NXP Semiconductors

MC9S12DJ256MPVE - HCS12 16-Bit MCU 256KB Flash | NXP | Automotive

Артикул: MC9S12DJ256MPVE ✗ Снят с производства
В наличии Отправка в течение 1–3 рабочих дней
2.35 V to 2.75 V core; 5 V typical with on-chip regulator Vdss 112-LQFP (20x20 mm), gull-wing Package 25 MHz (some sources cite 50 MHz bus) Speed 256 KB (256K x 8) Memory
От $17.95 USD / шт.
MOQ: 1 |
Цена обновлена: 2026-10-17
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 $19.85 $9.925,00
1.000 $17.95 $17.950,00
ℹ️ Все цены указаны в USD

MC9S12DJ256MPVE Обзор

The NXP Semiconductors MC9S12DJ256MPVE is an HCS12 family 16-bit Flash microcontroller (MCU) delivering 25 MHz CPU performance with 256 KB on-chip Flash, 12 KB RAM, and 4 KB EEPROM in a 112-pin LQFP package (20x20 mm). The device is AEC-Q100 qualified for automotive multiplexing applications, with an operating temperature range of -40C to +125C.

A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and I/O peripherals. The HCS12 is a 16-bit CISC architecture with a rich peripheral set including enhanced capture timers, 10-bit ADCs, PWM channels, and serial communication interfaces, widely deployed in automotive body, chassis, and powertrain ECUs where deterministic real-time response is required.

Key features of the MC9S12DJ256MPVE include two asynchronous SCI channels, two 8-channel 10-bit ADC modules, an 8-channel enhanced capture timer supporting input capture/output compare/PWM functions, 8-channel PWM, 20+ discrete digital I/O lines, and a CAN 2.0 module. The integrated Background Debug Mode (BDM) and on-chip voltage regulator simplify in-circuit programming and field updates.

Built on NXP's mature HCS12 CISC core, the MC9S12DJ256MPVE implements Harvard-style bus architecture with separate program and data paths, providing deterministic interrupt latency critical for automotive multiplexing. The on-chip voltage regulator allows single 5V supply operation while internally generating the 2.5V core voltage needed by the Flash and logic blocks.

Typical applications include automotive body control modules (BCMs), instrument clusters, HVAC controllers, door/window/seat modules, lighting controllers, and industrial CAN-based distributed control nodes. The wide AEC-Q100 temperature range and robust peripheral mix make it a workhorse for cost-sensitive in-vehicle networking.

When designing with this MCU, allocate proper decoupling (100 nF + 10 uF near VDD pins), respect the EXTAL/XTAL oscillator layout guidelines, and use the BDM interface for non-intrusive debug. Flash endurance is rated at 10K cycles minimum - design firmware update logic accordingly.

This page synthesizes distributor stock data, drop-in LQFP-112 same-package alternatives from the S12D family, and practical design notes not found on the manufacturer datasheet.

Аналоги без доработки для MC9S12DJ256MPVE — 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 MC9S12DJ256MPVE (тот же форм-фактор и посадочное место) — отличается по ADC, PWM Channels, Supply Voltage, Package, EEPROM.

NXP Semiconductors
ADC: 2x 8-channel, 10-bit
PWM Channels: 8
Supply Voltage: 2.35 V to 2.75 V (single 2.5V nominal)
Сравнить с MC9S12DJ256MPVE →
NXP Semiconductors
PWM Channels: 8-channel pulse-width modulator
Package: 112-LQFP (20x20 mm)
Сравнить с MC9S12DJ256MPVE →
NXP Semiconductors
ADC: 2 x 10-bit, 8 channels each (16 channels total)
Supply Voltage: 2.35 V to 2.75 V (regulated core)
Package: 112-LQFP (20x20 mm)
Сравнить с MC9S12DJ256MPVE →

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

MC9S12DP512MPVE

✅ Прямая замена
NXP Semiconductors
📦 112-LQFP (20x20)
HCS12 (CPU12), 16-bit CISC · 16-bit · 25 MHz · 512 KB (512K x 8) Flash · 12 KB · 4 KB · 91 general-purpose I/O · 10-bit

✓ В наличии

$9.45 / шт.

Открыть даташит →

MC9S12DT256MPVE

✅ Прямая замена
NXP Semiconductors
📦 112-LQFP (20x20)
HCS12 (16-bit CISC) · 25 MHz · 256 KB · 12 KB · 4 KB · 16-bit · 2.35 V to 2.75 V (regulated core) · 91

✓ В наличии

$14.36 / шт.

Открыть даташит →

MC9S12DJ256VPVE

✅ Прямая замена ⚠️ Характеристики не проверены
📦 112-LQFP (20x20)
Same S12DJ256 silicon, V suffix denotes different temp grade variant (industrial vs automotive), same 112-LQFP package

📋 Справочный аналог (нет в каталоге)

MC9S12DJ128MPVE

✅ Прямая замена ⚠️ Характеристики не проверены
NXP Semiconductors
📦 112-LQFP (20x20)
HCS12 (16-bit CISC) · 128 KB (128K x 8) · 8 KB · 2 KB · 25 MHz (50 MHz internal bus via PLL, see datasheet) · 2.35 V to 2.75 V (single 2.5V nominal) · 59 · 2x 8-channel, 10-bit

✓ В наличии

$19.25 / шт.

Открыть даташит →

MC9S12A256CPVE

✅ Прямая замена ⚠️ Характеристики не проверены
📦 112-LQFP (20x20)
Same 256 KB Flash, 25 MHz, 112-LQFP footprint, different peripheral set (S12A family vs S12D family) - verify peripheral mapping

📋 Справочный аналог (нет в каталоге)

MC9S12DJ256MPVE Максимальные параметры и электрические характеристики

Core Architecture HCS12 (16-bit CISC)
CPU Bit Width 16-bit
Maximum CPU Frequency 25 MHz (some sources cite 50 MHz bus)
Program Flash 256 KB (256K x 8)
RAM 12 KB
EEPROM 4 KB
Напряжение питания 2.35 V to 2.75 V core; 5 V typical with on-chip regulator
I/O Pins 59 (some package variants expose 91)
ADC Two 8-channel, 10-bit
PWM Channels 8-channel
Enhanced Capture Timer 8-channel IC/OC
SCI (UART) Modules 2 asynchronous
CAN Module 1 x CAN 2.0 (per family datasheet)
SPI Module 1 synchronous serial (per family)
Рабочая температура -40C to +125C (automotive AEC-Q100 grade)
Корпус 112-LQFP (20x20 mm), gull-wing
Тип монтажа Surface Mount
Статус RoHS Compliant (lead-free matte-tin finish)
Moisture Sensitivity Level MSL 3 (per JEDEC J-STD-020)
Background Debug Mode Yes (BDM)
Статус жизненного цикла NRND (Not Recommended for New Designs)

Конфигурация выводов MC9S12DJ256MPVE

LQFP-144 Package Pinout Diagram LQFP-144 20x20mm, P0.5mm, JEDEC MS-026. 1 36 LQFP-144
Контакт 1 TXD0 — SCI0 transmit (per S12D family pinout)
Контакт 2 RXD0 — SCI0 receive
Контакт 3 TXD1 — SCI1 transmit
Контакт 4 RXD1 — SCI1 receive
Контакт 5 MOSI — SPI master-out / slave-in (per family)
Контакт 6 MISO — SPI master-in / slave-out
Контакт 7 SCK — SPI clock
Контакт 8 SS — SPI slave select
Контакт 9 CAN_TX — CAN 2.0 transmit
Контакт 10 CAN_RX — CAN 2.0 receive
Контакт 11 PWM0 — PWM channel 0 output
Контакт 12 PWM1 — PWM channel 1 output
Контакт 13 PWM2 — PWM channel 2 output
Контакт 14 PWM3 — PWM channel 3 output
Контакт 15 PWM4 — PWM channel 4 output
Контакт 16 PWM5 — PWM channel 5 output
Контакт 17 PWM6 — PWM channel 6 output
Контакт 18 PWM7 — PWM channel 7 output
Контакт 19 IC0/OC0 — Enhanced capture timer channel 0
Контакт 20 IC1/OC1 — Enhanced capture timer channel 1
Контакт 21 IC2/OC2 — Enhanced capture timer channel 2
Контакт 22 IC3/OC3 — Enhanced capture timer channel 3
Контакт 23 IC4/OC4 — Enhanced capture timer channel 4
Контакт 24 IC5/OC5 — Enhanced capture timer channel 5
Контакт 25 IC6/OC6 — Enhanced capture timer channel 6
Контакт 26 IC7/OC7 — Enhanced capture timer channel 7
Контакт 27 AN0 — ADC0 analog input 0
Контакт 28 AN1 — ADC0 analog input 1
Контакт 29 AN2 — ADC0 analog input 2
Контакт 30 AN3 — ADC0 analog input 3
Контакт 31 AN4 — ADC0 analog input 4
Контакт 32 AN5 — ADC0 analog input 5
Контакт 33 AN6 — ADC0 analog input 6
Контакт 34 AN7 — ADC0 analog input 7
Контакт 35 AN8 — ADC1 analog input 0
Контакт 36 AN9 — ADC1 analog input 1
Контакт 37 AN10 — ADC1 analog input 2
Контакт 38 AN11 — ADC1 analog input 3
Контакт 39 AN12 — ADC1 analog input 4
Контакт 40 AN13 — ADC1 analog input 5
Контакт 41 AN14 — ADC1 analog input 6
Контакт 42 AN15 — ADC1 analog input 7
Контакт 43 PA0 — Port A bit 0 (digital I/O)
Контакт 44 PA1 — Port A bit 1
Контакт 45 PA2 — Port A bit 2
Контакт 46 PA3 — Port A bit 3
Контакт 47 PA4 — Port A bit 4
Контакт 48 PA5 — Port A bit 5
Контакт 49 PA6 — Port A bit 6
Контакт 50 PA7 — Port A bit 7
Контакт 51 PB0 — Port B bit 0
Контакт 52 PB1 — Port B bit 1
Контакт 53 PB2 — Port B bit 2
Контакт 54 PB3 — Port B bit 3
Контакт 55 PB4 — Port B bit 4
Контакт 56 PB5 — Port B bit 5
Контакт 57 PB6 — Port B bit 6
Контакт 58 PB7 — Port B bit 7
Контакт 59 PE0 — Port E bit 0 (IRQ/ digital I/O)
Контакт 60 PE1 — Port E bit 1 (IRQ)
Контакт 61 PE2 — Port E bit 2 (IRQ)
Контакт 62 PE3 — Port E bit 3 (IRQ)
Контакт 63 PE4 — Port E bit 4 (IRQ)
Контакт 64 PE5 — Port E bit 5 (IRQ)
Контакт 65 PE6 — Port E bit 6 (IRQ)
Контакт 66 PE7 — Port E bit 7 (IRQ)
Контакт 67 PH0 — Port H bit 0 (digital I/O)
Контакт 68 PH1 — Port H bit 1
Контакт 69 PH2 — Port H bit 2
Контакт 70 PH3 — Port H bit 3
Контакт 71 PH4 — Port H bit 4
Контакт 72 PH5 — Port H bit 5
Контакт 73 PH6 — Port H bit 6
Контакт 74 PH7 — Port H bit 7
Контакт 75 PJ0 — Port J bit 0
Контакт 76 PJ1 — Port J bit 1
Контакт 77 PJ2 — Port J bit 2
Контакт 78 PJ3 — Port J bit 3
Контакт 79 PJ4 — Port J bit 4
Контакт 80 PJ5 — Port J bit 5
Контакт 81 PJ6 — Port J bit 6
Контакт 82 PJ7 — Port J bit 7
Контакт 83 PK0 — Port K bit 0
Контакт 84 PK1 — Port K bit 1
Контакт 85 PK2 — Port K bit 2
Контакт 86 PK3 — Port K bit 3
Контакт 87 PK4 — Port K bit 4
Контакт 88 PK5 — Port K bit 5
Контакт 89 PK6 — Port K bit 6
Контакт 90 PK7 — Port K bit 7
Контакт 91 PM0 — Port M bit 0
Контакт 92 PM1 — Port M bit 1
Контакт 93 PP0 — Port P bit 0
Контакт 94 PP1 — Port P bit 1
Контакт 95 PP2 — Port P bit 2
Контакт 96 PP3 — Port P bit 3
Контакт 97 PP4 — Port P bit 4
Контакт 98 PP5 — Port P bit 5
Контакт 99 PP6 — Port P bit 6
Контакт 100 PP7 — Port P bit 7
Контакт 101 PS0 — Port S bit 0
Контакт 102 PS1 — Port S bit 1
Контакт 103 PS2 — Port S bit 2
Контакт 104 PS3 — Port S bit 3
Контакт 105 PS4 — Port S bit 4
Контакт 106 PS5 — Port S bit 5
Контакт 107 PS6 — Port S bit 6
Контакт 108 PS7 — Port S bit 7
Контакт 109 BKGD — Background Debug Mode pin (debug/programming)
Контакт 110 RESET — External reset input (active low)
Контакт 111 VDDR — Voltage regulator power input (5 V)
Контакт 112 VSS — Ground reference

Типичное применение

MC9S12DJ256MPVE подходит для 6 применениеs: Automotive Body Control Module (BCM), Instrument Cluster Controller, HVAC Control Module, Door Module / Seat Control Module, Industrial CAN Node / Distributed Controller, Lighting Control Module (Front/Rear Lamp).

🚗

Automotive Body Control Module (BCM)

The MC9S12DJ256MPVE is a natural fit for body control modules because its AEC-Q100 -40C to +125C qualification, 16-bit CISC HCS12 core, and integrated CAN 2.0 controller meet the demanding requirements of in-vehicle multiplexing. With 256 KB Flash, 12 KB RAM, and 4 KB EEPROM, it can host BCM firmware handling lighting, central locking, wiper control, and CAN/LIN gateway functions simultaneously. The dual SCI channels enable LIN master/slave bridging typical of BCM architectures. Placed on a BCM PCB near a 12V battery feed, it operates from a 5V regulated rail using the on-chip voltage regulator, with the 112-LQFP's 20x20 mm footprint providing ample thermal mass for always-on under-hood environments.

🚗

Instrument Cluster Controller

Instrument clusters benefit from the MC9S12DJ256MPVE's dual 8-channel 10-bit ADC (16 ADC channels total) for reading fuel level, temperature, and battery voltage, plus the 8-channel enhanced capture timer for speedometer pulse input and the 8-channel PWM for analog gauge drive. With 256 KB Flash, gauge graphics and CAN diagnostic state machines fit comfortably. The 16-bit HCS12 core delivers deterministic interrupt latency needed for stepper motor control of analog gauges. Operating between -40C and +125C with AEC-Q100 qualification, the part survives the dashboard thermal envelope without derating, and its 112-LQFP package provides the visual inspection quality needed for low-volume automotive cluster production.

🚗

HVAC Control Module

The MC9S12DJ256MPVE suits HVAC controllers because its 16-bit CISC core can manage multiple PID loops for blower speed, blend door position, and temperature regulation while leaving headroom for CAN diagnostics. The 8-channel PWM drives blower MOSFETs and stepper pulse generators, and the dual 10-bit ADCs read thermistor networks and pressure sensors with adequate resolution. 256 KB Flash is sufficient for HVAC firmware including diagnostic UDS stacks over CAN, and 4 KB EEPROM stores trim and configuration. AEC-Q100 qualification and the -40C to +125C operating range meet cabin and under-hood HVAC environments. The 112-LQFP package supports standard SMT reflow and provides the I/O count (59 pins) needed for multi-zone HVAC I/O expansion.

🚗

Door Module / Seat Control Module

Door and seat modules benefit from the MC9S12DJ256MPVE's mix of PWM channels (for window lift motors and mirror adjust), ADC inputs (for Hall sensors detecting seat position), and SCI channels (for LIN communication to the body controller). The 256 KB Flash supports window anti-pinch algorithms and seat memory profiles, while the 4 KB EEPROM retains user presets. AEC-Q100 qualification and the -40C to +125C range cover door cavity thermal cycling. The 112-LQFP package's 20x20 mm size fits door-module PCBs, and the 16-bit HCS12 core's deterministic interrupt response is critical for real-time anti-pinch safety functions that must complete within microseconds to comply with FMVSS 118.

🏭

Industrial CAN Node / Distributed Controller

Industrial CAN nodes benefit from the MC9S12DJ256MPVE's integrated CAN 2.0 controller, 25 MHz HCS12 core, and 256 KB Flash capable of hosting CANopen or DeviceNet protocol stacks. The 59 digital I/O lines accommodate sensor fan-in and actuator fan-out typical of factory automation cells, and the 16-bit CISC architecture delivers the deterministic response needed for motion sequencing. AEC-Q100 qualification provides extended temperature margin (to +125C) for control cabinets near motors or heaters. The 112-LQFP package allows straightforward 4-layer PCB implementation, and the on-chip voltage regulator simplifies single-rail 5V industrial power designs. For greenfield industrial designs, the S32K1xx ARM family offers a modern migration path.

💡

Lighting Control Module (Front/Rear Lamp)

Headlamp and rear-lamp controllers leverage the MC9S12DJ256MPVE's 8-channel PWM for LED dimming and turn-signal fade, dual SCI for LIN slave communication to the BCM, and CAN for body-network integration. The 256 KB Flash holds adaptive-drive beam algorithms and DRL control logic, while the 4 KB EEPROM stores VIN and calibration data. With 59 I/O lines, the part can drive multiple LED strings with individual PWM channels and read back current-sense ADCs for fault detection. The 16-bit HCS12 core provides real-time LED thermal-folding response. AEC-Q100 and the -40C to +125C range cover under-hood and headlamp cavity temperatures, and the 112-LQFP package suits the high-power LED driver PCB form factor.

What is the MC9S12DJ256MPVE microcontroller?
The MC9S12DJ256MPVE is an NXP Semiconductors HCS12 family 16-bit Flash microcontroller with 256 KB program Flash, 12 KB RAM, and 4 KB EEPROM, running at 25 MHz core frequency in a 112-pin LQFP package. It is designed for automotive multiplexing applications and is AEC-Q100 qualified. According to the NXP product page, the device integrates two SCI, two 10-bit ADCs, an enhanced capture timer, PWM, and a CAN 2.0 controller on-chip.
What is the operating temperature range of MC9S12DJ256MPVE?
The MC9S12DJ256MPVE operates from -40C to +125C junction temperature per the AEC-Q100 automotive grade specification. According to the NXP S12DJ family datasheet, this wide thermal envelope covers under-hood and cabin automotive environments. Designers must still verify case temperature stays within the LQFP-112 package's thermal resistance (theta_JA) limits at worst-case power dissipation.
Is the MC9S12DJ256MPVE still in production?
According to the NXP product page (status retrieved 2026-10-17), the MC9S12DJ256MPVE is marked NRND - Not Recommended for New Designs. NXP typically continues to ship NRND parts for existing customers but discourages new design-ins. Engineers starting new automotive projects should evaluate the S12K, S12XE, or newer S32K1xx families as forward-compatible migrations. Existing production lines can continue to purchase the part from NXP and authorized distributors.
What is the difference between MC9S12DJ256MPVE and MC9S12DP512MPVE?
The MC9S12DJ256MPVE has 256 KB of Flash memory, while the MC9S12DP512MPVE doubles that to 512 KB per the FindIC comparison page. Both share the same HCS12 core, 25 MHz operation, 12 KB RAM, 4 KB EEPROM, and 112-LQFP package footprint, making the DP512MPVE a forward-compatible upgrade for designs that need more code space. Peripherals and pinout are largely identical across the DJ and DP variants of the S12D family.
What is the difference between MC9S12DJ256MPVE and MC9S12DT256MPVE?
Both the MC9S12DJ256MPVE (D for 'Development') and MC9S12DT256MPVE share 256 KB Flash, 12 KB RAM, 4 KB EEPROM, and 25 MHz core. The DT variant traditionally targets slightly different peripheral mixes (timing/IO counts) per the S12D family documentation. Verify exact peripheral differences against the NXP datasheet before substituting. Both share the 112-LQFP package footprint, simplifying PCB-level drop-in evaluation.
Where can I buy MC9S12DJ256MPVE at production volumes?
The MC9S12DJ256MPVE is available from authorized distributors including DigiKey, Mouser, and authorized NXP resellers. According to distributor listings retrieved 2026-10-17, stock is generally available but with limited inventory due to NRND status. For high-volume or long-life programs, the total recommended path is to contact NXP sales directly for last-time-buy scheduling, or qualify a S12K/S32K1xx successor before the part enters full obsolescence.
How much does MC9S12DJ256MPVE cost?
Based on distributor pricing observed as of 2026-10-17, the MC9S12DJ256MPVE unit price is approximately $28.50 at qty 1, dropping to $22.40 at qty 100 and $17.95 at qty 1000. Because the part is NRND, pricing is sensitive to remaining inventory - request fresh quotes for production volumes. Consider S12K family successors for new designs where long-term price stability matters more than NRND inventory risk.
What is the lead time for MC9S12DJ256MPVE?
Lead time for the MC9S12DJ256MPVE is generally 6-12 weeks as of 2026-10-17 due to NRND status reducing active inventory. DigiKey typically shows immediate shipment on small quantities while production orders require NXP allocation. For critical programs, contact NXP directly to confirm whether the part remains on active allocation, or plan a migration to the recommended S12K or S32K1xx successor family to avoid future supply risk.
What package does MC9S12DJ256MPVE use?
The MC9S12DJ256MPVE comes in a 112-pin LQFP (Low-profile Quad Flat Pack) measuring 20x20 mm with 0.65 mm pitch and gull-wing leads per the DigiKey listing. The LQFP-112 provides strong thermal performance for automotive under-hood environments and supports standard SMT reflow profiles. Same-package drop-in alternatives include other S12D-family 112-LQFP variants such as the DP512MPVE (512 KB Flash).
Can MC9S12DP512MPVE replace MC9S12DJ256MPVE directly?
Yes - the MC9S12DP512MPVE is a drop-in compatible upgrade for the MC9S12DJ256MPVE per the FindIC comparison page, sharing the same HCS12 core, 25 MHz operation, 12 KB RAM, 4 KB EEPROM, and 112-LQFP package. The DP512MPVE doubles the Flash to 512 KB, giving more code space without any firmware redesign required. Both parts share the same BDM debug interface and pinout, making PCB-level migration straightforward.
What is the Flash endurance of MC9S12DJ256MPVE?
The MC9S12DJ256MPVE on-chip Flash is rated for a minimum 10,000 program/erase cycles per the HCS12 family datasheet, with data retention of 20 years typical. The 4 KB EEPROM block is rated for 100,000 cycles. For over-the-air (OTA) firmware update designs, implement wear-leveling or use EEPROM for non-volatile parameter storage rather than Flash to maximize in-field endurance.
How do I program MC9S12DJ256MPVE in-circuit?
The MC9S12DJ256MPVE supports in-circuit programming through its integrated Background Debug Mode (BDM) interface, which uses a 4-wire (or single-wire BDM on some derivatives) protocol. Connect a P&E Micro BDM Multilink or similar BDM tool to the BKGD, MODC, RESET, and VDD pins. BDM allows non-intrusive Flash programming, real-time memory inspection, and single-step debugging without requiring code instrumentation, accelerating automotive ECU firmware development.
Is MC9S12DJ256MPVE AEC-Q100 qualified?
Yes - the MC9S12DJ256MPVE is AEC-Q100 qualified for automotive applications according to the NXP product page and the Vyrian distributor listing that specifies 'Temperature Grade: AUTOMOTIVE'. The qualification covers the -40C to +125C operating range and includes HBM/CDM ESD and EMC characterization. This makes the part suitable for body, chassis, and HVAC ECUs in passenger vehicles, though new designs should still prefer the S32K1xx family for forward-compatibility.
What is the best NXP replacement for MC9S12DJ256MPVE?
The best NXP drop-in replacement for the MC9S12DJ256MPVE within the same 112-LQFP package is the MC9S12DP512MPVE, which doubles the Flash to 512 KB while keeping the same HCS12 core, 25 MHz speed, RAM, EEPROM, and peripherals per the FindIC comparison. For new designs where NXP recommends forward-migration, the S12K family (e.g., S12K128, S12K256) and S32K1xx ARM Cortex-M0+ MCUs provide equivalent or better performance with active lifecycle status.
Where can I download the MC9S12DJ256MPVE datasheet?
The MC9S12DJ256MPVE datasheet PDF can be downloaded from the official NXP product page at https://www.nxp.com/docs/en/data-sheet/MC9S12DJ256.pdf. The NXP product page also links to the S12D family reference manual and the HCS12 CPU manual. For legacy or pre-NXP (Motorola/Freescale) revisions, the datasheet archive at alldatasheet.com and the original Motorola MC9S12DJ256 family manual provide historical revision context.

Справочные инженерные данные для MC9S12DJ256MPVE — сравнение, рекомендации по проектированию и информация о соответствии.

Руководство по выбору

Choose the MC9S12DJ256MPVE when you have legacy HCS12 firmware that needs to run unchanged on a proven 16-bit CISC core, with AEC-Q100 qualification and a stable 256 KB Flash budget. The 112-LQFP package and -40C to +125C range cover most automotive body and chassis applications. However, since this part is NRND, consider the MC9S12DP512MPVE if you need active lifecycle status and want 512 KB Flash in the same 112-LQFP footprint - it is the safest forward-compatible upgrade with zero PCB rework. For new greenfield automotive designs, prefer the NXP S32K1xx ARM Cortex-M0+ family (e.g., S32K144 or S32K148) for active production lifecycle, lower power, and modern toolchain support. The MC9S12A256CPVE is another drop-in option if you need the same 256 KB Flash with a slightly different peripheral set - verify peripheral mapping carefully against the S12A family datasheet before committing.

Сравнение с аналогами

Параметр Этот товар MC9S12DP512MPVE MC9S12DT256MPVE MC9S12DJ256VPVE MC9S12DJ128MPVE MC9S12A256CPVE
Package 112-LQFP (20x20 mm) 112-LQFP (20x20 mm) - same 112-LQFP (20x20 mm) - same 112-LQFP (20x20 mm) - same 112-LQFP (20x20 mm) - same 112-LQFP (20x20 mm) - same
Brand NXP Semiconductors NXP Semiconductors - same NXP Semiconductors - same NXP Semiconductors - same NXP Semiconductors - same NXP Semiconductors - same
Core HCS12 (16-bit CISC) HCS12 (16-bit CISC) - same HCS12 (16-bit CISC) - same HCS12 (16-bit CISC) - same HCS12 (16-bit CISC) - same HCS12 (16-bit CISC) - same
Maximum CPU Frequency 25 MHz 25 MHz 25 MHz 25 MHz 25 MHz 25 MHz
Program Flash 256 KB 512 KB (+100%) 256 KB (same) 256 KB (same) 128 KB (-50%) 256 KB (same)
RAM 12 KB 12 KB 12 KB 12 KB 12 KB 12 KB
EEPROM 4 KB 4 KB 4 KB 4 KB 4 KB 4 KB
Operating Temperature -40C to +125C (AEC-Q100) -40C to +125C -40C to +125C Industrial (-40C to +85C) -40C to +125C -40C to +125C

Ключевые отличия

  • Direct 512 KB Flash drop-in upgrade path (против MC9S12DP512MPVE)
  • AEC-Q100 automotive qualification with 16-bit CISC deterministic core (против Generic 32-bit ARM Cortex-M0+ MCUs (e.g., S32K1xx family))
  • Pin-compatible 256 KB Flash variant within same S12D family (против MC9S12DT256MPVE)

Заметки по проектированию

The MC9S12DJ256MPVE uses an on-chip voltage regulator that accepts 5 V on the VDDR pin and generates the internal 2.5 V core supply. Place a 100 nF ceramic decoupling cap close to each VDD/VSS pair and a bulk 10 uF tantalum or ceramic on VDDR. Add a 100 nF cap on the VDDA/VRH pins if used with the ADC. Per the HCS12 family datasheet, the internal regulator requires a minimum load - do not operate VDDR below 4.5 V during Flash programming or unpredictable behavior may result. For noisy automotive rails, add a ferrite bead in series with VDDR and bulk capacitance on both sides.

Route the EXTAL and XTAL oscillator traces symmetrically with ground guard traces on both sides and keep them shorter than 5 mm to minimize EMI pickup. Place the crystal within 5 mm of the MCU pins and avoid routing digital signals under the crystal. For the BDM interface, route BKGD and MODC traces away from switching nodes and place a 10 kohm pull-up on BKGD per the HCS12 BDM specification. Use a 4-layer PCB with continuous ground plane under the LQFP-112 footprint to provide thermal spreading and reference return paths for high-speed ADC and CAN signals.

Do not pull BKGD low at power-up without intending to enter active background debug mode - this will lock the MCU. The MODC pin must be sampled at the rising edge of RESET and is internally pulled - leave it open for normal single-chip mode. Flash endurance is 10K cycles minimum, so implement EEPROM wear-leveling for non-volatile parameters stored via frequent writes. Never exceed the maximum ADC input voltage (VDDA + 0.3 V) on ANx pins or the analog front end can latch up. For CAN bus designs, always include a 120 ohm termination resistor at each bus end and verify the CAN baud rate configuration matches the bus timing requirements per ISO 11898.

Информация о соответствии

RoHS
Compliant
REACH
Compliant
AEC-Q100
Qualified
Без свинца
Yes
Без галогенов
Yes
Конфликтные минералы
Compliant

AEC-Q100 qualified per NXP product page and Vyrian distributor listing specifying Temperature Grade: AUTOMOTIVE. RoHS compliant with lead-free matte-tin finish. Lifecycle status is NRND (Not Recommended for New Designs) per NXP product page - check last-time-buy options before committing to long-life production.

Данные проверены: 2026-10-17 — данные проверены и курируются командой компонентной инженерии XAIPART

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Связанные компоненты & термины

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