intersil Manuals

The ISL83387E is an Intersil-developed RS-232 transceiver that operates from 3.0V to 5.5V and meets EIA/TIA-232 and V.28/V.24 specifications, even at VCC = 3.0V. It also provides ±15kV ESD protection (IEC61000-4-2 Air Gap and Human Body Model) on transmitter outputs and receiver inputs (RS-232 pins). Target applications are PDAs, Palmtops, and notebook and laptop computers where 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 1µA trickle. TSSOP packaging, and the use of small, low value capacitors also ensure board space savings. Data rates greater than 250kbps are guaranteed at worst case load conditions. The ISL83387E features a VL pin that adjusts the logic pin output levels and input thresholds to values compatible with the VCC powering the external logic (e.g., a UART). This device includes an enhanced automatic powerdown function which powers down the on-chip power-supply and driver circuits. This occurs when all receiver and transmitter inputs detect no signal transitions for a period of 30 seconds. It power back up, automatically, whenever it senses a transition on any transmitter or receiver input. Table 1 summarizes the features of the ISL83387E, while A section provides more details.

The ISL4270E is an RS-232 transceiver from Intersil with a working voltage range of 3.0-5.5V, ESD protection, and high-efficiency switch-mode power supply and low power consumption. It can be used in notebooks, PDAs and Palmtops.

ISL83386E is a 3.0V to 5.5V powered RS-232 transmitter/receiver that meets EIA/TIA-232 and V.28/V.24 specifications, even at VCC = 3.0V. Target applications are PDAs, palmtops, and cell phones where 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 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 guaranteed at worst case load conditions. The ISL83386E 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. Table 1 summarizes the features of the ISL83386E, while Application Note AN9863 summarizes the features of each device comprising the 3V RS-232 family.

The ISL4260E is a QFN packaged ±15kV ESD protected, +3V to +5.5V, 150nA, 250kbps RS-232 transmitter/receiver with separate logic supply. It meets ElA/TIA-232 and V.28/V.24 specifications, even at VCC = 3.0V. It is designed for low power consumption applications such as PDAs, palmtops, and cell phones. The device features efficient on-chip charge pumps and a manual powerdown function to reduce standby supply current to 150nA. The compact 5mm x 5mm QFN packaging and use of small, low value capacitors save board space. It guarantees data rates greater than 250kbps under worst case load conditions. The ISL4260E also includes a VL pin for adjusting logic pin output levels and input thresholds for compatibility with the external logic. The single pin powerdown function (SHDN = 0) disables all receiver and transmitter outputs and shuts down the charge pump to minimize supply current drain.

The ISL4238E/44E/45E are 2.7V 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, they provide ±15kV ESD protection (IEC6100-4-2 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 10nA 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 (ISL4238E/44E)/1Mbps (ISL4245E) are guaranteed at worst case load conditions. The ISL424XE are 3 driver, 5 receiver (DTE) devices that, coupled with the QFN package, provide the industry’s smallest, lowest power complete serial port suitable for PDAs, and laptop or notebook computers. The 5x5 QFN requires 60% less board area than a 28 lead TSSOP, and is nearly 20% thinner. The devices also include a noninverting always-active receiver for “wake-up” capability. The ISL4238E is a 5 driver, 3 receiver device optimized for DCE applications.

Intersil ISL8563E is an ESD protected transmitter/receiver with a working voltage range of +3V to +5.5V. It has low power consumption, efficient charge pumps, and a manual powerdown function.

The ISL83385E is an Intersil-produced 3.0V to 5.5V powered RS-232 transmitter/receiver that meets EIA/TIA-232 and V.28/V.24 specifications, even at VCC = 3.0V. It is mainly used in PDAs, Palmtops and notebook and laptop computers that require low power consumption. The device employs an efficient on-chip charge pump and a manual power-down function to reduce standby supply current to 1µA. The small footprint packaging and the use of small, low-value capacitors also save board space. Under the worst-case load conditions, data rates greater than 250kbps are guaranteed. This device is fully compatible with 3.3V only systems, mixed 3.3V and 5.0V systems, and 5.0V only systems. The single-pin power-down function (SHDN = 0) disables all the transmitters, while shutting down the charge pump to minimize supply current drain. Table 1 summarizes the features of the ISL83385E, while Application Note AN9863 summarizes the features of each device comprising the 3V RS-232 family.

The ISL83384E is a ±15kV ESD protected RS-232 transmitter/receiver, with a power supply voltage range of +3V to +5.5V, a current consumption of 1 microamp, and a data transmission rate of 250Kbps. This product is suitable for low power applications such as PDAs, palmtops, and notebook computers, and it features small size, low power consumption, and good compatibility.

The HIN202E, HIN206E, HIN207E, HIN208E, HIN211E, HIN213E, HIN232E are a family of RS-232 transmitters/receivers interface circuits that meet ElA high-speed RS-232E and V.28 specifications, particularly suited for applications where ±12V is not available. They provide ±15kV ESD protection, require a single +5V power supply, and feature onboard charge pump voltage converters. The family offers a variety of high-speed RS-232 transmitter/receiver combinations for different applications.

Intersil ICL32XX 1 Microamp, +3V to +5.5V, 1Mbps, RS-232 Transceivers with Enhanced Automatic Powerdown

The HIN232-HIN241 family of RS-232 transmitters/receivers interface circuits meet all ElA RS-232E and V.28 specifications, and are particularly suited for those applications where ±12V is not available. They require a single +5V power supply (except HIN239) and feature onboard charge pump voltage converters which generate +10V and -10V supplies from the 5V supply. The family of devices offer a wide variety of RS-232 transmitter/receiver combinations to accommodate various applications (see Selection Table). The drivers feature true TTL/CMOS input compatibility, slew-rate-limited output, and 300Ω power-off source impedance. The receivers can handle up to ±30V, and have a 3kΩ to 7kΩ input impedance. The receivers also feature hysteresis to greatly improve noise rejection.

HIN202, HIN206, HIN207, HIN208, HIN211, HIN213 +5V Powered RS-232 Transmitters/Receivers with 0.1Microfarad External Capacitors

The ISL83220E is a 3.0V to 5.5V powered RS-232 transmitter/receiver that 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).

The ISL3232E and ISL4221E, ISL4223E are 2.7V to 5.5V powered RS-232 transmitters/receivers that meet EIA/TIA-232 and V.28/V.24 specifications, even at VCC = 3.0V. They also provide ±15kV ESD protection (IEC61000-4-2 Air Gap and Human Body Model) on transmitter outputs and receiver inputs (RS-232 pins). These devices are suitable for PDAs, Palmtops, and hand-held products where low operational and standby power consumption is critical. The on-chip charge pumps, along with manual and automatic power-down functions, reduce the standby supply current to a trickle of 150nA. The small 5mmx5mm Quad Flat No-Lead (QFN) package and the use of small, low-value capacitors ensure board space savings. Data rates greater than 250kbps are guaranteed under worst-case load conditions. The ISL4221E is a 1 driver, 1 receiver device, while the ISL3232E and ISL4223E are 2 driver, 2 receiver devices, making them suitable for PDAs and hand-held applications. The 5mmx5mm QFN package requires 40% less board area than a 20 Ld TSSOP and is nearly 20% thinner. The ISL4221E and ISL4223E versions feature an automatic power-down function that powers down the on-chip power supply and driver circuits.