Device Information
 
 
ISL4260E Printer Friendly Version
 
QFN Packaged, ±15kV ESD Protected, +3V to +5.5V, 150nA, 250kbps, RS-232 Transmitters/Receivers with Separate Logic Supply
 
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
ISL4260EIRZ Active Ind 32 Ld QFN 3 2.68 PB Free Out of stock Disti-Buy Sample
ISL4260EIRZ-T Active Ind 32 Ld QFN T+R 3 2.68 PB Free Disti-Buy  
ISL4260EIR InActive Ind 32 Ld QFN 1 N/A      
ISL4260EIR-T InActive Ind 32 Ld QFN 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 ISL4260E 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. Targeted applications are PDAs, Palmtops, and cell phones where the low operational, and even lower standby, power consumption is critical. Efficient on-chip charge pumps, coupled with a manual powerdown function reduces the standby supply current to a 150nA trickle. Tiny 5mm x 5mm Quad Flat No- Lead (QFN) 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.

The ISL4260E features a VL pin that adjusts the logic pin (see Pin Descriptions table) output levels and input thresholds to values compatible with the VCC powering the external logic (e.g., a UART).

The single pin powerdown function (SHDN = 0) disables all the receiver and transmitter outputs, while shutting down the charge pump to minimize supply current drain.

 
  Key Features
 
  • Available in Near Chip Scale QFN (5mmx5mm) Package
  • VL Pin for Compatibility with Mixed Voltage Systems
  • ESD Protection for RS-232 I/O Pins to ±15kV (IEC61000)
  • Single SHDN Pin Disables Transmitters and Receivers
  • Meets EIA/TIA-232 and V.28/V.24 Specifications at 3V
  • On-Chip Charge Pumps Require Only Four External 0.1µF Capacitors
  • Receiver Hysteresis For Improved Noise Immunity
  • Very Low Supply Current 300µA
  • Guaranteed Minimum Data Rate 250kbps
  • Wide Power Supply Range Single +3V to +5.5V
  • Low Supply Current in Powerdown State 150nA
  • 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 Tx3
# of Rx2
High ESDYes
Manual ShutdownYes
Auto ShutdownNo
Rx DisableNo
Data Rate (Mbps).5
Cap. Value (µF).1
IS Enabled (mA).3
IS Disabled (µA).15
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
    • Digital Cameras
    • PDAs and PDA Cradles
    • Cellular/Mobile Phones
 
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