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MAX211CDB

MAX211CDB - 120 kbit/s 4/5 RS-232 Transceiver | Texas Instruments

The Texas Instruments MAX211CDB is a 5 V multichannel RS-232 line driver and receiver with four drivers, five receivers, operation up to 120 kbit/s, and ±15 kV human-body-model ESD protection on the bus pins. It is packaged in a 28-pin SSOP. According to the Texas Instruments product page, its driver outputs swing to ±9 V, allowing it to meet the voltage requirements of RS-232 systems operating from one 5 V supply. An RS-232 transceiver is an interface IC that converts logic-level signals into differential, voltage-swinged serial signals and converts received RS-232 levels back into logic-level voltages. In the interface hierarchy, the MAX211CDB belongs to the RS-232 transceiver, interface IC, and semiconductor categories. Its four-driver and five-receiver arrangement supports multiport communications equipment while providing three driver channels in shutdown for applications requiring partial low-power operation. Key features include four drivers, five receivers, a 120 kbit/s operating rate, ±9 V driver output swing, ±15 kV ESD protection, and low supply current in shutdown. The integrated charge-pump circuitry supports single-supply operation. These characteristics make the device suitable for computers, industrial controllers, data-acquisition equipment, and other systems that exchange serial data over longer cable runs than TTL or CMOS interfaces can reliably support. The RS-232 electrical interface uses unbalanced, single-ended signaling with a large voltage range relative to common-mode noise. The MAX211CDB is designed for TIA/EIA-232-F and ITU V.28 operation, as stated in the retrieved manufacturer-material summary. Its receiver and driver circuitry provide the voltage translation required at the boundary between digital logic and the RS-232 cable interface. The integrated ESD protection is particularly valuable when an exposed connector receives cable transients. Typical uses include four-wire RS-232 links, multi-channel serial adapters, test equipment, and embedded systems that retain legacy peripheral connections. In a complete interface, the controller UART connects to TTL-level driver inputs, while each driver output feeds an external connector through the application’s protection and routing network. Receivers return cable signals to the UART through external resistor networks when the selected pinout calls for them. Designers should confirm the exact DB package pinout and external charge-pump capacitor values from the manufacturer datasheet. Decoupling capacitors must be placed close to the supply pins, and cable-side routing should minimize exposed stubs. External protection, series resistance, and connector grounding should be selected with the target ESD, surge, and cable-length requirements in mind. This page consolidates verified manufacturer and distributor information, package details, RS-232 design considerations, and drop-in alternatives into an engineering-focused selection resource. It also distinguishes verified specifications from parameters that still require confirmation from the current manufacturer datasheet.

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MAX211CDBR

MAX211CDBR - 120 kbit/s 4/5 RS-232 Transceiver | Texas Instruments (Tape & Reel)

The Texas Instruments MAX211CDBR is a 5 V multichannel RS-232 line driver and receiver with four drivers, five receivers, operation up to 120 kbit/s, and ±15 kV human-body-model ESD protection on the bus pins. It is packaged in a 28-pin SSOP. According to the Texas Instruments product page, its driver outputs swing to ±9 V, allowing it to meet the voltage requirements of RS-232 systems operating from one 5 V supply. An RS-232 transceiver is an interface IC that converts logic-level signals into differential, voltage-swinged serial signals and converts received RS-232 levels back into logic-level voltages. In the interface hierarchy, the MAX211CDBR belongs to the RS-232 transceiver, interface IC, and semiconductor categories. Its four-driver and five-receiver arrangement supports multiport communications equipment while providing three driver channels in shutdown for applications requiring partial low-power operation. Key features include four drivers, five receivers, a 120 kbit/s operating rate, ±9 V driver output swing, ±15 kV ESD protection, and low supply current in shutdown. The integrated charge-pump circuitry supports single-supply operation. These characteristics make the device suitable for computers, industrial controllers, data-acquisition equipment, and other systems that exchange serial data over longer cable runs than TTL or CMOS interfaces can reliably support. The RS-232 electrical interface uses unbalanced, single-ended signaling with a large voltage range relative to common-mode noise. The MAX211CDBR is designed for TIA/EIA-232-F and ITU V.28 operation, as stated in the retrieved manufacturer-material summary. Its receiver and driver circuitry provide the voltage translation required at the boundary between digital logic and the RS-232 cable interface. The integrated ESD protection is particularly valuable when an exposed connector receives cable transients. Typical uses include four-wire RS-232 links, multi-channel serial adapters, test equipment, and embedded systems that retain legacy peripheral connections. In a complete interface, the controller UART connects to TTL-level driver inputs, while each driver output feeds an external connector through the application’s protection and routing network. Receivers return cable signals to the UART through external resistor networks when the selected pinout calls for them. Designers should confirm the exact DB package pinout and external charge-pump capacitor values from the manufacturer datasheet. Decoupling capacitors must be placed close to the supply pins, and cable-side routing should minimize exposed stubs. External protection, series resistance, and connector grounding should be selected with the target ESD, surge, and cable-length requirements in mind. This page consolidates verified manufacturer and distributor information, package details, RS-232 design considerations, and drop-in alternatives into an engineering-focused selection resource. It also distinguishes verified specifications from parameters that still require confirmation from the current manufacturer datasheet.

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MAX211CDW

MAX211CDW - 5V 4/5 RS-232 Transceiver | Texas Instruments

The Texas Instruments MAX211CDW is a 5 V multichannel RS-232 line driver and receiver with four drivers, five receivers, ±9 V output levels, ±15 kV ESD protection, and operation up to 120 kbit/s in a 28-pin SOIC package. It provides the electrical interface between an asynchronous communication controller and a serial-port connector. An RS-232 transceiver is an interface IC that combines logic-level driver and receiver circuits with the voltage levels required by the TIA/EIA-232-F and ITU V.28 serial-interface standards. These devices translate low-voltage digital signals into bipolar RS-232 levels at the transmitter and convert received bipolar signals back into logic levels. The MAX211CDW also includes a dual charge-pump circuit for generating the required positive and negative voltage rails. Key features include four RS-232 drivers, five RS-232 receivers, a single 5 V supply, ±15 kV ESD protection on serial-port connection pins, and a maximum data rate of 120 kbit/s. The five receivers provide more receive channels than the four transmit channels, allowing additional modem-control or handshake signals to be monitored without requiring separate receiver circuitry. The MAX211CDW uses a dual charge-pump architecture together with four small external capacitors to produce the bipolar voltage levels required by an RS-232 link. According to the manufacturer product information, the device provides pin-to-pin ESD protection across the serial-port connection pins, including ground, and meets the electrical requirements of TIA/EIA-232-F. These characteristics make the IC appropriate for legacy and industrial asynchronous serial interfaces. Typical applications include industrial equipment controllers, data-acquisition systems, instrument interfaces, point-of-sale equipment, and RS-232 ports on embedded systems. The integrated protection is particularly useful where cables connect to external equipment through long or exposed routes, while the 120 kbit/s rate supports common asynchronous serial protocols and simple command exchanges. Designers should place the charge-pump capacitors close to their associated pins, maintain the recommended external-capacitor values, and provide adequate PCB ground connectivity. Decoupling near VCC is also important because the charge pump and switching elements can return ripple to the supply rail. A clean layout helps preserve signal integrity and makes the protection circuitry more effective. This page consolidates verified manufacturer and distributor information, identifies same-family drop-in candidates, and adds practical placement guidance, comparison parameters, and application-specific selection criteria that are not presented as a single block in the manufacturer datasheet.

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MAX211CDWR

MAX211CDWR - 5V 4/5 RS-232 Transceiver | Texas Instruments (Tape & Reel)

The Texas Instruments MAX211CDWR is a 5 V multichannel RS-232 line driver and receiver with four drivers, five receivers, ±9 V output levels, ±15 kV ESD protection, and operation up to 120 kbit/s in a 28-pin SOIC package. It provides the electrical interface between an asynchronous communication controller and a serial-port connector. An RS-232 transceiver is an interface IC that combines logic-level driver and receiver circuits with the voltage levels required by the TIA/EIA-232-F and ITU V.28 serial-interface standards. These devices translate low-voltage digital signals into bipolar RS-232 levels at the transmitter and convert received bipolar signals back into logic levels. The MAX211CDWR also includes a dual charge-pump circuit for generating the required positive and negative voltage rails. Key features include four RS-232 drivers, five RS-232 receivers, a single 5 V supply, ±15 kV ESD protection on serial-port connection pins, and a maximum data rate of 120 kbit/s. The five receivers provide more receive channels than the four transmit channels, allowing additional modem-control or handshake signals to be monitored without requiring separate receiver circuitry. The MAX211CDWR uses a dual charge-pump architecture together with four small external capacitors to produce the bipolar voltage levels required by an RS-232 link. According to the manufacturer product information, the device provides pin-to-pin ESD protection across the serial-port connection pins, including ground, and meets the electrical requirements of TIA/EIA-232-F. These characteristics make the IC appropriate for legacy and industrial asynchronous serial interfaces. Typical applications include industrial equipment controllers, data-acquisition systems, instrument interfaces, point-of-sale equipment, and RS-232 ports on embedded systems. The integrated protection is particularly useful where cables connect to external equipment through long or exposed routes, while the 120 kbit/s rate supports common asynchronous serial protocols and simple command exchanges. Designers should place the charge-pump capacitors close to their associated pins, maintain the recommended external-capacitor values, and provide adequate PCB ground connectivity. Decoupling near VCC is also important because the charge pump and switching elements can return ripple to the supply rail. A clean layout helps preserve signal integrity and makes the protection circuitry more effective. This page consolidates verified manufacturer and distributor information, identifies same-family drop-in candidates, and adds practical placement guidance, comparison parameters, and application-specific selection criteria that are not presented as a single block in the manufacturer datasheet.

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MAX211CWI+

MAX211CWI+ - 4/5 RS-232 Transceiver | Analog Devices

The Analog Devices MAX211CWI+ is a single-supply RS-232 and V.28 transceiver with four drivers, five receivers, integrated charge-pump circuitry, and a 28-pin wide SOIC package. It operates from 4.5V to 5.5V and supports data rates in excess of 120kbps. The device uses 0.1uF external charge-pump capacitors, while its drivers maintain the ±5V EIA/TIA-232E output levels specified for loaded operation. An RS-232 transceiver is an interface IC that converts between single-ended logic signals and the bipolar voltage levels used by RS-232 links. In the signal hierarchy, MAX211CWI+ belongs to interface ICs and uses driver and receiver sections to connect digital equipment across a serial cable. Its integrated charge pump doubles the supply and inverts it to produce positive and negative transmitter voltages from one +5V input. The principal feature is its four-driver, five-receiver arrangement, which suits equipment with several serial ports, control signals, or status lines. The MAX211 family is specified for data rates above 120kbps and uses four external 0.1uF capacitors for charge-pump operation. The wide SOIC package provides a leaded surface-mount format while keeping the board footprint compatible with the MAX211 family variants identified in the supplied references. The MAX211CWI+ is intended for +5V systems that need RS-232 drivers and receivers rather than RS-422 or RS-485 differential signaling. It can be used in data acquisition, industrial control, test equipment, and embedded serial ports. Because RS-232 is a single-ended, unbalanced interface, cable routing, grounding, and protection against transients remain important system-level considerations. A key design consideration is that the external charge-pump capacitors must be placed close to the device and selected according to the manufacturer guidance. The receiving logic threshold and driver output levels should be checked against the connected equipment, especially when cables are long or the link includes unprotected industrial wiring. The supplied data does not provide a full electrical limit table, so values not explicitly stated there are marked as data needed rather than inferred. This page combines the verified manufacturer and distributor product information with a cautious selection guide, package-aware comparison, and practical integration notes. It distinguishes confirmed MAX211 family details from parameters that require the complete manufacturer datasheet before design release.

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MAX211EAI+

MAX211EAI+ - 120kbps 4/5 RS-232 Transceiver | Analog Devices

The Analog Devices MAX211EAI+ is a +5 V RS-232 and V.28 transceiver with four line drivers, five line receivers, and integrated charge-pump circuitry in a 28-pin SSOP package. It supports data rates up to 120 kbps and uses four 0.1 uF external capacitors. The device provides the electrical interface between an asynchronous communication controller and an RS-232 serial-port connector. An RS-232 transceiver is an interface IC that converts logic-level signals between a host controller and a cable-based serial link. The MAX211 family combines drivers, receivers, and voltage-conversion circuitry into a single interface device. It belongs to the interface IC hierarchy and allows a +5 V system to communicate through RS-232 without requiring separate negative supply rails or external line-driver ICs. The MAX211EAI+ supports EIA/TIA-232E and CCITT V.28 operation at data rates up to 120 kbps when loaded according to the cited standards. Its four drivers maintain approximately plus or minus 5 V EIA/TIA-232E output levels, while the five receivers support the logic-side receive function. Four external 0.1 uF charge-pump capacitors allow operation from a single +5 V supply. The integrated dual charge-pump architecture generates the voltage required by the RS-232 line drivers and reduces the number of external supply rails required by the design. The MAX211EAI+ is packaged in the 28-pin SSOP package, identified as EAI in the ordering code. This package provides a compact option for industrial and communication equipment where board area is constrained but a conventional through-hole RS-232 package is unnecessary. Typical uses include industrial serial controllers, instrumentation, POS terminals, data-acquisition equipment, and embedded systems that require a +5 V RS-232 port. The 120 kbps capability is suitable for moderate-speed asynchronous serial communication, while the integrated drivers and receivers reduce the component count compared with separate transmitter and receiver devices. PCB design must reserve the four specified 0.1 uF capacitors and maintain the charge-pump routing recommended by the manufacturer datasheet. Keep high-current charge-pump loops compact, provide an uninterrupted ground plane, and place interface protection close to the connector because external cables can introduce ESD and surge events. This page combines verified manufacturer information, distributor availability, family-level drop-in guidance, package details, and practical PCB design considerations to help engineers evaluate the MAX211EAI+ for compact +5 V RS-232 interface designs.

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MAX211EEAI+

MAX211EEAI+ 4/5 RS-232 Transceiver | Analog Devices

Analog Devices MAX211EEAI+ is a four-driver, five-receiver RS-232 and V.28 transceiver with an integrated charge pump for operation from a single +5 V supply. It supports data rates in excess of 120 kbps, provides ±15 kV ESD protection on the RS-232 interface, and is packaged in a 28-pin SSOP. The MAX211 family is designed for bidirectional serial communication systems that require TTL/CMOS logic interfacing, compliant ±5 V RS-232 signal levels, and enhanced electrostatic protection. An RS-232 transceiver is an interface IC that converts between single-ended TTL or CMOS logic levels and differential, bipolar RS-232 signals. In the broader semiconductor hierarchy, the MAX211EEAI+ belongs to the interface IC family, combining line drivers, line receivers, and charge-pump voltage generation in one device. This integration allows a host controller or UART to connect to a cable-based RS-232 port without external level-shifting transistors or a separate negative supply rail. The device includes four TTL-compatible transmitters and five receivers. The transmitters produce the ±5 V output levels required by EIA/TIA-232E, while the receivers convert incoming RS-232 signals into logic-compatible levels. Its integrated charge-pump circuitry generates the positive and negative voltages required by the RS-232 drivers from one +5 V supply. The MAX211EEAI+ also supports data rates above 120 kbps when operated in accordance with the EIA/TIA-232E loading requirements. A major feature of the MAX211EEAI+ is its ±15 kV human-body-model ESD protection, which improves interface robustness in environments where cables may be connected or disconnected. The receive and transmit sections provide practical channel counts for systems requiring several serial links, status inputs, control signals, or bidirectional communication through one RS-232 connector. Its 28-pin SSOP package offers a compact surface-mount footprint compared with the larger 28-pin wide SO option also offered in the MAX211 family. Typical uses include industrial equipment interfaces, data-acquisition systems, instrumentation, service consoles, embedded serial adapters, and legacy peripheral connectivity. The device is especially useful when an embedded controller must communicate through a multi-channel RS-232 interface while maintaining a single +5 V power architecture. Because it is a bipolar RS-232 interface rather than a modern differential bus transceiver, it is best suited to point-to-point cable links and compatible equipment rather than long-distance, high-noise industrial Ethernet-style networks. Designers should provide the charge-pump capacitors specified by the manufacturer, connect unused inputs to defined logic levels, and treat the ESD-protected RS-232 pins as external connector pins. Keep the interface ground reference connected with the signal cable, route the interface connector and cable away from sensitive analog signals, and validate the complete board under the grounding conditions of the target system. This page combines the manufacturer specifications, package details, application guidance, comparison information, and verified drop-in candidates for engineers evaluating the MAX211EEAI+. It also highlights practical distinctions among confirmed SSOP-28 alternatives so PCB reuse can be assessed without confusing a package-compatible device with an electrically equivalent but differently pinned part.

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MAX211EWI+

MAX211EWI+ - 4/5 RS-232 Transceiver, 5V, 120kbps | ADI

The Analog Devices MAX211EWI+ is a four-driver, five-receiver RS-232 and V.28 transceiver designed for single +5 V supply operation. It supports data rates in excess of 120 kbps, maintains ±5 V EIA/TIA-232E driver output levels, and uses an integrated charge pump to generate the bipolar voltages required by RS-232. The device is supplied in a 28-pin wide SOIC package and requires four external 0.1 µF capacitors for charge-pump operation. An RS-232 transceiver is an interface IC that converts logic-level signals between a host or controller and a cable-based RS-232 link. Within the interface hierarchy, the MAX211EWI+ combines a charge-pump voltage converter, RS-232 line drivers, and line receivers into one mixed-signal device. This integration allows a single +5 V system to communicate with legacy RS-232 equipment without a separate negative supply or external RS-232 line-power circuit. Key features include four RS-232 drivers, five receivers, operation above 120 kbps, integrated charge-pump circuitry, and single-supply operation from a nominal +5 V rail. The four external 0.1 µF capacitors required by the EWI+ variant simplify voltage generation but must be placed close to their designated pins to limit charge-pump switching noise. The device provides ±5 V driver levels while operating from a 5 V supply, matching the classic RS-232 electrical requirement for bipolar signaling. The MAX211 architecture divides the transceiver into a charge-pump converter, four driver channels, and five receiver channels. Its integrated charge pump generates the positive and negative rail voltages used by the drivers. Because these rails are switched internally, PCB layout and capacitor placement materially affect radiated and conducted noise. The wide SOIC outline offers adequate lead spacing for through-hole assembly while occupying less area than a 28-pin standard SOIC. Typical applications include industrial serial controllers, test equipment, point-of-sale terminals, instrumentation, and data-acquisition systems. Five receiver channels allow one port to monitor four incoming RS-232 lines while the fourth transmitter drives a separate link, making the device useful for console and diagnostic interfaces. The 120 kbps-plus capability is appropriate for configuration links and moderate-rate data transfers rather than modern high-speed serial protocols. Designers should treat the external charge-pump capacitors and signal routing as critical layout elements. Keep the four 0.1 µF capacitors adjacent to their charge-pump pins, route the charge-pump output as a short and quiet net, and provide adequate bypass capacitance on the +5 V supply. Because the MAX211EWI+ is a legacy RS-232 interface rather than an EIA/TIA-422 or RS-485 transceiver, cable length, grounding, and protection-network design remain application-specific responsibilities. This page combines manufacturer specifications, distributor references, drop-in family alternatives, and application-focused design guidance. It highlights the practical differences between temperature and packaging order codes and identifies the verification gaps that must be closed before a PCB redesign or cross-brand substitution is approved.

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MAX211IDB

MAX211IDB - 5V RS-232 Transceiver, 120kbps, ±15kV ESD | TI

The Texas Instruments MAX211IDB is a 5-V multichannel RS-232 line driver/receiver with ±15 kV ESD protection, packaged in a 28-pin SSOP (DB). The device integrates four line drivers, five line receivers, and a dual charge-pump circuit, supports data rates up to 120 kbps, and provides ±9 V output swing for compliant TIA/EIA-232-F signaling. What is an RS-232 line driver/receiver? An RS-232 transceiver is an interface IC that translates between the low-voltage logic levels used by a UART or microcontroller (typically 0 V to 5 V or 3.3 V) and the higher-voltage bipolar signaling levels required by the legacy TIA/EIA-232-F standard (±5 V to ±15 V). It belongs to the broader family of line transceivers (interface ICs > drivers, receivers, transceivers) and acts as the electrical translator between an asynchronous communication controller and a DB-9 or DB-25 serial-port connector. The on-chip charge pump generates the bipolar rails from a single 5 V supply, eliminating the need for external ±12 V power. Key features of the MAX211IDB include integrated dual charge pump with four external 0.1 µF capacitors, ±15 kV ESD protection on serial-port connection pins (Human-Body Model per TIA/EIA-232-F requirements), four drivers and five receivers, true TTL/CMOS input compatibility on receiver inputs, and a low 1.5 mA typical supply current. The device operates from a single 5 V supply and requires no external ±12 V rails, simplifying industrial and embedded designs. Internally the MAX211IDB uses a switched-capacitor voltage converter (charge pump) to derive +10 V and -10 V from the 5 V input. These rails feed the drivers, allowing them to swing beyond the supply rails per RS-232 specifications. The drivers are inverting (true RS-232 inverters), while the receivers invert again so overall the data path is non-inverting between the UART TX/RX lines and the cable-side DTR/DSR/RTS/CTS/RI/DCD lines. Typical applications include industrial PCs and point-of-sale terminals, serial-port debug consoles on embedded systems, legacy modem interfaces, factory automation controllers, and any system requiring TIA/EIA-232-F signaling from a single 5 V rail. When designing with this part, place the four charge-pump capacitors as close to the IC pins as possible and provide adequate ground plane beneath the SSOP-28 body to keep EMI and supply ripple low.

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MAX211IDBR

MAX211IDBR - 5V RS-232 Transceiver, 120kbps, ±15kV ESD | TI (Tape & Reel)

The Texas Instruments MAX211IDBR is a 5-V multichannel RS-232 line driver/receiver with ±15 kV ESD protection, packaged in a 28-pin SSOP (DB). The device integrates four line drivers, five line receivers, and a dual charge-pump circuit, supports data rates up to 120 kbps, and provides ±9 V output swing for compliant TIA/EIA-232-F signaling. What is an RS-232 line driver/receiver? An RS-232 transceiver is an interface IC that translates between the low-voltage logic levels used by a UART or microcontroller (typically 0 V to 5 V or 3.3 V) and the higher-voltage bipolar signaling levels required by the legacy TIA/EIA-232-F standard (±5 V to ±15 V). It belongs to the broader family of line transceivers (interface ICs > drivers, receivers, transceivers) and acts as the electrical translator between an asynchronous communication controller and a DB-9 or DB-25 serial-port connector. The on-chip charge pump generates the bipolar rails from a single 5 V supply, eliminating the need for external ±12 V power. Key features of the MAX211IDBR include integrated dual charge pump with four external 0.1 µF capacitors, ±15 kV ESD protection on serial-port connection pins (Human-Body Model per TIA/EIA-232-F requirements), four drivers and five receivers, true TTL/CMOS input compatibility on receiver inputs, and a low 1.5 mA typical supply current. The device operates from a single 5 V supply and requires no external ±12 V rails, simplifying industrial and embedded designs. Internally the MAX211IDBR uses a switched-capacitor voltage converter (charge pump) to derive +10 V and -10 V from the 5 V input. These rails feed the drivers, allowing them to swing beyond the supply rails per RS-232 specifications. The drivers are inverting (true RS-232 inverters), while the receivers invert again so overall the data path is non-inverting between the UART TX/RX lines and the cable-side DTR/DSR/RTS/CTS/RI/DCD lines. Typical applications include industrial PCs and point-of-sale terminals, serial-port debug consoles on embedded systems, legacy modem interfaces, factory automation controllers, and any system requiring TIA/EIA-232-F signaling from a single 5 V rail. When designing with this part, place the four charge-pump capacitors as close to the IC pins as possible and provide adequate ground plane beneath the SSOP-28 body to keep EMI and supply ripple low.

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MAX211IDW

MAX211IDW - 5V 120kbps RS-232 Transceiver | Texas Instruments

Texas Instruments MAX211IDW is a 5 V multichannel RS-232 line driver and receiver with four drivers, five receivers, and ±15 kV ESD protection, packaged in a 28-pin SOIC. It supports data rates up to 120 kbit/s and operates across the industrial -40°C to +85°C temperature range. An RS-232 transceiver is an interface IC that converts logic-level signals into RS-232 line levels and converts received line-level signals back into digital logic. Within the interface hierarchy, MAX211IDW is a multichannel RS-232 transceiver built around four RS-232 line drivers, five line receivers, and a dual charge-pump circuit. This topology allows multiple serial channels to share one supply while providing bipolar voltage generation for the driver outputs. Key features include a 5 V supply, operation to 120 kbit/s, four line drivers, five line receivers, and ±15 kV ESD protection across the serial-port connection pins, including ground. The device is designed to meet the requirements of TIA/EIA-232-F and ITU V.28. Its additional fifth receiver provides flexibility for monitoring a modem handshake signal when the four main driver and receiver channels are already assigned. The MAX211 architecture uses a dual charge-pump circuit to generate the positive and negative voltages required by RS-232 drivers. Four small external capacitors support charge-pump operation. The resulting interface can place a communication controller on the logic side and a DB9 or other RS-232 connector on the line side without requiring discrete level-shifting circuits. Pin-to-pin ESD protection extends robustness across exposed serial-port connections. Typical uses include industrial serial-port adapters, data-acquisition equipment, POS terminals, service interfaces, and legacy computer peripherals. The 120 kbit/s operating rate supports moderate-speed asynchronous communication, while the four-driver and five-receiver arrangement is useful for systems requiring several handshake or control lines. The -40°C to +85°C range also suits industrial environments where commercial-temperature interface ICs may be insufficient. Designers should use the manufacturer's charge-pump capacitor and bypass-capacitor recommendations, place the external capacitors close to their pins, and keep sensitive logic and communications routing separated from exposed connector and ESD paths. The device is marked last-time-buy by a verified distributor listing, so new designs should confirm availability and consider a supported modern interface before committing to a large production run. This page combines verified manufacturer and distributor information with lifecycle context, drop-in alternatives, comparison parameters, and practical interface-design guidance. It highlights where MAX211IDW remains suitable for multichannel RS-232 and where supply availability or newer USB-to-serial solutions may be more appropriate.

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MAX211IDWR

MAX211IDWR - 5V 120kbps RS-232 Transceiver | Texas Instruments (Tape & Reel)

Texas Instruments MAX211IDWR is a 5 V multichannel RS-232 line driver and receiver with four drivers, five receivers, and ±15 kV ESD protection, packaged in a 28-pin SOIC. It supports data rates up to 120 kbit/s and operates across the industrial -40°C to +85°C temperature range. An RS-232 transceiver is an interface IC that converts logic-level signals into RS-232 line levels and converts received line-level signals back into digital logic. Within the interface hierarchy, MAX211IDWR is a multichannel RS-232 transceiver built around four RS-232 line drivers, five line receivers, and a dual charge-pump circuit. This topology allows multiple serial channels to share one supply while providing bipolar voltage generation for the driver outputs. Key features include a 5 V supply, operation to 120 kbit/s, four line drivers, five line receivers, and ±15 kV ESD protection across the serial-port connection pins, including ground. The device is designed to meet the requirements of TIA/EIA-232-F and ITU V.28. Its additional fifth receiver provides flexibility for monitoring a modem handshake signal when the four main driver and receiver channels are already assigned. The MAX211 architecture uses a dual charge-pump circuit to generate the positive and negative voltages required by RS-232 drivers. Four small external capacitors support charge-pump operation. The resulting interface can place a communication controller on the logic side and a DB9 or other RS-232 connector on the line side without requiring discrete level-shifting circuits. Pin-to-pin ESD protection extends robustness across exposed serial-port connections. Typical uses include industrial serial-port adapters, data-acquisition equipment, POS terminals, service interfaces, and legacy computer peripherals. The 120 kbit/s operating rate supports moderate-speed asynchronous communication, while the four-driver and five-receiver arrangement is useful for systems requiring several handshake or control lines. The -40°C to +85°C range also suits industrial environments where commercial-temperature interface ICs may be insufficient. Designers should use the manufacturer's charge-pump capacitor and bypass-capacitor recommendations, place the external capacitors close to their pins, and keep sensitive logic and communications routing separated from exposed connector and ESD paths. The device is marked last-time-buy by a verified distributor listing, so new designs should confirm availability and consider a supported modern interface before committing to a large production run. This page combines verified manufacturer and distributor information with lifecycle context, drop-in alternatives, comparison parameters, and practical interface-design guidance. It highlights where MAX211IDWR remains suitable for multichannel RS-232 and where supply availability or newer USB-to-serial solutions may be more appropriate.

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MAX213ECAI+

MAX213ECAI+ - 5V RS-232 Transceiver, 15kV ESD, SSOP-28 | Maxim

The Maxim Integrated MAX213ECAI+ is a +5V-powered RS-232 transceiver with integrated charge-pump circuitry and ±15kV ESD protection, housed in a 28-pin SSOP package. It provides four drivers and five receivers in a TTL tri-state-compatible interface, operates from a single 4.5V to 5.5V supply, and supports data rates up to 120 kbps for asynchronous serial communication. A RS-232 transceiver is an interface IC that converts between TTL/CMOS logic levels (0V/5V) and the bipolar ±5V to ±15V signalling required by the RS-232 standard. It belongs to the broader family of line transceivers (RS-232, RS-422, RS-485), which themselves sit inside the interface ICs category and the larger umbrella of wired communication semiconductor components. By embedding the charge pump on-chip, the MAX213 eliminates the need for external ±12V supplies, simplifying PCB design in point-of-sale terminals, industrial controllers and embedded computing platforms. Key features include ±15kV ESD protection on every transmitter output and receiver input (per HBM), four RS-232 drivers and five RS-232 receivers in the SSOP-28 footprint, tri-state TTL/CMOS compatible receiver outputs, and an integrated charge pump that requires only four external 0.1 µF capacitors. The device operates across the commercial 0°C to 70°C temperature range, and its low supply current (~20 mA typical, unloaded) suits battery-backed systems that must wake serial ports only during transactions. Technically, the MAX213ECAI+ uses Maxim's BiCMOS process that combines bipolar drive transistors (for true ±5V RS-232 swing) with CMOS control logic. The charge pump runs as a voltage doubler and inverter from VCC=5V, generating V+ ≈ +10V and V- ≈ -10V which feed the driver output stages. Receivers implement a 0.8V/2.4V-thresholded Schmitt-trigger input structure with 5 kΩ pull-down resistors to ground, ensuring a defined logic-high output when the input is open-circuited. Internal slew-rate control limits data rates to ~120 kbps, which is well matched to legacy serial peripherals, debug consoles and embedded modem links. Typical applications include industrial PCs and point-of-sale equipment needing multi-port serial expansion, embedded microcontroller debug consoles, GPS receivers and GSM/cellular modules with RS-232 interfaces, and legacy peripheral interfaces such as optical mice, bar-code scanners and serial printers where robust ±15kV ESD handling protects against hot-plug discharge. When designing with this IC, keep charge-pump capacitor traces short (less than ~10 mm) and place the four 0.1 µF ceramics as close to C1+, C1-, C2+, C2- pins as possible. Reserve TVS diodes externally on the connector side for ESD events that exceed the on-chip rating, especially for cables longer than 3 metres. This page consolidates distributor pricing, drop-in alternative MPNs and practical PCB layout notes that go beyond the manufacturer's datasheet, giving engineers a one-stop reference for selecting, sourcing and laying out the MAX213ECAI+.

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MAX22025AWA+

MAX22025AWA+ - 3.5kVRMS Isolated RS-485 Transceiver | ADI

The Analog Devices (formerly Maxim Integrated) MAX22025AWA+ is a compact, isolated half-duplex RS-485/RS-422 transceiver that integrates 3.5kVRMS of digital galvanic isolation in an 8-pin wide-body SOIC package. It supports data rates up to 500 kbps and operates from a single 3.3V supply on the UART side, eliminating the need for an external isolated DC-DC converter in many designs. The wide-body SOIC provides 5.5mm of creepage, meeting IEC 60664 reinforced insulation requirements for industrial and renewable-energy installations. An RS-485/RS-422 transceiver is a differential line driver/receiver IC that translates a single-ended UART signal into a balanced differential pair. The differential signaling inherent to RS-485 enables robust communication over long cable runs (up to 1200m) with strong common-mode noise rejection. Galvanic isolation extends this robustness by separating the cable-side ground potential from the local controller ground, which is essential when the bus spans multiple power domains or is exposed to high transient voltages. Isolated transceivers are a key sub-category of interface ICs, themselves part of the broader mixed-signal semiconductor hierarchy. Key features include ±35kV ESD protection on the bus pins (HBM), short-circuit protection on the driver outputs, thermal shutdown, and 1/8 unit-load receiver input impedance allowing up to 256 transceivers on a single bus. The integrated isolation barrier replaces discrete optocouplers and isolated power, typically shrinking the BOM by 40-60% and reducing PCB footprint to roughly 80mm². The device supports -40°C to +85°C operation and is specified over a wide 3.0V to 5.5V UART-side VDD range. Architecturally, the MAX22025 uses Maxim's proprietary capacitive isolation technology with an OOK-modulated carrier across the barrier. The cable-side driver meets the RS-485 standard's 1.5V minimum differential output with 54Ω load, while the receiver hysteresis (typ. 30mV) ensures clean switching even on heavily attenuated signals. On-chip deglitch filters suppress transient bus spikes up to 150ns. Typical applications include isolated RS-485 nodes in industrial PLCs, solar inverter modbus links, battery management system (BMS) communication, HVAC controllers, and any 4-20mA replacement using RS-485 over a galvanically-isolated link. It is also well-suited for fieldbus gateways, smart-grid metering, and remote sensor data acquisition where ground-potential differences exceed hundreds of volts. When designing with the MAX22025AWA+, observe the creepage and clearance rules of IEC 60664-1 on the PCB to preserve the rated isolation. A bypass capacitor of 0.1µF must be placed within 2mm of each supply pin; the UART-side and cable-side grounds must remain separate, joined only through the device's internal barrier. Verify the driver slew rate at your chosen data rate to control EMI.

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MAX222CN

MAX222CN - 5V Dual RS-232 Transceiver | Texas Instruments

The Texas Instruments MAX222CN is a 5 V dual RS-232 line driver and receiver, also described as a two-driver, two-receiver full-duplex transceiver, with operation to 200 kbit/s and ±15 kV human-body-model ESD protection in an 18-pin PDIP package. The device is intended for legacy and industrial RS-232 links where a 5 V supply, through-hole construction, and dual-channel signal conditioning are required. An RS-232 transceiver is an interface IC that combines differential line-driver and receiver functions into a system-facing serial port. Its hierarchy is transceiver > RS-232 interface > line driver/receiver > semiconductor. The MAX222CN translates logic-level signals between a host UART and RS-232 line drivers, while its receivers convert incoming RS-232 levels into CMOS-compatible digital signals. The integrated dual-channel arrangement reduces the component count for two-wire, full-duplex RS-232 communication. Key verified features include a 5 V VCC supply, operation to 200 kbit/s, ±15 kV human-body-model ESD protection, low shutdown supply current, and external-capacitor charge-pump operation using 0.1 µF. The listed standards claim compliance with or exceedance of TIA/EIA-232-F and ITU V.28 requirements. Its 18-pin PDIP package supports through-hole PCB assembly rather than compact surface-mount layouts. The MAX222CN is a legacy RS-232 interface, not an RS-485 transceiver and not a modern USB-to-serial converter. Its receiver hysteresis and supply range are listed in distributor data, while the complete electrical limits should be checked in the manufacturer datasheet before using the part outside the stated conditions. The dual drivers and receivers support point-to-point RS-232 links, instrumentation connections, and embedded systems that already expose a UART. Typical uses include industrial control consoles, test equipment, serial adapters, and legacy peripheral interconnects. The principal design consideration is that RS-232 is a single-ended, unbalanced interface intended for shorter distances than differential buses. Designers should use suitable protection, grounding, and cable practices, and should not treat ±15 kV ESD protection as a substitute for external surge or lightning protection. This page consolidates the verified distributor descriptions, package information, RS-232 capability, and cross-reference research for MAX222CN. It does not invent electrical limits, pricing, or pin assignments that were not supplied in the verified data.

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MAX222IN

MAX222IN - 5V Dual RS-232 Interface | Texas Instruments

The Texas Instruments MAX222IN is a 5 V dual RS-232 line driver and receiver with ±15 kV ESD protection, operating at up to 200 kbit/s in an 18-pin PDIP package. It provides two transmit channels and two receive channels, making it suitable for bidirectional serial interfaces, instrumentation, industrial control, and data acquisition equipment. The device is designed to meet TIA/EIA-232-F and ITU V.28 interface requirements while operating from a single 5 V supply. An RS-232 transceiver is an interface IC that converts logic-level digital signals between a host or controller and a RS-232 communication link. Unlike a differential bus such as RS-485, RS-232 uses single-ended signaling with positive and negative voltage levels. The MAX222IN combines drivers, receivers, and internal level-shift capability in one package, reducing the number of external interface components required in a conventional RS-232 port. The MAX222IN operates from a 5 V VCC supply and supports data rates up to 200 kbit/s. Its two drivers and two receivers support full-duplex point-to-point communication when connected to the corresponding RS-232 lines. The verified product description also identifies ±15 kV human-body-model ESD protection, low shutdown supply current, and operation over a -40 °C to +85 °C temperature range. These characteristics make the device appropriate for both commercial and industrial equipment. The MAX222IN is packaged in an 18-pin PDIP, identified by the N package designation in the part number. The through-hole package is appropriate for systems assembled with conventional plated-through-hole components and for prototypes or industrial controllers where through-hole interchangeability is useful. The verified distributor listing identifies the device as a 2/2 full RS-232 transceiver in an 18-PDIP package. Typical uses include RS-232 ports in test equipment, serial adapters, embedded controllers, industrial instrumentation, and communications equipment. Designers should provide the required charge-pump capacitors, connect the supply and ground correctly, and route the RS-232 connector-side signals away from sensitive low-level circuitry. External protection, grounding, and isolation may be required when the cable is exposed to long, unshielded, or electrically noisy environments. The product information supplied here combines distributor listings, datasheet search results, and the MAX222 family datasheet link. It distinguishes verified specifications from unavailable parameters and does not infer electrical limits that are not present in the supplied data.

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MAX22513ATI+

MAX22513ATI+ - Dual IO-Link Transceiver, 36V, TQFN-28 | ADI

The Analog Devices MAX22513ATI+ is a dual-channel, low-power IO-Link device transceiver integrating a selectable control interface, a high-efficiency internal DC-DC buck regulator, two internal linear regulators, and integrated surge protection on every IO pin. Housed in a 28-pin TQFN-EP (5.5mm body) surface-mount package, the part operates from 8V to 36V and delivers C/Q plus DO/DI drivers with selectable current limits and overcurrent protection to minimize dissipation in fault conditions. The integrated surge protection of ±1kV/500Ω on all four IO pins (V24, C/Q, DO/DI, GND) is unique among IO-Link transceivers and eliminates external TVS arrays in most designs. An IO-Link device transceiver is a mixed-signal interface that sits between an industrial sensor/actuator and an IO-Link master, handling the IEC 61131-9 physical layer: the C/Q line carries the wake-up pulse, the COM1/COM2/COM3 framed communication, and the high-current switching output; DO/DI provides an auxiliary digital channel. IO-Link transceivers belong to the broader category of industrial sensor interfaces -> more generally to line drivers/receivers -> and finally to wired communication ICs, which are themselves a subset of mixed-signal semiconductors used in factory-automation networks. Key differentiating features include: an integrated high-efficiency step-down DC-DC converter that generates the 5V or 3.3V logic rail directly from the 24V industrial bus, eliminating an external switching IC; reverse-voltage, short-circuit, and surge protection on all four IO pins; very low on-resistance C/Q and DO/DI drivers; selectable driver current limits to match load requirements; and low quiescent current for IEC 61131-9 sleep/wake behavior. The selectable interface (SPI or pin-strapped logic) lets the same silicon serve multiple microcontroller families. The 28-TQFN-EP package has an exposed pad that drops θJA low enough to dissipate the buck regulator's thermal load without an external heatsink at typical 24V→5V/200mA operating points. Typical applications include 24V industrial sensor heads (photoelectric, proximity, ultrasonic), IO-Link valve manifolds, IO-Link actuators, and remote I/O blocks on Profinet/EtherNet/IP fieldbus modules. The combination of surge protection and integrated DC-DC keeps the BOM small for IP67 sensor heads where PCB area is constrained and external protection networks are difficult to source. Designers should budget for the buck regulator's inductor and output capacitors per the datasheet typical application circuit, and verify that the surge protection rating meets the end-application EMC standard (IEC 61000-4-5). The exposed pad requires multiple thermal vias to the inner copper layers for adequate heat extraction at full-load buck operation. This page synthesizes distributor pricing, drop-in alternatives, IO-Link protocol design considerations, and PCB layout notes not collected in the manufacturer datasheet alone.

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MAX22530AWE+

MAX22530AWE+ - Isolated 12-bit 4-Ch SAR ADC | Analog Devices

The Analog Devices MAX22530AWE+ is a galvanically isolated, 4-channel, multiplexed, 12-bit successive-approximation-register (SAR) analog-to-digital converter (ADC) housed in a 16-pin wide-body SOIC (WSOIC) package. According to the MAX22530 datasheet, it integrates an isolated DC-DC converter that powers all field-side circuitry, allowing field-side measurements to be taken with no external power supply. The device samples at up to 22 ksps and exposes a serial (SPI-compatible) digital interface on the logic side. A SAR ADC is a successive-approximation-register analog-to-digital converter, a class of precision ADC that uses a binary-search algorithm and a precision DAC to convert an input voltage to a digital code in a fixed number of clock cycles. Isolated ADCs sit within the broader signal-chain hierarchy of data-acquisition front ends -> ADCs -> precision converters -> mixed-signal ICs -> semiconductors, where galvanic isolation adds a critical safety barrier between hazardous field voltages and the host processor. Key features include 12-bit resolution, four single-ended input channels multiplexed to one SAR core, integrated digital isolation, an integrated isolated DC-DC converter on chip, and a logic-side supply range of 1.71 V to 5.5 V. The wide-body SOIC package provides the reinforced clearance/creepage required for reinforced isolation. The MAXSafe™ architecture is designed for industrial sensors, PLC analog input modules, and any system that requires isolation between the analog front end and a low-voltage digital controller. Typical applications include isolated voltage and current sensing in motor drives, solar inverters, and industrial process-control loops; PLC analog input modules; battery-management systems; and medical equipment where patient isolation is mandatory. The internal DC-DC converter eliminates the bulky external isolated supply, shrinking the BOM. When designing with the MAX22530, pay attention to the input-channel MUX settling time and the recommended input RC anti-alias filter. Place decoupling capacitors close to both field-side and logic-side supply pins, and observe the wide-body SOIC PCB clearance rules for the rated isolation voltage.

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MAX232ACPE+

MAX232ACPE+ - RS-232 Transceiver, 5V, PDIP-16 | Maxim

The Maxim Integrated MAX232ACPE+ is a +5 V RS-232 line-driver and receiver interface IC with two transmit channels and two receive channels in a 16-pin PDIP package. It supports the MAX220–MAX249 family use case for EIA/TIA-232E and V.28/V.24 communications interfaces where ±12 V supplies are unavailable. The verified distributor listings identify the part as a 5 V-powered multichannel RS-232 driver/receiver, while the target MPN is the +5 V-listed MAX232ACPE+ variant. An RS-232 transceiver is an interface IC that translates digital logic levels between a host or controller and a RS-232 cable. A driver converts TTL or CMOS signals into RS-232-level signals, while a receiver converts transmitted RS-232 levels back into logic levels. The MAX232ACPE+ is therefore placed between a digital system and an external serial connector, providing bidirectional communication through two driver and two receiver channels. The manufacturer family description states that the MAX220–MAX249 devices are intended for EIA/TIA-232E and V.28/V.24 communications interfaces, particularly where ±12 V is not available. The +5 V-powered architecture supports systems whose logic supply is commonly 5 V. The verified data also identifies the part as a 2/2 transceiver and as a 5 V multichannel RS-232 driver/receiver. Exact electrical limits, slew rates, receiver thresholds, supply-current figures, and temperature limits are marked as DATA_NEEDED because they are not included in the supplied verified excerpts. Typical uses include RS-232 console links, industrial-control serial ports, test equipment, embedded serial adapters, and legacy peripheral connections. The MAX232ACPE+ is appropriate when the board requires a conventional through-hole RS-232 interface and a 16-pin PDIP footprint. Designers should verify the complete datasheet pinout, charge-pump capacitor requirements, logic levels, data-rate limits, and ESD requirements before production release, because those values are not present in the supplied source snippets. The key design consideration is to treat the MAX232ACPE+ as a physical-layer interface rather than a protocol converter. The application must handle framing, baud-rate configuration, parity, flow control, and connector wiring separately. External charge-pump capacitors, input/output protection, grounding, and cable routing remain important in a working RS-232 design. The MAX232ACPE+ is best selected when a 16-pin PDIP RS-232 transceiver with two drivers and two receivers is required and the existing board already matches the verified package and pin arrangement. This page combines the verified distributor identity, manufacturer-family interface description, package information, and sourced cross-reference data. It does not infer unprovided electrical specifications, lifecycle claims, pricing values, compliance status, or complete pin assignments.

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MAX232ACSE+T

MAX232ACSE+T - 5V RS-232 Transceiver, 2 Driver/2 Receiver | Maxim Integrated

The Analog Devices (Maxim Integrated) MAX232ACSE+T is a +5V-powered, multichannel RS-232 driver/receiver IC delivering 2 drivers and 2 receivers in a 16-pin narrow-body SOIC (NSOIC-16) package. It operates from a single 4.5V to 5.5V supply, integrates a charge-pump DC-DC converter that generates the ±10V RS-232 signal swings from the +5V rail, and supports data rates up to 200 kbps. The +T suffix denotes tape-and-reel packaging. What is an RS-232 transceiver? An RS-232 transceiver is a type of line driver/receiver IC that translates logic-level UART signals (0V/5V or 0V/3.3V) to the bipolar ±5V to ±15V voltage levels defined by the EIA/TIA-232E and V.28/V.24 standards, enabling reliable data transmission between a microcontroller/FPGA and legacy serial ports, modems, point-of-sale terminals, and industrial instrumentation over cables up to 15 meters. The MAX232 family belongs to the broader category hierarchy: RS-232 transceiver -> line driver/receiver -> interface IC -> integrated circuit -> semiconductor. Key features include a wide +4.5V to +5.5V single-supply range, on-board dual charge pump (no external ±12V required), 200 kbps guaranteed data rate, ±30V receiver input tolerance (HBM ESD on older MAX232 revisions), 1 µA low-power shutdown mode, and integrated ESD protection on the RS-232 pins (device-dependent). The NSOIC-16 surface-mount package provides a compact footprint suitable for industrial, embedded, and consumer designs. The architecture uses an internal oscillator and four external 0.1uF charge-pump capacitors (C1+, C1-, C2+, C2-, V+, V-) to generate the required RS-232 voltage rails from a single +5V source. Drivers invert and level-shift TTL/CMOS inputs, while receivers accept bipolar RS-232 inputs and re-emit TTL/CMOS logic levels. The MAX232A variant specifies a higher slew rate than the original MAX232, supporting the 200 kbps data rate. Typical applications include industrial PLC serial ports, point-of-sale (POS) terminals, embedded microcontroller UART bridges, legacy PC peripheral interconnects, GPS module interfaces, and battery-backed service equipment. The single +5V supply eliminates the bulky ±12V rails required by older RS-232 designs, simplifying power architecture. When designing with the MAX232ACSE+T, place the four charge-pump capacitors (typically 0.1uF ceramic) as close as possible to the C1+, C1-, C2+, C2-, V+, and V- pins to minimize ripple on the generated RS-232 rails. For applications requiring higher ESD protection or faster data rates, consider the SP3232E or MAX3232 family (3.0V to 5.5V supply). This page synthesizes distributor pricing, drop-in alternatives, application circuit recommendations, and design guidance not consolidated in the manufacturer datasheet.

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MAX232CPE

MAX232CPE - 5V RS-232 Transceiver, 2 Driver/2 Receiver, 16-PDIP

The Maxim Integrated (Analog Devices) MAX232CPE is a +5V-powered, dual-driver/dual-receiver RS-232 transceiver housed in a 16-pin PDIP (PE) through-hole package. It operates from a single 5V supply using on-board charge-pump capacitors to generate the ±10V RS-232 signal levels, eliminating the need for a ±12V power source. The device conforms to the EIA/TIA-232E and V.28/V.24 communication interface standards and supports data rates up to 120 kbps, satisfying asynchronous serial-port requirements for PCs, embedded controllers, and point-of-sale terminals. An RS-232 transceiver is a line driver/receiver IC that converts between transistor-transistor logic (TTL/CMOS) voltage levels used by microcontrollers and the higher-voltage bipolar signaling levels defined by the EIA/TIA-232 standard. As a member of the line-driver/receiver IC class within Interface ICs, the MAX232 family uses external charge-pump capacitors (typically 1 µF to 10 µF) to double and invert the 5V supply, producing the ±10V swing required by RS-232. This topology removes the legacy dependence on ±12V rails that earlier RS-232 implementations required. Key features include two RS-232 drivers with ±9V output swing (typical), two RS-232 receivers with TTL/CMOS compatible outputs, an integrated dual charge pump requiring only four external 1 µF capacitors, low supply current of 8 mA typical, and an operating temperature range of 0°C to +70°C (commercial grade). The MAX232CPE differs from the higher-speed MAX232EPE (which extends to 250 kbps) and the wide-temperature MAX232AEPE (which extends to -40°C and adds 15 kV ESD protection on the driver outputs). The MAX232 family uses a proprietary dual charge-pump architecture that converts +5V into +10V and -10V using only four external capacitors. The drivers meet the EIA/TIA-232E and V.28 specifications with minimum ±5V output swing into 3 kΩ loads, while the receivers accept ±25V inputs and present 5 kΩ input resistance to the line. The MAX232CPE ships in the 16-pin PDIP (PE) through-hole package with pinout identical to the MAX232EPE, MAX232AEPE, SP232ACP-L, and other industry-standard drop-in equivalents. Typical applications include microcontroller UART-to-RS-232 level translation, industrial point-of-sale (POS) terminals, networking equipment console ports, embedded debug and programming interfaces, and legacy serial peripheral interconnects (modems, instrumentation, barcode scanners). The wide input tolerance of the receivers (±25V) tolerates mis-wiring and noisy RS-232 environments. When designing with this device, place the four charge-pump capacitors as close as possible to the IC pins and use 1 µF (or larger) ceramic or tantalum types to maintain ±10V output levels. Verify that the data rate does not exceed 120 kbps, as the MAX232CPE is not designed for higher-speed operation; for that, select the MAX232EPE (250 kbps) or MAX232AEPE (200 kbps) variants. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical PCB layout guidance not collated in the original manufacturer datasheet.

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MAX232CPE-C70055

MAX232CPE-C70055 - RS-232 Transceiver | Analog Devices

Analog Devices MAX232CPE-C70055 is a dual RS-232 line-driver and receiver transceiver integrated circuit in a 16-pin PDIP package. The device provides two transmit channels and two receive channels for converting TTL/CMOS logic levels to and from EIA/TIA-232E-compatible signal levels. Its primary role is to bridge a digital controller, computer, or microcontroller UART with a physical RS-232 port, allowing equipment to communicate over a wired serial interface without a separate level-conversion circuit. The MAX232 family belongs to the interface-IC hierarchy: RS-232 transceiver -> line driver and receiver -> logic interface IC -> semiconductor. A MAX232-type device uses an on-chip charge-pump voltage converter to generate the positive and negative voltages required by RS-232 drivers. This allows a circuit powered from a single positive supply to communicate with equipment using RS-232 signal levels. The device is intended for applications where traditional RS-232 communication is required but higher-speed differential or differential alternatives are not appropriate. The C70055 ordering suffix identifies a specific manufacturer-specified configuration associated with the MAX232CPE family. The verified product information identifies the device as a dual-driver, dual-receiver RS-232 interface IC in a 16-pin PDIP package. The standard MAX232CPE family is described as an EIA/TIA-232E and V.28/V.24-compatible interface for systems where positive and negative supply rails are unavailable. Key engineering considerations include the external charge-pump capacitor values, supply bypass, unused-line handling, and the difference between logic-level and RS-232-level signals. Typical uses include industrial control equipment, data acquisition systems, service interfaces, test fixtures, serial adapters, and embedded equipment that needs a conventional RS-232 port. The MAX232 is most appropriate when the system uses a UART with TTL logic and requires a legacy RS-232 connector. It is not the right choice when the design needs galvanic isolation, very high data rates, long unrepeated cable distances, or modern USB-to-serial conversion. A practical design should follow the manufacturer's application circuit, including the specified charge-pump capacitors, local supply decoupling, and controlled handling of unused receiver and driver outputs. PCB placement should keep the charge-pump loop compact and connect the connector-side return path carefully to reduce noise pickup. For a new design, verify the exact C70055 ordering code, electrical limits, and package drawings against the current Analog Devices or Maxim Integrated documentation before releasing the PCB.

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MAX232CPE.C70062

MAX232CPE.C70062 5V RS-232 Transceiver | Analog Devices

Analog Devices MAX232CPE.C70062 is a 5 V RS-232 line-driver and receiver transceiver with two driver and two receiver channels, packaged in a 16-pin PDIP. It is designed for EIA/TIA-232E and V.28/V.24 communications interfaces where positive and negative supply voltages around ±12 V are not available. The MAX232 family uses onboard charge-pump circuitry to generate the negative voltage required by the RS-232 receiver threshold. An RS-232 transceiver is an interface IC that translates logic-level signals between a computer or controller and a cable-based serial link. The MAX220–MAX249 family belongs to the RS-232 interface hierarchy, which includes line drivers, line receivers, transceivers, and interface controller devices. This distinction matters because an RS-232 transmitter converts single-ended digital logic into a bipolar differential signal, while its receiver restores the logic-level signal received from the cable. The MAX232CPE.C70062 provides a 16-pin PDIP package, a nominal 5 V supply, and two transmit plus two receive channels. Its principal system benefit is the elimination of separate negative power rails at the transceiver. The integrated charge-pump circuit generates the negative bias needed to interpret RS-232 receive levels, allowing the device to operate from a single positive supply while maintaining compatibility with standard RS-232 equipment. Typical uses include industrial control interfaces, serial service ports, instrumentation, embedded equipment, and legacy peripheral connections. Designers should use the manufacturer pin-description table when assigning connector signals and should account for the non-logic RS-232 voltage levels at the line pins. The communications path also requires suitable board layout, cable selection, grounding, and protection practices to achieve reliable operation in industrial environments. The MAX232CPE.C70062 is the MAX232CPE part number with the C70062 customer ordering suffix. Verify the suffix, package marking, shipping configuration, and documentation revision before releasing a production order. Because this suffix identifies a specific ordering configuration, engineers should treat it as a distinct line item rather than silently substituting the base MAX232CPE designation. This page consolidates interface details, package information, application guidance, and verified drop-in alternatives for MAX232CPE.C70062. It also provides selection criteria for comparing same-footprint transceivers without confusing a functional alternative with a true pin-to-pin replacement. Review the electrical limits and pin descriptions in the manufacturer datasheet before finalizing a circuit. For a new design, confirm availability, lifecycle expectations, and the exact ordering code through the Request a Quote form on this page. For an existing PCB, validate the pinout, supply voltage, channel count, and RS-232 electrical requirements before approving any alternative.

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MAX232CSE+

MAX232CSE+ - Dual RS-232 Transceiver, 16-SOIC | Analog Devices

Analog Devices MAX232CSE+ is a dual RS-232 line-driver and receiver IC with one transmitter and one receiver per channel, a 4.5 V to 5.5 V supply range, and a 16-pin SOIC package. It is designed to add bipolar RS-232 signal conditioning to systems whose logic-side supply is 5 V and whose external interface does not provide the positive and negative voltages required by the EIA/TIA-232E standard. An RS-232 transceiver is an interface IC that converts low-voltage logic-level signals into differential, bipolar line signals and converts received line signals back into logic-compatible levels. The MAX232 belongs to the RS-232 interface transceiver category, combining line drivers, line receivers, and an on-chip charge-pump voltage converter in one package. This integration allows a 5 V circuit to communicate with legacy serial equipment without a separate negative-power supply. The device provides two driver channels and two receiver channels, supporting full-duplex serial communication when both directions are used. Its 4.5 V to 5.5 V operating supply supports conventional 5 V digital systems, while the internal charge pump generates the positive and negative voltages required to drive RS-232 loads. The wide-logic compatibility and integrated level translation make the MAX232 suitable for UART-based links, control equipment, and legacy peripheral connections. The MAX220 through MAX249 family is specified for EIA/TIA-232E and V.28/V.24 communications interfaces. This is particularly important where the equipment must interoperate with older RS-232 ports rather than only with modern low-voltage serial standards. The C suffix identifies the capacitor and operating-temperature configuration, while the E suffix denotes the narrow SOIC package and the trailing plus identifies the lead-free ordering code. Typical uses include industrial controller-to-console links, configuration ports on test equipment, service interfaces for printers and scanners, and communication links between 5 V microcontrollers and RS-232 equipment. The two receiver channels can also monitor two incoming lines when only one transmit channel is needed. System designers should account for the charge-pump capacitors, grounding, logic levels, and the slower edge rates associated with the selected RS-232 implementation. Place the charge-pump capacitors and interface-decoupling capacitor close to their associated pins and route driver outputs and receiver inputs away from sensitive clock, reset, and analog signals. Keep the ground and supply return paths short because the receiver must distinguish small logic-side transitions from bipolar RS-232 levels. Confirm signal polarity, baud rate, and flow-control requirements at the software interface before replacing an existing MAX232 implementation. This product page combines the confirmed electrical identity, package information, interface standards, and drop-in alternatives with application-oriented design guidance. It helps engineers identify the correct RS-232 transceiver, verify footprint compatibility, and plan charge-pump capacitance and PCB layout before committing a MAX232CSE+ to a new PCB.

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製品 (39,000+)

MAX211CDB - 120 kbit/s 4/5 RS-232 Transceiver | Texas Instruments

MAX211CDBR - 120 kbit/s 4/5 RS-232 Transceiver | Texas Instruments (Tape & Reel)

MAX211CDW - 5V 4/5 RS-232 Transceiver | Texas Instruments

MAX211CDWR - 5V 4/5 RS-232 Transceiver | Texas Instruments (Tape & Reel)

MAX211CWI+ - 4/5 RS-232 Transceiver | Analog Devices

MAX211EAI+ - 120kbps 4/5 RS-232 Transceiver | Analog Devices

MAX211EEAI+ 4/5 RS-232 Transceiver | Analog Devices

MAX211EWI+ - 4/5 RS-232 Transceiver, 5V, 120kbps | ADI

MAX211IDB - 5V RS-232 Transceiver, 120kbps, ±15kV ESD | TI

MAX211IDBR - 5V RS-232 Transceiver, 120kbps, ±15kV ESD | TI (Tape & Reel)

MAX211IDW - 5V 120kbps RS-232 Transceiver | Texas Instruments

MAX211IDWR - 5V 120kbps RS-232 Transceiver | Texas Instruments (Tape & Reel)

MAX213ECAI+ - 5V RS-232 Transceiver, 15kV ESD, SSOP-28 | Maxim

MAX22025AWA+ - 3.5kVRMS Isolated RS-485 Transceiver | ADI

MAX222CN - 5V Dual RS-232 Transceiver | Texas Instruments

MAX222IN - 5V Dual RS-232 Interface | Texas Instruments

MAX22513ATI+ - Dual IO-Link Transceiver, 36V, TQFN-28 | ADI

MAX22530AWE+ - Isolated 12-bit 4-Ch SAR ADC | Analog Devices

MAX232ACPE+ - RS-232 Transceiver, 5V, PDIP-16 | Maxim

MAX232ACSE+T - 5V RS-232 Transceiver, 2 Driver/2 Receiver | Maxim Integrated

MAX232CPE - 5V RS-232 Transceiver, 2 Driver/2 Receiver, 16-PDIP

MAX232CPE-C70055 - RS-232 Transceiver | Analog Devices

MAX232CPE.C70062 5V RS-232 Transceiver | Analog Devices

MAX232CSE+ - Dual RS-232 Transceiver, 16-SOIC | Analog Devices