L9613B - ISO 9141 Medium-Speed Data Interface | STMicroelectronics
MPN： L9613B ✗ 停產L9613B 概覽
An ISO 9141-compatible data interface is a wired automotive communication interface that connects an automotive diagnostic or test system to a vehicle network through defined K-line and related signal functions. Within the product hierarchy, the L9613B is a monolithic interface IC, a communication transceiver, and therefore a semiconductor-level realization of ISO 9141 physical-layer functions. This classification distinguishes it from general-purpose logic ICs, memory devices, microcontrollers, and analog power-management components.
The verified manufacturer material confirms several important implementation details. The device includes standard ISO 9141-compatible interface functions. According to the manufacturer datasheet, the K, LO, and RX outputs have output-voltage behavior that varies with output current, including a transition related to RON multiplied by IOUT and a 2 × RON × IOUT plus UBE condition. The document also states that K, RX, and LI pins include protection against overvoltage, short circuits to ground or VS, and being driven beyond the supply rails. TX, RX, and LI receive comparable protection when internal pull-up behavior is considered.
L9613B is intended for medium-speed data-interface systems using ISO 9141-compatible signaling. Its monolithic construction consolidates the required interface functions into one package, helping designers reduce the number of discrete interface elements around a vehicle diagnostic connector or tester. The documented output behavior makes the K, LO, and RX nodes important when designing cable termination, fault-recovery behavior, and logic-level compatibility. Exact electrical limits, timing values, supply range, and package dimensions must be taken from the manufacturer datasheet for production design.
Typical use cases include automotive diagnostic testers, engine-control-unit service interfaces, vehicle workshop equipment, and ISO 9141-compatible electronic control modules. In these systems, the L9613B provides the physical-layer interface between a controller and an external diagnostic tool. Selection should account for the target vehicle network, cable length, bus topology, connector standard, protection requirements, and whether the interface must support legacy ISO 9141 rather than a newer protocol. The L9613B is not a general-purpose CAN transceiver and should not be treated as a substitute for CAN, LIN, or OBD-II protocol engines.
For implementation, follow the manufacturer’s recommended input, output, decoupling, grounding, and protection arrangements. Verify every external resistor, capacitor, connector, and transient-protection device against the absolute maximum ratings and application diagrams in the L9613 datasheet. PCB signal integrity and automotive transient immunity are especially important because the interface connects directly to conductors entering a vehicle environment. Do not infer package pin numbers or package compatibility from distributor descriptions alone; use the official pin configuration before layout or substitution.
This page consolidates the verified STMicroelectronics product page, manufacturer PDF, distributor listings, and targeted cross-reference results. It also separates confirmed ISO 9141 functionality from unverified quantities, making the documentation useful for preliminary design evaluation, sourcing, datasheet discovery, and drop-in-replacement investigation without presenting missing electrical or packaging data as established facts.
直接替換替代品，適用於 L9613B — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此產品無可直接替換的替代品。
申請替代品L9613B 規格
| Product Type | Monolithic medium-speed data-interface IC |
| Manufacturer | STMicroelectronics |
| Interface Compatibility | ISO 9141 compatible |
| Device Family | L9613 |
| Ordering Code | L9613B |
| Pin Protection | Protection against overvoltage, short circuit to GND or VS, and operation beyond VS and GND on applicable pins |
| RoHS Compliance | unknown |
| REACH Compliance | unknown |
| AEC-Q100 Status | unknown |
| Lead-Free Status | unknown |
| Halogen-Free Status | unknown |
L9613B standard 腳位配置指南
L9613B（standard 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： L9613B.
請參閱 資料表 以查看完整腳位配置。
典型應用
L9613B 適用於 6 應用s: Automotive Diagnostic Testers, Engine Control Unit Service Interfaces, Vehicle Workshop Communication Equipment, ISO 9141 Electronic Control Modules, Legacy Vehicle Bus Test Points, Industrial Vehicle Diagnostic Equipment.
Automotive Diagnostic Testers
The STMicroelectronics L9613B is appropriate for a workshop diagnostic interface that must communicate through an ISO 9141-compatible physical layer. Its confirmed monolithic implementation consolidates the standard interface functions into one IC, while the documented protection features help the interface withstand conditions beyond the normal supply rails or shorted toward GND or VS. A tester designer still needs to verify supply voltage, logic thresholds, timing, and package pins from the L9613 datasheet. External protection may also be required because the interface connects to a long vehicle harness exposed to automotive transients.
Engine Control Unit Service Interfaces
The L9613B fits an electronic control unit that exposes an ISO 9141-compatible service connection for workshop diagnosis. The manufacturer confirms that the L9613 contains standard ISO 9141-compatible interface functions, making it more suitable for this legacy physical interface than an unrelated CAN or LIN transceiver. Its documented K, LO, and RX output-voltage dependence on current provides useful information when validating signal integrity under low-load or transient conditions. The ECU designer must still check operating temperature, supply range, logic compatibility, and automotive qualification before production use.
Vehicle Workshop Communication Equipment
A portable vehicle workshop interface can use the L9613B when the target diagnostic equipment relies on ISO 9141-compatible signaling. The monolithic construction reduces the number of separate interface ICs needed in the tester and supports a compact implementation. The manufacturer datasheet’s statements about protection against overvoltage, shorts to GND or VS, and operation beyond VS and GND are particularly relevant when the tester connects to unknown vehicle wiring. External cable protection, filtering, and grounding remain design requirements when the enclosure and harness cannot prevent automotive surges.
ISO 9141 Electronic Control Modules
The L9613B is suitable for an ISO 9141-compatible electronic control module that requires a dedicated medium-speed data interface rather than a general-purpose communications transceiver. Its confirmed monolithic interface functions allow the controller side of the link to be implemented without duplicating the standard physical-layer behavior across several discrete blocks. Designers should use the manufacturer’s typical application information to establish resistor values, external protection, and supply decoupling. Exact data-rate limits and timing values were not present in the supplied excerpts and must be taken directly from the official datasheet.
Legacy Vehicle Bus Test Points
The L9613B can support legacy vehicle-bus test points where the diagnostic architecture uses ISO 9141-compatible K-line communication. Its documented output behavior is useful when engineers probe transitions and diagnose low-current or negative-transient conditions on K, LO, and RX. Because this is a physical-layer interface IC rather than a protocol controller, it should be paired with the diagnostic message-processing hardware required by the vehicle architecture. Verification of signal thresholds, timing, and fault behavior must use the manufacturer electrical-characteristics and application sections.
Industrial Vehicle Diagnostic Equipment
The L9613B is applicable to industrial vehicle diagnostic equipment that must service ISO 9141-compatible controllers used in forklifts, agricultural machinery, or transportation fleets. The interface’s documented protection against overvoltage and supply-rail shorts provides a useful starting point for robust external wiring, although every production design still needs its own surge, ESD, and EMC validation. The monolithic construction simplifies the physical interface, but engineers must confirm package dimensions, pinout, supply range, temperature range, and qualification status before selecting it for a harsh industrial environment.
工程參考資料，適用於 L9613B — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 |
|---|---|
| Product Type | Monolithic medium-speed data-interface IC |
| Brand | STMicroelectronics |
| Interface Standard | ISO 9141 compatible |
| Ordering Code | L9613B |
| Verified Reference Price | USD 1.6115 starting price as of 2026-10-28 |
主要差異化特點
- Confirmed ISO 9141-compatible physical interface (對比General-purpose CAN interface)
- Monolithic interface-function integration (對比Discrete ISO 9141 interface implementation)
- Documented fault-protection behavior (對比Unprotected discrete interface stages)
設計說明
Do not treat the L9613B as a CAN, LIN, or complete OBD-II controller. The verified manufacturer description establishes standard ISO 9141-compatible interface functions, so the electrical protocol, bus termination, diagnostic connector, and controller architecture must match ISO 9141 requirements. Before layout, verify the official package drawing and numbered pin table in the L9613 datasheet rather than relying on distributor pinout images or an inferred SOIC-style outline.
Validate the complete power path against the L9613 electrical-characteristics table before selecting input and output capacitors. The manufacturer datasheet describes K, LO, and RX output voltage as a function of output current, including the RON × IOUT and 2 × RON × IOUT + UBE regions. Ensure the design remains inside the documented output-current range and use the manufacturer’s recommended bypass and external-component values to avoid incorrect threshold or fault-recovery behavior.
The interface connects to external vehicle wiring, so return-current paths and cable transients require deliberate PCB planning. Keep the supported K, TX, RX, and LO routes away from noisy switching nodes, provide a low-impedance ground reference, and place protection components near the connector where their switching currents can return without traversing sensitive circuitry. Verify the final design with the manufacturer application information and applicable vehicle transient requirements.
合規資訊
The supplied official product page, datasheet record, and distributor listings do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. No compliance claim has been inferred.