SCF5250AG120 - 120MHz ColdFire V2 32-bit MPU | NXP/Freescale
N.º da peça: SCF5250AG120 ✗ Fim de vida| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $28.5 | $28,50 |
| 10 | $24.2 | $242,00 |
| 100 | $19.8 | $1.980,00 |
| 500 | $17.4 | $8.700,00 |
| 1.000 | $15.6 | $15.600,00 |
SCF5250AG120 Visão geral
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.
Alternativas drop-in para SCF5250AG120 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com SCF5250AG120 (mesmo formato e footprint) — diferindo em Program Memory Type.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
SCF5250CAG120
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MCF5207CAG166
✅ Drop-In✓ Em estoque
$9.75 / unidade
Ver ficha técnica →SCF5250AG120 Classificações máximas e características elétricas
| 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 |
| Encapsulamento | 144-LQFP (20x20 mm) |
Configuração de pinos do SCF5250AG120
| Pino 1 | VDD — Core supply (3.3 V) |
| Pino 2 | VSS — Ground |
| Pino 3 | A0 — External address bus bit 0 |
| Pino 4 | A1 — External address bus bit 1 |
| Pino 5 | A2 — External address bus bit 2 |
| Pino 6 | A3 — External address bus bit 3 |
| Pino 7 | A4 — External address bus bit 4 |
| Pino 8 | A5 — External address bus bit 5 |
| Pino 9 | A6 — External address bus bit 6 |
| Pino 10 | A7 — External address bus bit 7 |
| Pino 11 | A8 — External address bus bit 8 |
| Pino 12 | A9 — External address bus bit 9 |
| Pino 13 | A10 — External address bus bit 10 |
| Pino 14 | A11 — External address bus bit 11 |
| Pino 15 | A12 — External address bus bit 12 |
| Pino 16 | A13 — External address bus bit 13 |
| Pino 17 | A14 — External address bus bit 14 |
| Pino 18 | A15 — External address bus bit 15 |
| Pino 19 | A16 — External address bus bit 16 |
| Pino 20 | A17 — External address bus bit 17 |
| Pino 21 | A18 — External address bus bit 18 |
| Pino 22 | A19 — External address bus bit 19 |
| Pino 23 | A20 — External address bus bit 20 |
| Pino 24 | A21 — External address bus bit 21 |
| Pino 25 | A22 — External address bus bit 22 |
| Pino 26 | A23 — External address bus bit 23 |
| Pino 27 | D0 — External data bus bit 0 |
| Pino 28 | D1 — External data bus bit 1 |
| Pino 29 | D2 — External data bus bit 2 |
| Pino 30 | D3 — External data bus bit 3 |
| Pino 31 | D4 — External data bus bit 4 |
| Pino 32 | D5 — External data bus bit 5 |
| Pino 33 | D6 — External data bus bit 6 |
| Pino 34 | D7 — External data bus bit 7 |
| Pino 35 | D8 — External data bus bit 8 |
| Pino 36 | D9 — External data bus bit 9 |
| Pino 37 | D10 — External data bus bit 10 |
| Pino 38 | D11 — External data bus bit 11 |
| Pino 39 | D12 — External data bus bit 12 |
| Pino 40 | D13 — External data bus bit 13 |
| Pino 41 | D14 — External data bus bit 14 |
| Pino 42 | D15 — External data bus bit 15 |
| Pino 43 | D16 — External data bus bit 16 |
| Pino 44 | D17 — External data bus bit 17 |
| Pino 45 | D18 — External data bus bit 18 |
| Pino 46 | D19 — External data bus bit 19 |
| Pino 47 | D20 — External data bus bit 20 |
| Pino 48 | D21 — External data bus bit 21 |
| Pino 49 | D22 — External data bus bit 22 |
| Pino 50 | D23 — External data bus bit 23 |
| Pino 51 | D24 — External data bus bit 24 |
| Pino 52 | D25 — External data bus bit 25 |
| Pino 53 | D26 — External data bus bit 26 |
| Pino 54 | D27 — External data bus bit 27 |
| Pino 55 | D28 — External data bus bit 28 |
| Pino 56 | D29 — External data bus bit 29 |
| Pino 57 | D30 — External data bus bit 30 |
| Pino 58 | D31 — External data bus bit 31 |
| Pino 59 | RAS — SDRAM row address strobe |
| Pino 60 | CAS — SDRAM column address strobe |
| Pino 61 | WE — SDRAM/Flash write enable |
| Pino 62 | OE — Output enable for external Flash/ROM |
| Pino 63 | CS0 — Chip select 0 (boot Flash/ROM) |
| Pino 64 | CS1 — Chip select 1 |
| Pino 65 | CS2 — Chip select 2 |
| Pino 66 | CS3 — Chip select 3 |
| Pino 67 | TXD0 — UART0 transmit |
| Pino 68 | RXD0 — UART0 receive |
| Pino 69 | TXD1 — UART1 transmit |
| Pino 70 | RXD1 — UART1 receive |
| Pino 71 | TXD2 — UART2 transmit |
| Pino 72 | RXD2 — UART2 receive |
| Pino 73 | MOSI0 — SPI0 master out / slave in |
| Pino 74 | MISO0 — SPI0 master in / slave out |
| Pino 75 | SCLK0 — SPI0 serial clock |
| Pino 76 | PCS0 — SPI0 peripheral chip select |
| Pino 77 | MOSI1 — SPI1 master out / slave in |
| Pino 78 | MISO1 — SPI1 master in / slave out |
| Pino 79 | SCLK1 — SPI1 serial clock |
| Pino 80 | PCS1 — SPI1 peripheral chip select |
| Pino 81 | STXD — SSI0 transmit data (I2S) |
| Pino 82 | SRXD — SSI0 receive data (I2S) |
| Pino 83 | SCLK_SSI0 — SSI0 bit clock |
| Pino 84 | FS_SSI0 — SSI0 frame sync (LRCLK) |
| Pino 85 | STXD1 — SSI1 transmit data (I2S) |
| Pino 86 | SRXD1 — SSI1 receive data (I2S) |
| Pino 87 | SCLK_SSI1 — SSI1 bit clock |
| Pino 88 | FS_SSI1 — SSI1 frame sync (LRCLK) |
| Pino 89 | USB_DP — USB 2.0 D+ |
| Pino 90 | USB_DM — USB 2.0 D- |
| Pino 91 | USB_VBUS — USB VBUS sense |
| Pino 92 | ETH_TX+ — Ethernet transmit positive |
| Pino 93 | ETH_TX- — Ethernet transmit negative |
| Pino 94 | ETH_RX+ — Ethernet receive positive |
| Pino 95 | ETH_RX- — Ethernet receive negative |
| Pino 96 | TIN0 — Timer0 input |
| Pino 97 | TOUT0 — Timer0 output |
| Pino 98 | TIN1 — Timer1 input |
| Pino 99 | TOUT1 — Timer1 output |
| Pino 100 | TIN2 — Timer2 input |
| Pino 101 | TOUT2 — Timer2 output |
| Pino 102 | TIN3 — Timer3 input |
| Pino 103 | TOUT3 — Timer3 output |
| Pino 104 | IRQ0 — External interrupt 0 |
| Pino 105 | IRQ1 — External interrupt 1 |
| Pino 106 | IRQ2 — External interrupt 2 |
| Pino 107 | IRQ3 — External interrupt 3 |
| Pino 108 | IRQ4 — External interrupt 4 |
| Pino 109 | IRQ5 — External interrupt 5 |
| Pino 110 | IRQ6 — External interrupt 6 |
| Pino 111 | IRQ7 — External interrupt 7 |
| Pino 112 | RESET — Active-low hardware reset |
| Pino 113 | RSTOUT — Reset output to external logic |
| Pino 114 | BOOTMODE0 — Boot mode select 0 |
| Pino 115 | BOOTMODE1 — Boot mode select 1 |
| Pino 116 | TEST — Test mode (tie low in normal operation) |
| Pino 117 | TCK — JTAG test clock |
| Pino 118 | TMS — JTAG test mode select |
| Pino 119 | TDI — JTAG test data in |
| Pino 120 | TDO — JTAG test data out |
| Pino 121 | TRST — JTAG test reset |
| Pino 122 | PLL_VDD — PLL analog supply |
| Pino 123 | PLL_VSS — PLL analog ground |
| Pino 124 | XTAL_IN — Crystal oscillator input |
| Pino 125 | XTAL_OUT — Crystal oscillator output |
| Pino 126 | CLKOUT — System clock output |
| Pino 127 | VDD — Core supply (3.3 V) |
| Pino 128 | VSS — Ground |
| Pino 129 | GPIO0 — General-purpose I/O 0 |
| Pino 130 | GPIO1 — General-purpose I/O 1 |
| Pino 131 | GPIO2 — General-purpose I/O 2 |
| Pino 132 | GPIO3 — General-purpose I/O 3 |
| Pino 133 | GPIO4 — General-purpose I/O 4 |
| Pino 134 | GPIO5 — General-purpose I/O 5 |
| Pino 135 | GPIO6 — General-purpose I/O 6 |
| Pino 136 | GPIO7 — General-purpose I/O 7 |
| Pino 137 | GPIO8 — General-purpose I/O 8 |
| Pino 138 | GPIO9 — General-purpose I/O 9 |
| Pino 139 | GPIO10 — General-purpose I/O 10 |
| Pino 140 | GPIO11 — General-purpose I/O 11 |
| Pino 141 | VDD — Core supply (3.3 V) |
| Pino 142 | VSS — Ground |
| Pino 143 | NC — Not connected (per datasheet) |
| Pino 144 | NC — Not connected (per datasheet) |
Aplicações típicas
SCF5250AG120 é adequado para 6 aplicaçãos: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para SCF5250AG120 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | 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 |
Principais diferenciais
- Largest on-chip SRAM in the SCF5250 family at 120 MHz (vs MCF5207CAG166)
- Enhanced multiplier-accumulator (eMAC) for software DSP (vs MCF5207CAG166)
- Most stocked 144-LQFP variant of the SCF5250 family (vs SCF5250CAG120)
Notas de projeto
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.
Informações de conformidade
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.
