SCF5250AG120 - 120MHz ColdFire V2 32-bit MPU | NXP/Freescale
MPN: SCF5250AG120 ✗ סוף ייצורSCF5250AG120 סקירה
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.
חלופות תחליף ישיר עבור SCF5250AG120 — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם SCF5250AG120 (אותו גורם צורה וטביעת רגל) — שונים ב Program Memory Type.
SCF5250CAG120
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
MCF5207CAG166
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←SCF5250AG120 דירוגים מרביים ומאפיינים חשמליים
| 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 |
| מארז | 144-LQFP (20x20 mm) |
תצורת פינים של SCF5250AG120
| פין 1 | VDD — Core supply (3.3 V) |
| פין 2 | VSS — Ground |
| פין 3 | A0 — External address bus bit 0 |
| פין 4 | A1 — External address bus bit 1 |
| פין 5 | A2 — External address bus bit 2 |
| פין 6 | A3 — External address bus bit 3 |
| פין 7 | A4 — External address bus bit 4 |
| פין 8 | A5 — External address bus bit 5 |
| פין 9 | A6 — External address bus bit 6 |
| פין 10 | A7 — External address bus bit 7 |
| פין 11 | A8 — External address bus bit 8 |
| פין 12 | A9 — External address bus bit 9 |
| פין 13 | A10 — External address bus bit 10 |
| פין 14 | A11 — External address bus bit 11 |
| פין 15 | A12 — External address bus bit 12 |
| פין 16 | A13 — External address bus bit 13 |
| פין 17 | A14 — External address bus bit 14 |
| פין 18 | A15 — External address bus bit 15 |
| פין 19 | A16 — External address bus bit 16 |
| פין 20 | A17 — External address bus bit 17 |
| פין 21 | A18 — External address bus bit 18 |
| פין 22 | A19 — External address bus bit 19 |
| פין 23 | A20 — External address bus bit 20 |
| פין 24 | A21 — External address bus bit 21 |
| פין 25 | A22 — External address bus bit 22 |
| פין 26 | A23 — External address bus bit 23 |
| פין 27 | D0 — External data bus bit 0 |
| פין 28 | D1 — External data bus bit 1 |
| פין 29 | D2 — External data bus bit 2 |
| פין 30 | D3 — External data bus bit 3 |
| פין 31 | D4 — External data bus bit 4 |
| פין 32 | D5 — External data bus bit 5 |
| פין 33 | D6 — External data bus bit 6 |
| פין 34 | D7 — External data bus bit 7 |
| פין 35 | D8 — External data bus bit 8 |
| פין 36 | D9 — External data bus bit 9 |
| פין 37 | D10 — External data bus bit 10 |
| פין 38 | D11 — External data bus bit 11 |
| פין 39 | D12 — External data bus bit 12 |
| פין 40 | D13 — External data bus bit 13 |
| פין 41 | D14 — External data bus bit 14 |
| פין 42 | D15 — External data bus bit 15 |
| פין 43 | D16 — External data bus bit 16 |
| פין 44 | D17 — External data bus bit 17 |
| פין 45 | D18 — External data bus bit 18 |
| פין 46 | D19 — External data bus bit 19 |
| פין 47 | D20 — External data bus bit 20 |
| פין 48 | D21 — External data bus bit 21 |
| פין 49 | D22 — External data bus bit 22 |
| פין 50 | D23 — External data bus bit 23 |
| פין 51 | D24 — External data bus bit 24 |
| פין 52 | D25 — External data bus bit 25 |
| פין 53 | D26 — External data bus bit 26 |
| פין 54 | D27 — External data bus bit 27 |
| פין 55 | D28 — External data bus bit 28 |
| פין 56 | D29 — External data bus bit 29 |
| פין 57 | D30 — External data bus bit 30 |
| פין 58 | D31 — External data bus bit 31 |
| פין 59 | RAS — SDRAM row address strobe |
| פין 60 | CAS — SDRAM column address strobe |
| פין 61 | WE — SDRAM/Flash write enable |
| פין 62 | OE — Output enable for external Flash/ROM |
| פין 63 | CS0 — Chip select 0 (boot Flash/ROM) |
| פין 64 | CS1 — Chip select 1 |
| פין 65 | CS2 — Chip select 2 |
| פין 66 | CS3 — Chip select 3 |
| פין 67 | TXD0 — UART0 transmit |
| פין 68 | RXD0 — UART0 receive |
| פין 69 | TXD1 — UART1 transmit |
| פין 70 | RXD1 — UART1 receive |
| פין 71 | TXD2 — UART2 transmit |
| פין 72 | RXD2 — UART2 receive |
| פין 73 | MOSI0 — SPI0 master out / slave in |
| פין 74 | MISO0 — SPI0 master in / slave out |
| פין 75 | SCLK0 — SPI0 serial clock |
| פין 76 | PCS0 — SPI0 peripheral chip select |
| פין 77 | MOSI1 — SPI1 master out / slave in |
| פין 78 | MISO1 — SPI1 master in / slave out |
| פין 79 | SCLK1 — SPI1 serial clock |
| פין 80 | PCS1 — SPI1 peripheral chip select |
| פין 81 | STXD — SSI0 transmit data (I2S) |
| פין 82 | SRXD — SSI0 receive data (I2S) |
| פין 83 | SCLK_SSI0 — SSI0 bit clock |
| פין 84 | FS_SSI0 — SSI0 frame sync (LRCLK) |
| פין 85 | STXD1 — SSI1 transmit data (I2S) |
| פין 86 | SRXD1 — SSI1 receive data (I2S) |
| פין 87 | SCLK_SSI1 — SSI1 bit clock |
| פין 88 | FS_SSI1 — SSI1 frame sync (LRCLK) |
| פין 89 | USB_DP — USB 2.0 D+ |
| פין 90 | USB_DM — USB 2.0 D- |
| פין 91 | USB_VBUS — USB VBUS sense |
| פין 92 | ETH_TX+ — Ethernet transmit positive |
| פין 93 | ETH_TX- — Ethernet transmit negative |
| פין 94 | ETH_RX+ — Ethernet receive positive |
| פין 95 | ETH_RX- — Ethernet receive negative |
| פין 96 | TIN0 — Timer0 input |
| פין 97 | TOUT0 — Timer0 output |
| פין 98 | TIN1 — Timer1 input |
| פין 99 | TOUT1 — Timer1 output |
| פין 100 | TIN2 — Timer2 input |
| פין 101 | TOUT2 — Timer2 output |
| פין 102 | TIN3 — Timer3 input |
| פין 103 | TOUT3 — Timer3 output |
| פין 104 | IRQ0 — External interrupt 0 |
| פין 105 | IRQ1 — External interrupt 1 |
| פין 106 | IRQ2 — External interrupt 2 |
| פין 107 | IRQ3 — External interrupt 3 |
| פין 108 | IRQ4 — External interrupt 4 |
| פין 109 | IRQ5 — External interrupt 5 |
| פין 110 | IRQ6 — External interrupt 6 |
| פין 111 | IRQ7 — External interrupt 7 |
| פין 112 | RESET — Active-low hardware reset |
| פין 113 | RSTOUT — Reset output to external logic |
| פין 114 | BOOTMODE0 — Boot mode select 0 |
| פין 115 | BOOTMODE1 — Boot mode select 1 |
| פין 116 | TEST — Test mode (tie low in normal operation) |
| פין 117 | TCK — JTAG test clock |
| פין 118 | TMS — JTAG test mode select |
| פין 119 | TDI — JTAG test data in |
| פין 120 | TDO — JTAG test data out |
| פין 121 | TRST — JTAG test reset |
| פין 122 | PLL_VDD — PLL analog supply |
| פין 123 | PLL_VSS — PLL analog ground |
| פין 124 | XTAL_IN — Crystal oscillator input |
| פין 125 | XTAL_OUT — Crystal oscillator output |
| פין 126 | CLKOUT — System clock output |
| פין 127 | VDD — Core supply (3.3 V) |
| פין 128 | VSS — Ground |
| פין 129 | GPIO0 — General-purpose I/O 0 |
| פין 130 | GPIO1 — General-purpose I/O 1 |
| פין 131 | GPIO2 — General-purpose I/O 2 |
| פין 132 | GPIO3 — General-purpose I/O 3 |
| פין 133 | GPIO4 — General-purpose I/O 4 |
| פין 134 | GPIO5 — General-purpose I/O 5 |
| פין 135 | GPIO6 — General-purpose I/O 6 |
| פין 136 | GPIO7 — General-purpose I/O 7 |
| פין 137 | GPIO8 — General-purpose I/O 8 |
| פין 138 | GPIO9 — General-purpose I/O 9 |
| פין 139 | GPIO10 — General-purpose I/O 10 |
| פין 140 | GPIO11 — General-purpose I/O 11 |
| פין 141 | VDD — Core supply (3.3 V) |
| פין 142 | VSS — Ground |
| פין 143 | NC — Not connected (per datasheet) |
| פין 144 | NC — Not connected (per datasheet) |
יישומים טיפוסיים
SCF5250AG120 מתאים עבור 6 יישוםs: 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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור SCF5250AG120 — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | 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 |
מבדילים עיקריים
- Largest on-chip SRAM in the SCF5250 family at 120 MHz (לעומתMCF5207CAG166)
- Enhanced multiplier-accumulator (eMAC) for software DSP (לעומתMCF5207CAG166)
- Most stocked 144-LQFP variant of the SCF5250 family (לעומתSCF5250CAG120)
הערות תכנון
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.
מידע על תאימות
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.
