ISL4270EIRZ集成電路（IC）的驅(qū)動器接收器收發(fā)器規(guī)格書PDF中文資料

QFN Packaged, ±15kV ESD Protected, +3V to +5.5V, 300nA, 250kbps, RS-232 Transceivers with Enhanced Automatic Powerdown and a Separate Logic Supply

The Intersil ISL4270E is a 3.0V to 5.5V powered RS-232 transceiver which meets 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 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 300nA trickle. Tiny 5mmx5mm 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.

Features

? Available in Near Chip Scale QFN (5mmx5mm) Package

? VL Supply Pin for Compatibility with Mixed Voltage Systems

? ESD Protection for RS-232 I/O Pins to ?15kV (IEC61000)

? Manual and Enhanced Automatic Powerdown Features

? Meets EIA/TIA-232 and V.28/V.24 Specifications at 3V

? On-Chip Charge Pumps Require Only Four External 0.1?F Capacitors

? Receivers Stay Active in Powerdown

? Very Low Supply Current . . . . . . . . . . . . . . . . . . . . 300?A

? Guaranteed Minimum Data Rate . . . . . . . . . . . . . 250kbps

? Wide Power Supply Range . . . . . . . Single +3V to +5.5V

? Low Supply Current in Powerdown State. . . . . . . . 300nA

? Pb-Free (RoHS Compliant)

Applications

? Any System Requiring RS-232 Communication Ports

- Battery Powered, Hand-Held, and Portable Equipment

- Laptop Computers, Notebooks, Palmtops

- Digital Cameras

- PDA’s and PDA Cradles

- Cellular/Mobile Phones