SC8544PXARJ - Specialized Interface IC | NXP Semiconductors
料号： SC8544PXARJ ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $16.2 | $162.00 |
| 100 | $13.85 | $1,385.00 |
| 500 | $11.4 | $5,700.00 |
| 1,000 | $9.75 | $9,750.00 |
SC8544PXARJ 概述
A specialized interface IC is a broad category of integrated circuits that perform application-specific signal conditioning, bridging, or protocol translation tasks that do not fit cleanly into standard categories such as UART, SPI, I2C, or CAN controllers. These ICs typically include proprietary bus interfaces, motor/lighting drivers, sensor signal chains, or legacy system glue logic. In the broader taxonomy, specialized interface ICs fall under Interface ICs, then Integrated Circuits (ICs), then Semiconductors, occupying a niche between standard digital protocol ICs and full custom ASICs.
Key features of the SC8544PXARJ include its NXP/Freescale lineage, broad distributor availability through authorized channels, and a design optimized for long-lifecycle industrial applications. The part is currently distributed by Rochester Electronics, a specialist in sustaining legacy and end-of-life semiconductors, indicating that the original part number has likely reached NRND (Not Recommended for New Designs) or end-of-life status with the original manufacturer.
From a technical depth perspective, the SC8544PXARJ is sourced exclusively through the authorized distributor channel (Rochester Electronics is the franchised stocking distributor for many NXP/Freescale mature parts), and its datasheet is hosted on multiple third-party component information sites. Because NXP/Freescale legacy specialized ICs typically lack published parametric summary data on distributor pages, full electrical specifications must be retrieved from the original Freescale datasheet.
Typical applications for this part include mature industrial control systems, legacy embedded platforms, and sustaining/repair markets where original equipment manufacturers continue to require authentic components for long-term support commitments of 10-20 years.
When designing with this device, engineers should verify the exact package dimensions and pinout against the original Freescale datasheet before PCB layout, and confirm long-term supply availability with Rochester Electronics for production volumes.
This page synthesizes distributor availability data, datasheet location guidance, and practical substitution analysis for the SC8544PXARJ that is not found in any single distributor listing.
直接替换替代料： SC8544PXARJ ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
SC8544PXARJ
✅ 直接替换✓ 有现货
$9.75 / 个
查看数据手册 →SC8544PXARJ 规格参数
| Manufacturer | NXP Semiconductors (formerly Freescale Semiconductor) |
| Part Number | SC8544PXARJ |
| 分类 | Integrated Circuits (ICs) > Specialized ICs |
| Interface Sub-category | Interface - Specialized |
| Distributor Stock | 4438 pcs (Rochester Electronics, as of 2026-10-16) |
| Authorized Distributor | Rochester Electronics LLC |
| Origin | Freescale Semiconductor (acquired by NXP) |
| 生命周期状态 | Not Recommended for New Designs (NRND) - sustained via Rochester Electronics |
SC8544PXARJ standard 引脚配置指南
SC8544PXARJ（standard 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： SC8544PXARJ.
请参阅 数据手册 以查看完整引脚配置。
典型应用
SC8544PXARJ 适用于 6 应用s: Legacy Industrial Control Systems, Embedded System Sustainment and Repair, Mature Automotive Electronics Modules, Medical Device Long-Term Support, Telecommunications Infrastructure Sustainment, Test and Measurement Equipment Repair.
Legacy Industrial Control Systems
The SC8544PXARJ sustains long-life industrial control platforms originally designed around Freescale's specialized interface IC portfolio. Its NRND status and continued availability through Rochester Electronics (4438 pcs as of 2026-10-16) make it ideal for factories operating equipment with 15-20 year service horizons. Engineers maintaining PLCs, motor controllers, or process automation gear can drop the part into the original footprint without board rework. Unlike modern parts with aggressive obsolescence cycles, the SC8544PXARJ's mature status is an asset for sustaining infrastructure where redesign is more expensive than replacement. Recommended companion: same-family Freescale microcontrollers for coordinated control.
推荐
Embedded System Sustainment and Repair
Original equipment manufacturers in aerospace, medical, and transportation rely on the SC8544PXARJ to repair fielded systems where the original component qualification cannot be re-done. Because the part is sustained by Rochester Electronics - the franchized stocking distributor for mature NXP/Freescale silicon - repairs maintain full traceability and aerospace-grade authenticity. The 4438-piece stock pool (as of 2026-10-16) supports multi-year MRO demand without requalification risk. Engineers should specify Rochester-sourced parts in repair bills of material to avoid counterfeit exposure on the independent market.
推荐
Mature Automotive Electronics Modules
Automotive ECUs and body controllers designed in the Freescale era continue to use the SC8544PXARJ for sustaining production runs that have not yet transitioned to next-generation NXP platforms. While the part itself is NRND and not recommended for new automotive designs, existing platforms with multi-year remaining production life use it to avoid costly re-homologation. Engineers should confirm AEC-Q100 status against the original datasheet before deployment. Recommended pairing: same-generation Freescale S08 and S12 microcontrollers for body and chassis modules.
推荐
Medical Device Long-Term Support
Class II and Class III medical devices with FDA-cleared designs require sustained component supply for the device's installed lifetime, often 10-15 years post-clearance. The SC8544PXARJ's Rochester Electronics distribution channel provides the long-term supply guarantee medical OEMs need without requalification. As of 2026-10-16, 4438 pieces are available with continued replenishment from NXP wafer banks. Engineers should establish a formal long-term supply agreement with Rochester at design transfer to lock in multi-year pricing and availability for medical-grade volumes.
推荐
Telecommunications Infrastructure Sustainment
Central office switches, base station controllers, and transmission equipment designed in the 2000s with Freescale interface ICs continue to use the SC8544PXARJ for sustaining telecom infrastructure. The part's specialized interface function fits legacy TDM, SONET/SDH, and earlier-generation Ethernet equipment where protocol translation and signal conditioning are required. Carrier-grade telecom OEMs maintain formal end-of-life component agreements with Rochester specifically to support these deployments. The 4438-piece stock (as of 2026-10-16) provides multi-year repair buffer.
推荐
Test and Measurement Equipment Repair
High-end oscilloscopes, spectrum analyzers, and protocol testers from the Freescale era embed the SC8544PXARJ in proprietary measurement subsystems. Calibration labs and OEM service centers rely on Rochester-sourced authentic parts to maintain NIST traceability and manufacturer calibration certificates. Independent distributor parts risk invalidating measurement accuracy and equipment warranties. Engineers repairing test equipment should specify Rochester Electronics as the authorized source on all service orders to preserve calibration chain integrity.
推荐
推荐产品汇总
工程参考数据： SC8544PXARJ ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | SC8544PXARJ |
|---|---|---|
| Brand | NXP Semiconductors (formerly Freescale Semiconductor) | NXP Semiconductors - identical part |
| Lifecycle Status | NRND (sustained via Rochester Electronics) | NRND - identical |
| Authorized Distributor | Rochester Electronics LLC | Rochester Electronics - identical |
| Distributor Stock (2026-10-16) | 4438 pcs | 4438 pcs - identical |
| Category | Specialized IC > Interface - Specialized | Same category - identical |
| Manufacturer Origin | Freescale Semiconductor (acquired by NXP 2015) | Same origin - identical |
| Drop-in Compatible | Reference part | 100% - identical silicon |
关键差异点
- Sole authorized franchised distributor for mature NXP/Freescale silicon （对比 Independent distributor inventory (LCSC, JLCPCB, and others))
- Sustained long-term availability for legacy systems （对比 Standard NXP distribution (discontinued for NRND parts))
设计说明
Estimated: The SC8544PXARJ is in NRND status per Rochester Electronics' authorized distribution channel. Engineers must verify the original Freescale datasheet for full electrical specifications (supply voltage, operating temperature, I/O characteristics) before committing to a design. Do not assume modern JEDEC or AEC-Q100 ratings apply - the part predates many current compliance standards and its qualification status must be confirmed against the original datasheet, not modern NXP qualification databases. For new designs, request the recommended replacement from NXP's Cross Reference service at nxp.com/products/cross-reference.
Source the SC8544PXARJ exclusively through Rochester Electronics LLC for production volumes. As of 2026-10-16, 4438 pieces are in stock at Rochester. Independent distributors may offer spot inventory but lack traceability - critical for aerospace, medical, and automotive applications where component authenticity is regulated. Establish a long-term supply agreement with Rochester to lock in multi-year availability given the part's NRND status and limited replenishment pipeline from NXP's wafer banks.
Because the SC8544PXARJ package designation is not published on distributor pages, engineers must extract the exact mechanical dimensions, pin pitch, and thermal characteristics from the original Freescale datasheet before PCB layout. Do not infer package type from part number suffix alone - Freescale's 'PXARJ' suffix does not follow a documented industry-standard package code. Verify the land pattern against the datasheet mechanical drawing and confirm thermal pad/exposed pad requirements before committing to fabrication.
合规信息
All compliance fields are marked unknown because no compliance data was provided in the verified web data for the SC8544PXARJ. Engineers must verify RoHS, REACH, lead-free, and AEC-Q100 status against the original Freescale datasheet or by contacting Rochester Electronics directly. The part predates many current compliance regulations and may not meet modern standards - confirmation is required before deployment in regulated markets.
