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ICL3227E Datasheet(PDF) 1 Page - Intersil Corporation

Part No. ICL3227E
Description  -15kV ESD Protected, 3V to 5.5V, 1Microamp, 1Mbps, RS-232 Transceivers with Enhanced Automatic Powerdown
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Maker  INTERSIL [Intersil Corporation]
Homepage  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ICL3227E Datasheet(HTML) 1 Page - Intersil Corporation

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1
®
FN4900.5
ICL3225E, ICL3227E, ICL3245E
±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 1
µA 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 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 Available as an Option (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
0.1
µF 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. . . . . . . . . . .1
µA
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
PART
NUMBER
NO. OF
Tx.
NO. OF
Rx.
NO. OF
MONITOR Rx.
(ROUTB)
DATA
RATE
(kbps)
Rx. ENABLE
FUNCTION?
READY
OUTPUT?
MANUAL
POWER-
DOWN?
ENHANCED
AUTOMATIC
POWERDOWN
FUNCTION?
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
Data Sheet
June 2004
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 registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2000, 2001, 2003, 2004. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.


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