MaxLinear

SP3232EY-L - 2/2 RS-232 Transceiver | MaxLinear

부품 번호: SP3232EY-L ✗ 단종
재고 있음 영업일 기준 1~3일 내 발송
+3.0 V to +5.5 V Vdss 1 μA with receivers active Id 16-TSSOP Package
문의하기 가격 문의
MOQ: 1 |
가격 업데이트: 2026-10-22
볼륨 가격
수량 단가 합계
1 $0.273 $0.27
10 $0 $0.00
100 $0 $0.00
500 $0 $0.00
1,000 $0 $0.00
ℹ️ 모든 가격은 USD 기준입니다

SP3232EY-L 개요

The MaxLinear SP3232EY-L is a true RS-232 transceiver IC with two drivers and two receivers, a 3.0 V to 5.5 V operating supply range, and data-rate capability up to 120 kbps in the supplied manufacturer-family data. The verified distributor result identifies the device as a 16-TSSOP RS-232 interface component. It is designed for portable and hand-held equipment where a compact, low-voltage RS-232 interface is required.

An RS-232 transceiver is an interface IC that combines line drivers and receivers with the electrical characteristics required by RS-232 communication links. The driver converts low-voltage logic signals into RS-232-compatible levels, while the receiver converts incoming RS-232 signals back into logic levels. In the broader electronics hierarchy, the SP3232EY-L belongs to interface ICs, communication interfaces, and RS-232 transceivers.

The verified data identifies the SP3222E/SP3232E family as using a high-efficiency charge-pump power supply that requires only 0.1 μF capacitors in 3.3 V operation. It also specifies true +3.0 V to +5.5 V RS-232 operation, minimum 120 kbps data-rate capability under full load, and 1 μA low-power shutdown with receivers active. These features make the device relevant to portable computers, embedded serial links, instrumentation, and industrial control equipment.

The SP3232EY-L combines transmit and receive functions in one package, reducing the number of discrete interface ICs required for a dual-channel RS-232 port. Its 16-TSSOP package supports compact surface-mount layouts, while the specified 3.0 V to 5.5 V supply range allows operation from both 3.3 V and 5 V system rails. The device is appropriate where RS-232 compliance and low-voltage integration are more important than the higher data rates of newer serial standards.

Designers should pay attention to the external charge-pump capacitors, supply decoupling, and the distinction between logic-side and RS-232-side signals. The 0.1 μF capacitor requirement applies to 3.3 V operation according to the supplied family description; capacitor voltage rating and layout should follow the manufacturer guidance. Because the verified results do not provide a complete public pinout or detailed absolute-maximum table for this exact suffix, pin-level and stress-limit decisions require confirmation from the exact manufacturer datasheet before release to production.

This product page combines the supplied distributor and manufacturer-family data with application guidance, design cautions, and clearly marked information gaps. It is intended to support initial component selection and board planning rather than replace the exact datasheet, qualification process, or application-specific validation.

드롭인 대체품: SP3232EY-L — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: SP3232EY-L (동일 폼 팩터 및 풋프린트) — 차이점: Package, Product Type, Data Rate, ESD Protection, Low-Power Shutdown Current.

Texas Instruments
Package: 16-pin SOIC
Product Type: Dual RS-232 line driver and receiver
ESD Protection: ±15 kV pin-to-pin on serial-port connection pins, including ground
비교 대상: SP3232EY-L →
Texas Instruments
Package: 16-pin SOIC
Product Type: Multichannel RS-232 line driver/receiver
ESD Protection: ±15 kV
비교 대상: SP3232EY-L →
MaxLinear
Package: 20-TSSOP (Y), 4.40 mm body width
Data Rate: 250 kbps (under load)
Low-Power Shutdown Current: 1 µA (receivers active, SP3222EB)

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

SP3232EEY-L

✅ 드롭인
📦 16-TSSOP
Related SP3232E listing; verified family data identifies the same 2/2 RS-232 transceiver configuration, but exact suffix interchangeability is not established

📋 참조 대체품 (카탈로그에 없음)

SP3222EBEY-L/TR

✅ 드롭인
MaxLinear
📦 16-TSSOP
RS-232 Transceiver (2 drivers / 2 receivers) · RS-232 (EIA/TIA-232-F compliant) · 3.0 V to 5.5 V · 250 kbps (under load) · 2 · 2 · 1 µA (receivers active, SP3222EB)

✓ 재고 있음

$0.92 / 개

데이터시트 보기 →

MAX3232CD

✅ 드롭인 ⚠️ 사양 미검증
Texas Instruments
📦 [DATA_NEEDED: package]
Multichannel RS-232 line driver/receiver · 3 V to 5.5 V · 2 · 2 · 250 kbit/s · Accepts 5 V logic · 300 µA · ±15 kV

✓ 재고 있음

$0.7831 / 개

데이터시트 보기 →

MAX232CD

✅ 드롭인 ⚠️ 사양 미검증
📦 [DATA_NEEDED: package]
RS-232 transceiver alternative; exact package and pin compatibility are not verified in the supplied data

📋 참조 대체품 (카탈로그에 없음)

MAX202CD

✅ 드롭인 ⚠️ 사양 미검증
Texas Instruments
📦 [DATA_NEEDED: package]
Dual RS-232 line driver and receiver · 4.5 V to 5.5 V · 2 · 2 · ±15 kV pin-to-pin on serial-port connection pins, including ground · TIA/EIA-232-F · Electrical interface between asynchronous communication controller and serial-port connector · 16-pin SOIC

✓ 재고 있음

$1.1781 / 개

데이터시트 보기 →

SP3232EY-L 사양

Product Type RS-232 transceiver
Transmitter Configuration 2 transmitters
Receiver Configuration 2 receivers
동작 공급 전압 +3.0 V to +5.5 V
데이터 속도 120 kbps minimum under full load
Low-Power Shutdown Current 1 μA with receivers active
Charge-Pump Capacitor Requirement 0.1 μF in 3.3 V operation
RS-232 Standard True EIA/TIA-232-F operation
패키지 16-TSSOP
실장 유형 Surface mount
Channel Count 2/2 driver-receiver channels
공급 전류 1 mA
RoHS unknown
REACH unknown

SP3232EY-L 16-tssop 핀 구성 가이드

SP3232EY-L(16-tssop 패키지)의 핀 구성입니다. 핀 번호, 기능, 연결 다이어그램은 제조사 데이터시트에 정의되어 있습니다. 정확한 풋프린트와 솔더링 지침은 해당 문서를 참조하십시오.

SP3232EY-L의 16-tssop 패키지 핀아웃 다이어그램

다음에 대한 상세 핀아웃 데이터 없음: SP3232EY-L.

다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.

일반적인 애플리케이션

SP3232EY-L 적합 용도: 7 애플리케이션s: Portable RS-232 Equipment, Embedded Serial Port, Legacy Printer Interface, Industrial Control Communication, Test and Measurement Equipment, Serial Adapter and Dongle, Data Acquisition and Service Port.

📱

Portable RS-232 Equipment

The SP3232EY-L fits portable and hand-held equipment because the supplied MaxLinear family description identifies a +3.0 V to +5.5 V operating range and a high-efficiency charge-pump supply requiring only 0.1 μF capacitors in 3.3 V operation. Its two transmitters and two receivers provide a compact multi-channel RS-232 interface without requiring separate driver and receiver packages. The device is useful when a modern low-voltage controller must connect to a legacy RS-232 peripheral, printer, service port, or configuration interface. Designers should place the charge-pump capacitors and supply bypass close to the device, while adding connector-side protection and grounding appropriate to the cable environment.

⚡

Embedded Serial Port

The SP3232EY-L is appropriate for an embedded control board that needs two RS-232 channels while operating from a 3.3 V or 5 V rail. The verified data specifies true EIA/TIA-232-F operation and at least 120 kbps data rate under full load, which is suitable for conventional serial-console, instrumentation, and legacy equipment links. Integrating both directions in a 16-TSSOP package simplifies routing compared with separate line-driver and receiver ICs. The system designer must still account for logic-level translation, cable length, grounding, ESD protection, and the external charge-pump capacitors specified for the chosen supply condition.

🖨️

Legacy Printer Interface

The SP3232EY-L can support a legacy printer or peripheral interface when the host logic uses low-voltage digital signaling and the target device expects true RS-232 levels. Two transmit and two receive channels allow status and control signals to share the same physical interface, while the 120 kbps minimum data-rate specification provides ample margin for many printer and service-port protocols. The interface should include the required charge-pump capacitors and supply decoupling, and the board should provide robust connector protection because an external cable exposes the interface to ESD and surge events. Validate the logic polarity and handshake timing in the connected equipment.

🏭

Industrial Control Communication

The SP3232EY-L is suitable for industrial control and diagnostic equipment that retains an RS-232 management, programming, or service port. Its +3.0 V to +5.5 V supply range permits integration with both 3.3 V and 5 V control electronics, and the compact 16-TSSOP package supports space-constrained boards. The verified 120 kbps minimum data rate is appropriate for many configuration and supervisory protocols. For industrial deployment, engineers should add connector-side ESD protection, define a suitable common ground strategy, and verify the exact operating-temperature and isolation requirements against the current manufacturer datasheet before qualification.

🔧

Test and Measurement Equipment

The SP3232EY-L can provide a legacy RS-232 control port on test and measurement instruments that need to communicate with older computers, fixtures, or service software. The two-channel transceiver reduces the number of interface components needed when the instrument has both command and response signals. The verified 1 μA low-power shutdown with receivers active may help reduce consumption in portable test products, although the complete mode-current behavior must be checked in the exact datasheet. Place bypass and charge-pump capacitors close to the IC, provide controlled return paths, and add protection at any user-accessible connector.

🌐

Serial Adapter and Dongle

The SP3232EY-L is well suited to compact serial adapters and dongles that convert a low-voltage host interface to RS-232. Its 16-TSSOP package and two transmitters plus two receivers allow several control signals to be integrated in a small board, while the 3.0 V to 5.5 V range supports common embedded hosts. The charge-pump supply is particularly relevant to compact products because the supplied family description specifies only 0.1 μF capacitors in 3.3 V operation. A production design should still include ESD protection, a defined ground reference, tested cable compatibility, and a verified shutdown control strategy.

📊

Data Acquisition and Service Port

The SP3232EY-L can support service and configuration ports on data-acquisition equipment, where a stable legacy RS-232 connection may coexist with modern low-voltage control logic. The verified 120 kbps minimum rate is suitable for many command, diagnostic, and firmware-service channels, while the two receive channels can support status feedback. The device should be placed close to its bypass and charge-pump capacitors, with careful separation from sensitive analog or high-speed circuitry. Check the exact suffix's pinout, absolute maximum ratings, and operating-temperature limits because those details are not present in the supplied search snippets.

What is the operating voltage of SP3232EY-L?
The SP3232EY-L operates from +3.0 V to +5.5 V according to the supplied MaxLinear family description. This range supports both 3.3 V and 5 V system rails. The same source identifies true EIA/TIA-232-F operation and a high-efficiency charge-pump supply. The verified distributor result also describes the device as a true +3.0 V to +5.5 V RS-232 transceiver. Confirm the exact suffix datasheet before applying absolute-maximum or layout limits.
What are the key specifications of SP3232EY-L that engineers should know?
The SP3232EY-L is a two-driver, two-receiver RS-232 transceiver in a 16-TSSOP package. The supplied MaxLinear family data specifies true EIA/TIA-232-F operation, a +3.0 V to +5.5 V supply range, at least 120 kbps data rate under full load, and 1 μA shutdown current with receivers active. Its charge-pump supply requires only 0.1 μF capacitors in 3.3 V operation. These specifications make it suitable for compact low-voltage serial interfaces.
Is SP3232EY-L suitable for a 3.3 V embedded system?
Yes, the SP3232EY-L is suitable for a 3.3 V embedded system based on the supplied family description, which states a +3.0 V to +5.5 V operating range and 0.1 μF charge-pump capacitors in 3.3 V operation. The device can provide two RS-232 transmit channels and two receive channels in one 16-TSSOP package. Verify capacitor placement, supply decoupling, and signal-level compatibility against the exact manufacturer datasheet.
Where can I download the SP3232EY-L datasheet PDF?
The supplied search results identify a MaxLinear product page and a PDF copy for the SP3232EY-L/SP3232EEY-L family. The MaxLinear page is https://www.maxlinear.com/SP3232EEY-L, while the supplied PDF result is https://www.lcsc.com/datasheet/C3212381.pdf. Because the verified results do not expose the exact document number or revision, use the current manufacturer datasheet as the controlling document for pinout and ratings.
Where can I find the SP3232EY-L pinout?
The verified data confirms a 16-TSSOP package but does not provide the complete pin numbering for the exact SP3232EY-L suffix. Use the current MaxLinear or authorized distributor datasheet to confirm every pin before routing the PCB. The supplied family description identifies the charge-pump function, so capacitor pins and RS-232 signal pins should be checked directly against that document. This page intentionally does not invent pin names or numbering.
What can replace the SP3232EY-L?
The verified cross-reference results do not identify a complete, manufacturer-confirmed set of drop-in replacements for SP3232EY-L. A valid replacement must use the same 16-TSSOP footprint, provide compatible pin functions, support the required +3.0 V to +5.5 V supply, and meet the required RS-232 data rate. Do not substitute a similar RS-232 part solely by family name; verify the exact pinout and electrical ratings first.
Is SP3232EY-L the same as SP3232EEY-L?
The supplied search results treat SP3232EY-L and SP3232EEY-L as related listing variants, with the latter appearing on MaxLinear and distributor pages for a 16-TSSOP RS-232 transceiver. The results do not establish that the two strings are interchangeable in every orderable configuration. Confirm the manufacturer ordering table, package suffix, tape-and-reel code, and exact pinout before treating them as identical.
How fast is the SP3232EY-L RS-232 transceiver?
The supplied specifications state a minimum 120 kbps data rate under full load. This is the relevant verified figure for initial interface selection. Actual system throughput also depends on cable length, baud-rate tolerance, signal integrity, grounding, and the connected equipment. The SP3232EY-L is therefore positioned for legacy RS-232 links rather than high-speed differential or serial interfaces.
Does the SP3232EY-L support low-power shutdown?
The supplied specification data identifies 1 μA low-power shutdown with receivers active. This feature can reduce current consumption in portable or hand-held equipment when the interface is not transmitting. The verified data does not specify the complete control-pin truth table or operating-state current for every mode, so consult the exact datasheet before designing power-management sequencing.
What applications use the SP3232EY-L?
The SP3232EY-L is suited to portable and hand-held equipment, embedded RS-232 ports, serial adapters, test equipment, and industrial control interfaces. Its 2/2 driver-receiver configuration supports two channels in one package, while the +3.0 V to +5.5 V range accommodates common low-voltage logic rails. The verified MaxLinear family page specifically identifies portable and hand-held applications.
Where to buy SP3232EY-L online?
The verified results list DigiKey Marketplace, DigiKey, Mouser, LCSC, Octopart, and other distributors or aggregators for SP3232EY-L or the related SP3232EEY-L listing. The Rochester Electronics search result states that SP3232EY-L was in stock with a starting unit price of $0.2730, but prices and availability change. Check the exact suffix, package, quantity, and authorized-source status before ordering.
What is the price of SP3232EY-L?
The supplied Rochester Electronics result states that unit pricing starts at $0.2730 with volume discounts available at 10, 100, 500, and 1,000 units. The verified data does not provide the numeric prices for those higher quantity tiers, so this page records only the supplied one-unit reference price of $0.273. Treat the commercial price as a dated market observation rather than a guaranteed quotation.
What is the lead time for SP3232EY-L?
The supplied search results do not provide a verified manufacturer lead time for SP3232EY-L. The Rochester Electronics listing reports stock at the time of retrieval, while other distributor pages expose ordering and stock controls that can change. Request a current quotation and delivery estimate from the selected authorized distributor. Do not infer production lead time from the existence of a distributor page.
Is SP3232EY-L in stock?
The supplied Rochester Electronics result states that SP3232EY-L was in stock and reported 4.359 units available at retrieval time. That quantity is highly time-sensitive and may not represent current inventory. Use the linked distributor listing for a live stock check. The supplied evidence does not establish that XAIPART itself stocks the component.
What is the difference between RS-232 and other serial interfaces in SP3232EY-L designs?
RS-232 uses single-ended, bipolar signaling and is intended for point-to-point serial links, whereas many newer interfaces use differential signaling and lower logic voltages. The SP3232EY-L integrates the drivers and receivers needed for true RS-232 operation, while the surrounding MCU still uses ordinary logic levels. Cable length, grounding, protection, and baud rate remain system-level considerations.
What should be checked before using SP3232EY-L in a new PCB?
Check the exact 16-TSSOP pinout, charge-pump capacitor connections and values, supply decoupling, RS-232 connector protection, and the required logic-side levels. The supplied family description confirms 0.1 μF capacitors for 3.3 V operation, but it does not provide the complete pin table or absolute-maximum ratings. Use the current manufacturer datasheet for those release-critical details and validate the assembled interface with the intended cable and equipment.

엔지니어링 참조 데이터: SP3232EY-L — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose the SP3232EY-L when the design needs a compact, two-driver, two-receiver true RS-232 interface operating from a 3.3 V or 5 V rail. Its verified 120 kbps minimum rate and 0.1 μF charge-pump capacitor requirement in 3.3 V operation are useful for portable equipment, embedded controllers, legacy printers, service ports, and data-acquisition equipment. The related SP3232EEY-L listing may be relevant when checking an ordering variant, but the exact suffix must be confirmed. Maxim alternatives such as MAX3232CD or MAX232CD may fit some designs, but their package and exact ratings are not verified here. Do not choose a replacement based only on the RS-232 label; compare pinout, supply voltage, data rate, temperature, and connector requirements against the exact datasheets.

대체품과의 비교

파라미터 이 제품 SP3232EEY-L SP3222E MAX3232CD MAX232CD
Product Type 2/2 RS-232 transceiver 2/2 RS-232 transceiver RS-232 transceiver family member RS-232 transceiver RS-232 transceiver
Brand MaxLinear MaxLinear MaxLinear Maxim Integrated Maxim Integrated

주요 차별점

  • Integrated two-channel RS-232 interface (vs MAX3232CD)
  • Low-voltage charge-pump integration (vs MAX232CD)
  • Documented minimum data rate (vs SP3222E)
  • Low-power receiver-active shutdown (vs MAX202ID)

설계 노트

Place the charge-pump capacitors and supply bypass components directly beside the SP3232EY-L pins, following the exact capacitor connections and loop geometry in the current MaxLinear datasheet. The supplied family description confirms 0.1 μF capacitors for 3.3 V operation. Keep the high-current charge-pump paths compact and route them away from sensitive analog inputs, clock lines, and communication grounds where practical. Confirm capacitor voltage ratings and package footprints before layout release.

Design the RS-232 connector path with controlled return continuity, adequate ground reference, and connector-side ESD protection. RS-232 is a single-ended interface, so cable routing and grounding can materially affect noise immunity. Use the two transmitter and two receiver channels for their intended signal directions, and validate the assembled board with the target cable length, baud rate, and connected equipment rather than relying only on logic-level simulation.

Do not treat SP3232EY-L, SP3232EEY-L, and generic RS-232 transceiver names as automatically interchangeable. The verified search results show related listings, but they do not provide a complete exact-suffix pin table or ordering cross-reference. Confirm package suffix, pin names, charge-pump capacitor values, supply limits, and temperature range in the current manufacturer datasheet. Treat any cross-family substitution as a design review item, not a drop-in assumption.

규정 준수 정보

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
무연
Unknown
무할로겐
Unknown
분쟁 광물
Unknown

The supplied search results do not provide verified RoHS, REACH, lead-free, halogen-free, or conflict-minerals statements for the exact SP3232EY-L ordering code. AEC-Q100 is not applicable to this general-purpose interface IC based on the supplied data, but no automotive qualification claim should be inferred.

데이터 검증일: 2026-10-22 — XAIPART 부품 엔지니어링 팀이 검증하고 관리한 데이터

관련 검색

SP3232EY-L SP3232EY-L datasheet MaxLinear SP3232EY-L SP3232EY-L 3.3V RS-232 SP3232EY-L 120 kbps 16-TSSOP RS-232 transceiver SP3232EY-L pinout SP3232EY-L replacement SP3232EY-L buy SP3232EY-L price SP3232EY-L lead time RS-232 transceiver for portable equipment SP3232EY-L vs MAX3232CD 3.3V RS-232 charge pump IC

관련 부품 & 용어

MaxLinear SP3232EY-L SP3232EEY-L SP3222E MAX3232CD MAX232CD RS-232 RS-232 transceiver EIA/TIA-232-F interface IC line driver line receiver charge-pump power supply 3.3 V operation 120 kbps data rate 16-TSSOP surface-mount package portable equipment embedded serial interface legacy printer interface industrial control data acquisition ESD protection shutdown current RS-232 connector
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