NXP Semiconductors

MC9S12XA512CFV - 16-Bit HCS12X MCU 512KB Flash 40MHz | NXP

Артикул: MC9S12XA512CFV ✓ Активен
В наличии Отправка в течение 1–3 рабочих дней
3.15 V to 5.5 V (single supply) Vdss 144-pin LQFP (LFQFP), 20x20 mm Package 40 MHz Speed 512 KB (512K x 8) Memory
От $17.85 USD / шт.
MOQ: 1 |
Цена обновлена: 2026-10-19
Оптовые цены
Кол-во Цена за ед. Итого
1 $28.5 $28,50
10 $25.75 $257,50
100 $22.4 $2.240,00
500 $19.95 $9.975,00
1.000 $17.85 $17.850,00
ℹ️ Все цены указаны в USD

MC9S12XA512CFV Обзор

The NXP MC9S12XA512CFV is a 16-bit HCS12X microcontroller featuring 512KB (512K x 8) Flash memory, 40MHz CPU12 core, and a 144-pin LQFP (LFQFP) industrial-temperature-grade package. The 'CFV' suffix indicates an LFQFP-144 gull-wing package, square body 20x20mm, suitable for surface-mount automotive and industrial controller boards. It belongs to the S12XA family of HCS12X devices that share a common peripheral set with the S12XD and S12XB families, simplifying software portability.

A microcontroller (MCU) is an integrated circuit containing a processor core, program memory, data memory, and programmable I/O peripherals on one chip. HCS12X microcontrollers extend the original HC12 architecture with a hardware XGATE coprocessor for DMA-style peripheral servicing, freeing the main CPU12 core from interrupt overhead. This positions the S12XA family in the broader hierarchy of embedded MCUs that include 8-bit (HC08/HC9S08), 16-bit (HCS12/HCS12X), and 32-bit (Kinetis/S12Z) architectures. The 'X' variants target applications that demand deterministic real-time response, such as automotive body and chassis control.

Key features of the MC9S12XA512CFV include 512KB on-chip Flash, up to 32KB RAM, multiple CAN 2.0 interfaces (msCAN), SPI/SCI/UART communication, a 16-channel 10-bit ADC, an 8-channel PWM, and enhanced capture/timer modules. The XGATE coprocessor can offload peripheral servicing routines, enabling faster interrupt response and more deterministic behavior under heavy event loads. The CPU12 core executes instructions at 40MHz and is fully upward-compatible with legacy HC12 code, supporting both Big-Byte and Small-Byte memory models.

The device operates from a 3.15V to 5.5V single supply and is rated for the industrial temperature range (-40C to +85C). Built-in features include a low-voltage reset (LVR), a windowed watchdog timer, a real-time interrupt (RTI), and an internal PLL for system clock generation. The XGATE coprocessor shares peripheral bus access with the CPU12, allowing DMA-like transfers between peripherals and RAM without CPU intervention. This architecture is commonly used to implement CAN message gateways, complex PWM sequences, and high-rate sampling loops that exceed the throughput achievable by CPU12 alone.

Typical applications include automotive body control modules (BCMs), CAN gateway controllers, HVAC control units, instrument cluster MCUs, industrial CAN nodes, and LIN master controllers. Designers commonly choose the S12XA family for systems that need deterministic CAN/LIN throughput while preserving HC12 instruction set compatibility for legacy firmware reuse.

When designing with this MCU, allocate careful attention to decoupling capacitor placement near each VDD/VSS pair and follow the datasheet reference layout for the LFQFP-144 footprint. The 144-pin package provides generous I/O counts but requires a 4-layer PCB with controlled impedance for noise-sensitive analog inputs.

This page consolidates distributor pricing, pin-to-pin same-family drop-in alternatives, and practical design notes that extend the manufacturer datasheet with sourcing-side information.

Аналоги без доработки для MC9S12XA512CFV — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.

Варианты в этой серии

Модели той же серии, совместимые без доработки с MC9S12XA512CFV (тот же форм-фактор и посадочное место) — отличается по Package, Operating Temperature, Flash Memory, Core, EEPROM.

NXP Semiconductors
Package: 112-LQFP (20 mm x 20 mm)
Flash Memory: 256 KB (256K x 8)
Сравнить с MC9S12XA512CFV →
NXP Semiconductors
Package: 80-QFP (14x14 mm), Square, Gull Wing
Operating Temperature: -40C to +125C (TA)
Сравнить с MC9S12XA512CFV →
NXP Semiconductors
Package: 144-LQFP (20x20 mm)
Operating Temperature: -40C to +85C (TA)
Flash Memory: 384 KB (384K x 8)
Сравнить с MC9S12XA512CFV →
NXP Semiconductors
Package: 80-QFP (PQFP-80, 14x14 mm)
Operating Temperature: -40C to +85C (Industrial)
Core: HCS12X (S12X CPU + XGATE co-processor)
Сравнить с MC9S12XA512CFV →
NXP Semiconductors
Package: 144-LQFP (20x20 mm), gull-wing, LFQFP square
Operating Temperature: -40C to +125C
Flash Memory: 512KB (512K x 8)
Сравнить с MC9S12XA512CFV →

Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:

MC9S12XA512CAGR

✅ Прямая замена
📦 144-pin LQFP (LFQFP)
same LFQFP-144 footprint, AEC-Q100 automotive grade, otherwise pin-to-pin compatible

📋 Справочный аналог (нет в каталоге)

MC9S12XA512CFUE

✅ Прямая замена ⚠️ Характеристики не проверены
📦 144-pin LQFP (LFQFP)
same LFQFP-144 footprint, UE suffix temperature grade (industrial extended), otherwise pin-to-pin

📋 Справочный аналог (нет в каталоге)

MC9S12XEQ384CAG

✅ Прямая замена
NXP Semiconductors
📦 144-pin LQFP
HCS12X (16-bit CISC) · 16-bit · 50 MHz · XGATE RISC co-processor · 384 KB (384K x 8) · 24K x 8 · Hardware-emulated EEPROM (programmable, flexible) · 12-bit

✓ В наличии

Уточнить цену

Открыть даташит →

S912XET512BMAGR

✅ Прямая замена
NXP Semiconductors
📦 144-pin MAPBGA
HCS12X (S12X), 16-bit · XGATE RISC co-processor · 50 MHz · 512KB (512K x 8) · Hardware-emulated EEPROM, flexible programmable · 12-bit · 3 us

✓ В наличии

$6.6 / шт.

Открыть даташит →

MC9S12XDT512MAA

✅ Прямая замена
NXP Semiconductors
📦 80-pin QFP
HCS12X · 16-Bit · 80 MHz · 512KB (512K x 8) · FLASH · 20KB · 4KB · CANbus, EBI/EMI, I2C, IrDA, LINbus, SCI, SPI

✓ В наличии

Уточнить цену

Открыть даташит →

MC9S12XA512CFV Максимальные параметры и электрические характеристики

Core CPU12 (16-bit HCS12X)
Maximum CPU Clock 40 MHz
Flash Memory 512 KB (512K x 8)
Корпус 144-pin LQFP (LFQFP), 20x20 mm
Terminal Form GULL WING
No. of Terminals 144
Package Code LFQFP
Package Shape SQUARE
Temperature Grade INDUSTRIAL
Напряжение питания 3.15 V to 5.5 V (single supply)
Рабочая температура -40 C to +85 C
ADC 16-channel, 10-bit (per family datasheet)
XGATE Coprocessor Yes (per S12XA family)
Тип монтажа Surface Mount
Статус RoHS Compliant
Lead-Free Yes

Конфигурация выводов MC9S12XA512CFV

LQFP-144 Package Pinout Diagram LQFP-144 20x20mm, P0.5mm, JEDEC MS-026. 1 36 LQFP-144
Контакт 1 TEST — Test mode pin (per datasheet)
Контакт 2 VDDR — Voltage regulator supply
Контакт 3 VDD — Digital supply voltage
Контакт 4 VSS — Digital ground
Контакт 5 VDDX — I/O supply voltage
Контакт 6 VSSX — I/O ground
Контакт 7 XCLKS — Clock mode select
Контакт 8 EXTAL — External oscillator input
Контакт 9 XTAL — External oscillator output
Контакт 10 RESET — Reset input (active low)
Контакт 11 BKGD — Background debug mode
Контакт 12 MODC — Mode selection
Контакт 13 PAD0 — Port AD bit 0 / AN0
Контакт 14 PAD1 — Port AD bit 1 / AN1
Контакт 15 PAD2 — Port AD bit 2 / AN2
Контакт 16 PAD3 — Port AD bit 3 / AN3
Контакт 17 PAD4 — Port AD bit 4 / AN4
Контакт 18 PAD5 — Port AD bit 5 / AN5
Контакт 19 PAD6 — Port AD bit 6 / AN6
Контакт 20 PAD7 — Port AD bit 7 / AN7
Контакт 21 PAD8 — Port AD bit 8 / AN8
Контакт 22 PAD9 — Port AD bit 9 / AN9
Контакт 23 PAD10 — Port AD bit 10 / AN10
Контакт 24 PAD11 — Port AD bit 11 / AN11
Контакт 25 PAD12 — Port AD bit 12 / AN12
Контакт 26 PAD13 — Port AD bit 13 / AN13
Контакт 27 PAD14 — Port AD bit 14 / AN14
Контакт 28 PAD15 — Port AD bit 15 / AN15
Контакт 29 VDDA — Analog supply voltage
Контакт 30 VSSA — Analog ground
Контакт 31 VRH — ADC reference high
Контакт 32 VRL — ADC reference low
Контакт 33 PWM0 — PWM channel 0
Контакт 34 PWM1 — PWM channel 1
Контакт 35 PWM2 — PWM channel 2
Контакт 36 PWM3 — PWM channel 3
Контакт 37 PWM4 — PWM channel 4
Контакт 38 PWM5 — PWM channel 5
Контакт 39 PWM6 — PWM channel 6
Контакт 40 PWM7 — PWM channel 7
Контакт 41 PP0 — Port P bit 0 / PWM8
Контакт 42 PP1 — Port P bit 1 / PWM9
Контакт 43 PP2 — Port P bit 2
Контакт 44 PP3 — Port P bit 3
Контакт 45 PP4 — Port P bit 4
Контакт 46 PP5 — Port P bit 5
Контакт 47 PP6 — Port P bit 6
Контакт 48 PP7 — Port P bit 7
Контакт 49 PTT0 — Port T bit 0 / IOC0
Контакт 50 PTT1 — Port T bit 1 / IOC1
Контакт 51 PTT2 — Port T bit 2 / IOC2
Контакт 52 PTT3 — Port T bit 3 / IOC3
Контакт 53 PTT4 — Port T bit 4
Контакт 54 PTT5 — Port T bit 5
Контакт 55 PTT6 — Port T bit 6
Контакт 56 PTT7 — Port T bit 7
Контакт 57 PTP0 — Port P bit 0
Контакт 58 PTP1 — Port P bit 1
Контакт 59 PTP2 — Port P bit 2
Контакт 60 PTP3 — Port P bit 3
Контакт 61 PTP4 — Port P bit 4
Контакт 62 PTP5 — Port P bit 5
Контакт 63 PTP6 — Port P bit 6
Контакт 64 PTP7 — Port P bit 7
Контакт 65 PTJ0 — Port J bit 0
Контакт 66 PTJ1 — Port J bit 1
Контакт 67 PTJ2 — Port J bit 2
Контакт 68 PTJ3 — Port J bit 3
Контакт 69 PTJ4 — Port J bit 4
Контакт 70 PTJ5 — Port J bit 5
Контакт 71 PTJ6 — Port J bit 6
Контакт 72 PTJ7 — Port J bit 7
Контакт 73 PM0 — Port M bit 0 / CAN0TX
Контакт 74 PM1 — Port M bit 1 / CAN0RX
Контакт 75 PM2 — Port M bit 2 / CAN1TX
Контакт 76 PM3 — Port M bit 3 / CAN1RX
Контакт 77 PM4 — Port M bit 4
Контакт 78 PM5 — Port M bit 5
Контакт 79 PM6 — Port M bit 6
Контакт 80 PM7 — Port M bit 7
Контакт 81 PS0 — Port S bit 0 / SPI0SCK
Контакт 82 PS1 — Port S bit 1 / SPI0MOSI
Контакт 83 PS2 — Port S bit 2 / SPI0MISO
Контакт 84 PS3 — Port S bit 3 / SPI0SS
Контакт 85 PS4 — Port S bit 4 / SCI0TX
Контакт 86 PS5 — Port S bit 5 / SCI0RX
Контакт 87 PS6 — Port S bit 6 / SCI1TX
Контакт 88 PS7 — Port S bit 7 / SCI1RX
Контакт 89 PQ0 — Port Q bit 0 / SPI1SCK
Контакт 90 PQ1 — Port Q bit 1 / SPI1MOSI
Контакт 91 PQ2 — Port Q bit 2 / SPI1MISO
Контакт 92 PQ3 — Port Q bit 3 / SPI1SS
Контакт 93 PQ4 — Port Q bit 4
Контакт 94 PQ5 — Port Q bit 5
Контакт 95 PQ6 — Port Q bit 6
Контакт 96 PQ7 — Port Q bit 7
Контакт 97 PR0 — Port R bit 0 / TIM0IOC0
Контакт 98 PR1 — Port R bit 1 / TIM0IOC1
Контакт 99 PR2 — Port R bit 2 / TIM0IOC2
Контакт 100 PR3 — Port R bit 3 / TIM0IOC3
Контакт 101 PR4 — Port R bit 4 / TIM0IOC4
Контакт 102 PR5 — Port R bit 5 / TIM0IOC5
Контакт 103 PR6 — Port R bit 6 / TIM0IOC6
Контакт 104 PR7 — Port R bit 7 / TIM0IOC7
Контакт 105 PU0 — Port U bit 0
Контакт 106 PU1 — Port U bit 1
Контакт 107 PU2 — Port U bit 2
Контакт 108 PU3 — Port U bit 3
Контакт 109 PU4 — Port U bit 4
Контакт 110 PU5 — Port U bit 5
Контакт 111 PU6 — Port U bit 6
Контакт 112 PU7 — Port U bit 7
Контакт 113 PV0 — Port V bit 0
Контакт 114 PV1 — Port V bit 1
Контакт 115 PV2 — Port V bit 2
Контакт 116 PV3 — Port V bit 3
Контакт 117 PV4 — Port V bit 4
Контакт 118 PV5 — Port V bit 5
Контакт 119 PV6 — Port V bit 6
Контакт 120 PV7 — Port V bit 7
Контакт 121 PW0 — Port W bit 0
Контакт 122 PW1 — Port W bit 1
Контакт 123 PW2 — Port W bit 2
Контакт 124 PW3 — Port W bit 3
Контакт 125 PW4 — Port W bit 4
Контакт 126 PW5 — Port W bit 5
Контакт 127 PW6 — Port W bit 6
Контакт 128 PW7 — Port W bit 7
Контакт 129 PE0 — Port E bit 0 / XIRQ
Контакт 130 PE1 — Port E bit 1 / IRQ
Контакт 131 PE2 — Port E bit 2
Контакт 132 PE3 — Port E bit 3
Контакт 133 PE4 — Port E bit 4
Контакт 134 PE5 — Port E bit 5
Контакт 135 PE6 — Port E bit 6
Контакт 136 PE7 — Port E bit 7
Контакт 137 PF0 — Port F bit 0
Контакт 138 PF1 — Port F bit 1
Контакт 139 PF2 — Port F bit 2
Контакт 140 PF3 — Port F bit 3
Контакт 141 PF4 — Port F bit 4
Контакт 142 PF5 — Port F bit 5
Контакт 143 PF6 — Port F bit 6
Контакт 144 PF7 — Port F bit 7

Типичное применение

MC9S12XA512CFV подходит для 7 применениеs: Automotive Body Control Module (BCM), CAN Gateway / Network Bridge, Industrial HVAC Control Unit, Instrument Cluster MCU, LIN Master Node Controller, Battery Management System (BMS) Slave Controller, Industrial Sensor Hub / Data Aggregator.

🚗

Automotive Body Control Module (BCM)

The MC9S12XA512CFV is well-suited to automotive BCM controllers where its 512KB Flash supports full feature firmware including lighting, door, and wiper logic while the XGATE coprocessor offloads CAN message servicing for deterministic bus response under heavy traffic. The 16-channel 10-bit ADC reads multiple switch and sensor inputs simultaneously, and the 8-channel PWM drives LED dimming and motor control outputs. Placed at the heart of the BCM, it operates from a 12V-regulated 5V rail at industrial temperature and integrates CAN/LIN gateway functions.

🌐

CAN Gateway / Network Bridge

The MC9S12XA512CFV's XGATE coprocessor and multiple msCAN modules make it ideal for CAN-to-CAN gateway and CAN-to-LIN bridge designs where message throughput is critical. The 40MHz CPU12 core handles protocol translation while XGATE independently services incoming CAN frames at bus rate without CPU intervention. The 512KB Flash comfortably stores full routing tables and gateway firmware, and the industrial temperature rating supports under-hood deployments. Use dual msCAN + LIN master mode to bridge high-speed CAN powertrain to low-speed CAN body.

🏭

Industrial HVAC Control Unit

The MC9S12XA512CFV delivers sufficient compute and peripheral set for HVAC control boards driving multi-stage compressors, blower motors, and damper actuators. Its 16-channel ADC samples temperature, pressure, and humidity sensors with 10-bit resolution, while the 8-channel PWM generates variable-frequency motor drive signals. Industrial temperature rating (-40 C to +85 C) supports rooftop and outdoor equipment, and the 512KB Flash stores full PID control firmware plus diagnostic logs. Operates from a 24V-bus regulated 5V rail with low standby current.

📺

Instrument Cluster MCU

Instrument cluster designs leverage the MC9S12XA512CFV's PWM channels for gauge pointer drive, SPI for display controller interfacing, and CAN for vehicle network connectivity. The XGATE coprocessor handles the high-rate PWM update loop (often 1 kHz or higher for smooth needle motion) without CPU intervention, freeing CPU12 to manage stepper motor sequences and LCD backlight. Industrial temperature rating suits dashboard environments that experience direct sunlight heating.

🧩

LIN Master Node Controller

LIN master nodes that orchestrate multiple slave devices (window regulators, mirror adjusters, seat controllers) benefit from the MC9S12XA512CFV's SCI/UART channels for LIN communication and PWM outputs for slave device control. The 512KB Flash stores full LIN descriptor tables and node configuration files, and the XGATE handles LIN break/sync detection timing. Industrial temperature and wide supply range allow direct connection to 12V automotive battery rails via onboard regulation.

⚡

Battery Management System (BMS) Slave Controller

Within a distributed BMS architecture, the MC9S12XA512CFV can serve as a slave cell-monitoring controller that reads cell voltages through the 16-channel ADC, balances cells via PWM-driven switches, and reports pack status to the master BMS via CAN or SPI. Its industrial temperature rating supports under-hood pack environments. The 40 MHz core and XGATE allow simultaneous cell voltage sampling and CAN frame transmission at full pack event rates.

🔧

Industrial Sensor Hub / Data Aggregator

Industrial IoT sensor hubs aggregating multiple field-bus inputs (CAN, SPI, analog) can use the MC9S12XA512CFV as a low-cost aggregation MCU. Its multiple communication peripherals and 16-channel ADC handle heterogeneous sensor inputs while the XGATE pre-processes data for forwarding to upstream controllers via Ethernet or CAN. The 512KB Flash stores sensor calibration tables and protocol translation stacks, and the wide 3.15V-5.5V supply range accepts battery and bus power directly.

Сводка рекомендуемых товаров

MC9S12XA512CAGR Same die, AEC-Q100 automotive grade variant Используется в: Automotive Body Control Module (BCM) MC9S12XEP768CAG NXP Semiconductors Используется в: Automotive Body Control Module (BCM) S912XET512J2VAGR NXP Semiconductors Используется в: Automotive Body Control Module (BCM) MC9S12XEQ384CAG NXP Semiconductors Используется в: CAN Gateway / Network Bridge S912XEG384J2VAL NXP Semiconductors Используется в: CAN Gateway / Network Bridge S9S12XF384J2MLMR NXP Semiconductors Используется в: CAN Gateway / Network Bridge MC9S12A512CPVE NXP Semiconductors Используется в: Industrial HVAC Control Unit SPC5642AF2MLU1 NXP Semiconductors Используется в: Industrial HVAC Control Unit MC9S08DZ60F1CLH 8-bit companion for sensor front-end Используется в: Industrial HVAC Control Unit MC9S12XA512CFUE Same die, UE suffix variant for cluster module Используется в: Instrument Cluster MCU S912XET256J2VAG NXP Semiconductors Используется в: Instrument Cluster MCU MC9S12GC32VFAE NXP Semiconductors Используется в: Instrument Cluster MCU MC9S12DJ128MFUE NXP Semiconductors Используется в: LIN Master Node Controller S9S12VR48F2CLF NXP Semiconductors Используется в: LIN Master Node Controller MC9S08SH4MFK NXP Semiconductors Используется в: LIN Master Node Controller MC9S12XE256CAAR Lower Flash variant for smaller packs Используется в: Battery Management System (BMS) Slave Controller MC9S12A256CFUE NXP Semiconductors Используется в: Battery Management System (BMS) Slave Controller SPC5746BSK1MKU2 NXP Semiconductors Используется в: Battery Management System (BMS) Slave Controller MC9S12DT128MPVE NXP Semiconductors Используется в: Industrial Sensor Hub / Data Aggregator MCF52252CAF66 NXP Semiconductors Используется в: Industrial Sensor Hub / Data Aggregator STM32H563ZIT6 STMicroelectronics Используется в: Industrial Sensor Hub / Data Aggregator
What is the flash memory size of the MC9S12XA512CFV?
The MC9S12XA512CFV includes 512 KB (512K x 8) of on-chip Flash memory. According to the Freescale/NXP S12XA family reference manual, the Flash is organized in 512-byte-aligned sectors for efficient in-application reprogramming. This places it at the high-density tier of the S12XA family and supports full-featured CAN gateway and body-control firmware images.
What is the maximum CPU clock speed of the MC9S12XA512CFV?
The MC9S12XA512CFV CPU12 core operates at up to 40 MHz bus clock. The internal PLL can be configured to multiply the external oscillator reference up to that rate. This places the S12XA family in a competitive 16-bit MCU tier that delivers adequate throughput for body-control and HVAC firmware without resorting to 32-bit architectures.
What package does the MC9S12XA512CFV ship in?
The MC9S12XA512CFV ships in a 144-pin LFQFP (Low-profile Fine-pitch Quad Flat Pack), gull-wing, square 20x20 mm body. The 'CFV' suffix specifically denotes this LQFP-144 industrial-grade variant. Pin-compatible LQFP-144 footprint mates directly with the standard JEDEC land pattern used for other S12XA-family 144-pin parts.
Does the MC9S12XA512CFV include an XGATE coprocessor?
Yes. The MC9S12XA512CFV belongs to the HCS12X 'XA' subfamily, which integrates the XGATE coprocessor alongside the CPU12 core. XGATE executes peripheral-handling routines in parallel with the CPU, offloading CAN message servicing and ADC sequencing for deterministic interrupt response without burdening the main CPU.
What is the operating temperature range of the MC9S12XA512CFV?
The MC9S12XA512CFV is rated for industrial temperature operation from -40 C to +85 C, as indicated by the 'C' character in the device suffix. Designers targeting harsher environments must select the 'V' (automotive -40 C to +105 C) or 'M' (-40 C to +125 C) variants of the same family. Industrial-grade parts typically carry cost savings versus automotive-qualified equivalents.
Where can I buy the MC9S12XA512CFV online?
The MC9S12XA512CFV is in stock at multiple authorized distributors as of 2026-10-19, including LCSC, Vyrian, Utmel, and Partstack per distributor listings. Tier-1 franchised distributors (DigiKey, Mouser) also carry the part under NXP's franchise network. Pricing scales from approximately 28.50 USD at qty 1 down to 17.85 USD at qty 1000 based on current distributor listings.
What is the price of the MC9S12XA512CFV at 1000 pieces?
At the 1000-piece quantity break the MC9S12XA512CFV is listed at approximately 17.85 USD per unit as of 2026-10-19, based on aggregated distributor pricing. Lead time for full-reel quantities typically runs 6-10 weeks through authorized channels. Independent brokers can shorten lead time but carry counterfeit risk - request C-of-C and provenance documentation.
Is the MC9S12XA512CFV currently in stock?
Inventory is currently available at LCSC (14983 units listed in stock on 2026-10-19) and at several smaller distributors. NXP manufacturing lead time on the S12XA family is currently 12-16 weeks through franchised distribution. For high-volume production, place orders with 6-month forward coverage to avoid line-down risk during NXP allocation cycles.
What is the difference between the MC9S12XA512CFV and the MC9S12XA512MAG?
Both parts share the same 512 KB Flash density and 40 MHz CPU12 core. The MC9S12XA512CFV ships in a 144-pin LQFP (LFQFP) gull-wing industrial-grade package, whereas the MC9S12XA512MAG ships in a 144-pin MAPBGA ball-grid package. The MAG variant is preferred for space-limited designs requiring better thermal dissipation, while the CFV variant is preferred for hand-solder rework and prototype bring-up.
MC9S12XA512CFV vs MC9S12XA512CAGR - which is better for industrial control?
For industrial control boards with through-hole-friendly assembly, the MC9S12XA512CFV (LQFP-144) is the better choice - its gull-wing leads are easier to inspect and rework. The MC9S12XA512CAGR is a 144-pin LQFP but in automotive grade. Choose CFV for industrial control, CAGR for automotive body modules. Both share identical peripheral mappings, allowing firmware reuse.
When should I choose the MC9S12XA512CFV over the MC9S12A512CPVE?
Choose the MC9S12XA512CFV when you need the XGATE coprocessor for parallel peripheral servicing and full CAN gateway throughput. The MC9S12A512CPVE is a non-X variant (S12A family) in 112-pin LQFP, lacking XGATE. If your design only needs single-CPU CAN handling and you can reduce pin count, the MC9S12A512CPVE offers cost savings; otherwise stay on the S12XA family.
What is the best drop-in replacement for the MC9S12XA512CFV?
The best drop-in replacement for the MC9S12XA512CFV is the MC9S12XA512CFV itself from a different date-code lot, or the MC9S12XA512CAGR (AEC-Q100 automotive-grade variant in the same LQFP-144 footprint). Both share the same peripheral set, Flash density, and XGATE architecture. For memory expansion, the MC9S12XEP768CAG offers 768 KB Flash in a different LQFP package pinout, requiring PCB rework.
Where to download the MC9S12XA512CFV datasheet PDF?
The MC9S12XA512CFV datasheet can be downloaded from AllDatasheet (1350-page S12XD/S12XB/S12XA family reference), from NXP's official product page under the S12XA family documentation, and from distributor-hosted technical PDFs. The reference manual covers the S12XA family in full, with the MC9S12XA512CFV-specific electrical characteristics in the device datasheet chapter.
Where can I find the MC9S12XA512CFV pinout?
The MC9S12XA512CFV pinout is published in the S12XA family reference manual (PDF, 1350 pages) covering the full S12XD/S12XB/S12XA family. The 144-pin LQFP variant assigns pins per the LFQFP144 column in the device-specific chapter. Cross-reference tools on distributor sites (Findchips, Octopart) also display the pinout summary. Always verify against the latest revision before PCB layout.
What are the key specifications of the MC9S12XA512CFV that engineers should know?
The MC9S12XA512CFV delivers 512 KB Flash, 40 MHz CPU12 core, integrated XGATE coprocessor, 144-pin LFQFP package, industrial temperature grade (-40 C to +85 C), and 3.15 V to 5.5 V single-supply operation. The HCS12X 'XA' subfamily supports msCAN, SPI/SCI, 16-channel 10-bit ADC, and 8-channel PWM. These parameters collectively position it as a mid-range 16-bit MCU for automotive body and industrial control.

Справочные инженерные данные для MC9S12XA512CFV — сравнение, рекомендации по проектированию и информация о соответствии.

Руководство по выбору

Choose the MC9S12XA512CFV when designing automotive body control modules, CAN gateways, or industrial HVAC controllers that need 512KB Flash, XGATE coprocessor assistance for parallel peripheral servicing, and the LQFP-144 footprint for prototype-friendly assembly. Choose the MC9S12XA512CAGR (automotive AEC-Q100) when targeting under-hood or safety-critical automotive deployments. Choose the MC9S12XEQ384CAG (384KB Flash) for cost-sensitive nodes with smaller firmware images. Choose the S912XET512BMAGR (MAPBGA) for space-constrained designs that need better heat-sinking and smaller board area. All five alternatives share the same S12X CPU12 + XGATE architecture, allowing firmware reuse with minimal recompilation.

Сравнение с аналогами

Параметр Этот товар MC9S12XA512CAGR MC9S12XA512CFUE MC9S12XEQ384CAG S912XET512BMAGR
Brand NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors
Package 144-pin LQFP (LFQFP) 144-pin LQFP (LFQFP) - same 144-pin LQFP (LFQFP) - same 144-pin LQFP - same 144-pin MAPBGA - different land pattern
Flash Memory 512 KB 512 KB 512 KB 384 KB (-25%) 512 KB
CPU Clock 40 MHz 40 MHz 40 MHz 50 MHz 50 MHz
Temperature Grade Industrial (-40 to +85 C) Automotive (AEC-Q100) Industrial extended Automotive (AEC-Q100) Automotive (AEC-Q100)
XGATE Coprocessor Yes Yes Yes Yes (enhanced eQTM) Yes
Family S12XA S12XA S12XA S12XE S12XET
Approx Unit Price (qty 1) 28.50 USD 32.00 USD 29.50 USD 26.00 USD 30.00 USD

Ключевые отличия

  • Largest Flash density in S12XA family in LQFP-144 (против MC9S12XEQ384CAG)
  • Industrial-grade vs automotive-grade cost savings (против MC9S12XA512CAGR)
  • LQFP-144 vs MAPBGA footprint compatibility (против S912XET512BMAGR)

Заметки по проектированию

The MC9S12XA512CFV requires a stable 5.0V (3.15-5.5V) supply on VDD/VDDX with bulk decoupling of at least 10uF tantalum and 100nF ceramic per supply pin pair. Place decoupling capacitors within 5mm of each VDD/VSS pair on the PCB. The on-chip voltage regulator (VDDR) requires an external bypass capacitor on the regulator output pin. Brown-out reset threshold must be enabled in the configuration register to ensure clean resets during supply droops.

The 144-pin LQFP (LFQFP) package has a 0.5mm pitch gull-wing lead. Follow JEDEC MS-026 land pattern recommendations with 0.27mm pad width and 1.5mm pad length. Use 4-layer PCB with continuous ground plane under the package for thermal dissipation and EMI suppression. Route high-speed signals (CAN, SPI) with 50-ohm controlled impedance and avoid crossing noisy PWM traces over analog ADC inputs to minimize coupling.

Do not leave the BKGD (background debug) pin floating - it must be tied high through a resistor to VDDX for normal operation, or pulled low by the debugger during programming. The MODC pin must be held high during reset for normal single-chip mode. The XCLKS pin selects the clock mode and must match the oscillator configuration in firmware - mismatch will prevent startup. Verify the part's reset vector and COP watchdog configuration match your firmware linker script.

Информация о соответствии

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
Без свинца
Yes
Без галогенов
Unknown
Конфликтные минералы
Compliant

Industrial temperature grade; not AEC-Q100 qualified - choose MC9S12XA512CAGR for automotive. RoHS and lead-free confirmed per NXP product page.

Данные проверены: 2026-10-19 — данные проверены и курируются командой компонентной инженерии XAIPART

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Связанные компоненты & термины

NXP Semiconductors Freescale Semiconductor MC9S12XA512CFV MC9S12XA512CAGR MC9S12XEQ384CAG S912XET512BMAGR MC9S12XA256CAAR HCS12X CPU12 core XGATE coprocessor 16-bit microcontroller LQFP-144 LFQFP package automotive body control module CAN gateway msCAN module RoHS compliant AEC-Q100 industrial temperature grade JEDEC MS-026
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