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Part Number: ISL4260E
Description: The ISL4260E contains 3.0V to 5.5V powered RS-232 transmitters/receivers which meet ElA/TIA-232 and V.28/V.24 specifica...
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ISL4260E
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DataSheet
General Description
ISL4260E General 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 thecharge pump to minimize supply current drain.
Table 1 summarizes the features of the ISL4260E, while Application Note AN9863 summarizes the features of each device comprising the 3V RS-232 family.
ISL4260E Maximum Ratings
VCC to Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V
VL to Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 7V
V+ to Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 7V
V- to Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.3V to -7V
V+ to V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14V
Input Voltages
TIN , SHDN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V
RIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±25V
Output Voltages
TOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±13.2V
ROUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to (VL +0.3V)
Short Circuit Duration
TOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . See Specification Table
VL to Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 7V
V+ to Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 7V
V- to Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.3V to -7V
V+ to V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14V
Input Voltages
TIN , SHDN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V
RIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±25V
Output Voltages
TOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±13.2V
ROUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to (VL +0.3V)
Short Circuit Duration
TOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . See Specification Table
ISL4260E 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 0.1F Capacitors
* Receiver Hysteresis For Improved Noise Immunity
* Very Low Supply Current . . . . . . . . . . . . . . . . . . . . 300A
* Guaranteed Minimum Data Rate . . . . . . . . . . . . . 250kbps
* Wide Power Supply Range. . . . . . . . Single +3V to +5.5V
* Low Supply Current in Powerdown State. . . . . . . . .150nA
* Pb-free available
*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 0.1F Capacitors
* Receiver Hysteresis For Improved Noise Immunity
* Very Low Supply Current . . . . . . . . . . . . . . . . . . . . 300A
* Guaranteed Minimum Data Rate . . . . . . . . . . . . . 250kbps
* Wide Power Supply Range. . . . . . . . Single +3V to +5.5V
* Low Supply Current in Powerdown State. . . . . . . . .150nA
* Pb-free available
ISL4260E Typical Application
* 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
- Battery Powered, Hand-Held, and Portable Equipment
- Laptop Computers, Notebooks, Palmtops
- Digital Cameras
- PDAs and PDA Cradles
- Cellular/Mobile Phones
ISL4260E Connection Diagram
ISL4260E
PDF/DataSheet Download
- Datasheet: ISL4260E
- File Size: 283758 KB
- Manufacturer: INTERSIL [Intersil Corporation]
- Click here to Download
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- ·ISL12027
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- ·ISL12027IB27AZ-T
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- ·ISL12027IB27Z
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