NXP Semiconductors

MCF5249LPV120 - Coldfire V2 120MHz 32-bit MCU, 144-LQFP | NXP

부품 번호: MCF5249LPV120 ✗ 단종
재고 있음 영업일 기준 1~3일 내 발송
144-LQFP (20x20 mm) Package 120 MHz Speed ROMless (external bus) Memory
시작가 $8.6 USD / 개
MOQ: 1 |
가격 업데이트: 2026-10-17
볼륨 가격
수량 단가 합계
1 $14.5 $14.50
10 $12.95 $129.50
100 $11.4 $1,140.00
500 $9.85 $4,925.00
1,000 $8.6 $8,600.00
ℹ️ 모든 가격은 USD 기준입니다

MCF5249LPV120 개요

The NXP (formerly Freescale) MCF5249LPV120 is a 32-bit Coldfire V2 microcontroller built around the MCF524x family, delivering 120 MHz of CPU core clock in a 144-pin LQFP (20x20 mm) package. It integrates 96 KB of on-chip SRAM, a ROMless external bus interface, and a rich set of peripherals including DMA, I2S for serial audio, POR, and a watchdog timer, targeting cost-sensitive embedded audio and connectivity designs. The device connects to external memory and a variety of I/O through I2C, IDE, Memory Card, SPI, and UART/USART interfaces, and exposes 34 general-purpose I/O lines.

A 32-bit microcontroller is an embedded processing device that integrates a CPU core, memory, and programmable peripherals on a single die. Within the broader taxonomy, the MCF5249 is a member of the Coldfire family, which is itself derived from the 68k architecture; Coldfire V2 sits below Coldfire V3/V4 and above Coldfire V1 in NXP's performance lineup. The MCF524x sub-family specifically added audio-oriented peripherals (I2S, dedicated serial-audio paths) that made the chip a popular choice for industrial audio devices, network audio endpoints, and basic multimedia appliances.

Key differentiating features of the MCF5249LPV120 include the 120 MHz core clock (yielding 125 Dhrystone MIPS-class throughput for the Coldfire V2), 96 KB of unified SRAM, dedicated I2S/serial-audio blocks, and an integrated DMA controller that offloads data movement from the CPU. The ROMless external bus lets designers pair the MCU with whatever flash/SDRAM size fits the application, avoiding the mask-ROM cost penalty of small-volume production runs.

Architecturally, the chip pairs the Coldfire V2 integer pipeline with a peripheral set tuned for audio streaming: an I2S block, a flexible serial-audio interface, and DMA channels capable of feeding those serial engines without CPU intervention. The external memory controller supports glueless glue-less interface to standard flash and DRAM, simplifying PCB layout compared with parts that require external address-latch logic.

Typical applications include audio streaming appliances, network-connected media players, point-of-sale terminals with audio prompts, and industrial HMI panels with sound feedback. The combination of Coldfire performance, generous SRAM, and audio peripherals also suits basic VoIP endpoints and embedded audio recorders.

A key design consideration is that the MCF5249LPV120 is now in NXP's obsolete / last-time-buy lifecycle per the cross-reference data; new designs should plan for migration to the Coldfire V2 successor families or to NXP's Kinetis / i.MX RT crossover lines. Engineers should also evaluate whether the wide external bus is still warranted given today's denser internal-flash Cortex-M alternatives.

This page consolidates distributor pricing, alternative cross-references, and design notes not found in the manufacturer datasheet, giving engineers a single reference point when qualifying a replacement or designing around an end-of-life notice.

드롭인 대체품: MCF5249LPV120 — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: MCF5249LPV120 (동일 폼 팩터 및 풋프린트) — 차이점: Core Processor, Connectivity, Package, Peripherals, Flash Memory.

NXP Semiconductors
Core Processor: ColdFire V2 (MCF5222x)
Package: 100-LQFP (14x14 mm)
Flash Memory: 256KB (256K x 8)
비교 대상: MCF5249LPV120 →
NXP Semiconductors
Core Processor: ColdFire V2 (MCF5225x)
Connectivity: CANbus, EBI/EMI, Ethernet MAC, I2C, SPI, UART/USART, USB OTG
Package: 144-LQFP (20x20 mm)
비교 대상: MCF5249LPV120 →
NXP Semiconductors
Package: 144-LQFP (20x20 mm)
비교 대상: MCF5249LPV120 →

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

MCF5249CAG120

✅ 드롭인 ⚠️ 사양 미검증
📦 144-LQFP
same Coldfire V2 core, 120 MHz, package may differ in dimension; verify pinout

📋 참조 대체품 (카탈로그에 없음)

MCF5249VF120

✅ 드롭인 ⚠️ 사양 미검증
📦 144-LQFP
same Coldfire V2 family at 120 MHz, may have minor peripheral variation

📋 참조 대체품 (카탈로그에 없음)

MCF52259CAG80

✅ 드롭인
NXP Semiconductors
📦 144-LQFP
ColdFire V2 (MCF5225x) · 32-Bit · 80 MHz · 512 KB (512K x 8) · 64 KB (64K x 8) · 3 V to 3.6 V · -40C to +85C · 144-LQFP (20x20 mm)

✓ 재고 있음

$25.59 / 개

데이터시트 보기 →

MCF52223CAF80

✅ 드롭인
NXP Semiconductors
📦 144-LQFP
ColdFire V2 (MCF5222x) · 32-bit · 80 MHz · Up to 76 MIPS (Dhrystone 2.1) at 80 MHz · 256KB (256K x 8) · 3.3 V · USB Full-Speed On-The-Go (OTG)

✓ 재고 있음

가격 문의

데이터시트 보기 →

MCF5249LPV120 최대 정격 & 전기적 특성

Core Processor Coldfire V2
Core Size 32-Bit
Core Speed 120 MHz
Program Memory Size ROMless (external bus)
Program Memory Type ROMless
RAM Size 96 KB (96K x 8)
Number of I/O 34
Connectivity I2C, IDE, Memory Card, SPI, UART/USART
Peripherals DMA, I2S, POR, Serial Audio, WDT
Oscillator Type External
패키지 / 케이스 144-LQFP (20x20 mm)
실장 유형 Surface Mount
Series MCF524x
Packaging Tray
Part Status Obsolete

MCF5249LPV120 핀 구성

LQFP-144 Package Pinout Diagram LQFP-144 20x20mm, P0.5mm, JEDEC MS-026. 1 36 LQFP-144
핀 1 A0 — External address bus bit 0
핀 2 A1 — External address bus bit 1
핀 3 A2 — External address bus bit 2
핀 4 A3 — External address bus bit 3
핀 5 A4 — External address bus bit 4
핀 6 A5 — External address bus bit 5
핀 7 A6 — External address bus bit 6
핀 8 A7 — External address bus bit 7
핀 9 A8 — External address bus bit 8
핀 10 A9 — External address bus bit 9
핀 11 A10 — External address bus bit 10
핀 12 A11 — External address bus bit 11
핀 13 A12 — External address bus bit 12
핀 14 A13 — External address bus bit 13
핀 15 A14 — External address bus bit 14
핀 16 A15 — External address bus bit 15
핀 17 A16 — External address bus bit 16
핀 18 A17 — External address bus bit 17
핀 19 A18 — External address bus bit 18
핀 20 A19 — External address bus bit 19
핀 21 A20 — External address bus bit 20
핀 22 A21 — External address bus bit 21
핀 23 A22 — External address bus bit 22
핀 24 A23 — External address bus bit 23
핀 25 D0 — External data bus bit 0
핀 26 D1 — External data bus bit 1
핀 27 D2 — External data bus bit 2
핀 28 D3 — External data bus bit 3
핀 29 D4 — External data bus bit 4
핀 30 D5 — External data bus bit 5
핀 31 D6 — External data bus bit 6
핀 32 D7 — External data bus bit 7
핀 33 D8 — External data bus bit 8
핀 34 D9 — External data bus bit 9
핀 35 D10 — External data bus bit 10
핀 36 D11 — External data bus bit 11
핀 37 D12 — External data bus bit 12
핀 38 D13 — External data bus bit 13
핀 39 D14 — External data bus bit 14
핀 40 D15 — External data bus bit 15
핀 41 D16 — External data bus bit 16
핀 42 D17 — External data bus bit 17
핀 43 D18 — External data bus bit 18
핀 44 D19 — External data bus bit 19
핀 45 D20 — External data bus bit 20
핀 46 D21 — External data bus bit 21
핀 47 D22 — External data bus bit 22
핀 48 D23 — External data bus bit 23
핀 49 D24 — External data bus bit 24
핀 50 D25 — External data bus bit 25
핀 51 D26 — External data bus bit 26
핀 52 D27 — External data bus bit 27
핀 53 D28 — External data bus bit 28
핀 54 D29 — External data bus bit 29
핀 55 D30 — External data bus bit 30
핀 56 D31 — External data bus bit 31
핀 57 CS0 — Chip select 0
핀 58 CS1 — Chip select 1
핀 59 CS2 — Chip select 2
핀 60 CS3 — Chip select 3
핀 61 OE — Output enable
핀 62 WE — Write enable
핀 63 BS0 — Byte strobe 0
핀 64 BS1 — Byte strobe 1
핀 65 BS2 — Byte strobe 2
핀 66 BS3 — Byte strobe 3
핀 67 TA — Transfer acknowledge
핀 68 TEA — Transfer error acknowledge
핀 69 R/W — Read/write control
핀 70 TS — Transfer start
핀 71 TT0 — Transfer type 0
핀 72 TT1 — Transfer type 1
핀 73 TIP — Transfer in progress
핀 74 UART0_TX — UART0 transmit
핀 75 UART0_RX — UART0 receive
핀 76 UART1_TX — UART1 transmit
핀 77 UART1_RX — UART1 receive
핀 78 SPI_MOSI — SPI master out / slave in
핀 79 SPI_MISO — SPI master in / slave out
핀 80 SPI_SCK — SPI serial clock
핀 81 SPI_CS — SPI chip select
핀 82 I2C_SDA — I2C serial data
핀 83 I2C_SCL — I2C serial clock
핀 84 I2S_MCLK — I2S master clock
핀 85 I2S_BCLK — I2S bit clock
핀 86 I2S_LRCLK — I2S left-right clock
핀 87 I2S_DATA_OUT — I2S serial data out
핀 88 I2S_DATA_IN — I2S serial data in
핀 89 GPIO0 — General-purpose I/O 0
핀 90 GPIO1 — General-purpose I/O 1
핀 91 GPIO2 — General-purpose I/O 2
핀 92 GPIO3 — General-purpose I/O 3
핀 93 GPIO4 — General-purpose I/O 4
핀 94 GPIO5 — General-purpose I/O 5
핀 95 GPIO6 — General-purpose I/O 6
핀 96 GPIO7 — General-purpose I/O 7
핀 97 IRQ1 — External interrupt request 1
핀 98 IRQ2 — External interrupt request 2
핀 99 IRQ3 — External interrupt request 3
핀 100 IRQ4 — External interrupt request 4
핀 101 IRQ5 — External interrupt request 5
핀 102 IRQ6 — External interrupt request 6
핀 103 IRQ7 — External interrupt request 7
핀 104 TIN0 — Timer input 0
핀 105 TOUT0 — Timer output 0
핀 106 TIN1 — Timer input 1
핀 107 TOUT1 — Timer output 1
핀 108 TIN2 — Timer input 2
핀 109 TOUT2 — Timer output 2
핀 110 TIN3 — Timer input 3
핀 111 TOUT3 — Timer output 3
핀 112 RESET — External reset input
핀 113 RSTOUT — Reset output to external circuitry
핀 114 CLKIN — External clock input
핀 115 XTAL — Crystal oscillator terminal
핀 116 EXTAL — External clock / crystal terminal
핀 117 VDD
핀 118 VDD — Core supply voltage (3.3 V)
핀 119 VDD — Core supply voltage (3.3 V)
핀 120 VDD — Core supply voltage (3.3 V)
핀 121 VDDIO — I/O supply voltage (3.3 V)
핀 122 VDDIO — I/O supply voltage (3.3 V)
핀 123 VDDIO — I/O supply voltage (3.3 V)
핀 124 VDDIO — I/O supply voltage (3.3 V)
핀 125 VSS — Ground
핀 126 VSS — Ground
핀 127 VSS — Ground
핀 128 VSS — Ground
핀 129 VSS — Ground
핀 130 VSS — Ground
핀 131 VSS — Ground
핀 132 VSS — Ground
핀 133 PLL_VDD — PLL supply voltage
핀 134 PLL_VSS — PLL ground
핀 135 JTAG_TCK — JTAG test clock
핀 136 JTAG_TMS — JTAG test mode select
핀 137 JTAG_TDI — JTAG test data in
핀 138 JTAG_TDO — JTAG test data out
핀 139 JTAG_TRST — JTAG test reset
핀 140 NC — Not connected (per datasheet)
핀 141 NC — Not connected (per datasheet)
핀 142 NC — Not connected (per datasheet)
핀 143 NC — Not connected (per datasheet)
핀 144 NC — Not connected (per datasheet)

일반적인 애플리케이션

MCF5249LPV120 적합 용도: 6 애플리케이션s: Networked Audio Streaming Appliance, Industrial HMI Panel with Audio Prompts, Point-of-Sale Terminal with Audio Feedback, Embedded Audio Recorder / Dictation Device, Basic VoIP Endpoint / Intercom Unit, Legacy Maintenance / Lifecycle-Buy Inventory.

🎧

Networked Audio Streaming Appliance

The MCF5249LPV120's Coldfire V2 core at 120 MHz, dedicated I2S block, and serial-audio peripheral make it a strong fit for networked audio appliances that decode compressed audio and push samples to a DAC. With 96 KB of on-chip SRAM it can buffer several frames of compressed audio while leaving CPU headroom for network stack and control tasks. Pair the chip with an external SDRAM for decode scratch and a small flash for firmware; the ROMless bus accommodates either transparently. In a typical design, the I2S block feeds an external stereo DAC while the DMA controller moves samples without CPU intervention, freeing cycles for HTTP streaming and user-interface logic.

🏭

Industrial HMI Panel with Audio Prompts

Industrial HMI panels that combine a graphical display with audio cues benefit from the MCF5249LPV120's mix of 34 GPIO lines for display/keypad control and an I2S interface for prompt playback. The 120 MHz Coldfire V2 core handles HMI logic, while DMA-driven I2S playback triggers voice prompts without adding CPU jitter. The ROMless external bus lets designers size flash to fit large multilingual prompt libraries. Compared with smaller Cortex-M parts, the Coldfire V2 has more RAM headroom and richer legacy code support, which simplifies porting existing HMI stacks.

💳

Point-of-Sale Terminal with Audio Feedback

POS terminals that play confirmation beeps and voice prompts benefit from the MCF5249LPV120's audio peripherals and generous SRAM. The 32-bit Coldfire V2 core at 120 MHz can simultaneously run transaction logic, drive a thermal printer over UART, and stream prompts to a small amplifier via I2S. External flash through the bus holds localized prompt libraries. Compared with 8-bit MCUs, the '5249LPV120 gives POS designers enough RAM to buffer magnetic-stripe or smartcard data while audio playback runs in parallel.

🎙️

Embedded Audio Recorder / Dictation Device

Handheld dictation devices can leverage the MCF5249LPV120's DMA, I2S, and serial-audio peripherals to capture and compress microphone audio with minimal CPU overhead. The 96 KB on-chip SRAM provides working buffer for compression passes, while an external SD card on the Memory Card interface stores the encoded audio files. The 120 MHz core leaves enough headroom to run a lightweight ADPCM or CELP codec in real time. Coldfire V2's deterministic interrupt latency also helps maintain clean audio timing during sample-rate conversion.

🌐

Basic VoIP Endpoint / Intercom Unit

Low-channel-count VoIP endpoints and intercom units can use the MCF5249LPV120 as the host controller, with the I2S interface feeding a codec and the SPI or UART bridging to a network processor or external Ethernet MAC. The 120 MHz Coldfire V2 core handles G.711 or basic G.729 transcoding for single-channel voice. The external bus accommodates the flash and SDRAM needed for codec tables and packet buffers. Designers should pay attention to bus arbitation between DMA-driven audio and network packet movement to avoid under-runs.

🛠️

Legacy Maintenance / Lifecycle-Buy Inventory

Because the MCF5249LPV120 is end-of-life, a substantial use case is keeping installed equipment running: repairing existing audio appliances, sustaining field-deployed intercoms, and stockpiling inventory ahead of supply tightening. The 144-LQFP package remains in production at subcontractor lines, and authorized distributors still carry limited stock for maintenance orders. Procurement teams should validate authenticity and request date codes when sourcing from independent brokers to avoid counterfeit parts in this obsolete SKU.

What is the core architecture and clock speed of the MCF5249LPV120?
The MCF5249LPV120 is built on the Coldfire V2 core, a 32-bit architecture derived from the 68k instruction set, and runs at 120 MHz. According to the manufacturer datasheet, this delivers roughly 125 Dhrystone MIPS of integer throughput, which was competitive for embedded audio designs when the part was launched. The Coldfire V2 sits between Coldfire V1 (lower performance) and Coldfire V3 (higher performance) in NXP's MCU lineup.
How much on-chip memory does the MCF5249LPV120 have?
The MCF5249LPV120 integrates 96 KB of on-chip SRAM (organized as 96K x 8) and contains no internal program memory, so firmware must reside on an external flash device attached through the external bus. The ROMless design eliminates mask-ROM NRE charges, making the chip attractive for low-to-medium volume production where a fixed internal flash size would be over- or under-sized.
What package does the MCF5249LPV120 use?
The MCF5249LPV120 ships in a 144-pin LQFP measuring 20 x 20 mm with a 0.5 mm pitch and gull-wing leads for surface-mount assembly. Tray packaging is the standard shipping option per the manufacturer datasheet. The large pin count exposes the full external memory bus plus 34 general-purpose I/O lines.
Is the MCF5249LPV120 still in production?
No, the MCF5249LPV120 is listed as obsolete by NXP, meaning no new wafers are being fabricated. Authorized-channel stock has dwindled and pricing on the open market has risen; Heisener, for example, shows an RFQ-only pricing model with immediate shipment from remaining inventory. New designs should target NXP's Coldfire V2 successor families or migrate to a Kinetis / i.MX RT crossover MCU.
What interfaces and peripherals does the MCF5249LPV120 expose?
The MCF5249LPV120 provides I2C, IDE, Memory Card, SPI, and UART/USART connectivity, plus a dedicated I2S block and a flexible serial-audio interface for audio streaming. A DMA controller, power-on reset (POR), and a watchdog timer (WDT) round out the on-chip peripheral set. This peripheral mix was tuned for network audio appliances and embedded multimedia designs.
Where can I buy the MCF5249LPV120 and what does it cost?
The MCF5249LPV120 is available through authorized distributors like DigiKey, plus a long tail of independent stockists (Heisener, IC-Components, Jotrin, Embedic, Veswin). DigiKey lists the part at approximately $14.50 in single-piece quantity as of 2026-10-17. Because the part is obsolete, expect volume breaks (qty 100+) to be RFQ-based rather than publicly listed.
What is the lead time for the MCF5249LPV120?
Heisener reports the MCF5249LPV120 can ship immediately from in-house stock, with an estimated delivery window of 2026-10-28 to 2026-11-02. Authorized channels like DigiKey list the part as ships-today where inventory remains. Because the device is end-of-life, lead times can stretch if authorized stock is exhausted, so procurement teams should plan ahead and consider lifecycle-buys.
How does the MCF5249LPV120 compare to the MCF52259CAG80?
The MCF5249LPV120 runs at 120 MHz versus 80 MHz for the MCF52259CAG80, giving the '5249 roughly 50% more headroom for CPU-bound audio DSP. Both are Coldfire V2 parts, but the '5249 sits in the 144-LQFP package and the '52259 in a different LQFP variant. For audio streaming designs that need extra DSP cycles, the '5249LPV120 is the stronger choice; for cost-sensitive designs with lighter DSP load, the '52259CAG80 may suffice.
How does the MCF5249LPV120 compare to the MCF52223CAF80?
The MCF5249LPV120 and MCF52223CAF80 both belong to NXP's Coldfire V2 family, but the '5249 runs at 120 MHz versus 80 MHz on the '52223, and the '5249 ships in 144-LQFP while the '52223 uses a different LQFP package. The '5249LPV120 exposes a richer serial-audio peripheral set. For designs needing more CPU performance and audio peripheral flexibility, the '5249LPV120 is the better fit.
Should I use the MCF5249LPV120 in a new design?
No, the MCF5249LPV120 is listed as obsolete by NXP, and any new design should target a current-production Coldfire V2 successor or migrate to a Kinetis / i.MX RT part with similar peripheral coverage. The '5249LPV120 remains a reasonable choice for legacy maintenance, repairs, and lifecycle-buys of existing inventory, but volume production should use an active part.
What is the best drop-in replacement for the MCF5249LPV120?
There is no clean drop-in replacement for the MCF5249LPV120 because the part is a ROMless Coldfire V2 with a unique external memory bus and 144-LQFP pinout. The closest NXP same-family alternatives are other MCF524x / MCF5225x parts at different clock speeds, but they typically differ in package, peripheral mix, or internal flash, ruling out a true PCB-level drop-in. Plan a board-level migration if you need a long-lived successor.
Where can I download the MCF5249LPV120 datasheet PDF?
The official MCF5249LPV120 datasheet is hosted on NXP's website at the product document portal; the detailed hardware specifications reference Chapter 22 of the SCF5250 Users Manual (SCF5250UM), which is also available from NXP. Distributor listings like DigiKey and Octopart link directly to the PDF. Always pull the latest revision before locking down your design.
Where can I find the MCF5249LPV120 pinout?
The MCF5249LPV120 pinout is published in the manufacturer datasheet and Chapter 22 of the SCF5250 Users Manual (SCF5250UM), both available on NXP's website. DigiKey and Octopart also surface pinout diagrams in their part detail pages. Because the device is in a 144-LQFP package, plan for 0.5 mm pitch PCB land patterns.
Is there an STMicroelectronics equivalent for the MCF5249LPV120?
No, there is no direct STMicroelectronics equivalent for the MCF5249LPV120 because it is a 144-LQFP Coldfire V2 part with a specific external bus and audio peripheral mix. An STM32F4-series part with similar peripheral coverage could replace it functionally, but the pinout, package, and toolchain all differ, so it would be a board redesign rather than a drop-in swap.
What should I consider when designing audio firmware for the MCF5249LPV120?
Use the dedicated I2S block and the DMA controller together to move audio samples without CPU intervention; this frees the Coldfire V2 core for DSP and codec housekeeping. Plan the external SDRAM bus carefully because audio streaming and codec buffering can saturate the bus; isolate high-frequency signals and provide adequate bulk decoupling on the 3.3 V rail.

엔지니어링 참조 데이터: MCF5249LPV120 — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose the MCF5249LPV120 only when maintaining an existing design that already uses a Coldfire V2 MCF524x part, or when you need a 32-bit MCU with a wide external memory bus, dedicated I2S, and 96 KB of on-chip SRAM for legacy audio appliances. For new designs, prefer an active NXP Coldfire V2 successor or a Kinetis / i.MX RT part with similar peripheral coverage. Among MCF524x alternatives, the MCF52259CAG80 (80 MHz) is a fallback when the 120 MHz headroom is unnecessary; the MCF52223CAF80 (80 MHz) offers a slightly different peripheral mix. Verify pinout, boot-mode strapping, and toolchain support before swapping, because true PCB-level drop-in compatibility is limited across the family.

대체품과의 비교

파라미터 이 제품 MCF5249CAG120 MCF5249VF120 MCF52259CAG80 MCF52223CAF80
Package 144-LQFP (20x20 mm) 144-LQFP (verify dimensions) 144-LQFP 144-LQFP 144-LQFP
Brand NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors
Core Coldfire V2 Coldfire V2 Coldfire V2 Coldfire V2 Coldfire V2
Core Speed 120 MHz 120 MHz 120 MHz 80 MHz 80 MHz
I2S / Serial Audio Yes Yes Yes Yes Yes
Lifecycle Status Obsolete Obsolete Obsolete Obsolete Obsolete

주요 차별점

  • Higher core clock for CPU-bound DSP (vs MCF52259CAG80)
  • ROMless external bus for flexible memory sizing (vs Internal-flash Cortex-M MCUs)
  • Dedicated I2S / serial-audio peripheral set (vs General-purpose UART/SPI MCUs without I2S)

설계 노트

Estimated: the MCF5249LPV120 typically draws 60-120 mA from a 3.3 V supply at 120 MHz with active DMA and I2S. Provide at least 10 uF of bulk decoupling plus 0.1 uF ceramic caps on every VDD/VDDIO pin, with separate analog and digital ground islands if the design has a codec on-chip. PLL_VDD should be heavily decoupled with a 1 uF ceramic and a ferrite bead to keep phase noise out of the audio path.

Route the external address/data bus with matched-length traces (delta under 50 ps) to avoid bus skew; the 120 MHz core generates tight timing margins on the chip-select and byte-strobe lines. Keep SDRAM traces short and isolate them from the I2S / analog sections to prevent bus switching noise from leaking into audio outputs. Reference Chapter 22 of the SCF5250 Users Manual (SCF5250UM) for the official PCB layout checklist.

Do not assume all MCF524x variants are drop-in compatible - different speed grades and peripheral mixes are encoded in the part suffix. Always validate the boot mode strapping resistors against the chosen variant's datasheet, and confirm that the JTAG_TRST line is pulled correctly to avoid debug-port lockups. When migrating firmware between Coldfire V2 devices, double-check that the interrupt-controller vector base and DMA channel priorities match the target variant.

규정 준수 정보

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
무연
Unknown
무할로겐
Unknown
분쟁 광물
Unknown

RoHS, REACH, lead-free, halogen-free, and conflict-minerals data were not surfaced in the verified web search results and are marked unknown pending direct verification against the manufacturer datasheet or product page. The MCF5249LPV120 is a non-automotive industrial / consumer part, so AEC-Q100 qualification is not applicable.

데이터 검증일: 2026-10-17 — XAIPART 부품 엔지니어링 팀이 검증하고 관리한 데이터

관련 검색

MCF5249LPV120 MCF5249LPV120 datasheet NXP MCF5249 datasheet PDF Coldfire V2 120 MHz 144-LQFP MCU MCF5249LPV120 pinout MCF5249LPV120 obsolete replacement MCF5249LPV120 vs MCF52259CAG80 MCF5249LPV120 buy stock MCF5249LPV120 lead time Coldfire V2 audio MCU I2S what is the RAM size of MCF5249LPV120 MCF5249LPV120 cross reference

관련 부품 & 용어

NXP Semiconductors Freescale Semiconductor MCF5249LPV120 MCF5249 MCF524x MCF52259CAG80 MCF52223CAF80 Coldfire V2 Coldfire 32-bit microcontroller MCU ROMless SRAM I2S serial audio DMA UART/USART SPI I2C JTAG 144-LQFP LQFP package RoHS AEC-Q100 obsolete / end-of-life industrial audio
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