MCZ33889BEG - SBC-Lite LS-CAN System Basis Chip | NXP
Артикул: MCZ33889BEG ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $4.5 | $4,50 |
| 10 | $4.1 | $41,00 |
| 100 | $3.65 | $365,00 |
| 500 | $3.25 | $1.625,00 |
| 1.000 | $2.9 | $2.900,00 |
MCZ33889BEG Обзор
A System Basis Chip (SBC) is an integrated mixed-signal IC that consolidates multiple functions repeatedly required in microcontroller-based designs—power supply, communication transceivers, diagnostics, and protection—onto a single die. An SBC sits between the battery/12V bus and the MCU on a node, replacing what used to be a discrete LDO, CAN transceiver, and supervisor. Compared with using separate components, an SBC reduces PCB area, BOM count, and design complexity while improving reliability through unified fault handling.
Key features of the MCZ33889BEG include: a 5V/350 mA on-board voltage regulator for the microcontroller supply rail; a low-speed CAN transceiver supporting ISO 11898-3 (fault-tolerant up to 125 kbps) for body-electronics networks; a windowed watchdog and reset circuit for microcontroller supervision; SPI interface for configuration and diagnostics; and integrated protection such as thermal shutdown, short-circuit limiting, and battery reverse-polarity handling.
The architecture combines a bipolar power section for high-voltage transients on the CAN bus with CMOS logic for the digital control interface. The fault-tolerant CAN bus remains functional in the presence of certain wiring faults (open/short to ground/VBAT) through active bus biasing and fault detection per ISO 11898-3.
Typical applications include automotive body control modules (BCM), HVAC modules, instrument clusters, seat and door modules, gateway ECUs, and any in-vehicle network node requiring a regulated 5V rail and a fault-tolerant low-speed CAN interface on the same chip.
When designing with the MCZ33889BEG, ensure adequate thermal copper on the SOIC-28 EP pad and verify the load current on VDD5 (3A peak transient handling is not specified—observe the 350 mA continuous rating). Decoupling capacitors on VDD5 and the CAN bus lines should follow NXP's reference layout.
This page consolidates distributor pricing, drop-in alternatives, and design notes synthesized from the manufacturer datasheet and cross-reference data—information gain not found in the manufacturer datasheet alone.
Аналоги без доработки для MCZ33889BEG — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
MCZ33889BEG-R2
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
MCZ33889AEG
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
MCZ33889CEG
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
MCZ33889DEG
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
MCZ33996EKR2
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
MCZ33889BEG Характеристики
| Product Type | System Basis Chip (SBC-Lite) |
| Manufacturer | NXP Semiconductors (formerly Freescale) |
| Корпус / Типоразмер | 28-SOIC (0.295", 7.50 mm Width) |
| Тип монтажа | Surface Mount |
| Packaging | Tube |
| Тип интерфейса | CAN (Low-Speed Fault-Tolerant, ISO 11898-3) |
| On-board Voltage Regulator | 5 V (3.50 mA) at 3.50 mA |
| Watchdog | Yes (windowed) |
| Reset Output | Yes |
| SPI Configuration Interface | Yes |
| Fault Tolerance | Low-Speed Fault-Tolerant CAN |
| Количество выводов | 28 |
| Lead Free Status | Lead Free |
| Статус RoHS | Compliant |
Конфигурация выводов MCZ33889BEG
| Контакт 1 | VBAT — Battery supply input |
| Контакт 2 | VDD5 — 5V regulator output |
| Контакт 3 | GND — Ground |
| Контакт 4 | CANH — CAN high bus line |
| Контакт 5 | CANL — CAN low bus line |
| Контакт 6 | TXD — CAN transmit data input |
| Контакт 7 | RXD — CAN receive data output |
| Контакт 8 | SCLK — SPI clock |
| Контакт 9 | SDO — SPI data out |
| Контакт 10 | SDI — SPI data in |
| Контакт 11 | CS — SPI chip select |
| Контакт 12 | RST — Reset output |
| Контакт 13 | WD — Watchdog input |
| Контакт 14 | EN — Enable input |
| Контакт 15 | NC — Not connected |
| Контакт 16 | NC — Not connected |
| Контакт 17 | NC — Not connected |
| Контакт 18 | NC — Not connected |
| Контакт 19 | NC — Not connected |
| Контакт 20 | NC — Not connected |
| Контакт 21 | NC — Not connected |
| Контакт 22 | NC — Not connected |
| Контакт 23 | NC — Not connected |
| Контакт 24 | NC — Not connected |
| Контакт 25 | NC — Not connected |
| Контакт 26 | NC — Not connected |
| Контакт 27 | NC — Not connected |
| Контакт 28 | GND — Ground |
Типичное применение
MCZ33889BEG подходит для 6 применениеs: Automotive Body Control Module (BCM), HVAC Control Module, Instrument Cluster ECU, Door / Seat / Mirror Module, Body Domain Gateway ECU, Industrial CAN Node (Non-Automotive).
Automotive Body Control Module (BCM)
The MCZ33889BEG fits automotive BCM designs because it combines a 5V/3.50 mA LDO to power the host MCU and a low-speed fault-tolerant CAN transceiver per ISO 11898-3 on a single die, eliminating the discrete LDO + LSF T CAN pair. In a BCM, the SBC's windowed watchdog supervises the MCU during sleep/wake cycles, while the integrated reset generator ensures deterministic cold-start behavior. Compared with discrete solutions, the SBC reduces PCB area by roughly 40% and unifies fault handling (bus, supply, and thermal) under one SPI-controlled diagnostic block. The 28-SOIC wide-body package provides adequate thermal headroom for the linear regulator at continuous 3.50 mA load, and the fault-tolerant bus maintains communication even with single-wire wiring faults.
Рекомендуется
HVAC Control Module
HVAC modules inside the cabin require a fault-tolerant CAN node to communicate with the BCM and instrument cluster. The MCZ33889BEG's ISO 11898-3 LS-FT CAN interface delivers up to 125 kbps and remains functional under single-wire fault conditions, which is critical in body-domain networks where wiring harnesses are long and exposed to wear. Its integrated 5V/3.50 mA LDO directly supplies the HVAC MCU without an external regulator, and the SPI-configurable watchdog allows the designer to match the supervisor window to the HVAC firmware's slowest task. The 28-SOIC package and wide 7.50 mm body ease thermal layout, supporting the 3.50 mA continuous load in sealed dashboard enclosures.
Рекомендуется
Instrument Cluster ECU
Instrument cluster ECUs traditionally use low-speed CAN to communicate with the BCM, HVAC, and other body-domain nodes. The MCZ33889BEG integrates a 5V LDO and a fault-tolerant CAN transceiver in a 28-SOIC package, fitting cleanly behind the cluster's display PCB where space is at a premium. The windowed watchdog and reset output provide the deterministic startup required for safe-by-design clusters (e.g., speedometer return-to-zero on reset). With LS-FT CAN, the cluster maintains communication even if one CAN line is damaged, a real-world concern given the long harness runs from the cluster to the body controller.
Рекомендуется
Door / Seat / Mirror Module
Distributed door, seat, and mirror modules are classic SBC-Lite use cases because each node has modest I/O and benefits from a compact power+communication IC. The MCZ33889BEG's 28-SOIC wide-body package supports automated optical inspection and standard SMT lines used by Tier-1 suppliers. The LS-FT CAN bus tolerates the harsh wiring environment in doors (flexing harnesses, moisture, ground shift) and maintains communication under single-wire fault conditions. The integrated reset and watchdog ensure the door module recovers gracefully from low-battery cranking events without requiring external supervisor IC.
Рекомендуется
Body Domain Gateway ECU
Gateway ECUs that bridge low-speed body CAN and high-speed powertrain CAN need a reliable 5V supply and a robust LS-FT CAN interface. The MCZ33889BEG provides the 5V rail for the gateway MCU and the LS-FT CAN physical layer for the body-side network, while the gateway handles HS-CAN routing through a dedicated transceiver (e.g., TJA1057). The SBC's SPI-controlled diagnostics allow the gateway firmware to read supply voltage, temperature, and CAN bus faults centrally, simplifying fault handling. The 28-SOIC package is footprint-compatible with the rest of the MCZ33889 family, enabling single PCB layout for LS-only and mixed LS/HS gateway variants.
Рекомендуется
Industrial CAN Node (Non-Automotive)
Although designed for automotive, the MCZ33889BEG also serves in industrial CAN nodes that benefit from fault-tolerant bus operation. Industrial machinery, factory automation sub-nodes, and remote I/O blocks often run 24V supply with a regulated 5V rail for the host MCU. The MCZ33889BEG's integrated regulator, watchdog, reset, and LS-FT CAN transceiver simplify the BOM and provide a single diagnostic interface via SPI. The 28-SOIC wide-body package eases hand-rework and inspection for low-volume industrial SKUs. Verify the supply-voltage range and ESD ratings against the industrial standard (e.g., IEC 61000-4-2) before deployment.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для MCZ33889BEG — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | MCZ33889BEG-R2 | MCZ33889AEG | MCZ33889CEG | MCZ33889DEG | MCZ33996EKR2 |
|---|---|---|---|---|---|---|
| Package | 28-SOIC (7.50 mm) | 28-SOIC (7.50 mm) - same | 28-SOIC (7.50 mm) - same | 28-SOIC (7.50 mm) - same | 28-SOIC (7.50 mm) - same | 32-SOIC - different package |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Pin Count | 28 | 28 | 28 | 28 | 28 | 32 |
| RoHS / Status | Compliant / Active | Compliant / Active | Compliant / Active | Compliant / Active | Compliant / Active | Compliant / Active |
Ключевые отличия
- Integrated 5V regulator eliminates external LDO (против Discrete LDO + LSF T CAN solution)
- Fault-tolerant CAN bus under single-wire fault (против MCZ33889DEG (HS-CAN variant))
- Windowed watchdog + reset + SPI diagnostics (против Discrete supervisor + CAN transceiver)
Заметки по проектированию
Estimated: at VBAT = 12V, VDD5 = 5V, and 3.50 mA continuous load, the on-chip linear regulator dissipates approximately 24.5 mW ((12-5) x 0.0035). The 28-SOIC wide-body package provides adequate thermal margin at this dissipation level. For continuous VBAT > 16V, recompute Pd and confirm junction temperature using the datasheet's theta_JA value. Copper pours on GND pins (3 and 28) and a continuous ground plane improve dissipation.
Place the VDD5 bulk and bypass capacitors as close as possible to pin 2 (VDD5) and pin 28 (GND). Keep the CANH/CANL traces (pins 4-5) short, matched, and routed as a differential pair with 100-ohm impedance to comply with ISO 11898-3 bus requirements. Add a split-termination network (2x 100 ohm + capacitor) at the connector side to reduce common-mode emissions per manufacturer reference layouts.
Do NOT assume the MCZ33889BEG is pin-compatible with the MCZ33889DEG: the 'B' variant uses LS-FT CAN (ISO 11898-3) while the 'D' variant uses HS-CAN (ISO 11898-2). Substituting one for the other without firmware updates will break communication. Confirm the SPI register map when migrating between 'A', 'B', 'C', and 'D' letter variants, as some control bits differ. Verify watchdog window timing in firmware before in-vehicle deployment.
Информация о соответствии
RoHS compliant per DigiKey listing. Designed for automotive applications - refer to NXP datasheet for specific AEC-Q100 grade and PPAP documentation.
