SCF5250AG120 - 120MHz ColdFire V2 32-bit MPU | NXP/Freescale
MPN: SCF5250AG120 ✗ Cuối đờiSCF5250AG120 Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho SCF5250AG120 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với SCF5250AG120 (cùng hình factor và footprint) — khác nhau ở Program Memory Type.
SCF5250CAG120
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MCF5207CAG166
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →SCF5250AG120 Tỷ lệ tối đa & tính chất điện
| 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 |
| Hộp | 144-LQFP (20x20 mm) |
Cấu hình chân SCF5250AG120
| Chân 1 | VDD — Core supply (3.3 V) |
| Chân 2 | VSS — Ground |
| Chân 3 | A0 — External address bus bit 0 |
| Chân 4 | A1 — External address bus bit 1 |
| Chân 5 | A2 — External address bus bit 2 |
| Chân 6 | A3 — External address bus bit 3 |
| Chân 7 | A4 — External address bus bit 4 |
| Chân 8 | A5 — External address bus bit 5 |
| Chân 9 | A6 — External address bus bit 6 |
| Chân 10 | A7 — External address bus bit 7 |
| Chân 11 | A8 — External address bus bit 8 |
| Chân 12 | A9 — External address bus bit 9 |
| Chân 13 | A10 — External address bus bit 10 |
| Chân 14 | A11 — External address bus bit 11 |
| Chân 15 | A12 — External address bus bit 12 |
| Chân 16 | A13 — External address bus bit 13 |
| Chân 17 | A14 — External address bus bit 14 |
| Chân 18 | A15 — External address bus bit 15 |
| Chân 19 | A16 — External address bus bit 16 |
| Chân 20 | A17 — External address bus bit 17 |
| Chân 21 | A18 — External address bus bit 18 |
| Chân 22 | A19 — External address bus bit 19 |
| Chân 23 | A20 — External address bus bit 20 |
| Chân 24 | A21 — External address bus bit 21 |
| Chân 25 | A22 — External address bus bit 22 |
| Chân 26 | A23 — External address bus bit 23 |
| Chân 27 | D0 — External data bus bit 0 |
| Chân 28 | D1 — External data bus bit 1 |
| Chân 29 | D2 — External data bus bit 2 |
| Chân 30 | D3 — External data bus bit 3 |
| Chân 31 | D4 — External data bus bit 4 |
| Chân 32 | D5 — External data bus bit 5 |
| Chân 33 | D6 — External data bus bit 6 |
| Chân 34 | D7 — External data bus bit 7 |
| Chân 35 | D8 — External data bus bit 8 |
| Chân 36 | D9 — External data bus bit 9 |
| Chân 37 | D10 — External data bus bit 10 |
| Chân 38 | D11 — External data bus bit 11 |
| Chân 39 | D12 — External data bus bit 12 |
| Chân 40 | D13 — External data bus bit 13 |
| Chân 41 | D14 — External data bus bit 14 |
| Chân 42 | D15 — External data bus bit 15 |
| Chân 43 | D16 — External data bus bit 16 |
| Chân 44 | D17 — External data bus bit 17 |
| Chân 45 | D18 — External data bus bit 18 |
| Chân 46 | D19 — External data bus bit 19 |
| Chân 47 | D20 — External data bus bit 20 |
| Chân 48 | D21 — External data bus bit 21 |
| Chân 49 | D22 — External data bus bit 22 |
| Chân 50 | D23 — External data bus bit 23 |
| Chân 51 | D24 — External data bus bit 24 |
| Chân 52 | D25 — External data bus bit 25 |
| Chân 53 | D26 — External data bus bit 26 |
| Chân 54 | D27 — External data bus bit 27 |
| Chân 55 | D28 — External data bus bit 28 |
| Chân 56 | D29 — External data bus bit 29 |
| Chân 57 | D30 — External data bus bit 30 |
| Chân 58 | D31 — External data bus bit 31 |
| Chân 59 | RAS — SDRAM row address strobe |
| Chân 60 | CAS — SDRAM column address strobe |
| Chân 61 | WE — SDRAM/Flash write enable |
| Chân 62 | OE — Output enable for external Flash/ROM |
| Chân 63 | CS0 — Chip select 0 (boot Flash/ROM) |
| Chân 64 | CS1 — Chip select 1 |
| Chân 65 | CS2 — Chip select 2 |
| Chân 66 | CS3 — Chip select 3 |
| Chân 67 | TXD0 — UART0 transmit |
| Chân 68 | RXD0 — UART0 receive |
| Chân 69 | TXD1 — UART1 transmit |
| Chân 70 | RXD1 — UART1 receive |
| Chân 71 | TXD2 — UART2 transmit |
| Chân 72 | RXD2 — UART2 receive |
| Chân 73 | MOSI0 — SPI0 master out / slave in |
| Chân 74 | MISO0 — SPI0 master in / slave out |
| Chân 75 | SCLK0 — SPI0 serial clock |
| Chân 76 | PCS0 — SPI0 peripheral chip select |
| Chân 77 | MOSI1 — SPI1 master out / slave in |
| Chân 78 | MISO1 — SPI1 master in / slave out |
| Chân 79 | SCLK1 — SPI1 serial clock |
| Chân 80 | PCS1 — SPI1 peripheral chip select |
| Chân 81 | STXD — SSI0 transmit data (I2S) |
| Chân 82 | SRXD — SSI0 receive data (I2S) |
| Chân 83 | SCLK_SSI0 — SSI0 bit clock |
| Chân 84 | FS_SSI0 — SSI0 frame sync (LRCLK) |
| Chân 85 | STXD1 — SSI1 transmit data (I2S) |
| Chân 86 | SRXD1 — SSI1 receive data (I2S) |
| Chân 87 | SCLK_SSI1 — SSI1 bit clock |
| Chân 88 | FS_SSI1 — SSI1 frame sync (LRCLK) |
| Chân 89 | USB_DP — USB 2.0 D+ |
| Chân 90 | USB_DM — USB 2.0 D- |
| Chân 91 | USB_VBUS — USB VBUS sense |
| Chân 92 | ETH_TX+ — Ethernet transmit positive |
| Chân 93 | ETH_TX- — Ethernet transmit negative |
| Chân 94 | ETH_RX+ — Ethernet receive positive |
| Chân 95 | ETH_RX- — Ethernet receive negative |
| Chân 96 | TIN0 — Timer0 input |
| Chân 97 | TOUT0 — Timer0 output |
| Chân 98 | TIN1 — Timer1 input |
| Chân 99 | TOUT1 — Timer1 output |
| Chân 100 | TIN2 — Timer2 input |
| Chân 101 | TOUT2 — Timer2 output |
| Chân 102 | TIN3 — Timer3 input |
| Chân 103 | TOUT3 — Timer3 output |
| Chân 104 | IRQ0 — External interrupt 0 |
| Chân 105 | IRQ1 — External interrupt 1 |
| Chân 106 | IRQ2 — External interrupt 2 |
| Chân 107 | IRQ3 — External interrupt 3 |
| Chân 108 | IRQ4 — External interrupt 4 |
| Chân 109 | IRQ5 — External interrupt 5 |
| Chân 110 | IRQ6 — External interrupt 6 |
| Chân 111 | IRQ7 — External interrupt 7 |
| Chân 112 | RESET — Active-low hardware reset |
| Chân 113 | RSTOUT — Reset output to external logic |
| Chân 114 | BOOTMODE0 — Boot mode select 0 |
| Chân 115 | BOOTMODE1 — Boot mode select 1 |
| Chân 116 | TEST — Test mode (tie low in normal operation) |
| Chân 117 | TCK — JTAG test clock |
| Chân 118 | TMS — JTAG test mode select |
| Chân 119 | TDI — JTAG test data in |
| Chân 120 | TDO — JTAG test data out |
| Chân 121 | TRST — JTAG test reset |
| Chân 122 | PLL_VDD — PLL analog supply |
| Chân 123 | PLL_VSS — PLL analog ground |
| Chân 124 | XTAL_IN — Crystal oscillator input |
| Chân 125 | XTAL_OUT — Crystal oscillator output |
| Chân 126 | CLKOUT — System clock output |
| Chân 127 | VDD — Core supply (3.3 V) |
| Chân 128 | VSS — Ground |
| Chân 129 | GPIO0 — General-purpose I/O 0 |
| Chân 130 | GPIO1 — General-purpose I/O 1 |
| Chân 131 | GPIO2 — General-purpose I/O 2 |
| Chân 132 | GPIO3 — General-purpose I/O 3 |
| Chân 133 | GPIO4 — General-purpose I/O 4 |
| Chân 134 | GPIO5 — General-purpose I/O 5 |
| Chân 135 | GPIO6 — General-purpose I/O 6 |
| Chân 136 | GPIO7 — General-purpose I/O 7 |
| Chân 137 | GPIO8 — General-purpose I/O 8 |
| Chân 138 | GPIO9 — General-purpose I/O 9 |
| Chân 139 | GPIO10 — General-purpose I/O 10 |
| Chân 140 | GPIO11 — General-purpose I/O 11 |
| Chân 141 | VDD — Core supply (3.3 V) |
| Chân 142 | VSS — Ground |
| Chân 143 | NC — Not connected (per datasheet) |
| Chân 144 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
SCF5250AG120 phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho SCF5250AG120 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- Largest on-chip SRAM in the SCF5250 family at 120 MHz (vsMCF5207CAG166)
- Enhanced multiplier-accumulator (eMAC) for software DSP (vsMCF5207CAG166)
- Most stocked 144-LQFP variant of the SCF5250 family (vsSCF5250CAG120)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.
