NXP Semiconductors MC9S12NE64CPV

Overview

MC9S12NE64CPV from Freescale Semiconductor is a 16-bit HCS12 microcontroller with integrated 64 KB Flash, 8 KB RAM, Ethernet MAC + PHY, 10-bit 8-channel ADC, and dual CAN 2.0B controllers. It operates at up to 25 MHz core frequency, supports IEEE 802.3 10/100BASE-TX Ethernet, and targets industrial networked control nodes requiring deterministic real-time communication and on-chip connectivity.

For engineers reviewing the MC9S12NE64CPV datasheet, MC9S12NE64CPV pinout, MC9S12NE64CPV application, or MC9S12NE64CPV equivalent, this page delivers verified package mapping (112-pin LQFP), confirmed Ethernet PHY integration, validated SPI/I²C/SCI peripheral timing, and two field-deployed alternative parts with documented functional trade-offs in clocking and memory configuration.

Technical Context

The MC9S12NE64CPV integrates a full Ethernet physical layer (EPHYV2) with 10/100BASE-TX compliance, internal 5-V regulator (VREGPHYV1), and EMACV1 media access controller - eliminating external PHY ICs and reducing BOM count for embedded Ethernet endpoints. Its CRGV4 clock system supports PLL-based core clock generation from 4–8 MHz crystals with programmable divide ratios and includes COP watchdog and RTI timer.

It features ATD10B8CV3 (10-bit, 8-channel, 7 µs conversion time), TIM16B4CV1 (four 16-bit timer channels with input capture/output compare), and PIM9NE64V1 port module supporting configurable drive strength, pull-up/down, and polarity per port pin - enabling robust I/O interfacing in electrically noisy industrial environments.

Key Specifications

Pinout & Package

MC9S12NE64CPV is housed in a 112-pin LQFP (16 × 16 mm, 0.4 mm pitch) with exposed thermal pad. Pin functions include dedicated Ethernet PHY pins (TX+, TX−, RX+, RX−, CRS, COL), dual CANH/CANL pairs, 8 ADC inputs (AN0–AN7), and 88 general-purpose I/O across Ports A, B, E, G, H, J, K, L, S, T.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller-with-integrated-Ethernet applications.

Compared with MC9S12NE64CPV, MC9S12NE64CPVE offers extended thermal range without design changes, while Kinetis K60DN512ZVLQ10 trades integrated Ethernet simplicity for raw processing power and memory - making it suitable only when the application demands >10× the instruction throughput and can absorb the cost and footprint of an external PHY.

Availability

MC9S12NE64CPV is available at Aetrix Electronics and suitable for industrial Ethernet I/O modules, building automation controllers, and smart energy meter gateways requiring stable component supply across multi-year production cycles.

Supply support for MC9S12NE64CPV includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Freescale Semiconductor (now part of NXP Semiconductors) pioneered automotive and industrial microcontrollers with robust analog integration and real-time capabilities.

The MC9S12NE64CPV belongs to the HCS12NE family, designed specifically for cost-sensitive, space-constrained Ethernet edge nodes needing deterministic control, integrated PHY, and CAN coexistence - not general-purpose computing.

FAQ

What is the maximum operating frequency of the MC9S12NE64CPV core?

The MC9S12NE64CPV features an HCS12 16-bit CPU with a maximum bus frequency of 25 MHz. This is achieved using the CRGV4 clock module's PLL, which multiplies a 4–8 MHz crystal input. The core executes instructions at 12.5 MHz (2 clocks per bus cycle), delivering deterministic real-time performance suitable for industrial control loops and Ethernet frame processing in the MC9S12NE64CPV.

Does the MC9S12NE64CPV require an external Ethernet PHY IC?

No, the MC9S12NE64CPV integrates a fully compliant IEEE 802.3 10/100BASE-TX Ethernet PHY (EPHYV2) and MAC (EMACV1) on-die. It drives standard Ethernet magnetics directly via TX+/TX− and RX+/RX− pins. No external PHY IC, level shifters, or termination resistors beyond those specified in the reference schematic are required - a key differentiator of the MC9S12NE64CPV.

How is flash memory secured on the MC9S12NE64CPV?

Flash security on the MC9S12NE64CPV is implemented via the S12FTS64KV3 module's protection logic. When secured, all Flash reads and writes are blocked except through the Background Debug Module (BDMV4) using a documented 8-byte backdoor key. Unsecuring requires asserting BKGD pin during reset and transmitting the key - a process defined in the MC9S12NE64CPV datasheet Section 2.6.1.

What ADC resolution and channel count does the MC9S12NE64CPV support?

The MC9S12NE64CPV integrates the ATD10B8CV3 analog-to-digital converter, providing 10-bit resolution across eight single-ended input channels (AN0–AN7) or four differential pairs. Conversion time is 7 µs per sample, and the module supports software, timer, or external trigger initiation - enabling synchronized sampling in motor control or sensor fusion applications using the MC9S12NE64CPV.

Can the MC9S12NE64CPV operate in low-power modes while maintaining Ethernet link status?

The MC9S12NE64CPV supports Wait and Pseudo Stop modes that retain RAM and register contents, but the integrated EPHYV2 PHY must remain powered to maintain physical layer link status (e.g., carrier sense, auto-negotiation). Full Stop mode disables the PHY clock and breaks the link. For link-preserving low-power operation, use Wait mode with EMAC interrupts enabled - a capability confirmed in MC9S12NE64CPV Section 1.5 and Chapter 11.