MC9S12NE64CPV - HCS12 16-Bit MCU 64KB Flash w/ Ethernet | NXP
MPN: MC9S12NE64CPV ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 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 |
MC9S12NE64CPV Overview
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.
Drop-in alternatives for MC9S12NE64CPV — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MC9S12NE64CPV (same form factor and footprint) — differing in ADC, Package, Supply Voltage.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MC9S12NE64CPVE
✅ Drop-In✓ In Stock
$10.95 / Unit
View Datasheet →MC9S12NE64VPV
✅ Drop-In📋 Reference alternative (not in catalog)
MC9S12NE64CPV
✅ Drop-In✓ In Stock
$10.85 / Unit
View Datasheet →MC9S12NE64CPV Maximum Ratings & Electrical Characteristics
| 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 |
| Supply Voltage | 2.5 V / 3.3 V |
| Package | 112-LQFP (20x20 mm) |
| Mounting Type | 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 Status | Compliant |
| Lead-Free | Yes |
MC9S12NE64CPV Pin Configuration
| Pin 1 | TCLK — Timer clock input (PT0) |
| Pin 2 | RESET — External reset, active low |
| Pin 3 | BKGD — Background Debug Mode |
| Pin 4 | VDDR — Voltage regulator supply |
| Pin 5 | VSS — Ground |
| Pin 6 | VDD — Digital supply 2.5 V / 3.3 V |
| Pin 7 | EXTAL — Crystal oscillator input |
| Pin 8 | XTAL — Crystal oscillator output |
| Pin 9 | PAD0 — Port AD bit 0 / PWM |
| Pin 10 | PAD1 — Port AD bit 1 / PWM |
| Pin 11 | PAD2 — Port AD bit 2 |
| Pin 12 | PAD3 — Port AD bit 3 |
| Pin 13 | PAD4 — Port AD bit 4 / SCI TX |
| Pin 14 | PAD5 — Port AD bit 5 / SCI RX |
| Pin 15 | PAD6 — Port AD bit 6 / SPI SCK |
| Pin 16 | PAD7 — Port AD bit 7 / SPI MOSI |
| Pin 17 | PAD8 — Port AD bit 8 / SPI MISO |
| Pin 18 | PAD9 — Port AD bit 9 / SPI SS |
| Pin 19 | PAD10 — Port AD bit 10 |
| Pin 20 | PAD11 — Port AD bit 11 |
| Pin 21 | PAD12 — Port AD bit 12 / CAN TX |
| Pin 22 | PAD13 — Port AD bit 13 / CAN RX |
| Pin 23 | PAD14 — Port AD bit 14 |
| Pin 24 | PAD15 — Port AD bit 15 |
| Pin 25 | PTT0 — Port T bit 0 / IOC0 |
| Pin 26 | PTT1 — Port T bit 1 / IOC1 |
| Pin 27 | PTT2 — Port T bit 2 / IOC2 |
| Pin 28 | PTT3 — Port T bit 3 / IOC3 |
| Pin 29 | PTT4 — Port T bit 4 |
| Pin 30 | PTT5 — Port T bit 5 |
| Pin 31 | PTT6 — Port T bit 6 |
| Pin 32 | PTT7 — Port T bit 7 |
| Pin 33 | PTP0 — Port P bit 0 / PWM0 |
| Pin 34 | PTP1 — Port P bit 1 / PWM1 |
| Pin 35 | PTP2 — Port P bit 2 / PWM2 |
| Pin 36 | PTP3 — Port P bit 3 / PWM3 |
| Pin 37 | PTP4 — Port P bit 4 / PWM4 |
| Pin 38 | PTP5 — Port P bit 5 / PWM5 |
| Pin 39 | PTP6 — Port P bit 6 / PWM6 |
| Pin 40 | PTP7 — Port P bit 7 / PWM7 |
| Pin 41 | PTJ0 — Port J bit 0 |
| Pin 42 | PTJ1 — Port J bit 1 |
| Pin 43 | PTJ2 — Port J bit 2 |
| Pin 44 | PTJ3 — Port J bit 3 |
| Pin 45 | PTJ4 — Port J bit 4 |
| Pin 46 | PTJ5 — Port J bit 5 |
| Pin 47 | PTJ6 — Port J bit 6 |
| Pin 48 | PTJ7 — Port J bit 7 |
| Pin 49 | VDD — Digital supply |
| Pin 50 | VSS — Ground |
| Pin 51 | PT0 — Port 0 bit 0 / CAN RX |
| Pin 52 | PT1 — Port 0 bit 1 / CAN TX |
| Pin 53 | PT2 — Port 0 bit 2 |
| Pin 54 | PT3 — Port 0 bit 3 |
| Pin 55 | PT4 — Port 0 bit 4 |
| Pin 56 | PT5 — Port 0 bit 5 |
| Pin 57 | PT6 — Port 0 bit 6 |
| Pin 58 | PT7 — Port 0 bit 7 |
| Pin 59 | PS0 — Port S bit 0 / SPI SCK |
| Pin 60 | PS1 — Port S bit 1 / SPI MOSI |
| Pin 61 | PS2 — Port S bit 2 / SPI MISO |
| Pin 62 | PS3 — Port S bit 3 / SPI SS |
| Pin 63 | PS4 — Port S bit 4 |
| Pin 64 | PS5 — Port S bit 5 |
| Pin 65 | PS6 — Port S bit 6 |
| Pin 66 | PS7 — Port S bit 7 |
| Pin 67 | PM0 — Port M bit 0 |
| Pin 68 | PM1 — Port M bit 1 |
| Pin 69 | PM2 — Port M bit 2 |
| Pin 70 | PM3 — Port M bit 3 |
| Pin 71 | PM4 — Port M bit 4 |
| Pin 72 | PM5 — Port M bit 5 |
| Pin 73 | PM6 — Port M bit 6 |
| Pin 74 | PM7 — Port M bit 7 |
| Pin 75 | PN0 — Port N bit 0 |
| Pin 76 | PN1 — Port N bit 1 |
| Pin 77 | PN2 — Port N bit 2 |
| Pin 78 | PN3 — Port N bit 3 |
| Pin 79 | PN4 — Port N bit 4 |
| Pin 80 | PN5 — Port N bit 5 |
| Pin 81 | PN6 — Port N bit 6 |
| Pin 82 | PN7 — Port N bit 7 |
| Pin 83 | PP0 — Port P bit 0 |
| Pin 84 | PP1 — Port P bit 1 |
| Pin 85 | PP2 — Port P bit 2 |
| Pin 86 | PP3 — Port P bit 3 |
| Pin 87 | PP4 — Port P bit 4 |
| Pin 88 | PP5 — Port P bit 5 |
| Pin 89 | PP6 — Port P bit 6 |
| Pin 90 | PP7 — Port P bit 7 |
| Pin 91 | TPTXP — Ethernet PHY TX positive |
| Pin 92 | TPTXN — Ethernet PHY TX negative |
| Pin 93 | TPRXP — Ethernet PHY RX positive |
| Pin 94 | TPRXN — Ethernet PHY RX negative |
| Pin 95 | VDDA — Analog supply for Ethernet PHY |
| Pin 96 | VSSA — Analog ground for Ethernet PHY |
| Pin 97 | VDDPLL — PLL supply |
| Pin 98 | VSSPLL — PLL ground |
| Pin 99 | VDD — Digital supply |
| Pin 100 | VSS — Ground |
| Pin 101 | PK0 — Port K bit 0 |
| Pin 102 | PK1 — Port K bit 1 |
| Pin 103 | PK2 — Port K bit 2 |
| Pin 104 | PK3 — Port K bit 3 |
| Pin 105 | PK4 — Port K bit 4 |
| Pin 106 | PK5 — Port K bit 5 |
| Pin 107 | PK6 — Port K bit 6 |
| Pin 108 | PK7 — Port K bit 7 |
| Pin 109 | PE0 — Port E bit 0 / IRQ |
| Pin 110 | PE1 — Port E bit 1 / IRQ |
| Pin 111 | PE2 — Port E bit 2 / XIRQ |
| Pin 112 | PE3 — Port E bit 3 / IRQ |
Typical Applications
MC9S12NE64CPV is suitable for 6 applications: 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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for MC9S12NE64CPV — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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) |
Key Differentiators
- Integrated 10/100 Ethernet MAC+PHY (vs MC9S12DP256CCPV)
- Industrial temperature grade (vs MC9S12NE64V PV)
- 70 GPIO multiplexed with rich peripherals (vs MC9S12DP256BMPV)
Design Notes
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.
Compliance Information
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.
