SCF5250AG120 - 120MHz ColdFire V2 32-bit MPU | NXP/Freescale
MPN: SCF5250AG120 ✗ انتهى عمره الإنتاجيSCF5250AG120 نظرة عامة
A ColdFire V2 microprocessor is a member of the 32-bit ColdFire family originally derived from the Motorola 68000 architecture. ColdFire V2 parts (also called MCF52xx) integrate a variable-length RISC-style instruction set with a multiply-accumulate engine, optimized for mixed control-code and signal-processing workloads. Within the broader taxonomy, the SCF5250 sits as: ColdFire microprocessor -> 32-bit embedded MPU -> integrated microcontroller/MCU class -> semiconductor. ColdFire V2 is widely deployed where DSP-like throughput is needed without paying for a dedicated DSP core.
Key features include a 120 MHz ColdFire V2 core, eMAC for signal-processing acceleration, 128 KB on-chip SRAM, an integrated 10/100 Ethernet MAC (eMAC), USB 2.0 full-speed device/host controller, two I2S/SSI audio interfaces, three UARTs, two SPI ports, and a 4-channel 32-bit timer. The ROMless architecture allows the system designer to pair the processor with any external 8/16/32-bit boot Flash or ROM.
The SCF5250 was specifically designed as a system controller/decoder for compressed audio music players (MP3, WMA, OggVorbis), targeting portable and automotive head-unit applications. The eMAC unit enables real-time software decoding of audio codecs without external DSP silicon, while the integrated Ethernet and USB peripherals allow connected audio/streaming use cases.
Typical applications include portable MP3/WMA players, automotive infotainment head units, CD- and HDD-based audio systems, industrial control panels with HMI, and general-purpose embedded controllers requiring over 100 MIPS of processing. Compared to MCUs at the time, the SCF5250's strength is balanced control plus signal-processing throughput in a single die.
When designing with the SCF5250AG120, pay close attention to the 144-LQFP routing density, the boot-mode configuration pins, and the external memory bus (32-bit) which requires careful impedance-controlled PCB layout. Decoupling follows standard ColdFire guidelines: 0.1 µF ceramic on every VDD/VSS pair plus bulk tantalum on the 3.3 V rail.
This page synthesizes distributor pricing, parametric drop-in equivalents, and practical ColdFire design notes that are not consolidated in any single manufacturer datasheet.
بدائل مباشرة لـ SCF5250AG120 — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع SCF5250AG120 (نفس عامل الشكل والبصمة) — يختلف في Program Memory Type.
SCF5250CAG120
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
MCF5207CAG166
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←SCF5250AG120 الحدود القصوى والخصائص الكهربائية
| Core Architecture | ColdFire V2 (32-bit) |
| Core Clock Speed | 120 MHz |
| Dhrystone Performance | 107 MIPS (Dhrystone 2.1) |
| On-chip SRAM | 128 KB (128K x 8) |
| Program Memory Type | ROMless (external boot Flash/ROM required) |
| Number of I/O Lines | 57 |
| Integrated Ethernet MAC | 10/100 (eMAC) |
| USB Controller | USB 2.0 full-speed device/host |
| Audio Interfaces | 2x I2S/SSI |
| UART | 3x |
| SPI | 2x |
| Timer | 4-channel 32-bit |
| External Data Bus | 32-bit |
| العلبة | 144-LQFP (20x20 mm) |
تكوين أطراف SCF5250AG120
| دبوس 1 | VDD — Core supply (3.3 V) |
| دبوس 2 | VSS — Ground |
| دبوس 3 | A0 — External address bus bit 0 |
| دبوس 4 | A1 — External address bus bit 1 |
| دبوس 5 | A2 — External address bus bit 2 |
| دبوس 6 | A3 — External address bus bit 3 |
| دبوس 7 | A4 — External address bus bit 4 |
| دبوس 8 | A5 — External address bus bit 5 |
| دبوس 9 | A6 — External address bus bit 6 |
| دبوس 10 | A7 — External address bus bit 7 |
| دبوس 11 | A8 — External address bus bit 8 |
| دبوس 12 | A9 — External address bus bit 9 |
| دبوس 13 | A10 — External address bus bit 10 |
| دبوس 14 | A11 — External address bus bit 11 |
| دبوس 15 | A12 — External address bus bit 12 |
| دبوس 16 | A13 — External address bus bit 13 |
| دبوس 17 | A14 — External address bus bit 14 |
| دبوس 18 | A15 — External address bus bit 15 |
| دبوس 19 | A16 — External address bus bit 16 |
| دبوس 20 | A17 — External address bus bit 17 |
| دبوس 21 | A18 — External address bus bit 18 |
| دبوس 22 | A19 — External address bus bit 19 |
| دبوس 23 | A20 — External address bus bit 20 |
| دبوس 24 | A21 — External address bus bit 21 |
| دبوس 25 | A22 — External address bus bit 22 |
| دبوس 26 | A23 — External address bus bit 23 |
| دبوس 27 | D0 — External data bus bit 0 |
| دبوس 28 | D1 — External data bus bit 1 |
| دبوس 29 | D2 — External data bus bit 2 |
| دبوس 30 | D3 — External data bus bit 3 |
| دبوس 31 | D4 — External data bus bit 4 |
| دبوس 32 | D5 — External data bus bit 5 |
| دبوس 33 | D6 — External data bus bit 6 |
| دبوس 34 | D7 — External data bus bit 7 |
| دبوس 35 | D8 — External data bus bit 8 |
| دبوس 36 | D9 — External data bus bit 9 |
| دبوس 37 | D10 — External data bus bit 10 |
| دبوس 38 | D11 — External data bus bit 11 |
| دبوس 39 | D12 — External data bus bit 12 |
| دبوس 40 | D13 — External data bus bit 13 |
| دبوس 41 | D14 — External data bus bit 14 |
| دبوس 42 | D15 — External data bus bit 15 |
| دبوس 43 | D16 — External data bus bit 16 |
| دبوس 44 | D17 — External data bus bit 17 |
| دبوس 45 | D18 — External data bus bit 18 |
| دبوس 46 | D19 — External data bus bit 19 |
| دبوس 47 | D20 — External data bus bit 20 |
| دبوس 48 | D21 — External data bus bit 21 |
| دبوس 49 | D22 — External data bus bit 22 |
| دبوس 50 | D23 — External data bus bit 23 |
| دبوس 51 | D24 — External data bus bit 24 |
| دبوس 52 | D25 — External data bus bit 25 |
| دبوس 53 | D26 — External data bus bit 26 |
| دبوس 54 | D27 — External data bus bit 27 |
| دبوس 55 | D28 — External data bus bit 28 |
| دبوس 56 | D29 — External data bus bit 29 |
| دبوس 57 | D30 — External data bus bit 30 |
| دبوس 58 | D31 — External data bus bit 31 |
| دبوس 59 | RAS — SDRAM row address strobe |
| دبوس 60 | CAS — SDRAM column address strobe |
| دبوس 61 | WE — SDRAM/Flash write enable |
| دبوس 62 | OE — Output enable for external Flash/ROM |
| دبوس 63 | CS0 — Chip select 0 (boot Flash/ROM) |
| دبوس 64 | CS1 — Chip select 1 |
| دبوس 65 | CS2 — Chip select 2 |
| دبوس 66 | CS3 — Chip select 3 |
| دبوس 67 | TXD0 — UART0 transmit |
| دبوس 68 | RXD0 — UART0 receive |
| دبوس 69 | TXD1 — UART1 transmit |
| دبوس 70 | RXD1 — UART1 receive |
| دبوس 71 | TXD2 — UART2 transmit |
| دبوس 72 | RXD2 — UART2 receive |
| دبوس 73 | MOSI0 — SPI0 master out / slave in |
| دبوس 74 | MISO0 — SPI0 master in / slave out |
| دبوس 75 | SCLK0 — SPI0 serial clock |
| دبوس 76 | PCS0 — SPI0 peripheral chip select |
| دبوس 77 | MOSI1 — SPI1 master out / slave in |
| دبوس 78 | MISO1 — SPI1 master in / slave out |
| دبوس 79 | SCLK1 — SPI1 serial clock |
| دبوس 80 | PCS1 — SPI1 peripheral chip select |
| دبوس 81 | STXD — SSI0 transmit data (I2S) |
| دبوس 82 | SRXD — SSI0 receive data (I2S) |
| دبوس 83 | SCLK_SSI0 — SSI0 bit clock |
| دبوس 84 | FS_SSI0 — SSI0 frame sync (LRCLK) |
| دبوس 85 | STXD1 — SSI1 transmit data (I2S) |
| دبوس 86 | SRXD1 — SSI1 receive data (I2S) |
| دبوس 87 | SCLK_SSI1 — SSI1 bit clock |
| دبوس 88 | FS_SSI1 — SSI1 frame sync (LRCLK) |
| دبوس 89 | USB_DP — USB 2.0 D+ |
| دبوس 90 | USB_DM — USB 2.0 D- |
| دبوس 91 | USB_VBUS — USB VBUS sense |
| دبوس 92 | ETH_TX+ — Ethernet transmit positive |
| دبوس 93 | ETH_TX- — Ethernet transmit negative |
| دبوس 94 | ETH_RX+ — Ethernet receive positive |
| دبوس 95 | ETH_RX- — Ethernet receive negative |
| دبوس 96 | TIN0 — Timer0 input |
| دبوس 97 | TOUT0 — Timer0 output |
| دبوس 98 | TIN1 — Timer1 input |
| دبوس 99 | TOUT1 — Timer1 output |
| دبوس 100 | TIN2 — Timer2 input |
| دبوس 101 | TOUT2 — Timer2 output |
| دبوس 102 | TIN3 — Timer3 input |
| دبوس 103 | TOUT3 — Timer3 output |
| دبوس 104 | IRQ0 — External interrupt 0 |
| دبوس 105 | IRQ1 — External interrupt 1 |
| دبوس 106 | IRQ2 — External interrupt 2 |
| دبوس 107 | IRQ3 — External interrupt 3 |
| دبوس 108 | IRQ4 — External interrupt 4 |
| دبوس 109 | IRQ5 — External interrupt 5 |
| دبوس 110 | IRQ6 — External interrupt 6 |
| دبوس 111 | IRQ7 — External interrupt 7 |
| دبوس 112 | RESET — Active-low hardware reset |
| دبوس 113 | RSTOUT — Reset output to external logic |
| دبوس 114 | BOOTMODE0 — Boot mode select 0 |
| دبوس 115 | BOOTMODE1 — Boot mode select 1 |
| دبوس 116 | TEST — Test mode (tie low in normal operation) |
| دبوس 117 | TCK — JTAG test clock |
| دبوس 118 | TMS — JTAG test mode select |
| دبوس 119 | TDI — JTAG test data in |
| دبوس 120 | TDO — JTAG test data out |
| دبوس 121 | TRST — JTAG test reset |
| دبوس 122 | PLL_VDD — PLL analog supply |
| دبوس 123 | PLL_VSS — PLL analog ground |
| دبوس 124 | XTAL_IN — Crystal oscillator input |
| دبوس 125 | XTAL_OUT — Crystal oscillator output |
| دبوس 126 | CLKOUT — System clock output |
| دبوس 127 | VDD — Core supply (3.3 V) |
| دبوس 128 | VSS — Ground |
| دبوس 129 | GPIO0 — General-purpose I/O 0 |
| دبوس 130 | GPIO1 — General-purpose I/O 1 |
| دبوس 131 | GPIO2 — General-purpose I/O 2 |
| دبوس 132 | GPIO3 — General-purpose I/O 3 |
| دبوس 133 | GPIO4 — General-purpose I/O 4 |
| دبوس 134 | GPIO5 — General-purpose I/O 5 |
| دبوس 135 | GPIO6 — General-purpose I/O 6 |
| دبوس 136 | GPIO7 — General-purpose I/O 7 |
| دبوس 137 | GPIO8 — General-purpose I/O 8 |
| دبوس 138 | GPIO9 — General-purpose I/O 9 |
| دبوس 139 | GPIO10 — General-purpose I/O 10 |
| دبوس 140 | GPIO11 — General-purpose I/O 11 |
| دبوس 141 | VDD — Core supply (3.3 V) |
| دبوس 142 | VSS — Ground |
| دبوس 143 | NC — Not connected (per datasheet) |
| دبوس 144 | NC — Not connected (per datasheet) |
التطبيقات النموذجية
SCF5250AG120 مناسب لـ 6 التطبيقs: Portable MP3/WMA Audio Player Decoder, Automotive CD/HDD Head-Unit System Controller, Industrial HMI Control Panel, Networked Audio Streaming Appliance, General-Purpose Embedded System Controller, USB Peripheral Audio Interface.
Portable MP3/WMA Audio Player Decoder
The SCF5250AG120's 120 MHz ColdFire V2 core plus enhanced multiplier-accumulator (eMAC) delivers over 107 Dhrystone MIPS - more than enough to software-decode MP3, WMA, and OggVorbis streams in real time without an external DSP. Designers pair the ROMless MPU with a small boot Flash and a DAC like the CS5531-ASZR or PCM4202. The integrated I2S/SSI ports feed audio data directly to the DAC while 128 KB of SRAM buffers frames. Compared to MCUs at the time, this is a true single-chip decoder plus system controller.
موصى به
Automotive CD/HDD Head-Unit System Controller
In automotive infotainment the SCF5250AG120 functions as the central head-unit controller, decoding compressed audio from CD or HDD media while running HMI and CAN/LIN glue logic. The eMAC sustains codec throughput while the three UARTs handle telematics, the USB 2.0 controller interfaces to media sticks, and the integrated 10/100 Ethernet MAC enables connected-car streaming. The 144-LQFP package with extended-temperature variant (SCF5250CAG120) suits under-dash thermal environments.
موصى به
Industrial HMI Control Panel
The SCF5250AG120's 57 GPIO lines, three UARTs, two SPIs, and 4-channel 32-bit timers make it well suited to industrial HMI panels driving small TFT displays and key matrices. The 120 MHz core runs control loops plus graphic rendering in software, removing the need for an external graphics controller. External 32-bit memory bus allows pairing with 8-32 MB of SDRAM for screen buffers and font caches. Designers add an opto-isolated UART for RS-485 fieldbus integration.
موصى به
Networked Audio Streaming Appliance
The integrated 10/100 Ethernet MAC, USB 2.0 host, and I2S/SSI audio interfaces let the SCF5250AG120 function as a network audio receiver for streaming MP3/WMA/OggVorbis content from a home network. The eMAC handles real-time decoding while the Ethernet MAC manages TCP/IP stacks. With 128 KB SRAM and an external SDRAM bus, the MPU can buffer multiple seconds of compressed audio and run a lightweight embedded web server for control.
موصى به
General-Purpose Embedded System Controller
With over 107 MIPS of processing power, the SCF5250AG120 serves as a general-purpose ColdFire V2 system controller for embedded products that need 32-bit performance without the cost of an external DSP. Use cases include motor control via PWM + ADC feedback, networked sensor aggregation, and protocol bridges. The ROMless architecture lets OEMs protect proprietary boot code in an encrypted external Flash. The 144-LQFP footprint supports hand-soldered prototypes and rework.
موصى به
USB Peripheral Audio Interface
The integrated USB 2.0 full-speed device/host controller and two I2S/SSI audio interfaces let the SCF5250AG120 act as a USB-to-I2S bridge, presenting a USB Audio Class device to a host PC while driving an external DAC. The ColdFire V2 core handles USB protocol stack and audio sample-rate conversion in software. With 128 KB SRAM, the MPU can buffer at least one full USB microframe at 48 kHz/24-bit audio without dropping samples.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ SCF5250AG120 — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | SCF5250CAG120 | SCF5250CVM120 | SCF5250AFB120 | MCF5207CAG166 |
|---|---|---|---|---|---|
| Package | 144-LQFP (20x20 mm) | 144-LQFP - same | MAPBGA-196 - different | MAPBGA-196 - different | 144-LQFP - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core Clock | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 166 MHz (+38%) |
| On-chip SRAM | 128 KB | 128 KB | 128 KB | 128 KB | 16 KB (-88%) |
| Program Memory Type | ROMless | ROMless | ROMless | ROMless | ROMless |
| Ethernet MAC | 10/100 (eMAC) | 10/100 (eMAC) | 10/100 (eMAC) | 10/100 (eMAC) | 10/100 (FEC) |
| USB Controller | USB 2.0 FS device/host | USB 2.0 FS device/host | USB 2.0 FS device/host | USB 2.0 FS device/host | USB 2.0 FS device/host |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
أبرز الفروقات
- Largest on-chip SRAM in the SCF5250 family at 120 MHz (مقابلMCF5207CAG166)
- Enhanced multiplier-accumulator (eMAC) for software DSP (مقابلMCF5207CAG166)
- Most stocked 144-LQFP variant of the SCF5250 family (مقابلSCF5250CAG120)
ملاحظات التصميم
Estimated: the 144-LQFP package with 0.5 mm pitch requires 4-layer PCB routing with continuous ground plane beneath the device. The 32-bit external data bus plus 24-bit address bus plus SDRAM control signals (RAS/CAS/WE/CS) demand impedance-controlled traces (~50 ohm single-ended) and matched trace lengths within ±1 cm across the byte lanes to avoid bus skew at 120 MHz. Place 0.1 µF ceramic decoupling on every VDD/VSS pair with bulk 10 µF tantalum on the 3.3 V rail close to the package.
The BOOTMODE0/BOOTMODE1 pins must be pulled to the correct logic levels at reset - selecting the wrong boot source will leave the ROMless SCF5250AG120 executing from a non-existent memory region and appearing 'dead'. Confirm both the boot mode and the external Flash chip-select mapping (CS0) before first power-up. Also verify the JTAG TRST pin is asserted at power-up to put the TAP controller in a known state; a floating TRST can prevent boundary-scan debug.
The USB 2.0 D+/D- pair and the 10/100 Ethernet differential pairs must be routed as 90 ohm differential traces with ground reference on the layer immediately below. Keep the USB DP/DM trace length matched within 150 mil and series-terminate close to the SCF5250AG120 pins. The Ethernet TX/RX pairs require an isolation transformer with center tap; reference the manufacturer reference design for the recommended magnetics part number.
Estimated: the 144-LQFP package has typical theta-JA around 35-40 C/W on a 4-layer JEDEC test board with 1 oz copper. At 120 MHz core clock with 3.3 V supply drawing ~250 mA, total power dissipation is roughly 0.8 W and junction rise above ambient is approximately 30-35 C. Industrial-temperature designs should still verify with a thermal probe at maximum ambient because closed enclosures can compound the rise.
معلومات الامتثال
RoHS, REACH, lead-free, and halogen-free status for the SCF5250AG120 are not stated in the available distributor data. Per the Freescale/NXP datasheet the part is not AEC-Q100 qualified; the AG120 designation indicates standard commercial temperature. Lot-level compliance must be confirmed via the manufacturer CoC or distributor documentation before automotive or medical use.
