
ICL3225EIAZ -40 to 85 20 Ld SSOP
(Note 1)
ICL3227ECA ICL3227ECA 0 to 70 16 Ld SSOP M16.209
ICL3227ECAZA
3227ECAZ 0 to 70 16 Ld SSOP
(Note 1)
ICL3227EIA ICL3227EIA -40 to 85 16 Ld SSOP M16.209
ICL3227EIAZA
3227EIAZ -40 to 85 16 Ld SSOP
(Note 1)
ICL3245ECA ICL3245ECA 0 to 70 28 Ld SSOP M28.209
ICL3245ECAZ
ICL3245ECAZ 0 to 70 28 Ld SSOP
(Note 1)
ICL3245ECB ICL3245ECB 0 to 70 28 Ld SOIC M28.3
RANGE
(°C) PACKAGE
(Pb-free)
(Pb-free)
(Pb-free)
(Pb-free)
(Pb-free)
(Pb-Free)
PKG.
DWG. #
M20.209
E20.3
M20.209
M16.209
M16.209
M28.209
Ordering Information (Continued)
TEMP.
PART NO. *
ICL3245ECBZ
MARKING
ICL3245ECBZ 0 to 70 28 Ld SOIC
(Note 1)
ICL3245ECV ICL3245ECV 0 to 70 28 Ld TSSOP M28.173
PAR T
ICL3245ECVZ
ICL3245ECVZ 0 to 70 28 Ld TSSOP
(Note 1)
ICL3245EIA ICL3245EIA -40 to 85 28 Ld SSOP M28.209
ICL3245EIAZ
ICL3245EIAZ -40 to 85 28 Ld SSOP
(Note 1)
ICL3245EIB ICL3245EIB -40 to 85 28 Ld SOIC M28.3
* Most surface mount devices are available on tape and reel; add “-T” to
suffix.
**Pb-free PDIPs can be used for through hole wave solder processing
only. They are not intended for use in Reflow solder processing
applications.
NOTE:
1. 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.
RANGE
(°C) PACKAGE
(Pb-free)
(Pb-free)
(Pb-free)
PKG.
DWG. #
M28.3
M28.173
M28.209
Pinouts
ICL3225E (PDIP, SSOP)
TOP VIEW
READY
T2
R2
C1+
C2+
OUT
R2
OUT
V+
C1-
C2-
1
2
3
4
5
6
V-
7
8
9
IN
10
FORCEOFF
20
V
19
CC
GND
18
T1
17
R1
16
R1
15
FORCEON
14
T1
13
12
T2
INVALID
11
OUT
IN
OUT
IN
IN
READY
C1+
V+
C1-
C2+
C2-
R1
ICL3227E (SSOP)
TOP VIEW
1
2
3
4
5
6
V-
7
8
IN
FORCEOFF
16
V
15
CC
GND
14
T1
13
FORCEON
12
T1
11
INVALID
10
R1
9
OUT
IN
OUT
2
FN4900.9
February 27, 2006
ICL3225E, ICL3227E, ICL3245E
www.BDTIC.com/Intersil
Pinouts (Continued)
ICL3245E (SOIC, SSOP, TSSOP)
TOP VIEW
28
C1+
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 Descriptions
PIN FUNCTION
V
CC
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
T
OUT
R
R
OUT
R
OUTB
INVALID
READY Active high output that indicates when the ICL32XXE is ready to transmit (i.e., V- ≤ -4V).
FORCEOFF
FORCEON Active high input to override automatic powerdown circuitry thereby keeping transmitters active. (FORCEOFF
System power supply input (3.0V to 5.5V).
TTL/CMOS compatible transmitter Inputs.
IN
±15kV ESD Protected, RS-232 level (nominally ±5.5V) transmitter outputs.
±15kV ESD Protected, RS-232 compatible receiver inputs.
IN
TTL/CMOS level receiver outputs.
TTL/CMOS level, noninverting, always enabled receiver outputs.
Active low output that indicates if no valid RS-232 levels are present on any receiver input.
Active low to shut down transmitters and on-chip power supply. This overrides any automatic circuitry and FORCEON (see Table 2).
must be high).
3
FN4900.9
February 27, 2006
Typical Operating Circuits
www.BDTIC.com/Intersil
ICL3225E, ICL3227E, ICL3245E
ICL3225E
TTL/CMOS
LOGIC LEVELS
+3.3V
LOGIC LEVELS
+
TTL/CMOS
0.1µF
+3.3V
0.1µF
0.1µF
R1
R2
C
C
T1
T2
0.1µF
0.1µF
R1
1
2
OUT
OUT
C
C
T1
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
V+
V-
5kΩ
5kΩ
INVALID
3
C
3
+
0.1µF
7
C
4
0.1µF
+
17
T1
8
T2
16
R1
910
R2
20
V
CC
11
TO POWER
CONTROL LOGIC
OUT
OUT
IN
IN
RS-232
LEVELS
ICL3227E
2
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
FN4900.9
February 27, 2006
ICL3225E, ICL3227E, ICL3245E
www.BDTIC.com/Intersil
Typical Operating Circuits (Continued)
+3.3V
LOGIC LEVELS
+
0.1µF
TTL/CMOS
0.1µF
0.1µF
R2
R1
C
C
T1
T2
T3
OUTB
ICL3245E
28
1
2
IN
IN
IN
OUT
C1+
+
24
C1-
1
C2+
+
2
C2-
14
13
12 11
20
19
26
V
CC
T
1
T
2
T
3
R
1
V+
V-
5kΩ
27
C
3
+
0.1µF
3
C
4
0.1µF
+
9
T1
OUT
10
T2
T3
4
R1
OUT
OUT
IN
RS-232
LEVELS
R2
OUT
R3
OUT
R4
OUT
R5
OUT
V
CC
TO POWER
CONTROL LOGIC
23
FORCEON
22
FORCEOFF
21
INVALID
R
2
R
3
R
4
R
5
GND
518
R2
5kΩ
5kΩ
5kΩ
5kΩ
25
IN
617
R3
716
R4
815
R5
RS-232
IN
LEVELS
IN
IN
5
FN4900.9
February 27, 2006
ICL3225E, ICL3227E, ICL3245E
www.BDTIC.com/Intersil
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
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:
2. θ
is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
JA
Thermal Resistance (Typical, Note 2)
20 Ld PDIP Package* . . . . . . . . . . . . . . . . . . . . . . . 80
28 Ld SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . 75
16 Ld SSOP Package . . . . . . . . . . . . . . . . . . . . . . . 145
20 Ld SSOP Package . . . . . . . . . . . . . . . . . . . . . . . 135
28 Ld SSOP and TSSOP Packages . . . . . . . . . . . . 100
Maximum Junction Temperature (Plastic Package) . . . . . . . 150°C
Maximum Storage Temperature Range . . . . . . . . . . . -65°C to 150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300°C
(SOIC, SSOP, TSSOP - Lead Tips Only)
*Pb-free PDIPs can be used for through hole wave solder
processing only. They are not intended for use in Reflow solder
processing applications.
θ
JA
(°C/W)
Operating Conditions
Temperature Range
ICL32XXEC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
ICL32XXEI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to 85°C
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
Input Leakage Current T
Output Leakage Current FORCEOFF
Output Voltage Low I
Output Voltage High I
RECEIVER INPUTS
Input Voltage Range Full -25 - 25 V
Input Threshold Low V
Input Threshold High V
Input Hysteresis 25 - 0.5 - V
Input Resistance 25 3 5 7 kΩ
TRANSMITTER OUTPUTS
Output Voltage Swing All Transmitter Outputs Loaded with 3kΩ to Ground Full ±5.0 ±5.4 - V
All R
Open, FORCEON = GND, FORCEOFF = V
IN
All Outputs Unloaded, FORCEON = FORCEOFF
, FORCEON, FORCEOFF Full - - 0.8 V
IN
, FORCEON,
IN
FORCEOFF
, FORCEON, FORCEOFF Full - ±0.01 ±1.0 µA
IN
= 1.6mA Full - - 0.4 V
OUT
= -1.0mA Full V
OUT
= 3.3V 25 0.6 1.2 - V
CC
V
= 5.0V 25 0.8 1.5 - V
CC
= 3.3V 25 - 1.5 2.4 V
CC
V
= 5.0V 25 - 1.8 2.4 V
CC
= 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
VCC = 3.3V Full 2.0 - - V
V
= 5.0V Full 2.4 - - V
CC
= GND, ICL3245E 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
6
FN4900.9
February 27, 2006
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