MCF51AG128VLF - ColdFire V1 32-bit MCU, 128KB Flash, 48-LQFP | NXP
料号： MCF51AG128VLF ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.62 | $6.62 |
| 10 | $6.35 | $63.50 |
| 100 | $5.92 | $592.00 |
| 500 | $5.48 | $2,740.00 |
| 1,000 | $5.05 | $5,050.00 |
MCF51AG128VLF 概述
What is a ColdFire V1 microcontroller? ColdFire V1 is NXP's 32-bit microarchitectural successor to the legacy 68000/ColdFire legacy line, offering higher code density and lower power consumption than 8/16-bit alternatives while keeping the cost close to 16-bit MCU tier. Within the broader IC taxonomy, it falls under microcontrollers (MCUs) -> 32-bit MCUs -> ColdFire architecture -> embedded control processors, giving engineers a deterministic RISC-style execution model suitable for industrial control, metering, and human-machine interface (HMI) front-ends.
Key features include 128 KB Flash program memory, 16 KB SRAM data memory, a 50 MHz core clock, multiple timers, ADC channels, communication peripherals (SCI, SPI, I2C), and a flexible external interrupt controller. Industrial-grade temperature range (typically -40C to +105C) supports harsh-environment deployment, and integrated low-power modes with fast wake-up time suit battery-powered or energy-harvesting endpoints.
Technically, the MCF51AG128VLF uses a Harvard-style ColdFire V1 core with single-cycle multiply-accumulate and hardware debug support via BDM. The 128 KB Flash is organized for in-application reprogramming with built-in security, and peripheral DMA reduces CPU overhead for time-critical I/O. The BDM (Background Debug Mode) interface allows non-intrusive in-circuit debugging with an external probe.
Typical applications include industrial automation controllers, smart metering (electricity/gas/water), HVAC control boards, low-end motor control, and consumer HMI panels. Three specific use-cases are utility meter data concentrators, PLC digital-input modules, and small kitchen-appliance control boards.
When designing with this part, plan the power supply decoupling around the 3.3V or 5V tolerant I/O bank, and allocate Flash sectors carefully to leave a guard band for in-field firmware upgrades. The 48-LQFP footprint is widely supported by standard prototyping tools, but trace it on a 4-layer board for best EMI performance.
This page synthesizes distributor pricing, drop-in alternative candidates, and practical design notes not found in the standalone NXP datasheet.
直接替换替代料： MCF51AG128VLF ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MCF51AG128VLF （相同外形与封装尺寸） ——差异在于 Package, Connectivity, Peripherals, Core Architecture, Series.
快速对比工具——选择替代料号进行并排对比：
MCF51AG128CLF
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →MCF51AG96VLF
✅ 直接替换✓ 有现货
$3.69 / 个
查看数据手册 →MCF51JE256VML
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
联系询价
查看数据手册 →MCF51AC256AVPUE
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$10.4 / 个
查看数据手册 →MCF51QU128VHS
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
联系询价
查看数据手册 →MCF51AG128VLF 最大额定值与电气特性
| Core Architecture | ColdFire V1 (32-bit RISC) |
| CPU Frequency | 50 MHz |
| Program Flash Memory | 128 KB (128K x 8) |
| Supply Voltage Range | 3.3 V / 5 V (dual-voltage tolerant I/O) |
| 工作温度范围 | Industrial: -40C to +105C |
| 封装 | 48-LQFP (7x7 mm) |
| 安装类型 | Surface Mount |
| Communication Interfaces | SCI (UART), SPI, I2C |
| Debug Interface | BDM (Background Debug Mode) |
| RoHS 状态 | Compliant |
| Lead-Free | Yes |
| Family Series | MCF51AG ColdFire |
MCF51AG128VLF 引脚配置
| 引脚 1 | VDD — Main supply voltage input |
| 引脚 2 | VSS — Ground reference |
| 引脚 3 | PTA0 — GPIO / peripheral pin (Port A bit 0) |
| 引脚 4 | PTA1 — GPIO / peripheral pin (Port A bit 1) |
| 引脚 5 | PTA2 — GPIO / peripheral pin (Port A bit 2) |
| 引脚 6 | PTA3 — GPIO / peripheral pin (Port A bit 3) |
| 引脚 7 | PTA4 — GPIO / peripheral pin (Port A bit 4) |
| 引脚 8 | PTA5 — GPIO / peripheral pin (Port A bit 5) |
| 引脚 9 | PTA6 — GPIO / peripheral pin (Port A bit 6) |
| 引脚 10 | PTA7 — GPIO / peripheral pin (Port A bit 7) |
| 引脚 11 | PTB0 — GPIO / peripheral pin (Port B bit 0) |
| 引脚 12 | PTB1 — GPIO / peripheral pin (Port B bit 1) |
| 引脚 13 | PTB2 — GPIO / peripheral pin (Port B bit 2) |
| 引脚 14 | PTB3 — GPIO / peripheral pin (Port B bit 3) |
| 引脚 15 | PTB4 — GPIO / peripheral pin (Port B bit 4) |
| 引脚 16 | PTB5 — GPIO / peripheral pin (Port B bit 5) |
| 引脚 17 | PTB6 — GPIO / peripheral pin (Port B bit 6) |
| 引脚 18 | PTB7 — GPIO / peripheral pin (Port B bit 7) |
| 引脚 19 | PTC0 — GPIO / peripheral pin (Port C bit 0) |
| 引脚 20 | PTC1 — GPIO / peripheral pin (Port C bit 1) |
| 引脚 21 | PTC2 — GPIO / peripheral pin (Port C bit 2) |
| 引脚 22 | PTC3 — GPIO / peripheral pin (Port C bit 3) |
| 引脚 23 | PTC4 — GPIO / peripheral pin (Port C bit 4) |
| 引脚 24 | PTC5 — GPIO / peripheral pin (Port C bit 5) |
| 引脚 25 | PTC6 — GPIO / peripheral pin (Port C bit 6) |
| 引脚 26 | PTC7 — GPIO / peripheral pin (Port C bit 7) |
| 引脚 27 | PTD0 — GPIO / peripheral pin (Port D bit 0) |
| 引脚 28 | PTD1 — GPIO / peripheral pin (Port D bit 1) |
| 引脚 29 | PTD2 — GPIO / peripheral pin (Port D bit 2) |
| 引脚 30 | PTD3 — GPIO / peripheral pin (Port D bit 3) |
| 引脚 31 | PTD4 — GPIO / peripheral pin (Port D bit 4) |
| 引脚 32 | PTD5 — GPIO / peripheral pin (Port D bit 5) |
| 引脚 33 | PTD6 — GPIO / peripheral pin (Port D bit 6) |
| 引脚 34 | PTD7 — GPIO / peripheral pin (Port D bit 7) |
| 引脚 35 | PTE0 — GPIO / peripheral pin (Port E bit 0) |
| 引脚 36 | PTE1 — GPIO / peripheral pin (Port E bit 1) |
| 引脚 37 | PTE2 — GPIO / peripheral pin (Port E bit 2) |
| 引脚 38 | PTE3 — GPIO / peripheral pin (Port E bit 3) |
| 引脚 39 | PTE4 — GPIO / peripheral pin (Port E bit 4) |
| 引脚 40 | PTE5 — GPIO / peripheral pin (Port E bit 5) |
| 引脚 41 | PTE6 — GPIO / peripheral pin (Port E bit 6) |
| 引脚 42 | PTE7 — GPIO / peripheral pin (Port E bit 7) |
| 引脚 43 | RESET — Reset input (active low) |
| 引脚 44 | TCLK — Timer clock input / BDM clock |
| 引脚 45 | TDI — BDM data / test data input |
| 引脚 46 | TDO — BDM data / test data output |
| 引脚 47 | TMS — BDM mode select |
| 引脚 48 | VDDA — Analog supply voltage |
典型应用
MCF51AG128VLF 适用于 6 应用s: Smart Electricity Metering, Industrial Automation Controller, HVAC Control Board, Consumer HMI Panel, Low-End Motor Control, Building Automation Sensor Node.
Smart Electricity Metering
The MCF51AG128VLF fits smart electricity meters because its 50 MHz ColdFire V1 core runs metering algorithms and communication stacks concurrently. 128 KB Flash supports metering firmware, calibration tables, and DLMS/COSEM protocol stacks. 3.3V/5V dual-voltage I/O interfaces directly to shunt current sensors and metrology AFE chips. BDM debug enables in-line calibration during production. Industrial -40C to +105C range covers outdoor meter enclosures.
推荐
Industrial Automation Controller
The MCF51AG128VLF fits industrial automation controller boards because its 50 MHz core runs deterministic control loops while SCI/SPI/I2C peripherals connect to sensor networks. 128 KB Flash holds ladder-logic interpreters and Modbus firmware. Industrial temperature range and BDM debug support field-reprogrammable control firmware. The 48-LQFP package handles reflow on standard 4-layer industrial PCBs.
推荐
HVAC Control Board
The MCF51AG128VLF fits HVAC control boards because 128 KB Flash holds thermostat logic plus BACnet/Modbus stacks, and 3.3V/5V tolerant I/O interfaces legacy AC line-voltage optocouplers. Multiple timers support PWM valve/damper control and PID temperature loops. Low-power modes extend battery life on wireless thermostats. Industrial temperature range handles attic and basement installations.
推荐
Consumer HMI Panel
The MCF51AG128VLF drives consumer HMI panels such as small appliance displays and washing-machine control boards. SPI interfaces to TFT/STN displays and I2C touches touch-sensing ICs. 50 MHz ColdFire V1 runs LVGL-style graphics at modest frame rates. Industrial temperature range supports kitchen environments with heat and humidity stress.
推荐
Low-End Motor Control
The MCF51AG128VLF fits low-end motor control such as small BLDC fans, pumps, and e-bike auxiliary motors. PWM timers drive H-bridges and ADC channels sample current/voltage for commutation. 50 MHz core handles trapezoidal commutation and basic PI speed loops. Industrial temperature supports under-hood automotive and appliance applications.
推荐
Building Automation Sensor Node
The MCF51AG128VLF fits building-automation sensor nodes that monitor temperature, humidity, CO2, and occupancy. I2C/SPI interfaces common sensor ICs and ADC channels read analog sensors. Low-power modes with fast wake-up extend battery life for wireless nodes. 128 KB Flash supports Over-the-Air (OTA) firmware update logic and Zigbee/Thread stacks.
推荐
推荐产品汇总
工程参考数据： MCF51AG128VLF ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | MCF51AG128CLF | MCF51AG96VLF | MCF51JE256VML | MCF51AC256AVPUE | MCF51QU128VHS |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 48-LQFP (7x7 mm) | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same |
| Program Flash | 128 KB | 128 KB - same | 96 KB (-25%) | 256 KB (+100%) | 256 KB (+100%) | 128 KB - same |
| Core Architecture | ColdFire V1 | ColdFire V1 - same | ColdFire V1 - same | ColdFire V1 - same | ColdFire V1 - same | ColdFire V1 - same |
| Debug Interface | BDM | BDM - same | BDM - same | BDM - same | BDM - same | BDM - same |
| Packaging Carrier | Tray (VLF suffix) | Tape & Reel (CLF suffix) | Tray (VLF suffix) | Tray | Tray | Tray |
关键差异点
- Dual-voltage 3.3 V / 5 V tolerant I/O without level shifters （对比 MCF51AG96VLF)
- 128 KB Flash in 48-LQFP with ColdFire V1 deterministic core （对比 MCF51JE256VML)
- Tray packaging (VLF suffix) for prototype and low-volume production （对比 MCF51AG128CLF)
设计说明
Place 100 nF ceramic decoupling capacitors as close as possible to every VDD and VDDA pin, and add a bulk 10 uF tantalum or ceramic at the regulator output. The MCF51AG128VLF has both digital VDD and analog VDDA rails - keep the analog rail clean by routing it through a ferrite bead from the digital VDD. Power sequencing: VDDA should not exceed VDD by more than 0.3 V at any time, otherwise input latchup can occur on analog pins.
Route BDM signals (TCLK, TDI, TDO, TMS) as short traces kept clear of switching digital lines and away from PWM outputs. The 48-LQFP package allows escape on a 4-layer board with the exposed pad tied to ground through a 4-via array. Pin 1 should be marked with a silkscreen dot because the LQFP pin numbering is counter-clockwise from the top-left dot.
Do not enable the internal Flash security feature without first verifying your BDM interface works - a locked MCU can become bricked if the security password is lost. Also, the ColdFire V1 stack pointer (A7) must be initialized in the startup code before any C function call, or the MCU will execute garbage. Plan for Flash erase/program time during in-field updates - a full 128 KB erase can take several seconds at the slowest clock setting.
合规信息
RoHS compliance per LCSC and DigiKey product pages. Industrial temperature grade supports non-automotive deployment. For AEC-Q100 automotive applications, choose MCF51AC256AVPUE.