intersil ICL3225, ICL3245 DATA SHEET
®
www.BDTIC.com/Intersil
ICL3225, ICL3245
Data Sheet February 27, 2006
1 Microamp, +3V to +5.5V, 1Mbps, RS-232
Transceivers with Enhanced Automatic
Powerdown
The Intersil ICL32XX 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
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 ICL3245 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
ICL32XX 3V family.
= 3.0V. Targeted
CC
FN4878.8
Features
• ±15kV ESD Protected (Human Body Model)
• Manual and Enhanced Automatic Powerdown Features
• Drop in Replacements for MAX3225, MAX3245
• Meets EIA/TIA-232 and V.28/V.24 Specifications at 3V
• Latch-Up Fre e
• On-Chip Voltage Converters Require Only Four External
0.1µF Capacitors
• Guaranteed Mouse Driveability (ICL3245)
• “Ready to Transmit” Indicator Output (ICL3225)
• 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
• Pb-Free Plus Anneal Available (RoHS Compliant)
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
• Techni cal Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
TABLE 1. SUMMARY OF FEATURES
NO. OF
PART
NUMBER
ICL3225 2 2 0 1000 No Yes Yes Yes
ICL3245 3 5 1 1000 No No Yes Yes
NO. OF
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 or 1-888-468-3774
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?
Ordering Information
www.BDTIC.com/Intersil
ICL3225, ICL3245
PART NO.
PART
MARKING
TEMP.
RANGE (°C) PACKAGE PKG. DWG. #
ICL3225CA ICL3225CA 0 to 70 20 Ld SSOP M20.209
ICL3225CA-T ICL3225CA 0 to 70 20 Ld SSOP Tape and Reel M20.209
ICL3225CAZ (Note) ICL3225CAZ 0 to 70 20 Ld SSOP (Pb-free) M20.209
ICL3225CAZ-T (Note) ICL3225CAZ 0 to 70 20 Ld SSOP Tape and Reel (Pb-free) M20.209
ICL3225CP ICL3225CP 0 to 70 20 Ld PDIP E20.3
ICL3225CPZ (Note) ICL3225CPZ 0 to 70 20 Ld PDIP* (Pb-free) E20.3
ICL3225IA ICL3225IA -40 to 85 20 Ld SSOP M20.209
ICL3225IA-T ICL3225IA -40 to 85 20 Ld SSOP Tape and Reel M20.209
ICL3225IAZ (Note) ICL3225IAZ -40 to 85 20 Ld SSOP (Pb-free) M20.209
ICL3225IAZ-T (Note) ICL3225IAZ -40 to 85 20 Ld SSOP Tape and Reel (Pb-free) M20.209
ICL3245CA ICL3245CA 0 to 70 28 Ld SSOP M28.209
ICL3245CA-T ICL3245CA 0 to 70 28 Ld SSOP Tape and Reel M28.209
ICL3245IV ICL3245IV -40 to 85 28 Ld TSSOP M28.173
ICL3245IV-T ICL3245IV -40 to 85 28 Ld TSSOP Tape and Reel M28.173
*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: 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
READY
C1+
V+
C1-
C2+
C2-
T2
OUT
R2
R2
OUT
ICL3225 (PDIP, SSOP)
TOP VIEW
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
ICL3245 (SSOP, TSSOP)
TOP VIEW
C2+
1
C2-
2
3
V-
R1
4
IN
R2
5
IN
R3
6
IN
R4
7
IN
R5
8
IN
T1
9
OUT
10
T2
OUT
T3
11
OUT
T3
12
IN
T2
13
IN
T1
14
IN
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
2
FN4878.8
February 27, 2006
ICL3225, ICL3245
www.BDTIC.com/Intersil
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
T
OUT
R
R
OUT
R
OUTB
INVALID
TTL/CMOS compatible transmitter Inputs.
IN
RS-232 level (nominally ±5.5V) transmitter outputs.
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.
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).
Typical Operating Circuits
TTL/CMOS
LOGIC LEVELS
+3.3V
0.1µF
0.1µF
R1
R2
C
C
T1
T2
OUT
OUT
ICL3225
+
0.1µF
2
+
4
5
+
6
13
12
15
1
14
C1+
C1-
C2+
C2-
READY
FORCEON
1
2
IN
IN
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
3
FN4878.8
February 27, 2006
Typical Operating Circuits (Continued)
www.BDTIC.com/Intersil
ICL3225, ICL3245
ICL3245
+3.3V
TTL/CMOS
LOGIC LEVELS
CONTROL LOGIC
+
0.1µF
TO POWER
0.1µF
0.1µF
R2
R1
R2
R3
R4
R5
V
28
C
1
C
2
T1
T2
T3
OUTB
OUT
OUT
OUT
OUT
OUT
CC
IN
IN
IN
C1+
+
24
C1-
1
C2+
+
2
C2-
14
13
12 11
20
19
23
FORCEON
22
FORCEOFF
21
INVALID
V
R
1
R
2
R
3
R
4
R
5
GND
CC
26
27
C
3
V+
V-
T
1
T
2
T
3
5kΩ
5kΩ
5kΩ
5kΩ
5kΩ
25
+
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
4
FN4878.8
February 27, 2006
ICL3225, ICL3245
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:
1. 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 1)
20 Ld PDIP Package*. . . . . . . . . . . . . . . . . . . . . . . . 80
20 Ld SSOP Package . . . . . . . . . . . . . . . . . . . . . . . 135
28 Ld SSOP Package . . . . . . . . . . . . . . . . . . . . . . . 100
28 Ld TSSOP Package . . . . . . . . . . . . . . . . . . . . . . 125
Maximum Junction Temperature (Plastic Package) . . . . . . . 150°C
Maximum Storage Temperature Range. . . . . . . . . . .-65°C to 150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300°C
(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
ICL32XXC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
ICL32XXI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-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
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
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
Output Resistance V
Output Short-Circuit Current Full - ±35 ±60 mA
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
= 3.3V 25 0.6 1.2 - V
CC
= 5.0V 25 0.8 1.5 - V
V
CC
= 3.3V 25 - 1.5 2.4 V
CC
= 5.0V 25 - 1.8 2.4 V
V
CC
= V+ = V- = 0V, Transmitter Output = ±2V Full 300 10M - Ω
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
ICL3245, VCC = 3.0V 25 - 0.3 1.0 mA
= V
CC
ICL322X, V
= 5.0V Full 2.4 - - V
V
CC
= GND Full - ±0.05 ±10 µA
= 3.15V 25 - 0.3 1.0 mA
CC
25 - 1.0 10 µA
CC
-0.6 V
-0.1 - V
CC
5
FN4878.8
February 27, 2006
ICL3225, ICL3245
www.BDTIC.com/Intersil
Electrical Specifications Test Conditions: V
Typicals are at T
PARAMETER TEST CONDITIONS
Output Leakage Current V
MOUSE DRIVEABILITY
Transmitter Output Voltage
(See Figure 11)
ENHANCED AUTOMATIC POWERDOWN (FORCEON = GND, FORCEOFF
Receiver Input Thresholds to
INVALID
Receiver Input Thresholds to
INVALID
INVALID
Low
INVALID
High
Receiver Positive or Negative
Threshold to INVALID
(t
Receiver Positive or Negative
Threshold to INVALID
(t
Receiver or Transmitter Edge to
Transmitters Enabled Delay (t
Receiver or Transmitter Edge to
Transmitters Disabled Delay
(t
TIMING CHARACTERISTICS
Maximum Data Rate R
Receiver Propagation Delay Receiv e r I n put to Rec e i ver Out pu t ,
Receiver Output Enable Time Normal Operation 25 - 200 - ns
Receiver Output Disable Time Normal Operation 25 - 200 - ns
Transmitter Skew t
Receiver Skew t
Transition Region Slew Rate V
ESD PERFORMANCE
RS-232 Pins (T
All Other Pins Human Body Model 25 - ±2.5 - kV
NOTES:
High
Low
, READY Output Voltage
, READY Output Voltage
High Delay
)
INVH
Low Delay
)
INVL
)
WU
AUTOPWDN
2. An “edge” is defined as a transition through the transmitter or receiver input thresholds.
3. Skews are measured at the receiver input switching points (1.4V).
)
, RIN) Human Body Model 25 - ±15 - kV
OUT
= ±12V, VCC = 0V or 3V to 5.5V
OUT
Automatic Powerdown or FORCEOFF
T1
= T2IN = GND, T3IN = VCC, T3
IN
and T2
T1
OUT
See Figure 6 Full -2.7 - 2.7 V
See Figure 6 Full -0.3 - 0.3 V
I
= 1.6mA Full - - 0.4 V
OUT
I
= -1.0mA Full VCC-0.6 - - V
OUT
Note 2 25 - 100 - µs
Note 2 Full 15 30 60 sec
= 3kΩ, One Transmitter
L
Switching
C
= 150pF
L
- t
PHL
PLH
- t
PHL
PLH
= 3.3V, RL = 3kΩ to 7kΩ, Measured from 3V to -3V or -3V to
CC
= 150pF to 1000pF
3V, C
L
IEC61000-4-2 Contact Discharge 25 - ±8-kV
IEC61000-4-2 Air Gap Discharge 25 - >±8-kV
= 3V to 5.5V, C1 - C4 = 0.1µF; Unless Otherwise Specified.
CC
= 25°C (Continued)
A
TEMP
(°C) MIN TYP MAX UNITS
Full - - ±25 µA
= GND
Loaded with 3kΩ to GND,
Loaded with 2.5mA Each
OUT
(Note 3) 25 - 25 - ns
(Note 3) 25 - 50 - ns
OUT
= VCC)
CL = 1000pF Full 250 - - kbps
= 3V to 4.5V, CL = 250pF Full 1000 - - kbps
V
CC
= 4.5V to 5.5V,
V
CC
= 1000pF
C
L
t
PHL
t
PLH
Full ±5--V
25 - 1 - µs
25 - 30 - µs
Full 1000 - - kbps
25 - 0.15 - µs
25 - 0.15 - µs
25 24 - 150 V/µs
6
FN4878.8
February 27, 2006
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