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Intersil Electronic Components Datasheet



ICL3245E

(ICL3225E - ICL3245E) RS-232 Transceivers



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ICL3245E pdf
®
Data Sheet
ICL3225E, ICL3227E, ICL3245E
February 27, 2006
FN4900.9
±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 VCC = 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 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
www.DataSheet4U.cocmomputers. 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 power-
supply 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.
Features
• Pb-Free Plus Anneal Available (RoHS Compliant)
(see Ordering Info)
• ESD Protection for RS-232 I/O Pins to ±15kV (IEC61000)
• Manual and Enhanced Automatic Powerdown Features
• Drop in Replacements for MAX3225E, MAX3227E,
MAX3245E
• RS-232 Compatible with VCC = 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
0.1µF 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
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 NO. OF
PART NUMBER Tx.
Rx.
ICL3225E 2 2
ICL3227E 1 1
ICL3245E 3 5
NO. OF
MONITOR Rx.
(ROUTB)
0
0
1
DATA
RATE
(kbps)
1000
1000
1000
Rx. ENABLE
FUNCTION?
No
No
No
READY
OUTPUT?
Yes
Yes
No
MANUAL
POWER-
DOWN?
Yes
Yes
Yes
ENHANCED
AUTOMATIC
POWERDOWN
FUNCTION?
Yes
Yes
Yes
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2000, 2001, 2003-2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.



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ICL3245E pdf
ICL3225E, ICL3227E, ICL3245E
Ordering Information
PART NO. *
PART
MARKING
TEMP.
RANGE
(°C)
PKG.
PACKAGE DWG. #
ICL3225ECA ICL3225ECA 0 to 70 20 Ld SSOP M20.209
ICL3225ECAZ ICL3225ECAZ 0 to 70 20 Ld SSOP M20.209
(Note 1)
(Pb-free)
ICL3225ECP ICL3225ECP 0 to 70 20 Ld PDIP E20.3
ICL3225ECPZ 3225ECPZ
(Note 1)
0 to 70 20 Ld PDIP** E20.3
(Pb-free)
ICL3225EIA ICL3225EIA -40 to 85 20 Ld SSOP M20.209
ICL3225EIAZ ICL3225EIAZ -40 to 85 20 Ld SSOP M20.209
(Note 1)
(Pb-free)
ICL3227ECA ICL3227ECA 0 to 70 16 Ld SSOP M16.209
ICL3227ECAZA 3227ECAZ
(Note 1)
0 to 70 16 Ld SSOP M16.209
(Pb-free)
ICL3227EIA ICL3227EIA -40 to 85 16 Ld SSOP M16.209
ICL3227EIAZA 3227EIAZ
(Note 1)
-40 to 85 16 Ld SSOP M16.209
(Pb-free)
ICL3245ECA ICL3245ECA 0 to 70 28 Ld SSOP M28.209
ICL3245ECAZ ICL3245ECAZ 0 to 70 28 Ld SSOP M28.209
(Note 1)
(Pb-Free)
ICL3245ECB ICL3245ECB 0 to 70 28 Ld SOIC M28.3
Ordering Information (Continued)
PART NO. *
PART
MARKING
TEMP.
RANGE
(°C)
PACKAGE
PKG.
DWG. #
ICL3245ECBZ ICL3245ECBZ 0 to 70 28 Ld SOIC M28.3
(Note 1)
(Pb-free)
ICL3245ECV ICL3245ECV 0 to 70 28 Ld TSSOP M28.173
ICL3245ECVZ ICL3245ECVZ 0 to 70 28 Ld TSSOP M28.173
(Note 1)
(Pb-free)
ICL3245EIA ICL3245EIA -40 to 85 28 Ld SSOP M28.209
ICL3245EIAZ ICL3245EIAZ -40 to 85 28 Ld SSOP M28.209
(Note 1)
(Pb-free)
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.
Pinouts
ICL3225E (PDIP, SSOP)
TOP VIEW
READY 1
C1+ 2
V+ 3
C1- 4
C2+ 5
C2- 6
V- 7
T2OUT 8
R2IN 9
R2OUT 10
20 FORCEOFF
19 VCC
18 GND
17 T1OUT
16 R1IN
15 R1OUT
14 FORCEON
13 T1IN
12 T2IN
11 INVALID
ICL3227E (SSOP)
TOP VIEW
READY 1
C1+ 2
V+ 3
C1- 4
C2+ 5
C2- 6
V- 7
R1IN 8
16 FORCEOFF
15 VCC
14 GND
13 T1OUT
12 FORCEON
11 T1IN
10 INVALID
9 R1OUT
2 FN4900.9
February 27, 2006



Part Number ICL3245E
Description (ICL3225E - ICL3245E) RS-232 Transceivers
Maker Intersil Corporation - Intersil Corporation
Total Page 20 Pages
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