Device Information
 
 
ICL3238E Printer Friendly Version
 
±15kV ESD Protected, +3V to +5.5V, 1μA, 250kbps, RS-232 Transceivers With Enhanced Automatic Powerdown
 
Datasheets,
Related Docs
& Simulations		DescriptionKey
Features		Parametric
Data		Application
Diagrams		Related
Devices
 
 
Ordering Information
 iBuy direct from Intersil  iBuy direct - out of stock  Request samples
 Check distributor inventory Green/Pb(Lead free) Device  Available in RoHS/Pb-Free  
Part No. Design-In
Status		 Temp. Package MSL Price
US $		 PB Free
ICL3238ECA Active Comm 28 Ld SSOP 1 2.07  Buy Direct Disti-Buy Sample
ICL3238ECAZ Active Comm 28 Ld SSOP 3 1.72 PB Free Buy Direct Disti-Buy Sample
ICL3238ECAZ-T Active Comm 28 Ld SSOP T+R 3 1.72 PB Free Disti-Buy  
ICL3238EIA Active Ind 28 Ld SSOP 1 2.40  Out of stock Disti-Buy Sample
ICL3238EIA-T Active Ind 28 Ld SSOP T+R 1 2.40   Disti-Buy  
ICL3238EIAZ Active Ind 28 Ld SSOP 3 2.00 PB Free Out of stock Disti-Buy Sample
ICL3238EIAZ-T Active Ind 28 Ld SSOP T+R 3 2.00 PB Free Disti-Buy  
ICL3238EIVZ Active Ind 28 Ld TSSOP 3 1.93 PB Free Buy Direct Disti-Buy Sample
ICL3238EIVZ-T Active Ind 28 Ld TSSOP T+R 3 1.93 PB Free Disti-Buy  
ICL3238ECA-T InActive Comm 28 Ld SSOP T+R 1 N/A      
ICL3238EIV InActive Ind 28 Ld TSSOP 1 N/A      
ICL3238EIV-T InActive Ind 28 Ld TSSOP T+R 1 N/A      
The price listed is the manufacturer's suggested retail price for quantities of 1K units. However, prices in today's market are fluid and may change without notice.
MSL = Moisture Sensitivity Level - per IPC/JEDEC J-STD-020
SMD = Standard Microcircuit Drawing
 
  Description

The Intersil ICL3238E contains 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, it provides ±15kV ESD protection (IEC61000-4-2 Air Gap and Human Body Model) on transmitter outputs and receiver inputs (RS-232 pins). Targeted applications are cell phones, Palmtops, and data cables 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 10nA 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 providing compatibility with popular PC communication software.

The ICL3238E is a 5 driver, 3 receiver device optimized for DCE applications with full hardware handshaking. It also includes a noninverting always-active receiver for RING INDICATOR monitoring.

This device, features 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. The ICL3238E powers back up, automatically, whenever it senses a transition on any transmitter or receiver input.

The transmitter and logic inputs include active feedback resistors that retain the input state once driven to a valid logic level.

 
  Key Features
 
  • Pb-Free Available as an Option (see Ordering Info)
  • ESD Protection for RS-232 I/O Pins to ±15kV (IEC61000)
  • Active Feedback Resistors on TX and Logic Inputs.
  • Manual and Enhanced Automatic Powerdown Features
  • Pin Compatible Replacement for MAX3238E, MAX3238, SP3238E
  • Meets EIA/TIA-232 and V.28/V.24 Specifications at 3V
  • RS-232 Compatible Outputs at 2.7V Supply
  • Flow Through Pinout
  • Latch-Up Free
  • On-Chip Voltage Converters Require Only Four External Capacitors
  • Receiver and Transmitter 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 10nA
Related Documentation
 
Application Note(s)   Application Note(s):
 
Datasheet(s)   Datasheet(s):
 
Technical Homepage   Technical Homepage:
 
Design Model(s)   Design Model(s):
 
 
  Parametric Data
# of Tx5
# of Rx3
High ESDYes
Manual ShutdownYes
Auto ShutdownEnhanced
Rx DisableNo
Data Rate (Mbps).5
Cap. Value (µF).1
IS Enabled (mA).3
IS Disabled (µA).01
VCC Range (V)3 to 5.5
VCC (min) (V)3
VCC (max) (V)5.5
 
  Application Block Diagrams
 
 
 
Applications
 
  • Any System Requiring RS-232 Communication Ports
    • Battery Powered, Hand-Held, and Portable Equipment
    • Data Cradles
    • Modems, Printers and other Peripherals
    • Cellular/Mobile Phones, Data Cables
 
  Related DevicesParametric Table   Parametric Table
 
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