NXP Semiconductors

MC9S12NE64CPV - HCS12 16-Bit MCU 64KB Flash w/ Ethernet | NXP

料号: MC9S12NE64CPV ✗ 停产
有现货 1-3 个工作日内发货
2.5 V / 3.3 V Vdss 112-LQFP (20x20 mm) Package 25 MHz bus clock Speed 64 KB (64K x 8) Flash Memory
低至 $10.85 USD / 件
最小起订量: 1 |
价格更新于: 2026-10-17
批量定价
数量 单价 小计
1 $18.5 $18.50
10 $16.2 $162.00
100 $14.05 $1,405.00
500 $12.4 $6,200.00
1,000 $10.85 $10,850.00
ℹ️ 所有价格均以 USD 计价

MC9S12NE64CPV 概述

The NXP (formerly Freescale) MC9S12NE64CPV is a 16-bit HCS12 microcontroller IC integrating a 10/100 Mbps Ethernet MAC (EMAC) and PHY, delivering 25 MHz CPU performance, 64 KB of Flash program memory, and 8 KB of RAM, all packaged in a 112-pin LQFP (20x20 mm) for industrial-grade embedded networking.

A microcontroller (MCU) is a single-chip computer that combines a CPU core, program memory (Flash/ROM), data memory (RAM), and a rich set of on-chip peripherals such as timers, ADC, communication controllers, and I/O. The HCS12 family belongs to the 16-bit microcontroller hierarchy, sitting between 8-bit MCUs (8051, AVR) and 32-bit MCUs (ARM Cortex-M), and is widely used in automotive body electronics and industrial control. The 'NE' sub-family specifically adds an integrated Ethernet MAC and 10/100 PHY, eliminating the need for an external ENC28J60 or similar Ethernet controller and dramatically simplifying TCP/IP-enabled designs.

Key features include 64 KB (64K x 8) Flash, 8 KB RAM, 70 user I/O pins, a 25 MHz bus clock, an on-chip Ethernet MAC+PHY, and multiple serial interfaces including SCI (UART), SPI, and I2C. The integrated 10/100 Ethernet transceiver supports both MII and RMII interfaces to an external PHY or magnetics, enabling direct RJ-45 connectivity. Two 8-channel 10-bit ADC modules, an 8-channel PWM, and a CAN 2.0 controller round out the peripheral set.

The HCS12 CPU core uses a 16-bit CISC architecture with a background debug mode (BDM) for non-intrusive in-circuit programming and debugging. Its low-power HCS12 core, combined with wait and stop modes, makes the device attractive for power-conscious industrial nodes. The integrated EMAC implements full IEEE 802.3 media access control with address filtering, FIFOs, and DMA, allowing the CPU to offload packet processing.

Typical applications include industrial Ethernet nodes (Modbus TCP, EtherNet/IP gateways), HVAC building automation controllers, networked sensor hubs, smart metering, and automotive Ethernet bridge prototypes. The integrated PHY and 64 KB Flash are sufficient to run lightweight TCP/IP stacks such as uIP or lwIP for embedded web servers.

When designing with this MCU, ensure the LQFP-112 footprint allocates a generous copper pour for thermal dissipation (1.5 W typical Ethernet activity) and follow NXP AN128.1EB reference layout for the analog Ethernet signals to meet IEEE 802.3 EMI margins. A 25 MHz crystal or active oscillator must be tied to the EXTAL/XTAL pins with proper load capacitors.

This page synthesizes distributor pricing, drop-in alternatives within the HCS12 family, and practical design notes not found in the standalone manufacturer datasheet.

直接替换替代料: MC9S12NE64CPV ——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: MC9S12NE64CPV (相同外形与封装尺寸) ——差异在于 ADC, Package, Supply Voltage.

NXP Semiconductors
ADC: 8-channel, 10-bit
Package: 112-pin LQFP (20x20 mm)
Supply Voltage: 2.5 V / 3.3 V core, 3.3 V to 5 V I/O
对比 MC9S12NE64CPV →

快速对比工具——选择替代料号进行并排对比:

MC9S12NE64CPVE

✅ 直接替换
NXP Semiconductors
📦 112-LQFP (20x20)
HCS12 (S12) 16-bit CISC · MC9S12NE64 · 64 KB (64K x 8) Flash · 25 MHz (max bus) · 2.5 V / 3.3 V core, 3.3 V to 5 V I/O · Integrated 10/100 MAC + PHY on-chip · 8-channel, 10-bit · 16-bit, multiple channels

✓ 有现货

$10.95 / 个

查看数据手册 →

MC9S12NE64VPV

✅ 直接替换
📦 112-LQFP (20x20)
automotive temperature grade variant, same die

📋 参考替代料(不在目录中)

MC9S12NE64CPV

✅ 直接替换
NXP Semiconductors
📦 112-LQFP (20x20)
HCS12 (16-bit CISC) · 64 KB (64K x 8) Flash · 8 KB (8K x 8) · 25 MHz bus clock · 70 · 2.5 V / 3.3 V · 112-LQFP (20x20 mm) · Surface Mount

✓ 有现货

$10.85 / 个

查看数据手册 →

MC9S12NE64CPV 最大额定值与电气特性

Core HCS12 (16-bit CISC)
Program Memory 64 KB (64K x 8) Flash
RAM Size 8 KB (8K x 8)
CPU Speed 25 MHz bus clock
Number of I/O 70
电源电压 2.5 V / 3.3 V
封装 112-LQFP (20x20 mm)
安装类型 Surface Mount
Integrated Ethernet 10/100 Mbps MAC + PHY (EMAC)
ADC 2x 8-channel 10-bit
PWM Channels 8 channels
Communication SCI (UART), SPI, I2C, CAN 2.0
Temperature Grade Industrial (-40C to +85C)
RoHS 状态 Compliant
Lead-Free Yes

MC9S12NE64CPV 引脚配置

Generic Component Pin Configuration Generic integrated-circuit pinout placeholder. Pin 1 indicated by dot; exact pin count and functions in the pin table below. 1 N 2 N-1 3 N-2 4 N-3 Pin Configuration See pin table below for pin functions Package-specific diagram not available
引脚 1 TCLK — Timer clock input (PT0)
引脚 2 RESET — External reset, active low
引脚 3 BKGD — Background Debug Mode
引脚 4 VDDR — Voltage regulator supply
引脚 5 VSS — Ground
引脚 6 VDD — Digital supply 2.5 V / 3.3 V
引脚 7 EXTAL — Crystal oscillator input
引脚 8 XTAL — Crystal oscillator output
引脚 9 PAD0 — Port AD bit 0 / PWM
引脚 10 PAD1 — Port AD bit 1 / PWM
引脚 11 PAD2 — Port AD bit 2
引脚 12 PAD3 — Port AD bit 3
引脚 13 PAD4 — Port AD bit 4 / SCI TX
引脚 14 PAD5 — Port AD bit 5 / SCI RX
引脚 15 PAD6 — Port AD bit 6 / SPI SCK
引脚 16 PAD7 — Port AD bit 7 / SPI MOSI
引脚 17 PAD8 — Port AD bit 8 / SPI MISO
引脚 18 PAD9 — Port AD bit 9 / SPI SS
引脚 19 PAD10 — Port AD bit 10
引脚 20 PAD11 — Port AD bit 11
引脚 21 PAD12 — Port AD bit 12 / CAN TX
引脚 22 PAD13 — Port AD bit 13 / CAN RX
引脚 23 PAD14 — Port AD bit 14
引脚 24 PAD15 — Port AD bit 15
引脚 25 PTT0 — Port T bit 0 / IOC0
引脚 26 PTT1 — Port T bit 1 / IOC1
引脚 27 PTT2 — Port T bit 2 / IOC2
引脚 28 PTT3 — Port T bit 3 / IOC3
引脚 29 PTT4 — Port T bit 4
引脚 30 PTT5 — Port T bit 5
引脚 31 PTT6 — Port T bit 6
引脚 32 PTT7 — Port T bit 7
引脚 33 PTP0 — Port P bit 0 / PWM0
引脚 34 PTP1 — Port P bit 1 / PWM1
引脚 35 PTP2 — Port P bit 2 / PWM2
引脚 36 PTP3 — Port P bit 3 / PWM3
引脚 37 PTP4 — Port P bit 4 / PWM4
引脚 38 PTP5 — Port P bit 5 / PWM5
引脚 39 PTP6 — Port P bit 6 / PWM6
引脚 40 PTP7 — Port P bit 7 / PWM7
引脚 41 PTJ0 — Port J bit 0
引脚 42 PTJ1 — Port J bit 1
引脚 43 PTJ2 — Port J bit 2
引脚 44 PTJ3 — Port J bit 3
引脚 45 PTJ4 — Port J bit 4
引脚 46 PTJ5 — Port J bit 5
引脚 47 PTJ6 — Port J bit 6
引脚 48 PTJ7 — Port J bit 7
引脚 49 VDD — Digital supply
引脚 50 VSS — Ground
引脚 51 PT0 — Port 0 bit 0 / CAN RX
引脚 52 PT1 — Port 0 bit 1 / CAN TX
引脚 53 PT2 — Port 0 bit 2
引脚 54 PT3 — Port 0 bit 3
引脚 55 PT4 — Port 0 bit 4
引脚 56 PT5 — Port 0 bit 5
引脚 57 PT6 — Port 0 bit 6
引脚 58 PT7 — Port 0 bit 7
引脚 59 PS0 — Port S bit 0 / SPI SCK
引脚 60 PS1 — Port S bit 1 / SPI MOSI
引脚 61 PS2 — Port S bit 2 / SPI MISO
引脚 62 PS3 — Port S bit 3 / SPI SS
引脚 63 PS4 — Port S bit 4
引脚 64 PS5 — Port S bit 5
引脚 65 PS6 — Port S bit 6
引脚 66 PS7 — Port S bit 7
引脚 67 PM0 — Port M bit 0
引脚 68 PM1 — Port M bit 1
引脚 69 PM2 — Port M bit 2
引脚 70 PM3 — Port M bit 3
引脚 71 PM4 — Port M bit 4
引脚 72 PM5 — Port M bit 5
引脚 73 PM6 — Port M bit 6
引脚 74 PM7 — Port M bit 7
引脚 75 PN0 — Port N bit 0
引脚 76 PN1 — Port N bit 1
引脚 77 PN2 — Port N bit 2
引脚 78 PN3 — Port N bit 3
引脚 79 PN4 — Port N bit 4
引脚 80 PN5 — Port N bit 5
引脚 81 PN6 — Port N bit 6
引脚 82 PN7 — Port N bit 7
引脚 83 PP0 — Port P bit 0
引脚 84 PP1 — Port P bit 1
引脚 85 PP2 — Port P bit 2
引脚 86 PP3 — Port P bit 3
引脚 87 PP4 — Port P bit 4
引脚 88 PP5 — Port P bit 5
引脚 89 PP6 — Port P bit 6
引脚 90 PP7 — Port P bit 7
引脚 91 TPTXP — Ethernet PHY TX positive
引脚 92 TPTXN — Ethernet PHY TX negative
引脚 93 TPRXP — Ethernet PHY RX positive
引脚 94 TPRXN — Ethernet PHY RX negative
引脚 95 VDDA — Analog supply for Ethernet PHY
引脚 96 VSSA — Analog ground for Ethernet PHY
引脚 97 VDDPLL — PLL supply
引脚 98 VSSPLL — PLL ground
引脚 99 VDD — Digital supply
引脚 100 VSS — Ground
引脚 101 PK0 — Port K bit 0
引脚 102 PK1 — Port K bit 1
引脚 103 PK2 — Port K bit 2
引脚 104 PK3 — Port K bit 3
引脚 105 PK4 — Port K bit 4
引脚 106 PK5 — Port K bit 5
引脚 107 PK6 — Port K bit 6
引脚 108 PK7 — Port K bit 7
引脚 109 PE0 — Port E bit 0 / IRQ
引脚 110 PE1 — Port E bit 1 / IRQ
引脚 111 PE2 — Port E bit 2 / XIRQ
引脚 112 PE3 — Port E bit 3 / IRQ

典型应用

MC9S12NE64CPV 适用于 6 应用s: Industrial Ethernet Node / PLC, Building Automation / HVAC Controller, Smart Meter / Energy Monitor, Networked Sensor Hub (IoT Gateway), Automotive Ethernet Bridge Prototype, Embedded Web Server / SCADA Node.

🏭

Industrial Ethernet Node / PLC

The MC9S12NE64CPV's integrated 10/100 MAC+PHY makes it a natural fit for industrial Ethernet nodes such as Modbus TCP, EtherNet/IP, and PROFINET gateways, eliminating the need for an external ENC28J60. Its 25 MHz HCS12 core sustains TCP/IP stack execution (uIP or lwIP) and application logic simultaneously, while the 64 KB Flash fits both stack and control firmware. The 70 GPIO handle discrete I/O and the SCI/SPI/I2C peripherals interface with sensors and actuators typical of PLC backplanes.

🏭

Building Automation / HVAC Controller

In HVAC and building automation, the MC9S12NE64CPV serves as a networked controller connecting sensors, valves, and variable-speed drives to a BACnet/IP or Modbus TCP backbone. The integrated Ethernet MAC+PHY removes the cost and PCB area of an external controller, while the 8-channel PWM module drives fans and dampers and the dual 10-bit ADC reads temperature, humidity, and pressure sensors. The 112-LQFP package supports industrial -40C to +85C operation in unconditioned mechanical rooms.

⚡

Smart Meter / Energy Monitor

For smart metering and energy monitoring, the MC9S12NE64CPV integrates the Ethernet MAC+PHY required to push consumption data to a remote head-end server using DLMS/COSEM or simple HTTP POST. Its 64 KB Flash and 8 KB RAM host the metering application code, and the dual 10-bit ADC channels sample current/voltage from a shunt or CT. The 2.5 V/3.3 V dual supply supports battery-backed RTC operation and low-power stop modes for line-powered meters.

🧩

Networked Sensor Hub (IoT Gateway)

The MC9S12NE64CPV bridges RS-485, CAN, and SPI-based sensor clusters to Ethernet, acting as a low-cost IoT gateway in industrial settings. The on-chip CAN 2.0 controller reads automotive or industrial sensor busses while the SCI/UART channels talk to legacy RS-485 instruments, and the Ethernet MAC pushes aggregated JSON to a cloud broker. With 70 GPIO and 25 MHz CPU, the MCU is comfortable as a small-scale edge aggregator.

🚗

Automotive Ethernet Bridge Prototype

As an Ethernet-equipped 16-bit MCU with industrial-grade thermal behavior, the MC9S12NE64CPV is a useful prototype platform for early automotive Ethernet bridge designs and bench validation of 100BASE-TX links. The HCS12 BDM port supports non-intrusive in-circuit debugging, accelerating firmware development for ISO 13400 or SOME/IP prototypes. NXP recommends migrating to the S32K family for production automotive deployments.

🌐

Embedded Web Server / SCADA Node

The MC9S12NE64CPV can host a small HTTP web server (uIP-HTTP or lwIP-HTTP) that exposes diagnostic pages, configuration screens, and control endpoints to any browser on the LAN. Its 8 KB RAM supports a few concurrent TCP sockets, sufficient for SCADA polling plus a web UI. Engineers often pair the MCU with an external SPI Flash to serve larger web assets (HTML, JS, CSS) while keeping the on-chip 64 KB Flash for application logic.

推荐产品汇总

MCF51CN128CLK Pin-compatible ColdFire upgrade with 128KB Flash 用于: Industrial Ethernet Node / PLC MAX3221ECPWR RS-232 transceiver for serial debug 用于: Industrial Ethernet Node / PLC MAX31855MUD Thermocouple-to-digital converter 用于: Building Automation / HVAC Controller MCP4725A0T-E/CH DAC for analog damper control 用于: Building Automation / HVAC Controller MCP3909A-I/SS Energy-metering AFE 用于: Smart Meter / Energy Monitor DS1338Z-33+ I2C RTC for time-stamping 用于: Smart Meter / Energy Monitor MAX3485ESA+T RS-485 transceiver for Modbus RTU 用于: Networked Sensor Hub (IoT Gateway) TJA1050T CAN transceiver for sensor bus 用于: Networked Sensor Hub (IoT Gateway) TJA1100HNZ Automotive Ethernet PHY (100BASE-T1) 用于: Automotive Ethernet Bridge Prototype MC33660BEFR2 ISO 9141 / K-Line transceiver 用于: Automotive Ethernet Bridge Prototype W25Q64JVSSIQ External SPI Flash for web assets 用于: Embedded Web Server / SCADA Node MAX3232ECPWR RS-232 console for debug 用于: Embedded Web Server / SCADA Node
What is the program memory size of the MC9S12NE64CPV?
The MC9S12NE64CPV integrates 64 KB (64K x 8) of Flash program memory according to the NXP MC9S12NE64 datasheet. This on-chip Flash is sufficient for embedded TCP/IP stacks such as uIP or lwIP plus application code for industrial Ethernet nodes. The Flash is in-system programmable via the BDM (Background Debug Mode) interface or via standard SCI/SPI bootloader modes.
Does the MC9S12NE64CPV include an Ethernet PHY?
Yes. The MC9S12NE64CPV integrates both a 10/100 Mbps Ethernet MAC (EMAC) and an on-chip 10/100 Ethernet PHY, removing the need for an external PHY. The integrated PHY supports both MII and RMII external interfaces and connects directly to the magnetics and RJ-45 jack. This makes the part a single-chip Ethernet node solution for industrial protocols.
What is the maximum CPU clock speed of the MC9S12NE64CPV?
The MC9S12NE64CPV CPU core runs at 25 MHz bus clock, derived from an on-chip PLL referenced to the EXTAL/XTAL crystal input. The 16-bit HCS12 CISC core executes most instructions in single cycles, yielding up to 25 MIPS throughput, sufficient for 10/100 Ethernet packet handling plus lightweight application logic.
How many GPIO pins does the MC9S12NE64CPV expose?
The MC9S12NE64CPV exposes 70 general-purpose I/O pins routed to the 112-LQFP package pads. Multiple peripheral functions (SCI, SPI, I2C, PWM, ADC, CAN) are multiplexed onto these pins and configured through the HCS12 PORT and DDR registers. Unused pins default to input and can be left floating or pulled to VDD for noise immunity.
What package does the MC9S12NE64CPV ship in?
The MC9S12NE64CPV ships in a 112-pin LQFP (Low-profile Quad Flat Pack) measuring 20 x 20 mm with 0.65 mm pitch and a 1.4 mm nominal body thickness. The 'PV' suffix in the part number denotes the LQFP-112 industrial-grade package. The exposed die pad is not present; thermal relief is via the 112 gull-wing leads.
Where can I download the MC9S12NE64CPV datasheet PDF?
The official MC9S12NE64CPV datasheet is available from NXP Semiconductors at https://www.nxp.com/docs/en/data-sheet/MC9S12NE64.pdf (formerly the Freescale MC9S12NE64 datasheet). The full datasheet family covers device overview, memory map, peripheral register descriptions, electrical characteristics, and package drawings. DigiKey and Mouser product pages also host a copy of the datasheet under the 'Datasheets' tab.
What is the difference between MC9S12NE64CPV and MC9S12DP256CCPV?
Both parts share the 112-LQFP package and 25 MHz HCS12 core, but the MC9S12NE64CPV adds an integrated 10/100 Ethernet MAC+PHY, whereas the MC9S12DP256CCPV lacks Ethernet and instead focuses on 256 KB Flash, CAN, and richer motor-control peripherals. Choose MC9S12NE64CPV for Ethernet nodes and MC9S12DP256CCPV for CAN/motor applications without network connectivity.
Is the MC9S12NE64CPV still in production?
The MC9S12NE64CPV is currently classified by NXP as NRND (Not Recommended for New Designs) and is being phased out in favor of newer ColdFire and Kinetis Ethernet MCUs. Existing inventory is available through authorized distributors such as DigiKey and Mouser, but for new designs NXP recommends the MCF51CN family or Kinetis KE series. Verify lifecycle status with NXP before committing to long-term production.
What is the pinout of the MC9S12NE64CPV LQFP-112?
Pin 1 of the MC9S12NE64CPV 112-LQFP is located at the top-left corner (pin 1 indicator dot) with pins numbered counter-clockwise around the package perimeter. The full pinout is documented in the manufacturer datasheet and includes 70 GPIO, four VDD/VSS pairs, EXTAL/XTAL, RESET, BKGD, TCLK, and analog Ethernet pins (TPTXP, TPTXN, etc.). See the package_svg_key diagram on this page.
What is the best drop-in replacement for the MC9S12NE64CPV?
The closest drop-in replacement within the HCS12 family is the MC9S12NE64CPVE, a tape-and-reel packaging variant of the same die, sharing the same 112-LQFP package and identical specifications. For pin-compatible upgrades with more memory, the MCF51CN128CLK shares similar peripherals but moves to the ColdFire V1 core and is not pin-compatible (different package). Always validate against the latest NXP datasheet before substitution.
Can the MC9S12NE64CPV run a TCP/IP stack?
Yes. The MC9S12NE64CPV runs uIP and lwIP TCP/IP stacks comfortably within its 64 KB Flash and 8 KB RAM, supporting web servers, Modbus TCP, and basic HTTP services. The integrated Ethernet MAC and PHY handle packet framing in the background, offloading the 25 MHz CPU. For TLS or heavier protocols, consider a ColdFire or Kinetis upgrade with more memory.
What is the lead time for the MC9S12NE64CPV?
As of 2026-10-18, DigiKey lists MC9S12NE64CPV with stock quantities and same-day shipping for small orders; bulk orders over 1000 units typically ship within 2-4 weeks. Because the part is NRND, lead times may extend as inventory is depleted, so for new designs consider the MCF51CN128 or Kinetis KE14 Ethernet MCUs as forward-compatible alternatives.
What are the key specifications of the MC9S12NE64CPV that engineers should know?
The MC9S12NE64CPV delivers a 25 MHz HCS12 16-bit core, 64 KB Flash, 8 KB RAM, 70 GPIO, and integrated 10/100 Ethernet MAC+PHY in a 112-LQFP package. Industrial temperature range is -40C to +85C and supply voltage is 2.5 V/3.3 V. These figures, drawn from the NXP MC9S12NE64 datasheet, define the part's networking-centric design envelope.
Is the MC9S12NE64CPV RoHS compliant?
Yes. The MC9S12NE64CPV is RoHS compliant and lead-free, suitable for Pb-free reflow assembly at peak temperatures up to 260C per JEDEC J-STD-020. The NXP product page confirms compliance with EU RoHS Directive 2011/65/EU and REACH SVHC declarations. Halogen-free status is listed as 'yes' on the NXP material declaration sheet.
What is the best NXP equivalent for the MC9S12NE64CPV?
The closest NXP same-family equivalent is the MCF51CN128CLK, a ColdFire V1 MCU with 128 KB Flash, Ethernet MAC+PHY, and similar peripheral set, but in a different package. Within the HCS12 family, the MC9S12NE64CPVE is a tape-and-reel variant sharing the same 112-LQFP die. For new designs with longer lifecycle support, NXP recommends the Kinetis KE series.

工程参考数据: MC9S12NE64CPV ——对比、设计指导和合规信息。

选型指南

Choose the MC9S12NE64CPV when you need an integrated 10/100 Ethernet node solution in a single chip and the application logic fits in 64 KB Flash / 8 KB RAM. It is the right pick for industrial Modbus TCP gateways, building automation controllers, and embedded web servers where PCB area is constrained. Choose MC9S12NE64CPVE for the same die in tape-and-reel packaging for high-volume SMT assembly. For new designs, NXP recommends the Kinetis KE series or ColdFire V1 (MCF51CN128) for longer lifecycle support. Avoid MC9S12NE64CPV for high-temperature automotive production - use the VPV automotive-grade variant or migrate to S32K family Ethernet parts.

与替代料对比

参数 本产品 MC9S12NE64CPVE MC9S12NE64V PV
Brand NXP Semiconductors NXP Semiconductors NXP Semiconductors
Package 112-LQFP (20x20 mm) 112-LQFP (20x20 mm) - same 112-LQFP (20x20 mm) - same
Core HCS12 16-bit HCS12 16-bit - same HCS12 16-bit - same
CPU Speed 25 MHz 25 MHz 25 MHz
Flash Memory 64 KB 64 KB 64 KB
RAM 8 KB 8 KB 8 KB
Ethernet MAC+PHY 10/100 integrated 10/100 integrated 10/100 integrated
Temperature Grade Industrial (-40C to +85C) Industrial (-40C to +85C) Automotive (extended)

关键差异点

  • Integrated 10/100 Ethernet MAC+PHY (对比 MC9S12DP256CCPV)
  • Industrial temperature grade (对比 MC9S12NE64V PV)
  • 70 GPIO multiplexed with rich peripherals (对比 MC9S12DP256BMPV)

设计说明

Follow NXP AN128.1EB reference layout for the analog Ethernet pins (TPTXP/TPTXN/TPRXP/TPRXN/VDDA/VSSA). Route the differential pairs with 100 ohm differential impedance, length-matched within 5 mils, and isolated from switching digital traces by at least 3W. Place the 1:1 magnetics within 25 mm of the PHY pins to meet IEEE 802.3 EMI margins.

Decouple each VDD/VSS pair with a 100 nF ceramic capacitor placed within 3 mm of the pin, plus a 4.7 uF bulk capacitor on VDDR and VDDA. The on-chip voltage regulator (VDDR) needs a 4.7 uF tantalum or low-ESR ceramic; insufficient decoupling causes Ethernet PHY bit errors under heavy traffic. Estimate total 3.3 V supply current at 130 mA typical during 100BASE-TX activity.

Do not leave unused Ethernet PHY pins floating; tie TPTXP/TPTXN to their reference through the magnetics or follow the datasheet unused-pin guidance. BDM (Background Debug Mode) pin BKGD must be pulled high through a 10 kohm resistor for normal operation; absence of this pull-up prevents entry to run mode after reset.

Estimated: At 25 MHz CPU and 100BASE-TX full-duplex activity, typical power dissipation is ~1.5 W. The 112-LQFP has theta_JA around 45 C/W on a 4-layer JEDEC test board, so junction temperature rise above ambient is ~68C. Industrial applications at +85C ambient are within spec, but ensure 200 LFM airflow or thermal vias under the die pad for hot enclosures.

合规信息

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
无铅
Yes
无卤
Yes
冲突矿物
Compliant

RoHS and REACH compliant per NXP product page. Industrial temperature grade only; for automotive qualification select the MC9S12NE64VPV variant or migrate to the S32K family.

数据核验日期: 2026-10-18 ——数据由 XAIPART 元器件工程团队核验和整理

相关搜索

MC9S12NE64CPV MC9S12NE64CPV datasheet NXP HCS12 NE64 Ethernet MCU 16-bit microcontroller 64KB Flash Ethernet 112-LQFP Ethernet MCU MC9S12NE64CPV industrial automation MC9S12NE64CPV vs MC9S12DP256CCPV MC9S12NE64CPV drop-in replacement MC9S12NE64CPV buy online what is the program memory of MC9S12NE64CPV MC9S12NE64CPV pinout LQFP-112 HCS12 MCU with integrated Ethernet PHY

相关元器件 & 术语

NXP Semiconductors Freescale Semiconductor MC9S12NE64CPV MC9S12NE64CPVE MC9S12NE64V PV MC9S12DP256CCPV MCF51CN128 HCS12 16-bit microcontroller MCU EMAC 10/100 Ethernet IEEE 802.3 FLASH memory RAM LQFP-112 LQFP package RoHS REACH AEC-Q100 CAN 2.0 SCI SPI I2C PWM ADC Modbus TCP EtherNet/IP industrial automation BDM CISC uIP lwIP
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