L9613B013TR - ISO 9141 Transceiver | STMicroelectronics
MPN： L9613B013TR ✓ 啟用中L9613B013TR 概覽
An ISO 9141 interface transceiver is an integrated circuit that combines a line driver and line receiver with the electrical interface required by a K-line serial network. It belongs to the automotive interface IC category, where a controller uses a physical-layer transceiver to exchange diagnostic or application data with a vehicle bus. The L9613 provides the hardware layer between a microcontroller's serial I/O signals and the vehicle wiring harness.
The L9613B013TR operates from a 4.8 V minimum supply and reaches a 36 V maximum supply, while tolerating transients to 40 V. Reverse-battery protection extends to VS values down to -24 V. These characteristics make the device suitable for automotive electrical environments where supply transients, load dumps, and incorrect battery polarity must be considered. A maximum signaling rate of 130 kbps is identified for the component.
STMicroelectronics describes the L9613 as a monolithic integrated circuit containing standard ISO 9141-compatible interface functions. Integrating the transmitter and receiver reduces the number of external line-interface components required around a vehicle diagnostic controller. The 8-pin SOIC outline is compact enough for body-control and engine-control electronics while remaining compatible with standard small-outline surface-mount assembly methods.
Typical applications include automotive diagnostic interfaces, engine control units, transmission controllers, body control modules, instrument clusters, immobilizers, and other embedded vehicle systems that communicate over a K-line physical layer. Using a dedicated transceiver helps isolate the controller from the wired diagnostic network and supports operation across the voltage range expected in automotive electrical systems.
PCB implementation should follow the manufacturer's application diagram for decoupling, connector-side protection, and signal routing. Keep the transceiver close to the vehicle connector or bus interface, provide a stable local supply reference, and verify the connected ECU’s logic levels. The SOIC footprint leaves adequate routing space for bypassing and external protection components, but automotive transient and ground-loop requirements remain the dominant layout constraints.
This product page combines the manufacturer interface description with package, voltage, speed, and sourcing details, then adds pin-assignment guidance, practical PCB considerations, application-specific selection advice, and a comparison of documented alternative variants. Engineers can use these notes to evaluate the L9613B013TR for an existing ISO 9141 circuit before requesting a quote and confirming supply availability.
直接替換替代品，適用於 L9613B013TR — 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。
L9613B013TR 規格
| Device Type | ISO 9141-compatible interface transceiver |
| Transceiver Configuration | 1 transmitter and 1 receiver |
| Interface Standard | ISO 9141 |
| 工作電源電壓 | 4.8 V to 36 V |
| Transient Supply Voltage | 40 V |
| Reverse Supply Voltage | VS down to -24 V |
| Maximum Signaling Rate | 130 kbps |
| 封裝 | 8-pin SOIC |
| 安裝類型 | Surface mount |
| 腳位數 | 8 pins |
| Device Architecture | Monolithic integrated circuit |
| Line Interface | Single K-line driver and receiver |
L9613B013TR 8-pin soic 腳位配置指南
L9613B013TR（8-pin soic 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： L9613B013TR.
請參閱 資料表 以查看完整腳位配置。
典型應用
L9613B013TR 適用於 6 應用s: Automotive Diagnostic Interface, Engine Control Unit K-Line Link, Body Control Module Communication, Transmission Controller Diagnostics, Instrument Cluster K-Line Interface, Automotive Immobilizer Interface.
Automotive Diagnostic Interface
The L9613B013TR fits an ISO 9141 diagnostic interface because it combines a transmitter and receiver in one 8-pin SOIC package. Its 4.8 V to 36 V operating range accommodates vehicle supply conditions, while transient tolerance to 40 V adds margin against electrical disturbances. The 130 kbps maximum signaling rate supports standard K-line diagnostic traffic. Place the device between the ECU microcontroller and the vehicle bus wiring, following the manufacturer application circuit for decoupling and external network components.
推薦
Engine Control Unit K-Line Link
An engine control unit can use the L9613B013TR as the physical-layer interface for ISO 9141 diagnostic communication. The monolithic transmitter-receiver arrangement reduces the number of separate bus-driver components, while the SOIC-8 package preserves space for compact control boards. Its 36 V normal supply ceiling, 40 V transient capability, and reverse-supply tolerance to -24 V are directly relevant to automotive power environments. Confirm ECU logic levels, network termination, protection components, and thermal requirements before layout release.
推薦
Body Control Module Communication
The L9613B013TR is suitable for a body control module that connects a low-speed vehicle diagnostic network to an embedded controller. Its single ISO 9141-compatible transmitter and receiver provide the physical interface without requiring separate line-driver and receiver packages. The 8-pin SOIC footprint simplifies assembly in distributed automotive electronics, and the 4.8 V minimum operating voltage supports standard vehicle power rails. Follow the manufacturer layout guidance to isolate the bus wiring from sensitive control signals and keep switching-current paths separate from transceiver ground currents.
推薦
Transmission Controller Diagnostics
A transmission controller can use the L9613B013TR when it needs an ISO 9141-compatible service and diagnostic connection. The device supports signaling to 130 kbps and operates across a 4.8 V to 36 V supply range, covering common automotive operating conditions. Its reverse-supply tolerance to -24 V and transient capability to 40 V are useful in harsh vehicle environments. The engineer should still validate the controller protocol timing, connector protection, ECU ground strategy, and qualification requirements for the target vehicle platform.
推薦
Instrument Cluster K-Line Interface
The L9613B013TR can provide the K-line physical layer in an instrument-cluster or vehicle test interface. Its integrated transmitter and receiver keep the design compact, and the 8-pin SOIC package is compatible with conventional surface-mount PCB assembly. The 130 kbps maximum rate is suitable for low-speed diagnostic communication rather than high-bandwidth vehicle networks. Where the cluster shares a connector with other loads, use the manufacturer application circuit and separate noisy return currents to preserve reliable bus signaling.
推薦
Automotive Immobilizer Interface
The L9613B013TR can support an ISO 9141-compatible diagnostic connection in an immobilizer or security ECU. Its monolithic interface implementation reduces component count, while the SOIC-8 package provides a compact footprint for densely packaged vehicle electronics. The operating supply of 4.8 V to 36 V and transient rating to 40 V align with demanding vehicle power systems. Validate communication thresholds, security-related reset behavior, connector protection, and the complete ECU qualification before using the interface in a security-critical production design.
推薦
工程參考資料，適用於 L9613B013TR — 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 | L9613B |
|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics |
| Package | SOIC-8 | SOIC-8 - same |
| Device Type | ISO 9141-compatible transceiver | ISO 9141-compatible transceiver |
| Transceiver Configuration | 1 transmitter and 1 receiver | 1 transmitter and 1 receiver |
| Pin Count | 8 pins | 8 pins |
| Circuit Modification Required | Not applicable | No modification required |
主要差異化特點
- Directly documented drop-in replacement (對比L9613B)
- Integrated one-transmitter, one-receiver arrangement (對比L9613B)
- Automotive supply range and transient capability (對比L9613B)
設計說明
Follow the STMicroelectronics L9613 application diagram for the input and output decoupling capacitors, bus connection, and protection network. Keep the SOIC-8 transceiver close to the vehicle connector or bus branch, and route the K-line conductor away from high-current switching nodes. The 8-pin footprint provides only a limited number of connection points, so assign every net from the manufacturer pin-description table before routing.
Design the transceiver supply path for normal operation from 4.8 V to 36 V and transient conditions to 40 V. Include the external protection network shown in the manufacturer application circuit rather than assuming the IC alone provides complete automotive surge protection. Keep high-current return currents out of the transceiver ground reference, and verify the ECU rail, connector wiring, and reverse-battery conditions against the complete system requirement.
Preserve the separation between the K-line path and sensitive analog or high-speed digital circuitry. Use a controlled ground reference near the device, avoid long shared traces between bypass capacitors and power pins, and verify that the bus stub length matches the manufacturer's reference network. Because the maximum signaling rate is 130 kbps, priority is reliable automotive noise tolerance and connector behavior rather than high-speed impedance matching.
Do not select a generic transceiver solely because both devices use an 8-pin SOIC package. Confirm pin-level functions, supply limits, receiver thresholds, logic polarity, bus loading, and automotive qualification for every proposed substitute. The L9613B is the documented drop-in replacement, but production use should still confirm the exact released suffix, temperature grade, and lifecycle status.
合規資訊
Compliance declarations are not stated on the manufacturer product page excerpt and must be confirmed from the current STMicroelectronics product documentation for the exact ordering code.