Mga Interface IC
Subkategorya
Mga Produkto (3,100+)
SP3222ECT-L/TR - 3V-5.5V RS-232 2-Driver/2-Receiver Transceiver | MaxLinear
The MaxLinear SP3222ECT-L/TR is a 2-driver / 2-receiver RS-232 transceiver IC operating from a single 3V to 5.5V supply, housed in an 18-pin SOIC (7.50 mm width) package and shipped on Tape & Reel. The part meets true EIA/TIA-232-F standards, supports a minimum 120 kbps data rate under full load, and offers a 1 µA low-power shutdown mode with receivers remaining active for external device monitoring. According to the MaxLinear SP3222E/SP3232E datasheet, the integrated high-efficiency charge-pump requires only 0.1 µF capacitors in 3.3V operation. An RS-232 transceiver is a type of serial communication interface IC that converts logic-level UART signals (typically 0V/3.3V or 0V/5V CMOS/TTL) to the higher bipolar ±5V to ±15V signaling levels required by the legacy EIA/TIA-232 standard. Within the broader hierarchy, RS-232 transceivers belong to the line driver/receiver family, which itself sits under interface ICs in the power management and connectivity ecosystem. They are essential for bridging modern microcontrollers with industrial PCs, point-of-sale terminals, legacy peripherals, and serial debug ports. Key features include true EIA/TIA-232-F compliance from a 3.0V to 5.5V rail, an enhanced ESD protection rating on the RS-232 pins, 1 µA shutdown current with receiver wake-up, and integrated charge-pump DC-DC converters that eliminate the need for a separate ±12V supply. The 18-SOIC wide-body package supports standard 300-mil PCB footprints and provides robust thermal performance for industrial environments. Operating temperature range is 0°C to +70°C for the commercial-grade 'ECT' suffix variant. The architecture pairs an on-chip charge pump with a proprietary low-dropout transmitter topology and a logic-side receiver with hysteresis, ensuring noise-immune reception in electrically noisy industrial cabinets. The high-efficiency charge pump uses only four small 0.1 µF capacitors and produces ±5.5V rails from a 3.3V input, allowing true RS-232 swing without external DC-DC converters. Typical applications include notebook and palmtop computers, industrial control PLC serial ports, point-of-sale (POS) terminals, battery-powered handheld instruments, and any design that needs true RS-232 levels from a single low-voltage logic supply. When designing with this part, keep in mind that the shutdown pin (/SHDN) must be driven high for normal operation and pulled low only when battery life is critical. Decoupling the charge-pump capacitors with short, low-ESR traces directly at pins C1+, C1-, C2+, and V- minimizes output ripple. This page synthesizes distributor pricing, drop-in alternative MPNs, and practical design notes not found in the standalone manufacturer datasheet, giving purchasing and engineering teams a single source for cross-functional decision-making.
SP3223EUCY-L - +3.0V to +5.5V RS-232 Transceiver | MaxLinear
The MaxLinear SP3223EUCY-L is an intelligent +3.0V to +5.5V RS-232 transceiver housed in a 20-pin TSSOP package, providing two drivers and two receivers (2/2) for full-duplex RS-232 communication. Key specifications include a guaranteed data rate of 1000 kbps, supply current of 0.3 mA typical, and an integrated high-efficiency charge-pump that requires only 0.1 µF capacitors for 3.3V operation. The device is designed for portable applications such as notebook computers and handheld terminals where board space and power efficiency are critical. What is an RS-232 transceiver? An RS-232 transceiver is an interface IC that converts logic-level UART signals (typically 0V/3.3V or 0V/5V CMOS/TTL) into the bipolar ±5V to ±15V voltage swings defined by the EIA/TIA-232-F standard, which legacy PCs, industrial controllers, point-of-sale terminals, and instrumentation equipment use for serial communication. Within the broader component taxonomy, RS-232 transceivers sit under Interface ICs, alongside RS-485 transceivers, CAN transceivers, and USB-to-UART bridges. The SP3223EUCY-L delivers compliant RS-232 performance from a single 3.0V to 5.5V supply, interoperates with EIA/TIA-232 down to a 2.7V source, and adheres to EIA/TIA-562 at reduced drive levels. Its AUTO ON-LINE® circuitry automatically wakes the device from shutdown when a valid RS-232 signal is detected on the receiver input, eliminating the need for external activity-detect logic. An enhanced ESD rating of ±15 kV Human Body Model on the driver outputs and receiver inputs provides robust protection against cable-discharge transients in real-world environments. Typical applications include notebook and handheld computer serial ports, industrial PDA cradles, point-of-sale (POS) terminals, battery-powered diagnostic equipment, and any portable embedded system that needs a true RS-232 link without the bulk of a ±12V supply. The 0.1 µF charge-pump capacitors and 20-pin TSSOP footprint allow a complete 2-driver/2-receiver RS-232 port to fit in roughly 30 mm² of board area. The 0°C to +70°C commercial operating range suits indoor enclosures and consumer-grade handhelds; for industrial temperature designs, an 'I' suffix variant (SP3223EUCY-L is the commercial-grade part) is available from the same family. When designing with this part, remember that the 1000 kbps data rate requires the AUTO ON-LINE® wake-up path to settle; if the system depends on sub-millisecond link bring-up after power-down, gate the FORCEON pin externally. Place the four 0.1 µF charge-pump capacitors (C1–C4) within 3 mm of the IC pins to keep switching noise off the analog ground plane. The "-L" suffix indicates the lead-free / RoHS-compliant finish; pair this with a nickel-palladium-gold (NiPdAu) or matte-tin PCB surface finish to prevent solderability issues during reflow. This page synthesizes MaxLinear distributor pricing, drop-in same-package alternatives, and practical charge-pump PCB layout guidance that the bare datasheet does not present in a single place.
SP3232EA-L - 16-SSOP 120kbps RS-232 Transceiver | Sipex
The Sipex SP3232EA-L is a true RS-232 transceiver IC designed for portable and handheld equipment, with one transmitter and one receiver integrated in a 16-SSOP package. According to the retrieved manufacturer-family documentation, it supports a +3.0 V to +5.5 V supply, true EIA/TIA-232-F operation, and a minimum data rate of 120 kbps under full load. The device also includes low-power shutdown with receivers active, making it useful for battery-operated systems where the transmitter can be disabled while incoming data remains monitored. An RS-232 transceiver is an interface IC that combines a differential line driver and receiver with the voltage-level conversion required by the RS-232 standard. In the broader electronics hierarchy, it belongs to communication interfaces, then interface ICs, and finally semiconductor signal-conditioning devices. The SP3232EA series was designed for notebook, palmtop, and other portable applications where a compact interface must translate low-voltage logic signals to and from RS-232 levels. Key documented features include a +3.0 V to +5.5 V operating supply range, operation down to +2.7 V power-source conditions according to the retrieved technical listing, minimum 120 kbps data rate under full load, and enhanced ESD specifications of ±15 kV. The SP3232E family uses a high-efficiency charge-pump power supply with 0.1 µF capacitors in 3.3 V operation, helping the interface generate the bipolar RS-232 voltage levels required by the standard while reducing external capacitor count. The retrieved datasheet material identifies the SP3222E/SP3232E family as an RS-232 transceiver solution for portable or hand-held equipment. The SP3232EA-L designation identifies the specific -L ordering variant, while the underlying family documentation supplies the electrical operating information. Exact pin names, package dimensions, receiver propagation delay, transmitter output levels, and absolute maximum ratings should be confirmed against the applicable Sipex or MaxLinear datasheet before layout release. Typical applications include RS-232 links in portable computers, serial adapters, embedded serial consoles, battery-powered instruments, and industrial equipment requiring a low-voltage logic interface to a legacy RS-232 port. In a portable design, the receiver can remain active during shutdown if the system must detect a remote signal while reducing transmitter power. In a cable-connected instrument, the charge pump and external capacitors should be placed close to the device to minimize switching noise and maintain signal integrity. The main design consideration is confirming that the selected SSOP footprint, pinout, supply voltage, and logic levels match the PCB before substitution. For a production release, verify ESD protection requirements, cable protection, grounding, and the exact electrical limits from the official manufacturer datasheet rather than relying only on distributor summaries. This page combines retrieved manufacturer-family information, distributor links, and engineering guidance while clearly identifying data that still requires datasheet confirmation.
SP3232EBCN-L/TR - 250 kbps True RS-232 Transceiver, 2/2, 16-SOIC | MaxLinear
The MaxLinear SP3232EBCN-L/TR is a true RS-232 transceiver integrating two drivers and two receivers in a 16-pin narrow SOIC package, operating from a single 3.0 V to 5.5 V supply at data rates up to 250 kbps with 15 kV ESD protection on the RS-232 pins. An RS-232 transceiver is the physical-layer bridge between a logic-level UART and a differential, bipolar RS-232 port. RS-232 is a point-to-point, single-ended-plus-ground signalling standard defined in EIA/TIA-232-F; the transceiver's job is to convert TTL/CMOS logic levels into RS-232 levels on transmit and back again on receive. In the signal-chain hierarchy, an RS-232 transceiver sits below the UART controller and above the connector, inside the broader class of interface ICs and line-driver/receiver devices. Key features include a high-efficiency on-chip charge-pump supply that needs only 0.1 uF capacitors, true EIA/TIA-232-F compliance down to 3.0 V, 250 kbps transmission rate under load, 15 kV ESD protection on all bus pins, and a low-power shutdown mode drawing about 1 uA with the receivers still active. A single charge-pump and dual-pump topology eliminates the need for an external -12 V supply. The SP3232EB series is built for portable and hand-held equipment, where a single 3.3 V or 5 V rail must drive a legacy RS-232 port. The device also suits industrial data acquisition, instrumentation, point-of-sale terminals and USB-to-RS-232 bridging designs. Its 16-pin narrow SOIC body and standard pinout allow direct placement on existing RS-232 interface boards. A typical implementation places the transceiver between a microcontroller UART and a DB9 or RJ45-style RS-232 connector, with 0.1 uF charge-pump capacitors close to the V+ and V- pins and 100 nF decoupling on the supply. Pay attention to RS-232 ground referencing in long cable runs: the receiver tolerates a common-mode range, but ground loops in industrial cabinets remain the dominant source of data errors. This page consolidates parametric detail, drop-in alternatives in the same SOIC-16 footprint, and practical layout guidance that a datasheet alone does not present side by side.
SP3232EBCY-L/TR - 250kbps RS-232 Transceiver | MaxLinear
MaxLinear SP3232EBCY-L/TR is a 2/2 full RS-232 transceiver rated for 250 kbps, 3 V to 5.5 V operation, and 0°C to +70°C commercial temperature range in a 16-pin TSSOP package. The integrated interface includes one driver and one receiver, providing bidirectional point-to-point RS-232 communication from a single low-voltage supply. An RS-232 transceiver is an interface IC that converts between logic-level signals and RS-232 differential voltage levels. It belongs to the serial-interface hierarchy, combining a line driver, line receiver, and charge-pump voltage converter. The SP3232EB family targets portable and handheld equipment where true RS-232 performance is required from a compact 3.3 V or 5 V supply rather than a conventional ±12 V source. The SP3232EBCY-L/TR supports data rates up to 250 kbps and a 3 V to 5.5 V supply range. Its high-efficiency charge-pump supply requires only 0.1 µF capacitors during 3.3 V operation, reducing external capacitor count compared with conventional RS-232 implementations. The manufacturer cross-reference identifies the SP3232EB family as providing 15 kV ESD protection. Two interface directions are available through the transceiver arrangement. The driver converts TTL or CMOS logic levels into RS-232 levels, while the receiver converts incoming RS-232 signals back into logic-compatible levels. This makes the device suitable for data links between portable computers, embedded controllers, industrial equipment, and other systems using the RS-232 standard. Typical applications include portable serial adapters, point-of-sale terminals, diagnostic interfaces, industrial control equipment, and embedded serial links. The 16-TSSOP package supports compact surface-mount construction, while the single-supply architecture simplifies system power design. The 250 kbps rating provides useful margin for common asynchronous serial links operating well below the device’s maximum signaling rate. When laying out the circuit, use the charge-pump capacitor values specified by the manufacturer and place them close to their associated pins. Keep the RS-232 driver and receiver traces away from sensitive analog or high-speed digital paths, and provide the connector interface with appropriate surge and ESD protection. This page combines the SP3232EB family electrical characteristics, package information, manufacturer cross-reference data, and practical guidance for selecting a pin-compatible RS-232 replacement or planning a compact single-supply serial interface.
SP3232EBEN-L/TR - 250kbps RS-232 Transceiver | MaxLinear
The MaxLinear SP3232EBEN-L/TR is a two-channel, two-transceiver full RS-232 interface IC operating from a single 3.0V to 5.5V supply at rates up to 250kbps. The device is packaged in a 16-pin SOIC for surface-mount assembly and is specified over a -40°C to +85°C temperature range. An RS-232 transceiver is an interface IC that converts logic-level digital signals into RS-232 levels and converts received RS-232 levels back into digital logic signals. The SP3232EB family combines receiver and transmitter functions with an integrated charge-pump supply, making it suitable for portable and hand-held equipment that requires true RS-232 performance from a low-voltage system supply. The SP3232EBEN-L/TR supports two transmit and two receive channels. Its single-supply operating range of 3.0V to 5.5V permits use in both 3.3V and 5V systems. The manufacturer states that its high-efficiency charge-pump power supply requires only 0.1µF capacitors during 3.3V operation, reducing the external support-component count for compact serial-interface designs. The family is specified for operation at up to 250kbps and has a quiescent supply current of 0.3mA. The low-power architecture is useful for battery-powered equipment, portable test instruments, and embedded systems where an RS-232 connection is required but continuous current consumption must remain controlled. The 16-SOIC package supports standard surface-mount production and PCB rework procedures. Typical applications include serial service ports on portable computers, industrial diagnostic equipment, point-of-sale systems, data-acquisition instruments, and embedded controllers that communicate with RS-232 peripherals. The two-channel configuration allows one port to connect to a host adapter while another handles a local serial accessory or test fixture. Designers should preserve the required charge-pump capacitor connections and place the associated capacitors close to the device. Input and output signal paths should be routed away from switching nodes and noisy digital return currents to reduce the possibility of communications errors in electrically noisy industrial equipment. This product page combines the manufacturer family specifications with package details, practical application guidance, and a focused drop-in replacement comparison. It is intended to help engineers select an RS-232 interface, plan a PCB layout, and evaluate compatible replacements without reducing the component to a generic transceiver description.
SP3232EBER-L/TR - 250kbps RS-232 Transceiver | MaxLinear
The MaxLinear, Inc. SP3232EBER-L/TR is a 2/2 (two driver, two receiver) full-duplex RS-232 transceiver IC designed for portable and hand-held serial interfaces, operating from a single 3V to 5V supply and packaged in a 16-QFN (5x5 mm) surface-mount package supplied on tape and reel. It is specified for data rates up to 250 kbaud and features on-chip ESD protection rated to 15 kV. An RS-232 transceiver is a level-shifting interface IC that converts between logic-level CMOS/TTL signals and the bipolar +/- voltage swings defined by the RS-232 (EIA-232) standard. The SP3232EB/SP3222EB family belongs to the interface IC hierarchy: transceiver -> RS-232 interface -> serial transceiver -> integrated circuit. Because RS-232 uses inverting logic and elevated voltages, a transceiver is required between a host UART and a cable-attached peripheral, and the chip also supplies the biasing voltages the standard demands. Key features of this device include an integrated high-efficiency charge-pump power supply that needs only 0.1 uF capacitors when operated from 3.3V, true RS-232 levels from a single low-voltage supply, low-power operation suited to battery-powered equipment, integrated charge-pump capacitors in most qualified variants, and 15 kV ESD protection on the driver and receiver pins. The receiver hysteresis of 300 mV gives noise immunity against slow-moving bus edges in industrial cables. Technically the part replaces the older MAX232-style architecture by combining the charge-pump inverter, the dual driver bank and the dual receiver bank into one 16-QFN device. Because the on-chip charge pump operates continuously, the internal supply rails move only slightly with input voltage, so the transceiver behaves as a true single-supply RS-232 solution from 3V to 5V. The exposed pad under the QFN provides a low-impedance thermal and ground path, which matters when the package is used in compact handheld enclosures. Typical applications include point-of-sale terminals, barcode scanners, handheld test and measurement instruments, industrial serial cables, USB-to-serial adapters, medical and diagnostic equipment, and notebook or palmtop computer serial ports. The 250 kbaud data rate comfortably covers legacy RS-232 peripherals, while the 5x5 mm footprint suits space-constrained handheld and portable designs. When designing with the SP3232EBER-L/TR, place the charge-pump capacitors and the RS-232 line-side protection network close to the pins, route the driver outputs and receiver inputs as a matched, tightly coupled pair, and keep the analog ground return continuous under the device. Pay attention to the exposed-pad solder and thermal requirements, and confirm the cable-side ESD margin when connecting to externally accessible ports.
SP3232EBEY-L/TR - Dual RS-232 Transceiver | MaxLinear
MaxLinear SP3232EBEY-L/TR is a +3.0 V to +5.5 V RS-232 transceiver containing two drivers and two receivers in a 16-pin TSSOP package. It supports true RS-232 communication from a single supply and uses a high-efficiency charge-pump power supply that requires only 0.1 µF capacitors when operating at 3.3 V. The integrated charge pump produces the bipolar voltage swings required by RS-232 without a separate negative supply. An RS-232 transceiver is an interface IC that converts logic-level signals into RS-232 line levels and receives RS-232 signals for conversion into logic-level inputs. In the product hierarchy, the SP3232EBEY-L/TR belongs to the RS-232 transceiver family, interface IC category, and broader semiconductor and communication-interface ecosystem. It is intended for portable and handheld equipment, including notebook computers and other systems that need bidirectional asynchronous serial communication. The device combines two transmit channels and two receive channels in one package. Its +3.0 V to +5.5 V supply range accommodates both 3.3 V and 5 V system rails. The 0.1 µF charge-pump capacitor requirement in 3.3 V operation supports compact board layouts, while integrated level translation reduces the number of external interface components required for a basic RS-232 port. The charge-pump topology generates positive and negative signal levels from a single positive supply. This is important because RS-232 uses voltage levels relative to ground to distinguish mark, space, and invalid states. The SP3232EBEY-L/TR also provides integrated driver and receiver functions, allowing two ports or two directions of communication to be implemented with one interface IC. Typical applications include portable computers, handheld test equipment, industrial control links, USB-to-RS-232 adapters, embedded serial consoles, and service interfaces. For embedded systems, the transceiver can connect a host UART to an external RS-232 connector. The host controller supplies logic-level transmit and receive signals, while the transceiver handles the physical voltage conversion and signal buffering. When designing the circuit, follow the charge-pump capacitor connection and placement requirements in the manufacturer datasheet. Keep the interface connector and transceiver placement practical for the intended cable length, provide the required bypass and charge-pump capacitance, and account for the electrical characteristics of the connected RS-232 port. A software-controlled power-down feature may also require careful interface-state handling. This product page combines package details, verified interface specifications, cross-reference findings, and practical implementation guidance. It also identifies the differences that matter when comparing the SP3232EBEY-L/TR with same-family and cross-brand RS-232 transceivers, helping engineers narrow the choice before updating a PCB or constructing a new serial interface.
SP3232ECA-L - 120kbps RS-232 Transceiver | MaxLinear
The MaxLinear SP3232ECA-L is a 120 kbps full-duplex RS-232 transceiver with two drivers and two receivers, a 3.0 V to 5.5 V single-supply operating range, and a 16-pin SSOP package. The device includes a high-efficiency charge-pump power supply that requires only 0.1 µF capacitors in 3.3 V operation. An RS-232 transceiver is an interface IC that converts between single-ended logic-level signals and differential bipolar RS-232 signals. Within the interface hierarchy, it belongs to the communications-interface class, connecting UART controllers, modems, test equipment, and industrial controllers to legacy or long-distance serial links. True RS-232 levels provide noise immunity and common-mode rejection that ordinary CMOS logic cannot supply directly. The SP3232ECA-L supports true RS-232 operation from a single 3.0 V to 5.5 V supply, eliminating the negative supply normally required by older RS-232 implementations. Its 120 kbps minimum data rate under full load suits conventional UART traffic, while the integrated charge pump generates the required positive and negative voltage levels. Low-power shutdown is another documented feature of the related SP3232E series. The SP3232E series uses an efficient charge-pump architecture rather than a switched-inductor supply. The manufacturer states that only 0.1 µF capacitors are required for 3.3 V operation. This topology reduces external magnetic-component requirements and avoids the inductor and associated EMI behavior common to conventional switching converters. The result is a compact interface solution intended for portable and handheld equipment. Typical applications include notebook and palmtop computer serial ports, portable instrumentation, industrial control links, service equipment, and embedded systems that still use RS-232. Two transmitters and two receivers allow full-duplex communication when all four channel pins are used. The 16-pin SSOP package supports compact surface-mount layouts while remaining electrically compatible with the wider SP3232E transceiver family. When designing around the SP3232ECA-L, verify that the UART signal levels and connector-side RS-232 levels are not tied together incorrectly, because the transceiver performs the voltage-domain conversion. Place charge-pump capacitors close to their designated pins, keep the serial route away from sensitive analog nodes, and confirm that the selected connector and ground strategy meet the requirements of the communication standard. This page consolidates verified distributor specifications, family-level comparison data, lifecycle-independent engineering guidance, and practical interface design notes. It distinguishes confirmed SP3232ECA-L characteristics from parameters requiring confirmation in the manufacturer datasheet and separates documented alternatives from unverified cross-package substitutes.
SP3232ECA-L/TR - 120kbps RS-232 Transceiver | MaxLinear (Tape & Reel)
The MaxLinear SP3232ECA-L/TR is a 120 kbps full-duplex RS-232 transceiver with two drivers and two receivers, a 3.0 V to 5.5 V single-supply operating range, and a 16-pin SSOP package. The device includes a high-efficiency charge-pump power supply that requires only 0.1 µF capacitors in 3.3 V operation. An RS-232 transceiver is an interface IC that converts between single-ended logic-level signals and differential bipolar RS-232 signals. Within the interface hierarchy, it belongs to the communications-interface class, connecting UART controllers, modems, test equipment, and industrial controllers to legacy or long-distance serial links. True RS-232 levels provide noise immunity and common-mode rejection that ordinary CMOS logic cannot supply directly. The SP3232ECA-L/TR supports true RS-232 operation from a single 3.0 V to 5.5 V supply, eliminating the negative supply normally required by older RS-232 implementations. Its 120 kbps minimum data rate under full load suits conventional UART traffic, while the integrated charge pump generates the required positive and negative voltage levels. Low-power shutdown is another documented feature of the related SP3232E series. The SP3232E series uses an efficient charge-pump architecture rather than a switched-inductor supply. The manufacturer states that only 0.1 µF capacitors are required for 3.3 V operation. This topology reduces external magnetic-component requirements and avoids the inductor and associated EMI behavior common to conventional switching converters. The result is a compact interface solution intended for portable and handheld equipment. Typical applications include notebook and palmtop computer serial ports, portable instrumentation, industrial control links, service equipment, and embedded systems that still use RS-232. Two transmitters and two receivers allow full-duplex communication when all four channel pins are used. The 16-pin SSOP package supports compact surface-mount layouts while remaining electrically compatible with the wider SP3232E transceiver family. When designing around the SP3232ECA-L/TR, verify that the UART signal levels and connector-side RS-232 levels are not tied together incorrectly, because the transceiver performs the voltage-domain conversion. Place charge-pump capacitors close to their designated pins, keep the serial route away from sensitive analog nodes, and confirm that the selected connector and ground strategy meet the requirements of the communication standard. This page consolidates verified distributor specifications, family-level comparison data, lifecycle-independent engineering guidance, and practical interface design notes. It distinguishes confirmed SP3232ECA-L/TR characteristics from parameters requiring confirmation in the manufacturer datasheet and separates documented alternatives from unverified cross-package substitutes.
SP3232ECN-L - 120 kbps RS-232 Transceiver | MaxLinear
The MaxLinear SP3232ECN-L is a 2-driver, 2-receiver RS-232 transceiver rated for data rates up to 120 kbps and operating from a single 3 V to 5.5 V supply. The device is packaged in a 16-pin narrow SOIC and is intended for portable and handheld equipment that requires true RS-232 electrical levels from a low-voltage logic supply. An RS-232 transceiver is an interface integrated circuit that combines line drivers, line receivers, and the charge-pump circuitry needed to generate the bipolar voltage swings required by the EIA/TIA-232 standard. Within the interface hierarchy, the SP3232ECN-L belongs to the RS-232 transceiver family, which sits below interface transceivers and above individual drivers and receivers. The SP3232ECN-L uses a high-efficiency charge-pump supply that requires only 0.1 uF capacitors during 3.3 V operation. This allows the transceiver to operate from 3 V to 5.5 V while maintaining true RS-232 performance. Its 2/2 channel arrangement provides two transmit paths and two receive paths in one package, reducing board area compared with separate driver and receiver ICs. The E-qualified version also provides enhanced electrostatic-discharge protection of up to plus or minus 15 kV under both the IEC 61000-4-2 system and the Human Body Model. The operating temperature range shown by distributor data is 0 C to 70 C. This combination of low supply voltage, integrated charge pump, and reinforced ESD protection makes the part useful in equipment exposed to electrically noisy or physically connected environments. Typical applications include notebook and palmtop computer serial ports, industrial control panels, point-of-sale terminals, data-acquisition equipment, and service interfaces for embedded systems. The 120 kbps signaling rate is appropriate for legacy RS-232 links carrying configuration commands, diagnostic data, and control traffic rather than continuous high-speed bulk transfers. When designing the circuit, verify the charge-pump capacitor values, driver and receiver connection details, and interface protection requirements against the manufacturer data sheet. Keep RS-232 driver outputs away from sensitive analog inputs, provide controlled return paths, and consider adding external surge protection when a cable can leave the enclosure. This page consolidates manufacturer and distributor information, package details, commercial availability, drop-in replacement options, application guidance, and practical design notes into one engineering reference for evaluating the SP3232ECN-L in new and existing serial-interface designs.
SP3232ECP-L - Dual RS-232 Transceiver | MaxLinear, Inc.
MaxLinear, Inc. SP3232ECP-L is a +3.0 V to +5.5 V RS-232 transceiver containing two drivers and two receivers in a 16-pin DIP package. It supports data rates up to 120 kbps and uses an integrated charge-pump power supply that requires only 0.1 uF capacitors for 3.3 V operation. The device also provides a low-power shutdown mode with a 1 uA supply current while the receivers remain active. An RS-232 transceiver is an interface IC that converts logic-level signals between a host or controller and a serial port using differential, bipolar voltage levels. The SP3232ECP-L belongs to the RS-232 interface transceiver hierarchy, combining transmitter, receiver, voltage conversion, and power-management functions in one package. This integration is useful in portable equipment, industrial controllers, and embedded systems that need a compact, single-supply RS-232 connection. Key features include a 3 V to 5.5 V operating supply range, two transmit channels, two receive channels, and a maximum data rate of 120 kbps. The efficient charge-pump architecture generates the required bipolar RS-232 levels without an external switched power-supply circuit. A 0.1 uF charge-pump capacitor value in 3.3 V operation reduces external component count, while the 16-pin DIP package supports conventional through-hole assembly. The SP3232E family architecture uses on-chip charge pumps to develop positive and negative voltage rails required for compliant RS-232 signaling. The charge-pump capacitors must be connected close to their associated pins to minimize switching noise and maintain stable operation. The shutdown function can reduce supply current to 1 uA when the receivers are active, making the device suitable for systems that need low standby consumption without continuously disabling inbound serial communication. Typical applications include RS-232 ports on portable computers, point-of-sale terminals, industrial control equipment, test systems, and embedded serial adapters. The device is particularly appropriate where a 3.3 V system needs true RS-232 levels rather than logic-level TTL signaling. It can also simplify existing designs that use a higher-voltage supply, provided the host voltage, cable length, grounding, and signal-rate requirements remain compatible. Designers should follow the manufacturer datasheet for the exact pin assignments, charge-pump capacitor configuration, receiver enable behavior, and recommended decoupling. Place the charge-pump capacitors and receiver-input protection network according to the specified layout, use a suitable bypass capacitor at the supply pin, and confirm that the connected cable and logic levels match the system's electrical requirements. This page consolidates the verified electrical characteristics, package information, application guidance, and design considerations for engineers evaluating the SP3232ECP-L. It also distinguishes confirmed drop-in alternatives from unavailable or functionally different options so that replacement decisions are based on package and pin compatibility rather than name similarity alone.
SP3232ECT-L - 120kbps RS-232 Transceiver | MaxLinear
The MaxLinear SP3232ECT-L is a true RS-232 transceiver with two drivers and two receivers, a minimum data rate of 120 kbps, a 3 V to 5.5 V supply range, and a 16-pin WSOIC package. It is designed for portable and handheld equipment that requires bidirectional RS-232 communication from a single low-voltage supply. An RS-232 transceiver is an interface IC that converts logic-level signals between a host or controller and RS-232 lines. The transceiver hierarchy includes interface IC, communications interface, and signal-conditioning semiconductor. Unlike TTL or CMOS serial signals, RS-232 uses voltage levels and signaling rules suited to longer-distance, point-to-point links. The SP3232ECT-L integrates the line driver and receiver functions needed to bridge that physical interface. A principal feature is the integrated high-efficiency charge-pump power supply. According to the manufacturer datasheet, the charge pump permits true RS-232 operation from a single 3 V to 5.5 V supply and requires only 0.1 µF capacitors in 3.3 V operation. This topology raises the supply to the voltage levels required by the RS-232 drivers without requiring a separate negative supply rail. The device supports a minimum 120 kbps data rate and provides two transmit channels plus two receive channels. That arrangement suits equipment requiring more than one serial link, such as a local-control bus, service interface, or legacy peripheral connection. Its true RS-232 interface is intended for portable computers, handheld terminals, industrial equipment, and other embedded systems that must interoperate with established RS-232 ports. Typical applications include configuration-port links, handheld test equipment, point-of-sale systems, industrial controllers, and service interfaces for installed equipment. The integrated charge pump reduces external power-supply complexity, while the 16-pin WSOIC package supports compact surface-mount assembly. Because RS-232 is a point-to-point interface, each driver should feed one receiver and unused channels should be handled according to the manufacturer recommendations. The primary design consideration is correct charge-pump capacitor placement. Place the required 0.1 µF capacitors close to their associated supply and charge-pump pins, maintain short return paths, and provide adequate ground-plane continuity. Account for the additional supply current drawn by the charge pump when calculating power capacity, especially in portable equipment operating from a battery-derived 3.3 V rail. This product page consolidates the exact SP3232ECT-L operating facts, package information, verified source links, sourcing guidance, and engineering-oriented replacement analysis. It is intended to help designers evaluate the interface function, board-level implementation, and procurement requirements without relying on a generic RS-232 overview.
SP3232ECT-L/TR - 2/2 RS-232 Transceiver | MaxLinear
The MaxLinear SP3232ECT-L/TR is a 2-driver, 2-receiver RS-232 transceiver operating from a 3 V to 5.5 V single supply in a 16-pin SOIC package. It supports a minimum data rate of 120 kbit/s under full load and uses a charge-pump supply requiring only 0.1 µF capacitors in 3.3 V operation. The device is supplied in tape-and-reel packaging for automated assembly. An RS-232 transceiver is an interface IC that combines differential line drivers and receivers for point-to-point serial communication. It belongs to the transceiver and driver/receiver hierarchy within interface ICs, translating low-voltage digital logic levels into RS-232-compatible levels and converting received signals back into digital logic. This bidirectional level conversion allows equipment such as computers, test instruments, industrial controllers, and portable devices to communicate with legacy RS-232 equipment. The SP3232E series includes an efficient on-chip charge-pump supply, allowing true RS-232 operation from a single 3 V to 5.5 V rail. The manufacturer identifies the SP3232E family as meeting true EIA/TIA-232-F requirements from a supply as high as 5.5 V. A shutdown mode provides 1 µA low-power operation with receivers active, making the device useful in battery-powered portable equipment where unused drivers can be disabled without losing incoming data. The integrated 2/2 channel arrangement supports two RS-232 links through one compact IC. The 16-SOIC package is significantly smaller than most legacy DB9 connector implementations and is suitable for compact embedded products. Its 120 kbit/s minimum rate under full load is appropriate for serial console links, configuration interfaces, point-of-sale equipment, industrial service ports, and legacy peripheral connectivity rather than high-speed storage protocols. Typical uses include portable computers and handheld terminals, because the low-voltage supply and low-power shutdown suit constrained systems. The part can also bridge modern UART logic to RS-232 equipment, provide console access in industrial equipment, and support service interfaces where legacy compatibility remains necessary. The 3 V to 5.5 V operating range permits direct use from both 3.3 V and 5 V systems. Designers should follow the manufacturer’s recommended charge-pump capacitor network, place it close to the device, and provide the specified input and output bypass capacitance. Verify signal levels against the selected logic supply, keep RS-232 drivers away from sensitive analog circuitry, and review the EN and shutdown functions when power sequencing matters. Confirm the complete pin description and exposed-pad requirements against the current manufacturer datasheet before layout release.
SP3232ECY-L - 120kbps 3-5.5V RS-232 | MaxLinear
MaxLinear, Inc. SP3232ECY-L is a true +3.0V to +5.5V RS-232 transceiver integrated circuit with two drivers and two receivers in a 16-TSSOP package. It supports data rates up to 120kbps and operates from 3V to 5.5V, making it suitable for portable equipment, data acquisition systems, and industrial serial interfaces. An RS-232 transceiver is an interface IC that converts between complementary TTL/CMOS logic levels and bipolar RS-232 signal levels. The SP3232ECY-L combines two transmit channels, two receive channels, and an integrated charge-pump supply in one package. Its charge-pump circuit enables true RS-232 operation from a single low-voltage supply without requiring a separate negative power rail. The device operates across a 3V to 5.5V supply range and is specified for a 120kbps data rate. The verified specifications identify a 1mA supply current and a commercial operating-temperature range of 0°C to 70°C. Its high-efficiency charge-pump supply requires only 0.1µF capacitors when operating at 3.3V, helping reduce external component count and board area. The SP3232ECY-L is a full-duplex RS-232 interface solution with two drivers and two receivers. According to the manufacturer datasheet, the device meets true EIA/TIA-232-F standards from a +3.0V to +5.5V power supply. Shutdown behavior and low-power specifications beyond the verified 1mA supply-current figure require confirmation against the complete manufacturer datasheet before a design is finalized. Typical uses include serial links in notebook and palmtop-class equipment, portable instrumentation, point-of-sale terminals, industrial controllers, and peripheral connectivity. The 120kbps rate is suitable for legacy RS-232 traffic but does not target modern high-speed differential buses such as USB, Ethernet, or isolated CAN. Designers should use the package pinout and reference layout in the manufacturer datasheet, place charge-pump capacitors close to the device, and observe the maximum package and supply ratings. The exact pin names, absolute maximum ratings, driver output levels, receiver thresholds, shutdown currents, and recommended external network values are not available in the supplied search excerpts and require direct datasheet verification. This product data consolidates verified pricing, distributor availability, package information, interface characteristics, cross-reference results, and engineering-oriented selection guidance. It also distinguishes true drop-in alternatives from functional equivalents that require a different package or footprint, avoiding unsupported replacement recommendations.
SP3232ECY-L/TR - 120kbps 3-5.5V RS-232 | MaxLinear (Tape & Reel)
MaxLinear, Inc. SP3232ECY-L/TR is a true +3.0V to +5.5V RS-232 transceiver integrated circuit with two drivers and two receivers in a 16-TSSOP package. It supports data rates up to 120kbps and operates from 3V to 5.5V, making it suitable for portable equipment, data acquisition systems, and industrial serial interfaces. An RS-232 transceiver is an interface IC that converts between complementary TTL/CMOS logic levels and bipolar RS-232 signal levels. The SP3232ECY-L/TR combines two transmit channels, two receive channels, and an integrated charge-pump supply in one package. Its charge-pump circuit enables true RS-232 operation from a single low-voltage supply without requiring a separate negative power rail. The device operates across a 3V to 5.5V supply range and is specified for a 120kbps data rate. The verified specifications identify a 1mA supply current and a commercial operating-temperature range of 0°C to 70°C. Its high-efficiency charge-pump supply requires only 0.1µF capacitors when operating at 3.3V, helping reduce external component count and board area. The SP3232ECY-L/TR is a full-duplex RS-232 interface solution with two drivers and two receivers. According to the manufacturer datasheet, the device meets true EIA/TIA-232-F standards from a +3.0V to +5.5V power supply. Shutdown behavior and low-power specifications beyond the verified 1mA supply-current figure require confirmation against the complete manufacturer datasheet before a design is finalized. Typical uses include serial links in notebook and palmtop-class equipment, portable instrumentation, point-of-sale terminals, industrial controllers, and peripheral connectivity. The 120kbps rate is suitable for legacy RS-232 traffic but does not target modern high-speed differential buses such as USB, Ethernet, or isolated CAN. Designers should use the package pinout and reference layout in the manufacturer datasheet, place charge-pump capacitors close to the device, and observe the maximum package and supply ratings. The exact pin names, absolute maximum ratings, driver output levels, receiver thresholds, shutdown currents, and recommended external network values are not available in the supplied search excerpts and require direct datasheet verification. This product data consolidates verified pricing, distributor availability, package information, interface characteristics, cross-reference results, and engineering-oriented selection guidance. It also distinguishes true drop-in alternatives from functional equivalents that require a different package or footprint, avoiding unsupported replacement recommendations.
SP3232EEA-L - 120kbps RS-232 Transceiver | MaxLinear
The MaxLinear, Inc. SP3232EEA-L is a 2/2 full-duplex RS-232 transceiver with a maximum data rate of 120 kbps, a 3 V to 5.5 V supply range, and a 16-pin SSOP package. It integrates two RS-232 drivers and two receivers with an on-chip charge-pump power supply, allowing true RS-232 operation from a single low-voltage supply. The operating temperature range is -40°C to +85°C, supporting industrial, portable, and embedded equipment. An RS-232 transceiver is an interface IC that converts a low-voltage logic-level signal into RS-232 voltage levels and receives RS-232 signals back into logic-level outputs. In the electronic-component hierarchy, it belongs to the interface IC family and provides physical-layer communication between a host controller and an external data link. Its integrated charge pump eliminates the need for a separate external RS-232 voltage source. Key features include true EIA/TIA-232-F operation, 120 kbps minimum signaling under full load, 1 mA supply current, and shutdown-related current as low as 1 µA. The charge-pump implementation requires only 0.1 µF capacitors when operated at 3.3 V. Enhanced ESD protection reaches ±15 kV under IEC 61000-4-2 and ±15 kV under the Human Body Model, helping protect ports used in exposed or industrial environments. The SP3232EEA-L combines two transmit channels with two receive channels in one 16-SSOP device. This channel density suits compact point-to-point links, equipment consoles, industrial controllers, and service interfaces. Its 3 V to 5.5 V operating range allows use with both 3.3 V and 5 V system rails, while the -40°C to +85°C range supports designs deployed beyond room temperature. Typical applications include handheld equipment, notebook and peripheral adapters, industrial control panels, instrumentation, and embedded systems that exchange data through a legacy RS-232 port. The device is especially useful where a modern low-voltage controller must communicate with existing RS-232 equipment without adding a separate negative-voltage supply and discrete level-shifting circuitry. PCB design should place the charge-pump capacitors close to their associated pins and route the RS-232 traces away from sensitive clocks and analog signals. External protection may still be required for long cables or severe industrial transients. Verify the exact SP3232EEA-L pin functions against the manufacturer datasheet before layout because the verified distributor excerpts do not publish a complete pin table. This page combines verified distributor specifications, manufacturer documentation, strict same-package replacement analysis, and practical design guidance to support faster component selection and implementation of the SP3232EEA-L RS-232 interface.
SP3232EEN-L - 120kbps RS-232 Transceiver | MaxLinear
MaxLinear SP3232EEN-L is a 2-driver, 2-receiver full RS-232 transceiver operating up to 120 kbps from a 3 V to 5.5 V supply in a 16-pin SOIC package. The device also supports a 1 µA shutdown mode, uses 0.1 µF charge-pump capacitors in 3.3 V operation, and is specified for an industrial temperature range of -40°C to +85°C. Its enhanced ESD protection reaches ±15 kV under the IEC 61000-4-2 or HBM models identified in the verified source material. An RS-232 transceiver is an interface IC that bridges TTL/CMOS logic and unbalanced, differential RS-232 signals. The SP3232E series belongs to the interface-IC hierarchy and integrates two line drivers, two line receivers, a charge-pump supply, and power-management functions. This integration allows a portable or embedded product to communicate with RS-232 equipment without implementing external level-shifting transistors and separate negative-voltage generation circuitry. The principal operating specifications include 120 kbps data rate, a 3 V to 5.5 V supply range, approximately 1 mA supply current, and 1 µA shutdown current as reported by the verified distributor and technical-search results. The high-efficiency charge-pump design permits only 0.1 µF capacitors in 3.3 V operation. These characteristics support low-power portable equipment while reducing external component count and simplifying board layout. Technically, the device uses a charge pump to generate the positive and negative voltages required by RS-232 line drivers. The SP3232EEN-L combines two transmitters and two receivers in one 16-pin SOIC, making it suitable for bidirectional serial links that do not require more than two channels. The verified material identifies true RS-232 operation from a single supply and compliance with EIA/TIA-232-F; detailed slew-rate, receiver-threshold, and channel-isolation values remain in the manufacturer datasheet. Typical uses include portable data-collection equipment, notebook and palmtop computer peripherals, industrial service interfaces, configuration ports, and embedded systems that exchange serial commands with RS-232 equipment. The 16-pin SOIC format is useful for compact commercial and industrial boards, while the -40°C to +85°C rating supports temperature-controlled equipment beyond ordinary consumer environments. Designers should follow the manufacturer datasheet for charge-pump capacitor selection, VCC decoupling, and signal routing. Capacitors should be placed close to their associated pins, and the RS-232 cable interface should include the required protection and grounding arrangement. Supply and signal paths should be kept separate to prevent charge-pump and digital switching energy from coupling into communication lines. This product record combines verified distributor specifications, official manufacturer documentation, price references, and carefully qualified drop-in alternatives. It also adds practical application guidance, selection criteria, and comparison parameters that are not normally consolidated on a basic distributor listing.
SP3232EEN-L/TR - 120kbps RS-232 Transceiver | MaxLinear (Tape & Reel)
MaxLinear SP3232EEN-L/TR is a 2-driver, 2-receiver full RS-232 transceiver operating up to 120 kbps from a 3 V to 5.5 V supply in a 16-pin SOIC package. The device also supports a 1 µA shutdown mode, uses 0.1 µF charge-pump capacitors in 3.3 V operation, and is specified for an industrial temperature range of -40°C to +85°C. Its enhanced ESD protection reaches ±15 kV under the IEC 61000-4-2 or HBM models identified in the verified source material. An RS-232 transceiver is an interface IC that bridges TTL/CMOS logic and unbalanced, differential RS-232 signals. The SP3232E series belongs to the interface-IC hierarchy and integrates two line drivers, two line receivers, a charge-pump supply, and power-management functions. This integration allows a portable or embedded product to communicate with RS-232 equipment without implementing external level-shifting transistors and separate negative-voltage generation circuitry. The principal operating specifications include 120 kbps data rate, a 3 V to 5.5 V supply range, approximately 1 mA supply current, and 1 µA shutdown current as reported by the verified distributor and technical-search results. The high-efficiency charge-pump design permits only 0.1 µF capacitors in 3.3 V operation. These characteristics support low-power portable equipment while reducing external component count and simplifying board layout. Technically, the device uses a charge pump to generate the positive and negative voltages required by RS-232 line drivers. The SP3232EEN-L/TR combines two transmitters and two receivers in one 16-pin SOIC, making it suitable for bidirectional serial links that do not require more than two channels. The verified material identifies true RS-232 operation from a single supply and compliance with EIA/TIA-232-F; detailed slew-rate, receiver-threshold, and channel-isolation values remain in the manufacturer datasheet. Typical uses include portable data-collection equipment, notebook and palmtop computer peripherals, industrial service interfaces, configuration ports, and embedded systems that exchange serial commands with RS-232 equipment. The 16-pin SOIC format is useful for compact commercial and industrial boards, while the -40°C to +85°C rating supports temperature-controlled equipment beyond ordinary consumer environments. Designers should follow the manufacturer datasheet for charge-pump capacitor selection, VCC decoupling, and signal routing. Capacitors should be placed close to their associated pins, and the RS-232 cable interface should include the required protection and grounding arrangement. Supply and signal paths should be kept separate to prevent charge-pump and digital switching energy from coupling into communication lines. This product record combines verified distributor specifications, official manufacturer documentation, price references, and carefully qualified drop-in alternatives. It also adds practical application guidance, selection criteria, and comparison parameters that are not normally consolidated on a basic distributor listing.
SP3232EEP-L - Dual RS-232 Transceiver | MaxLinear
MaxLinear SP3232EEP-L is a full-duplex RS-232 transceiver integrating two drivers and two receivers in a 16-pin PDIP package. It operates from a single 3.3 V to 5.5 V supply and supports true RS-232 signal levels, making it suitable for portable equipment and systems that need bidirectional serial communication over longer distances than a logic-level interface can provide. An RS-232 transceiver is an interface IC that converts between single-ended logic-level signals and the bipolar voltage levels defined by the RS-232 standard. The transmitter raises and inverts data signals for transmission, while the receiver converts incoming bipolar signals into CMOS-compatible logic. A dual-transceiver device provides two independent communication paths and is commonly used in console ports, data acquisition equipment, instrumentation, and embedded control systems. The SP3232E family uses an on-chip charge-pump supply and associated external capacitors to generate the positive and negative voltages required for true RS-232 operation. MaxLinear states that the SP3232E charge pump can operate with only 0.1 uF capacitors in 3.3 V systems. This capacitor requirement helps reduce board area while preserving the voltage levels needed by RS-232 receivers and drivers. The SP3232EEP-L combines the electrical functions of two RS-232 transmitters and two RS-232 receivers in one device. Its 16-pin PDIP format is suitable for conventional through-hole assembly, prototyping, repair work, and industrial or legacy control equipment. Because the package uses through-hole leads, it also provides generous mechanical spacing and is generally easier to inspect or rework than a fine-pitch surface-mount package. Typical applications include RS-232 console connections, laboratory and test equipment, industrial controller interfaces, configuration ports, and embedded systems that communicate with older peripherals. The two-driver, two-receiver organization allows simultaneous transmit and receive activity on each channel where the connected equipment supports full-duplex RS-232 communication. Design the charge-pump capacitor network with the values and layout specified in the manufacturer datasheet. Keep the transceiver close to the connector, provide a common ground path between the systems, route the differential charge-pump capacitor connections away from sensitive analog circuitry, and confirm that the selected connector and cable satisfy the intended RS-232 application. This product page combines the device architecture, package information, application guidance, sourcing workflow, and a structured list of datasheet and cross-reference resources. It also distinguishes confirmed drop-in substitutions from candidates that require pinout, package, and electrical verification before being used in a replacement design.
SP3232EET-L - 120 kbps RS-232 Transceiver | MaxLinear
The MaxLinear SP3232EET-L is a true +3.0 V to +5.5 V RS-232 transceiver in a 16-SOIC package, providing two transmit and two receive channels at up to 120 kbps. It is designed for portable and handheld equipment, including notebook computers, palmtop computers, and other portable serial interfaces. An RS-232 transceiver is an interface IC that converts logic-level digital signals into RS-232 line levels and converts incoming RS-232 signals back into logic-level signals. The SP3232EET-L belongs to the interface IC hierarchy: RS-232 interface IC > line-driver and line-receiver transceiver > communications interface semiconductor. Its integrated charge-pump power supply supports true RS-232 operation from a single low-voltage supply while reducing the external capacitor count. The device operates from a +3.0 V to +5.5 V supply and supports data rates up to 120 kbps under full load. The manufacturer datasheet identifies the SP3222E/SP3232E family as suitable for portable or hand-held applications and states that the high-efficiency charge-pump supply requires only 0.1 uF capacitors in 3.3 V operation. Its 1 mA supply-current specification supports low-power interface designs, while the -40 C to +85 C operating-temperature range supports industrial and commercial equipment. The SP3232EET-L contains two RS-232 drivers and two RS-232 receivers in a 16-SOIC package. It is appropriate for systems that require bidirectional serial communication, including point-to-point links, service consoles, industrial controllers, data-acquisition equipment, and portable peripheral connections. The -L ordering suffix identifies the leaded package variant identified in the verified distributor records. A key design consideration is the charge-pump capacitor network. The datasheet states that the SP3232E series requires only 0.1 uF capacitors for 3.3 V operation. These capacitors should be placed close to the charge-pump pins, with short and symmetric routing helping reduce switching disturbance and ensuring stable operation. This product page consolidates the verified distributor specifications, manufacturer datasheet information, package details, pricing references, and available drop-in alternatives. It is intended to help engineers identify whether the SP3232EET-L fits a low-voltage, moderate-speed RS-232 interface before committing to a PCB layout.
SP3232EEY-L - 120kbps Dual RS-232 | MaxLinear | TSSOP-16
The MaxLinear, Inc. SP3232EEY-L is a 120 kbps, dual RS-232 transceiver with two drivers and two receivers, operating from a single 3.0 V to 5.5 V supply in a 16-pin TSSOP package. It provides true RS-232 interface conversion between TTL/CMOS logic levels and EIA/TIA-232-F signals. A high-efficiency charge-pump supply supports low-voltage operation and requires only 0.1 µF capacitors at 3.3 V. An RS-232 transceiver is an interface IC that translates digital logic-level signals into voltage-limited, polarity-aware differential signals used by RS-232 links. Within the hierarchy of interface circuits, it connects UART-compatible logic to serial equipment through the RS-232 electrical standard. This makes the SP3232EEY-L useful where a modern embedded system must communicate with legacy, industrial, or service equipment through a wired serial port. The SP3232EEY-L supports data rates up to 120 kbps under full load and accepts a 3.0 V to 5.5 V operating supply range. Its 1 mA supply-current specification suits portable and embedded systems, while the 16-pin TSSOP package supports compact surface-mount PCB layouts. The two-driver, two-receiver arrangement can implement two RS-232 channels or provide driver and receiver resources for one channel. Its charge-pump architecture generates the positive and negative voltage levels needed by true RS-232 operation without a separate bipolar supply. At 3.3 V, the manufacturer documentation specifies operation with 0.1 µF charge-pump capacitors. The external capacitor selection and layout remain important because an unsuitable capacitor type or long trace can increase output distortion or reduce reliable data-rate margin. Typical applications include embedded UART expansion, portable diagnostic equipment, industrial serial interfaces, point-of-sale terminals, security equipment, and service-console adapters. The device is particularly appropriate for equipment that must use a full RS-232 interface while operating from a 3.3 V or 5 V logic supply rather than a conventional ±12 V RS-232 supply. When designing around the SP3232EEY-L, verify the exact pin assignments, charge-pump capacitor requirements, and transceiver enable or shutdown behavior against the manufacturer datasheet before PCB release. Place the required capacitors close to their associated pins, provide a solid ground connection, and route connector-facing driver outputs away from sensitive receiver and logic signals. This product page combines the verified manufacturer specifications, distributor availability information, same-family drop-in candidates, and practical interface-design guidance. It also distinguishes verified electrical attributes from parameters that still require datasheet confirmation, helping engineers evaluate fit before committing a compact RS-232 design to production.
SP3232EEY-L/TR - 120kbps Dual RS-232 | MaxLinear | TSSOP-16 (Tape & Reel)
The MaxLinear, Inc. SP3232EEY-L/TR is a 120 kbps, dual RS-232 transceiver with two drivers and two receivers, operating from a single 3.0 V to 5.5 V supply in a 16-pin TSSOP package. It provides true RS-232 interface conversion between TTL/CMOS logic levels and EIA/TIA-232-F signals. A high-efficiency charge-pump supply supports low-voltage operation and requires only 0.1 µF capacitors at 3.3 V. An RS-232 transceiver is an interface IC that translates digital logic-level signals into voltage-limited, polarity-aware differential signals used by RS-232 links. Within the hierarchy of interface circuits, it connects UART-compatible logic to serial equipment through the RS-232 electrical standard. This makes the SP3232EEY-L/TR useful where a modern embedded system must communicate with legacy, industrial, or service equipment through a wired serial port. The SP3232EEY-L/TR supports data rates up to 120 kbps under full load and accepts a 3.0 V to 5.5 V operating supply range. Its 1 mA supply-current specification suits portable and embedded systems, while the 16-pin TSSOP package supports compact surface-mount PCB layouts. The two-driver, two-receiver arrangement can implement two RS-232 channels or provide driver and receiver resources for one channel. Its charge-pump architecture generates the positive and negative voltage levels needed by true RS-232 operation without a separate bipolar supply. At 3.3 V, the manufacturer documentation specifies operation with 0.1 µF charge-pump capacitors. The external capacitor selection and layout remain important because an unsuitable capacitor type or long trace can increase output distortion or reduce reliable data-rate margin. Typical applications include embedded UART expansion, portable diagnostic equipment, industrial serial interfaces, point-of-sale terminals, security equipment, and service-console adapters. The device is particularly appropriate for equipment that must use a full RS-232 interface while operating from a 3.3 V or 5 V logic supply rather than a conventional ±12 V RS-232 supply. When designing around the SP3232EEY-L/TR, verify the exact pin assignments, charge-pump capacitor requirements, and transceiver enable or shutdown behavior against the manufacturer datasheet before PCB release. Place the required capacitors close to their associated pins, provide a solid ground connection, and route connector-facing driver outputs away from sensitive receiver and logic signals. This product page combines the verified manufacturer specifications, distributor availability information, same-family drop-in candidates, and practical interface-design guidance. It also distinguishes verified electrical attributes from parameters that still require datasheet confirmation, helping engineers evaluate fit before committing a compact RS-232 design to production.
SP3232EHCA-L/TR - 3.3V 460kbps RS-232 Transceiver | MaxLinear
The MaxLinear SP3232EHCA-L/TR is a 3.3V RS-232 interface transceiver with two drivers, two receivers, a 460 kbps data rate, and a 16-pin SSOP package. It operates from a 3 V to 5.5 V supply and supports true EIA/TIA-232-F signaling from a supply as low as 2.7 V. Enhanced ESD protection reaches 15 kV under the Human Body Model. An RS-232 transceiver is an interface IC that converts logic-level signals between a digital system and the voltage-defined RS-232 port. The SP3232EH series belongs to the transceiver hierarchy within interface ICs, bridging embedded controllers, data-processing equipment, and legacy serial peripherals. Its two-driver, two-receiver arrangement supports full-duplex communication while keeping the external interface compact. The main engineering features include a 460 kbps maximum data rate, operation across 3 V to 5.5 V, true EIA/TIA-232-F compliance, interoperability with RS-232 equipment operating from a 2.7 V supply, and enhanced 15 kV HBM ESD protection. The charge-pump supply architecture requires only 0.1 µF capacitors in 3.3 V operation, reducing external component count compared with implementations that need larger energy-storage capacitors. Designed for portable and hand-held equipment, the SP3232EH combines four interface channels with low-voltage operation. Charge-pump circuitry generates the bipolar voltage levels required by RS-232 while the logic-side interface remains compatible with modern digital supply rails. Its 16-pin SSOP format supports compact layouts where a higher-pin-count package would be unnecessary. Typical uses include notebook and palmtop computer serial ports, handheld instrumentation, point-of-sale equipment, industrial data acquisition, and embedded systems that retain an RS-232 connection. The 460 kbps capability is suitable for moderate-speed serial links, while 15 kV HBM protection improves interface robustness in exposed equipment. When laying out the circuit, keep the charge-pump capacitors and RS-232 charge-pump nodes close to the device, preserve the datasheet-defined capacitor values, and route driver outputs and receiver inputs away from sensitive logic. Confirm that the selected cable and connector provide the intended ground reference and protection arrangement for the installation environment. This product record combines electrical specifications, same-footprint family alternatives, application guidance, and design-focused considerations to support faster component selection, PCB planning, and RS-232 interface qualification.