Device Information
 
 
ICL3237E Printer Friendly Version
 
±15KV ESD Protected, 1μA Supply-Current, +3V to +5.5V, 250kbps or 1000kbps, RS-232 Transmitters/Receivers
 
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
ICL3237ECAZ Active Comm 28 Ld SSOP 3 2.64 PB Free Buy Direct Disti-Buy Sample
ICL3237ECAZ-T Active Comm 28 Ld SSOP T+R 3 2.64 PB Free Disti-Buy  
ICL3237EIA Active Ind 28 Ld SSOP 1 3.52  Buy Direct Disti-Buy Sample
ICL3237EIAZ Active Ind 28 Ld SSOP 3 2.93 PB Free Buy Direct Disti-Buy Sample
ICL3237EIAZ-T Active Ind 28 Ld SSOP T+R 3 2.93 PB Free Disti-Buy  
ICL3237ECA InActive Comm 28 Ld SSOP 1 N/A      
ICL3237ECA-T InActive Comm 28 Ld SSOP T+R 1 N/A      
ICL3237EIA-T To Be
Discontinued		 Ind 28 Ld SSOP T+R 1 2.93      
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 ICL3237E 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, 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 the manual powerdown function, 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 1Mbps (MBAUD = VCC) are guaranteed at worst case load conditions. The ICL3237E is fully compatible with 3.3V only systems, mixed 3.3V and 5.0V systems, and 5.0V only systems.

The ICL3237E is a 5 driver, 3 receiver device that also includes a noninverting always-active receiver for "wake-up" capability.

 
  Key Features
 
  • ESD Protection For RS-232 I/O Pins to ±15kV (IEC61000)
  • Pin Compatible Replacement for MAX3237E
  • Pin Selectable, Guaranteed Data Rate . . 250kbps/1Mbps
  • Meets EIA/TIA-232 and V.28/V.24 Specifications at 3V
  • RS-232 Compatible with VCC = 2.7V
  • Latch-Up Free
  • On-Chip Voltage Converters Require Only Four External Capacitors
  • Manual Powerdown Feature
  • Flow Through Pinout
  • Rx and Tx Hysteresis For Improved Noise Immunity
  • Rx Active in Powerdown; Separate Rx Enable Pin
  • Guaranteed Minimum Slew Rate 6V/µs or 24V/µs
  • Wide Power Supply Range Single +3V to +5.5V
  • Low Supply Current in Powerdown State 10nA
  • Pb-free available
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 ShutdownNo
Rx DisableYes
Data Rate (Mbps)0.5/1.0
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
    • Laptop Computers, Notebooks, Palmtops
    • Modems, Printers and other Peripherals
    • Data Cradles and Cables
    • Cellular/Mobile Phone
 
  Related DevicesParametric Table   Parametric Table
 
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