MAX3221ECDBRG4 - 3V-5.5V Single RS-232 Transceiver | TI
MPN: MAX3221ECDBRG4 ✓ सक्रियMAX3221ECDBRG4 अवलोकन
An RS-232 transceiver is an interface IC that converts logic-level signals into RS-232-compatible voltage levels and restores incoming RS-232 signals to logic-compatible levels. It belongs to the interface IC hierarchy, where it connects digital logic or microcontrollers to legacy peripheral ports. The MAX3221E family also uses on-chip charge-pump circuitry to generate the bipolar voltage levels required by RS-232 without a separate negative supply.
Key features include operation from 3 V to 5.5 V, one driver and one receiver, ±15 kV human-body-model ESD protection, ±8 kV IEC 61000-4-2 contact discharge protection, and ±15 kV air-gap discharge protection. The device uses four external 0.1 µF charge-pump capacitors. Its 16-SSOP surface-mount package supports compact industrial-control, instrumentation, and embedded equipment layouts.
The MAX3221E architecture provides the electrical interface required by asynchronous serial systems. A single external capacitor at each charge-pump node supports the internal voltage conversion, while the driver presents the bipolar voltage levels expected by an RS-232 port and the receiver converts those levels back to digital logic. This integration simplifies PCB area compared with discrete level-shifting and charge-pump networks.
Typical applications include debug-console connections, industrial serial adapters, point-of-sale equipment, test and measurement instruments, and embedded systems that retain an RS-232 port. For new designs, an RS-232 transceiver is most useful when an existing host or peripheral expects the physical RS-232 interface rather than USB, RS-485, or a proprietary differential link.
Place the four 0.1 µF charge-pump capacitors close to their designated pins and route the driver output and receiver input traces away from sensitive analog or high-speed digital nodes. Confirm the board ground and cable shield arrangement before field deployment because connector-level ESD protection alone does not eliminate conducted noise entering through the cable.
This product record combines the MAX3221ECDBRG4 electrical characteristics, package information, interface ratings, drop-in alternatives, comparison parameters, and practical layout guidance in one engineering-focused reference. It supports component selection, PCB footprint review, and RS-232 interface design without relying on a generic interface-IC overview.
के लिए ड्रॉप-इन विकल्प MAX3221ECDBRG4 — समान पैकेज, पिन-टू-पिन संगत। PCB रीवर्क आवश्यक करने वाले भिन्न-पैकेज पार्ट्स शामिल नहीं हैं।
इस सीरीज़ के वेरिएंट
समान श्रृंखला के मॉडल जो ड्रॉप-इन संगत हैं MAX3221ECDBRG4 (समान फॉर्म फैक्टर और फुटप्रिंट) — इसमें भिन्न Number of Drivers, Number of Receivers, Package, Product Type.
MAX3221IDBR
✅ ड्रॉप-इनकीमत के लिए संपर्क करें
डेटाशीट देखें →MAX3221ECDBR
✅ ड्रॉप-इन📋 संदर्भ विकल्प (कैटलॉग में नहीं)
MAX3221ECDBRG4 विशेषताएं
| Product Type | Single-channel RS-232 line driver and receiver |
| Number of Drivers | 1 driver |
| Number of Receivers | 1 receiver |
| Supply Voltage Range | 3 V to 5.5 V |
| Interface Standard | RS-232; TIA/EIA-232-F compliant |
| Human-Body-Model ESD Protection | ±15 kV |
| IEC 61000-4-2 Contact Discharge | ±8 kV |
| IEC 61000-4-2 Air-Gap Discharge | ±15 kV |
| External Charge-Pump Capacitors | 4 × 0.1 µF |
| पैकेज | 16-SSOP, 5.30 mm width |
| माउंटिंग प्रकार | Surface mount |
| Packaging | Digi-Reel |
| ऑपरेटिंग तापमान | 0 °C to +70 °C |
| Lead-Free Status | Lead-free |
| Green Product Status | Green product |
MAX3221ECDBRG4 16-ssop, 5.30 mm width पिन कॉन्फ़िगरेशन गाइड
MAX3221ECDBRG4 (16-ssop, 5.30 mm width पैकेज) के लिए पिन कॉन्फ़िगरेशन। पिन नंबरिंग, फ़ंक्शन और कनेक्शन आरेख निर्माता डेटाशीट में परिभाषित हैं। सटीक फुटप्रिंट और सोल्डरिंग दिशानिर्देशों के लिए इसे देखें।
इसके लिए कोई विस्तृत pinout data उपलब्ध नहीं: MAX3221ECDBRG4.
देखें डेटाशीट पूर्ण पिन कॉन्फ़िगरेशन के लिए।
सामान्य अनुप्रयोग
MAX3221ECDBRG4 के लिए उपयुक्त है 6 अनुप्रयोगs: Embedded Debug Console, Industrial Serial Adapter, Point-of-Sale Terminal, Test and Measurement Instrument, Instrumentation Data Link, Legacy Equipment Upgrade.
Embedded Debug Console
The MAX3221ECDBRG4 fits an embedded debug console because it combines one RS-232 driver and one receiver in a compact 16-SSOP package while operating from 3 V to 5.5 V. Connect its logic-side signals to the host UART and its line-side signals to the serial connector through the appropriate protection network. The four 0.1 µF charge-pump capacitors should be placed close to their associated pins. This arrangement preserves a conventional service interface without requiring a negative supply, although the final USB-to-RS-232 adapter used for modern computers may need an additional interface.
अनुशंसित
Industrial Serial Adapter
The MAX3221ECDBRG4 is appropriate for a compact industrial serial adapter requiring one legacy RS-232 channel and a 3.3 V or 5 V supply. Its ±15 kV human-body-model, ±8 kV contact-discharge, and ±15 kV air-gap ratings help the line interface withstand cable-borne electrostatic events. Place the four 0.1 µF charge-pump capacitors close to the IC and keep the receive path away from switching nodes. The 0 °C to +70 °C range is suitable for indoor commercial-temperature equipment, but it may not cover wider industrial environments.
अनुशंसित
Point-of-Sale Terminal
A point-of-sale terminal can use the MAX3221ECDBRG4 to connect a legacy receipt printer, scanner, or customer-display controller through an RS-232 port. The single-driver, single-receiver arrangement supports one full-duplex serial link and avoids the area cost of a multi-channel transceiver. Operating from 3 V to 5.5 V supports common embedded logic rails, while the four external 0.1 µF capacitors implement the charge-pump function. Designers should confirm the host UART voltage, connector gender, cable length, and whether the peripheral uses hardware handshaking.
अनुशंसित
Test and Measurement Instrument
The MAX3221ECDBRG4 can provide the RS-232 control path in test and measurement instruments that retain a serial service or command port. Its 16-SSOP footprint leaves more board area than a multi-channel RS-232 transceiver, while the single channel is sufficient for one command link. The ±15 kV HBM and IEC 61000-4-2 ratings are useful when users connect external cables, but the instrument enclosure, cable shield, and ground-return design remain important parts of the protection strategy.
अनुशंसित
Instrumentation Data Link
The MAX3221ECDBRG4 supports a point-to-point RS-232 data link between a controller and an older laboratory instrument. One transmitter can send commands while the receiver handles responses, providing a compact full-duplex connection without a negative power rail. Keep the driver and receiver routes separated from precision analog circuitry and observe the datasheet’s four-capacitor charge-pump layout. Before deployment, verify the instrument’s logic thresholds, baud-rate requirement, and whether RS-232 control lines are required beyond the two primary data paths.
अनुशंसित
Legacy Equipment Upgrade
The MAX3221ECDBRG4 is useful when modernizing equipment that retains an RS-232 service connector but needs a compact, low-voltage interface stage. Its 3 V to 5.5 V operation can simplify integration with a 3.3 V controller, and the integrated charge-pump circuitry eliminates the need for a negative supply rail. The 16-SSOP package is larger than a minimal SOT device, so confirm PCB area before layout. A USB-to-RS-232 conversion path may still be required if the modernization project replaces the legacy host port.
अनुशंसित
अनुशंसित उत्पादों का सारांश
के लिए इंजीनियरिंग संदर्भ डेटा MAX3221ECDBRG4 — तुलना, डिज़ाइन मार्गदर्शन और अनुपालन जानकारी।
चयन गाइड
विकल्पों के साथ तुलना
| पैरामीटर | यह उत्पाद | MAX3221IDBR | MAX3221ECDBR |
|---|---|---|---|
| Package | 16-SSOP | 16-SSOP | 16-SSOP |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Device Type | Single-channel RS-232 transceiver | Single-channel RS-232 transceiver | Single-channel RS-232 transceiver |
| Number of Drivers / Receivers | 1 / 1 | 1 / 1 | 1 / 1 |
| Supply Voltage | 3 V to 5.5 V | 3 V to 5.5 V | 3 V to 5.5 V |
| ESD Protection | ±15 kV HBM; ±8 kV contact; ±15 kV air-gap | ±15 kV ESD protection | ±15 kV ESD protection |
| Interface Compliance | TIA/EIA-232-F | TIA/EIA-232-F | TIA/EIA-232-F |
| Mounting Type | Surface mount | Surface mount | Surface mount |
मुख्य विशेषताएँ
- Single-channel integration limits board area versus multi-channel transceivers (बनामMC3486NSR)
- ESD ratings are specified across three test methods (बनामMAX3221IDBR)
- Operates directly from common low-voltage logic rails (बनामMAX3221ECDBR)
डिज़ाइन नोट्स
Place all four 0.1 µF charge-pump capacitors adjacent to their designated MAX3221ECDBRG4 pins, with the shortest possible ground and capacitor connections. Keep the capacitor loops compact because the charge-pump nodes switch at high frequency and larger loops can radiate noise. Follow the manufacturer’s typical layout artwork for component spacing and ground-return geometry rather than treating the capacitors as generic bulk decoupling.
Route the RS-232 driver-output and receiver-input nets directly toward the connector while separating them from clocks, switching regulators, and sensitive analog inputs. The driver can transition between positive and negative RS-232 levels, so long parallel runs with digital signals may increase coupling. A solid ground plane beneath the interface section is preferable to a fragmented return path, while high-current return paths should not pass beneath the line-side circuitry.
Do not assume the IC’s ±15 kV ESD rating eliminates the need for a correctly designed cable and connector path. Confirm that the connector shield connects to the intended chassis or earth reference, specify a suitable cable, and evaluate whether additional protection is required for the full system. Also verify the 0 °C to +70 °C commercial operating range before using the device in extended-temperature equipment.
अनुपालन जानकारी
The component is described as a lead-free green product. RoHS, REACH, halogen-free, and conflict-minerals status require confirmation from the manufacturer’s current product documentation.
