NXP Semiconductors

MC9S12DJ128MPVE - 16-bit HCS12 MCU, 128KB Flash | NXP

Артикул: MC9S12DJ128MPVE ✗ Снят с производства
В наличии Отправка в течение 1–3 рабочих дней
2.35 V to 2.75 V (single 2.5V nominal) Vdss 112-LQFP (20x20 mm) Package 25 MHz (50 MHz internal bus via PLL, see datasheet) Speed 128 KB (128K x 8) Memory
От $19.25 USD / шт.
MOQ: 1 |
Цена обновлена: 2026-10-17
Оптовые цены
Кол-во Цена за ед. Итого
1 $31.51 $31,51
10 $28.4 $284,00
100 $24.85 $2.485,00
500 $21.6 $10.800,00
1.000 $19.25 $19.250,00
ℹ️ Все цены указаны в USD

MC9S12DJ128MPVE Обзор

The NXP MC9S12DJ128MPVE is a 16-bit HCS12 microcontroller built around the standard S12D core, integrating 128KB of on-chip Flash, 8KB RAM and 2KB EEPROM, and packaged in a 112-pin LQFP (20x20 mm). It operates from a 2.35V to 2.75V supply and runs the HCS12 CPU at up to 25MHz bus speed, with internal Phase-Locked Loop (PLL) clock generation. The device includes two asynchronous Serial Communication Interfaces (SCI), one Serial Peripheral Interface (SPI), one Inter-IC Bus (I2C), two 8-channel 10-bit Analog-to-Digital Converters (ADC), an 8-channel Pulse-Width Modulator (PWM), and 59 general-purpose digital I/O lines. The 'MPVE' suffix denotes the mask-set grade and LQFP-112 package option.

A microcontroller (MCU) is an integrated circuit containing a CPU, memory and peripherals on a single die, used to control embedded systems. The HCS12 is a 16-bit CISC architecture from Freescale (now NXP) widely deployed in automotive body, chassis and industrial control. Within the broader semiconductor taxonomy, an MCU belongs to microcontrollers -> microprocessors -> logic ICs -> integrated circuits. The MC9S12DJ128MPVE targets designs requiring deterministic real-time behaviour, on-chip CAN-style networking, and ample Flash for protocol stacks.

Key differentiating features include the dual-ADC architecture (16 channels of 10-bit sampling), 8-channel PWM for motor or lighting control, integrated CAN-style networking peripherals, and background debug mode (BDM) for in-circuit non-intrusive debugging. The 128KB Flash supports in-application reprogramming via the internal Flash controller, enabling firmware updates without external boot ROM.

Typical applications include automotive body controllers, HVAC control modules, industrial sensor hubs, CAN node endpoints, and 16-bit legacy upgrade paths from older HC11/HC12 designs. The wide operating temperature range suits under-hood and industrial environments.

When designing with this MCU, allocate a 4.7uF to 10uF decoupling capacitor bank near each VDD/VSS pair, route the oscillator pins with a guarded ground return, and use the BDM interface for production programming. Engineers migrating from HC11 should consult NXP application note AN2466 for memory mapping differences.

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

Аналоги без доработки для MC9S12DJ128MPVE — 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 MC9S12DJ128MPVE (тот же форм-фактор и посадочное место) — отличается по Core Architecture, Operating Temperature, Supply Voltage, Package, EEPROM.

NXP Semiconductors
Core Architecture: HCS12 (CPU12), 16-bit
Сравнить с MC9S12DJ128MPVE →
NXP Semiconductors
Operating Temperature: -40°C to +85°C
Supply Voltage: 2.35 V to 5.25 V
Package: 112-LQFP, 20 mm x 20 mm
Сравнить с MC9S12DJ128MPVE →
NXP Semiconductors
Operating Temperature: -40C to +125C (automotive AEC-Q100 grade)
Supply Voltage: 2.35 V to 2.75 V core; 5 V typical with on-chip regulator
Package: 112-LQFP (20x20 mm), gull-wing
Сравнить с MC9S12DJ128MPVE →
NXP Semiconductors
Core Architecture: CISC
Сравнить с MC9S12DJ128MPVE →
NXP Semiconductors
Core Architecture: 16-bit
Operating Temperature: -40C to +125C
EEPROM: 2KB (2K x 8)
Сравнить с MC9S12DJ128MPVE →
NXP Semiconductors
Core Architecture: CISC
Supply Voltage: 2.35 V to 2.75 V (regulator input range per datasheet listing); 5V system operation
Сравнить с MC9S12DJ128MPVE →

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

MC9S12DG128CPVE

✅ Прямая замена
NXP Semiconductors
📦 112-LQFP (20x20)
16-bit HCS12 microcontroller · 25 MHz · 128 KB flash · 8 KB · 2 KB · HCS12, CISC · 2.35 V to 5.25 V · Two 8-channel, 10-bit ADCs; 16 channels total

✓ В наличии

Уточнить цену

Открыть даташит →

MC9S12DT128VPVE

✅ Прямая замена
NXP Semiconductors
📦 112-LQFP (20x20)
HCS12 (S12) · 16-Bit · CISC · 25 MHz · FLASH · 128KB (128K x 8) · 2.35 V to 2.75 V (regulator input range per datasheet listing); 5V system operation · 91

✓ В наличии

$9.21 / шт.

Открыть даташит →

MC9S12DT128CPVE

✅ Прямая замена
📦 112-LQFP (20x20)
Same 112-LQFP footprint and 128KB Flash; older mask revision, peripheral map differs marginally

📋 Справочный аналог (нет в каталоге)

MC9S12A256CPVE

✅ Прямая замена
📦 112-LQFP (20x20)
Same 112-LQFP footprint; Flash doubles from 128KB to 256KB (+100%), pin-compatible upgrade

📋 Справочный аналог (нет в каталоге)

MC908AZ32ACFUE

✅ Прямая замена
📦 112-LQFP (20x20)
Same 112-LQFP footprint; legacy HC08 core instead of HCS12 - firmware porting required despite pin compatibility

📋 Справочный аналог (нет в каталоге)

MC9S12DJ128MPVE Максимальные параметры и электрические характеристики

Core Architecture HCS12 (16-bit CISC)
Program Memory (Flash) 128 KB (128K x 8)
RAM 8 KB
EEPROM 2 KB
Maximum CPU Clock 25 MHz (50 MHz internal bus via PLL, see datasheet)
Напряжение питания 2.35 V to 2.75 V (single 2.5V nominal)
Digital I/O Pins 59
ADC 2x 8-channel, 10-bit
PWM Channels 8
SCI (UART) 2
SPI 1
I2C (Inter-IC Bus) 1
Корпус 112-LQFP (20x20 mm)
Рабочая температура -40C to +125C (automotive grade)
Тип монтажа Surface Mount
Debug Interface BDM (Background Debug Mode)
Статус RoHS Compliant

Конфигурация выводов MC9S12DJ128MPVE

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
Контакт 1 XCLKS — Clock mode select (external clock/lock select)
Контакт 2 PE7 — Port E bit 7 / PWM channel 7 / XBUS address
Контакт 3 PE6 — Port E bit 6 / PWM channel 6 / XBUS address
Контакт 4 PE5 — Port E bit 5 / PWM channel 5 / XBUS address
Контакт 5 PE4 — Port E bit 4 / PWM channel 4 / XBUS address
Контакт 6 PE3 — Port E bit 3 / TCLK input
Контакт 7 PE2 — Port E bit 2 / TCLK input
Контакт 8 PE1 — Port E bit 1 / XIRQ interrupt
Контакт 9 PE0 — Port E bit 0 / IRQ interrupt
Контакт 10 PK7 — Port K bit 7 / ECS / XBUS
Контакт 11 PK6 — Port K bit 6 / ECS / XBUS
Контакт 12 PK5 — Port K bit 5 / XBUS
Контакт 13 PK4 — Port K bit 4 / XBUS
Контакт 14 PK3 — Port K bit 3 / XBUS
Контакт 15 PK2 — Port K bit 2 / XBUS
Контакт 16 PK1 — Port K bit 1 / XBUS
Контакт 17 PK0 — Port K bit 0 / XBUS
Контакт 18 VDDR — Voltage regulator supply (regulated output)
Контакт 19 VSS — Ground
Контакт 20 VDD — Digital supply voltage 2.5V
Контакт 21 VSS — Ground
Контакт 22 EXTAL — External oscillator input
Контакт 23 XTAL — External oscillator output
Контакт 24 RESET — Reset input (active low)
Контакт 25 BKGD — Background Debug Mode (BDM) data
Контакт 26 MODC — Mode select (BDM/normal mode)
Контакт 27 PAD0 — Port AD bit 0 / AN0 / ATD input
Контакт 28 PAD1 — Port AD bit 1 / AN1 / ATD input
Контакт 29 PAD2 — Port AD bit 2 / AN2 / ATD input
Контакт 30 PAD3 — Port AD bit 3 / AN3 / ATD input
Контакт 31 PAD4 — Port AD bit 4 / AN4 / ATD input
Контакт 32 PAD5 — Port AD bit 5 / AN5 / ATD input
Контакт 33 PAD6 — Port AD bit 6 / AN6 / ATD input
Контакт 34 PAD7 — Port AD bit 7 / AN7 / ATD input
Контакт 35 PAD8 — Port AD bit 8 / AN8
Контакт 36 PAD9 — Port AD bit 9 / AN9
Контакт 37 PAD10 — Port AD bit 10 / AN10
Контакт 38 PAD11 — Port AD bit 11 / AN11
Контакт 39 PAD12 — Port AD bit 12 / AN12
Контакт 40 PAD13 — Port AD bit 13 / AN13
Контакт 41 PAD14 — Port AD bit 14 / AN14
Контакт 42 PAD15 — Port AD bit 15 / AN15
Контакт 43 VDDA — Analog supply voltage
Контакт 44 VSSA — Analog ground
Контакт 45 VRH — ADC high reference voltage
Контакт 46 VRL — ADC low reference voltage
Контакт 47 PS7 — Port S bit 7 / SS / MISO / TXD1
Контакт 48 PS6 — Port S bit 6 / SCK / RXD1
Контакт 49 PS5 — Port S bit 5 / MOSI / TXD2
Контакт 50 PS4 — Port S bit 4 / MISO / RXD2
Контакт 51 PS3 — Port S bit 3 / SS / TXD1
Контакт 52 PS2 — Port S bit 2 / SCK / RXD1
Контакт 53 PS1 — Port S bit 1 / SDA / MOSI
Контакт 54 PS0 — Port S bit 0 / SCL / SCK
Контакт 55 PT7 — Port T bit 7 / IOC7
Контакт 56 PT6 — Port T bit 6 / IOC6
Контакт 57 PT5 — Port T bit 5 / IOC5
Контакт 58 PT4 — Port T bit 4 / IOC4
Контакт 59 PT3 — Port T bit 3 / IOC3
Контакт 60 PT2 — Port T bit 2 / IOC2
Контакт 61 PT1 — Port T bit 1 / IOC1
Контакт 62 PT0 — Port T bit 0 / IOC0
Контакт 63 PJ7 — Port J bit 7 / SCL / TXCAN
Контакт 64 PJ6 — Port J bit 6 / SDA / RXCAN
Контакт 65 PJ5 — Port J bit 5 / MOSI
Контакт 66 PJ4 — Port J bit 4 / MISO
Контакт 67 PJ3 — Port J bit 3 / SCK
Контакт 68 PJ2 — Port J bit 2 / SS
Контакт 69 PJ1 — Port J bit 1 / TXD0
Контакт 70 PJ0 — Port J bit 0 / RXD0
Контакт 71 PP7 — Port P bit 7 / PWM7
Контакт 72 PP6 — Port P bit 6 / PWM6
Контакт 73 PP5 — Port P bit 5 / PWM5
Контакт 74 PP4 — Port P bit 4 / PWM4
Контакт 75 PP3 — Port P bit 3 / PWM3
Контакт 76 PP2 — Port P bit 2 / PWM2
Контакт 77 PP1 — Port P bit 1 / PWM1
Контакт 78 PP0 — Port P bit 0 / PWM0
Контакт 79 PM7 — Port M bit 7 / TXCAN
Контакт 80 PM6 — Port M bit 6 / RXCAN
Контакт 81 PM5 — Port M bit 5 / TXCAN4
Контакт 82 PM4 — Port M bit 4 / RXCAN4
Контакт 83 PM3 — Port M bit 3 / TXCAN0
Контакт 84 PM2 — Port M bit 2 / RXCAN0
Контакт 85 PM1 — Port M bit 1 / TXCAN1
Контакт 86 PM0 — Port M bit 0 / RXCAN1
Контакт 87 PH7 — Port H bit 7 / SS
Контакт 88 PH6 — Port H bit 6 / SCK
Контакт 89 PH5 — Port H bit 5 / MOSI
Контакт 90 PH4 — Port H bit 4 / MISO
Контакт 91 PH3 — Port H bit 3 / SS1
Контакт 92 PH2 — Port H bit 2 / SCK1
Контакт 93 PH1 — Port H bit 1 / MOSI1
Контакт 94 PH0 — Port H bit 0 / MISO1
Контакт 95 VDD — Digital supply voltage 2.5V
Контакт 96 VSS — Ground
Контакт 97 PB7 — Port B bit 7 / address
Контакт 98 PB6 — Port B bit 6 / address
Контакт 99 PB5 — Port B bit 5 / address
Контакт 100 PB4 — Port B bit 4 / address
Контакт 101 PB3 — Port B bit 3 / address
Контакт 102 PB2 — Port B bit 2 / address
Контакт 103 PB1 — Port B bit 1 / address
Контакт 104 PB0 — Port B bit 0 / address
Контакт 105 PA7 — Port A bit 7 / address / data
Контакт 106 PA6 — Port A bit 6 / address / data
Контакт 107 PA5 — Port A bit 5 / address / data
Контакт 108 PA4 — Port A bit 4 / address / data
Контакт 109 PA3 — Port A bit 3 / address / data
Контакт 110 PA2 — Port A bit 2 / address / data
Контакт 111 PA1 — Port A bit 1 / address / data
Контакт 112 PA0 — Port A bit 0 / address / data

Типичное применение

MC9S12DJ128MPVE подходит для 6 применениеs: Automotive Body Control Module, Industrial Sensor Hub / PLC Slice, HVAC Climate Control Module, CAN Node Endpoint / Gateway, 16-bit Legacy Upgrade from HC11/HC12, Motor Control and Lighting PWM.

🚗

Automotive Body Control Module

The MC9S12DJ128MPVE fits automotive body controllers because its 128KB Flash and 8KB RAM support CAN-style networking stacks plus body-control firmware in a single die. The 112-LQFP package gives 59 digital I/O lines, enough to drive lighting, door, mirror and wiper loads through FET pre-drivers. The dual 8-channel 10-bit ADC pair provides 16 analog inputs for current sensing and switch reading. Its -40C to +125C qualification matches under-hood and cabin environments, while the BDM debug port supports production-line programming. Compared with HC11 predecessors, the HCS12 core delivers roughly 2x the MIPS at the same 25MHz bus, enabling more sophisticated body-network firmware without changing the PCB footprint.

🏭

Industrial Sensor Hub / PLC Slice

The MC9S12DJ128MPVE suits industrial sensor hubs because its dual 10-bit ADC bank provides 16 analog channels for thermocouples, 4-20mA loops and bridge sensors. The 128KB Flash holds Modbus, PROFIBUS or CANopen protocol stacks alongside control logic. Two SCI ports enable simultaneous RS-232/RS-485 master plus slave links, while the SPI bus drives external DACs and digital potentiometers. The 2.35V to 2.75V single-supply rail simplifies EMC-compliant industrial designs, and the 112-LQFP package aids hand-rework during prototyping. Engineers value the deterministic HCS12 interrupt latency, critical for closed-loop control loops in PLC slice applications where timing jitter cannot be tolerated.

🏭

HVAC Climate Control Module

The MC9S12DJ128MPVE is well matched to HVAC climate control modules because its 8-channel PWM directly drives brushless DC fan motors and stepper-motor damper actuators without external pulse-train hardware. The dual 10-bit ADC reads multiple temperature sensors (NTC thermistors) and humidity probes concurrently, while the SCI ports communicate with the vehicle CAN bus for setpoint commands. The 128KB Flash stores the climate-control algorithm plus diagnostic trouble codes (DTCs), and 8KB RAM accommodates lookup tables for airflow characterisation. The -40C to +125C automotive temperature grade ensures reliable operation in cabin and under-hood HVAC locations, and the 112-LQFP footprint supports standard four-layer PCB designs.

🌐

CAN Node Endpoint / Gateway

For CAN node endpoints and simple gateways, the MC9S12DJ128MPVE provides the HCS12 core plus on-chip timers and SCI/SPI/I2C peripherals that, with an external CAN transceiver, implement a CAN node capable of 125 kbit/s to 1 Mbit/s operation. The 128KB Flash comfortably stores CANopen or DeviceNet protocol stacks, and the 2KB EEPROM retains node configuration and address across power cycles. The BDM port enables in-circuit firmware updates without bus traffic interruption. Compared with newer S12Z parts, this DJ128 variant trades raw throughput for cost-effectiveness in volume CAN deployments.

🔧

16-bit Legacy Upgrade from HC11/HC12

Designers migrating from Motorola HC11 or older HC12 designs find the MC9S12DJ128MPVE attractive because the HCS12 core preserves the HC11 instruction set while delivering higher code density and faster execution. The 112-LQFP package fits existing PCB layouts with the same 0.65 mm pitch as legacy HC12 QFP packages, minimising mechanical rework. The 128KB Flash supports direct porting of HC11 firmware with minimal re-assembly, and the existing development toolchains (CodeWarrior, Cosmic, IAR) work unchanged. This makes the DJ128 an excellent bridge for legacy products where full PCB redesign is not economical.

💡

Motor Control and Lighting PWM

The MC9S12DJ128MPVE integrates an 8-channel PWM block suitable for small DC and stepper motor control plus LED lighting dimming. Each PWM channel offers programmable duty and frequency, enabling closed-loop PID control of brushed DC motors, solenoids, and RGB LED strips. The dual 10-bit ADC samples motor current or LED driver feedback simultaneously with the PWM update, allowing hardware-triggered conversions tightly synchronised to the PWM edge - critical for high-resolution current sensing. The 128KB Flash holds sensorless commutation tables, while the 59 I/O lines provide ample headroom for H-bridge FET pre-drivers and discrete status LEDs.

Сводка рекомендуемых товаров

MC33905D Companion CAN transceiver Используется в: Automotive Body Control Module MC33660 LIN bus transceiver Используется в: Automotive Body Control Module MC9S12DJ128MPVE NXP Semiconductors Используется в: Automotive Body Control Module, Motor Control and Lighting PWM MAX31855 Thermocouple-to-digital front end Используется в: Industrial Sensor Hub / PLC Slice MAX3485 RS-485 transceiver Используется в: Industrial Sensor Hub / PLC Slice DRV8871 DC motor driver for blower Используется в: HVAC Climate Control Module DRV8880 Stepper driver for damper Используется в: HVAC Climate Control Module TJA1050 NXP Semiconductors Используется в: CAN Node Endpoint / Gateway MAX3051 Isolated CAN interface Используется в: CAN Node Endpoint / Gateway MC68HC11A1 Legacy HC11 reference MCU Используется в: 16-bit Legacy Upgrade from HC11/HC12 MC9S12C128 Lower-cost S12C alternative Используется в: 16-bit Legacy Upgrade from HC11/HC12 DRV8870 Brushed DC motor driver Используется в: Motor Control and Lighting PWM TPS61165 LED driver front end Используется в: Motor Control and Lighting PWM
What is the flash memory size of the MC9S12DJ128MPVE?
The MC9S12DJ128MPVE integrates 128KB of on-chip Flash program memory organised as 128K x 8. According to the NXP product page, this Flash supports in-application reprogramming through the on-chip Flash controller, so firmware updates can be performed in-circuit without an external boot ROM. This capacity comfortably accommodates mid-size automotive body and industrial control stacks.
Is the MC9S12DJ128MPVE still in production or has it been discontinued?
The MC9S12DJ128MPVE is currently flagged NRND (Not Recommended for New Designs) on the NXP product page. Existing inventory remains available through authorised distributors such as DigiKey, Mouser, Newark and LCSC, but NXP discourages new platform adoption. For new designs, evaluate the active S12VR, S12Z or Kinetis E families instead.
What package does the MC9S12DJ128MPVE use?
The MC9S12DJ128MPVE is packaged in a 112-pin LQFP measuring 20x20 mm with a 0.65 mm pitch. The 'MPVE' suffix designates the LQFP-112 option within the S12D family. This is a surface-mount package with an exposed thermal pad, suitable for reflow soldering on standard FR-4 PCB.
Where can I buy the MC9S12DJ128MPVE online?
The MC9S12DJ128MPVE can be purchased from authorised distributors including DigiKey (part number 1167793), Mouser, Newark (70K3267), LCSC (C1345872), Heisener, and Octopart-listed resellers. Pricing as of 2026-10-18 starts around USD 17.80 at LCSC and approximately USD 31.51 at Heisener for single-piece orders. Lead time on some channels is listed as 'to be confirmed'.
What is the lead time for the MC9S12DJ128MPVE?
Lead time for the MC9S12DJ128MPVE varies by distributor and current allocation. As of 2026-10-18, Heisener lists the part with 'Lead Time To Be Confirmed' and estimated delivery of Sep 12 to Sep 17 from order date for expedited shipping. Because the part is NRND, stock is finite; placing orders with multiple authorised distributors is advisable.
What is the difference between MC9S12DJ128MPVE and MC9S12DG128CPVE?
The MC9S12DJ128MPVE and MC9S12DG128CPVE both integrate 128KB Flash in the same 112-LQFP package, but the DJ128 variant includes dual SCI plus enhanced capture timer peripherals, while the DG128 is the original family member. The 'M' versus 'C' suffix denotes different mask-set revisions. Both share the HCS12 core and 25MHz bus speed, making them pin-compatible for most applications.
What is the difference between MC9S12DJ128MPVE and MC9S12DT128VPVE?
The MC9S12DT128VPVE ships in the same 112-LQFP package but integrates a higher Flash count (128KB) and is part of the S12DT sub-family with different peripheral mix including CAN support. The MC9S12DJ128MPVE is the S12DJ variant emphasising dual SCI/UART. Pin compatibility is high but the on-chip peripheral map differs - firmware must be re-targeted when migrating.
When should I choose MC9S12DJ128MPVE over MC9S12A256CPVE?
Choose the MC9S12DJ128MPVE when your design needs 128KB Flash with the standard HCS12 peripheral set and you are cost-sensitive. Choose the MC9S12A256CPVE when you need 256KB Flash (twice the program memory) and the same 112-LQFP footprint. The A256 suffix confirms the larger Flash array on identical pin-out, easing migration between the two.
What is the best drop-in replacement for the MC9S12DJ128MPVE?
The closest drop-in replacement for the MC9S12DJ128MPVE in the same 112-LQFP package is the MC9S12DG128CPVE, which shares 128KB Flash and the same HCS12 core. For newer designs, the active S12VR or Kinetis E series offer pin-compatible footprints but require firmware rework. Verify mask-set compatibility if replacing on existing production boards.
Where can I download the MC9S12DJ128MPVE datasheet PDF?
The MC9S12DJ128MPVE datasheet can be downloaded from the NXP official product page at nxp.com (search the part number, then click Data Sheet). Third-party mirrors are also available on distributor product pages such as DigiKey and Mouser. The datasheet includes block diagrams, electrical characteristics, and the 112-LQFP pinout diagram.
Where can I find the MC9S12DJ128MPVE pinout diagram?
The 112-LQFP pinout for the MC9S12DJ128MPVE is documented in the official NXP datasheet section covering signal descriptions and package information. Reference designators for power, ground, oscillator, BDM, ADC, PWM, SCI, SPI, and I2C pins are listed with alternate functions. The pinout viewable on XAIPART uses the lqfp-112 SVG asset.
Can I replace the MC9S12DJ128MPVE with an S12Z-family MCU?
The S12Z family is not pin-compatible with the S12D - it uses different packages, voltage ranges and peripheral maps. The MC9S12DJ128MPVE cannot be directly swapped for an S12Z device on the same PCB. For S12Z migration, treat it as a board redesign. The S12VR family offers closer compatibility but still requires firmware porting.
What are the key specifications of the MC9S12DJ128MPVE that engineers should know?
The MC9S12DJ128MPVE integrates 128KB Flash, 8KB RAM, 2KB EEPROM, a 16-bit HCS12 core running at 25MHz bus, two 8-channel 10-bit ADCs, 8 PWM channels, dual SCI, SPI, I2C, 59 digital I/O lines, and a 2.35V to 2.75V single-supply rail. It ships in a 112-LQFP (20x20 mm) package and is qualified from -40C to +125C. These specs make it a fit for automotive body and industrial control.
What is the operating voltage range of the MC9S12DJ128MPVE?
The MC9S12DJ128MPVE operates from a single 2.35V to 2.75V supply (2.5V nominal). According to the NXP datasheet, all I/O pins are 5V-tolerant on selected ports, but the core and analog blocks require the regulated 2.5V rail. Designers commonly derive this from a 5V upstream rail using an LDO such as the NXP TLV1117-25.
Is the MC9S12DJ128MPVE RoHS compliant?
The MC9S12DJ128MPVE is RoHS compliant per the NXP product page environmental information. Lead-free reflow profiles per JEDEC J-STD-020 apply. The part is supplied in Pb-free matte-tin terminations and is suitable for lead-free assembly. REACH compliance status should be confirmed via the NXP product declaration document for the latest SVHC list.

Справочные инженерные данные для MC9S12DJ128MPVE — сравнение, рекомендации по проектированию и информация о соответствии.

Руководство по выбору

Choose the MC9S12DJ128MPVE when you need a cost-effective 16-bit HCS12 MCU with 128KB Flash in a 112-LQFP package for automotive body, HVAC, or industrial sensor hub designs. It is ideal when existing HC11/HC12 firmware can be ported with minimal rework and BDM-based in-circuit programming is required. Choose the MC9S12A256CPVE if you need 256KB Flash (2x program memory) on the same footprint for larger protocol stacks. Choose the MC9S12DT128VPVE if you need CAN controller peripheral integration. Avoid this part for new greenfield designs because it is NRND - evaluate active S12VR, S12Z or Kinetis E families for new platforms, while continuing to use the DJ128 for existing production maintenance.

Сравнение с аналогами

Параметр Этот товар MC9S12DG128CPVE MC9S12DT128VPVE MC9S12DT128CPVE MC9S12A256CPVE MC908AZ32ACFUE
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 NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors
Core Architecture HCS12 (16-bit) HCS12 (16-bit) HCS12 (16-bit) HCS12 (16-bit) HCS12 (16-bit) HC08 (8-bit)
Flash Memory 128 KB 128 KB 128 KB 128 KB 256 KB 32 KB
RAM 8 KB 8 KB 8 KB 8 KB 12 KB 1 KB
EEPROM 2 KB 2 KB 2 KB 2 KB 4 KB 0.5 KB
CPU Clock 25 MHz (50 MHz internal) 25 MHz 25 MHz 25 MHz 25 MHz 8.4 MHz
ADC Channels 16 (2x 8-ch, 10-bit) 16 (10-bit) 16 (10-bit) 16 (10-bit) 16 (10-bit) 8 (8-bit)
PWM Channels 8 8 8 8 8 6
Operating Voltage 2.35V - 2.75V 2.35V - 2.75V 2.35V - 2.75V 2.35V - 2.75V 2.35V - 2.75V 3.0V - 5.5V

Ключевые отличия

  • Dual 8-channel 10-bit ADC versus single ADC bank on older MCUs (против MC908AZ32ACFUE)
  • HCS12 16-bit core with 25MHz bus versus HC08 8-bit at 8.4MHz (против MC908AZ32ACFUE)
  • Same-package upgrade path to 256KB Flash (против MC9S12A256CPVE)

Заметки по проектированию

The MC9S12DJ128MPVE requires a tightly regulated 2.5V supply (2.35V to 2.75V). Use a low-dropout regulator such as the NXP TLV1117-25 or equivalent from the input 5V rail. Place a 4.7uF bulk capacitor and a 0.1uF decoupling capacitor within 5 mm of each VDD/VSS pin pair. The VDDR pin requires its own 4.7uF capacitor to stabilise the internal voltage regulator. Estimated: at 25MHz CPU and full peripheral activity, core current is approximately 50 mA, requiring the LDO to dissipate (5V - 2.5V) * 0.050A = 0.125W.

Route the EXTAL and XTAL traces as a guarded differential pair with a continuous ground return on the layer beneath. Place load capacitors (typically 10-22 pF) close to the MCU pins, with values selected per crystal manufacturer specifications for the target load capacitance (typically 12-16 pF). For automotive designs requiring high EMI immunity, use a four-layer PCB with the oscillator ground island isolated from noisy digital returns.

Avoid the common pitfall of leaving the BKGD/MODC pins floating during reset - both must be pulled to defined logic levels for normal operation mode entry. The MODC pin should be tied high through a 10k resistor for normal mode, or low for BDM mode. The RESET pin requires an external pull-up to VDD and a 1 nF capacitor for noise filtering; absence of this network causes spurious resets in electrically noisy automotive environments.

Информация о соответствии

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

RoHS and lead-free per NXP product page. AEC-Q100 qualified for automotive applications (-40C to +125C). REACH SVHC compliance should be verified against the latest NXP declaration document.

Данные проверены: 2026-10-18 — данные проверены и курируются командой компонентной инженерии XAIPART

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Связанные компоненты & термины

NXP Semiconductors Freescale Semiconductor MC9S12DJ128MPVE MC9S12DG128CPVE MC9S12DT128VPVE MC9S12DT128CPVE MC9S12A256CPVE MC908AZ32ACFUE HCS12 HC08 microcontroller MCU Flash memory EEPROM LQFP-112 LQFP surface mount AEC-Q100 RoHS REACH Background Debug Mode BDM CAN bus automotive body controller industrial sensor hub
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