1µA Supply-Current, +3V to +5.5V, 250kbps, RS-232 Transmitters/Receivers
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Overview
Description
The ICL3221, ICL3222, ICL3223, ICL3232, ICL3241, ICL3243 (ISL32xx) devices are 3. 0V to 5. 5V powered RS-232 transmitters/receivers that meet ElA/TIA-232 and V. 28/V. 24 specifications, even at VCC = 3. 0V. Targeted applications are PDAs, notebook, and laptop computers where the low operational power consumption and even lower standby power consumption are critical. Efficient on-chip charge pumps, coupled with manual and automatic power-down functions (except for the ICL3232), reduce the standby supply current to a 1µA trickle. Small footprint packaging, and the use of small, low value capacitors ensure board space savings as well. Data rates greater than 250kbps are ensured at worst case load conditions. This family is fully compatible with 3. 3V only systems, mixed 3. 3V and 5. 0V systems, and 5. 0V only systems. The ICL324x are 3-driver, 5-receiver devices that provide a complete serial port suitable for laptop or notebook computers. Both devices also include noninverting always-active receivers for “wake-up” capability. The ICL3221, ICL3223 and ICL3243 feature an automatic powerdown function that powers down the on-chip power-supply and driver circuits. Power-down occurs when an attached peripheral device is shut off or the RS-232 cable is removed, conserving system power automatically without changes to the hardware or operating system. These devices power up again when a valid RS-232 voltage is applied to any receiver input.
Features
- RoHS Compliant
- 15kV ESD protected (Human Body Model)
- Drop-in replacements for MAX3221, MAX3222, MAX3223, MAX3232, MAX3241, MAX3243, SP3243
- ICL3221 is a low-power, pin compatible upgrade for 5V MAX221
- ICL3222 is a low-power, pin compatible upgrade for 5V MAX242, and SP312A
- ICL3232 is a low-power upgrade for HIN232/ICL232 and pin compatible competitor devices
- RS-232 compatible with VCC = 2.7V
- Meets EIA/TIA-232 and V.28/V.24 specifications at 3V
- Latch-up free
- On-chip voltage converters require only four external 0.1µF capacitors
- Manual and automatic powerdown features (except ICL3232)
- Assured mouse driveability (ICL324x only)
- Receiver hysteresis for improved noise immunity
- Assured minimum data rate : 250kbps
- Assured minimum slew rate : 6V/ms
- Wide power supply range : single +3V to +5.5V
- Low supply current in powerdown state :1µA
Applications
Applications
- Any System Requiring RS-232 Communication Ports Battery Powered, Hand-Held, and Portable Equipment Laptop Computers, Notebooks, Palmtops Modems, Printers and other Peripherals Digital Cameras Cellular/Mobile Phones
Documentation
| Document title | Document type
|
Date Date | |
|---|---|---|---|
| PDF 875 KB | Datasheet | ||
| PDF 365 KB | Application Note | ||
| PDF 207 KB | Application Note | ||
| PDF 474 KB | Application Note | ||
| PDF 178 KB | Application Note | ||
| PDF 395 KB | Application Note | ||
| PDF 513 KB | Application Note | ||
| PDF 443 KB | Application Note | ||
| PDF 582 KB | Application Note | ||
| PDF 440 KB | Application Note | ||
| PDF 338 KB | Application Note | ||
| PDF 365 KB | Application Note | ||
| PDF 375 KB | Application Note | ||
| PDF 372 KB | Application Note | ||
| PDF 4.91 MB 日本語 | Brochure | ||
| PDF 2.95 MB | Brochure | ||
| PDF 388 KB | End Of Life Notice | ||
| PDF 78 KB | Product Change Notice | ||
| PDF 98 KB | Product Change Notice | ||
| PDF 49 KB | Product Change Notice | ||
| PDF 188 KB | Technical Brief | ||
| PDF 405 KB | Training | ||
| PDF 239 KB | Training | ||
| PDF 920 KB 简体中文 | White Paper | ||
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Design & Development
Software & Tools
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Product Options
Processing table
Pkg. Type |
Carrier Type |
MOQ |
Buy / Sample |
|
|---|---|---|---|---|
| Part Number | ||||
| TSSOP | Tube | 1480 | Get Samples, | |
| TSSOP | Reel | 2500 |
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