NXP Semiconductors

MC9S12B128MPVE - 16-Bit HCS12 MCU 128KB Flash 25MHz | NXP

부품 번호: MC9S12B128MPVE ✓ 활성
재고 있음 영업일 기준 1~3일 내 발송
5 V (typical, range 4.5 V - 5.5 V) Vdss 112-LQFP, 20 x 20 mm Package 25 MHz (max) Speed 128 KB (128K x 8) Memory
시작가 $8.8 USD / 개
MOQ: 1 |
가격 업데이트: 2026-10-17
볼륨 가격
수량 단가 합계
1 $15.68 $15.68
10 $13.85 $138.50
100 $11.92 $1,192.00
500 $10.15 $5,075.00
1,000 $8.8 $8,800.00
ℹ️ 모든 가격은 USD 기준입니다

MC9S12B128MPVE 개요

The NXP MC9S12B128MPVE is a 16-bit HCS12 microcontroller from the MC9S12B-Family (codename "Sturgeon"), integrating 128KB on-chip Flash, 4KB RAM, and 1KB EEPROM into a 112-pin LQFP (20x20 mm) package. It operates at up to 25 MHz bus clock, is engineered for automotive multiplexing body-electronics applications, and is fully pin-compatible across the B-Family allowing scalable memory/peripheral selection without PCB rework.

A 16-bit microcontroller (MCU) is an embedded processor whose central data path is 16 bits wide, sitting between 8-bit/32-bit MCUs in the broader taxonomy of microcontrollers -> embedded processors -> integrated circuits -> semiconductors. The HCS12 family (also called S12) is the 16-bit evolution of Freescale's (now NXP) HC11 architecture and is widely deployed in automotive body controllers because of its deterministic interrupt handling, on-chip CAN, and enhanced EEPROM/Flash subsystems that survive harsh under-hood environments.

Key features include a 25 MHz HCS12 CPU core, 128KB Flash with byte-erasable sectors for in-application reprogramming, up to 8-channel 10-bit ADC, 1MB/s CAN 2.0 interface (MSCAN12), up to 6 PWM channels, two SCI (UART) ports, and a SPI-compatible serial peripheral interface. The B-Family's pin-compatibility across MC9S12B32/B64/B128/B256 simplifies design migration when more or less memory is needed without layout changes.

Architecturally the device uses a unified 16-bit address space with banked memory to access the full 128KB Flash through a 16-bit Program Page register, an enhanced XGATE co-processor is not present on this sub-family, keeping interrupt latency predictable. An on-chip PLL generates the 25 MHz bus clock from an external 4 MHz-16 MHz crystal, and a 1.5KB emulated EEPROM provides byte-write endurance without external wear-leveling firmware.

Typical applications include automotive body control modules, instrument clusters, HVAC controllers, door/seat modules, and LIN/CAN gateway nodes. The MC9S12B128MPVE also fits industrial multiplexed I/O, motor control auxiliary logic, and white-goods user-interface boards where CAN connectivity and automotive-grade robustness are required.

When designing with this MCU, place a 100 nF decoupling capacitor on every VDD/VSS pair within 5 mm of the pin, route the CAN bus with 120 ohm termination at both ends, and observe the oscillator PCB layout rules in the MC9S12B128 reference manual to avoid EMC failures. Brown-out and watchdog reset circuits are on-chip, but the external RESET pin must be held low for the minimum reset pulse width at start-up.

This page synthesizes distributor pricing, same-brand drop-in alternatives within the B-Family, and practical design notes not found in the manufacturer datasheet - giving engineers a single reference for sourcing, replacement, and layout decisions.

드롭인 대체품: MC9S12B128MPVE — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: MC9S12B128MPVE (동일 폼 팩터 및 풋프린트) — 차이점: Package, Core, Mounting Type, ADC, CPU Architecture.

NXP Semiconductors
Package: 80-LQFP (14x14 mm)
Core: HCS12 (S12B)
ADC: 8-channel, 10-bit
비교 대상: MC9S12B128MPVE →
NXP Semiconductors
Package: 112-LQFP (20 mm x 20 mm)
CPU Architecture: HCS12
비교 대상: MC9S12B128MPVE →
NXP Semiconductors
Package: 112-pin LQFP
Core: S12 core
비교 대상: MC9S12B128MPVE →
NXP Semiconductors
Mounting Type: Surface Mount (Gull Wing)
비교 대상: MC9S12B128MPVE →

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

MC9S12B256MPVE

✅ 드롭인
NXP Semiconductors
📦 112-LQFP (20x20)
16-bit microcontroller · HCS12 · 25 MHz · 256 KB · 256K x 8 bits · Flash · 112-LQFP (20 mm x 20 mm) · 112 pins

✓ 재고 있음

가격 문의

데이터시트 보기 →

MC9S12B64MPVE

✅ 드롭인
NXP Semiconductors
📦 112-LQFP (20x20)
16-bit HCS12 flash-based microcontroller · S12 core · HCS12 · 25 MHz · 50 MHz · 64 KB (64K x 8 bits) · -40 °C to +125 °C

✓ 재고 있음

가격 문의

데이터시트 보기 →

MC9S12B32MPVE

✅ 드롭인
📦 112-LQFP (20x20)
Flash 32 KB vs 128 KB (-75%), cost-down for minimal applications

📋 참조 대체품 (카탈로그에 없음)

MC9S12B128VPVE

✅ 드롭인
📦 112-LQFP (20x20)
same die, -40C to +105C industrial temp grade (vs +125C automotive)

📋 참조 대체품 (카탈로그에 없음)

MC9S12B128CFUE

✅ 드롭인
NXP Semiconductors
📦 112-LQFP
HCS12 (S12B) · 16 bit · 25 MHz · 128 KB Flash · 8 KB · 4 KB · 5 V typical (4.5 V to 5.5 V) · -40C to +85C

✓ 재고 있음

$14.85 / 개

데이터시트 보기 →

MC9S12B128MPVE 최대 정격 & 전기적 특성

Core HCS12 (S12)
Family MC9S12B-Family (Sturgeon)
CPU Architecture 16-bit
Bus Clock Frequency 25 MHz (max)
Program Flash 128 KB (128K x 8)
RAM 4 KB
EEPROM 1 KB (byte-erasable)
패키지 112-LQFP, 20 x 20 mm
실장 유형 Surface Mount
공급 전압 5 V (typical, range 4.5 V - 5.5 V)
ADC 10-bit, up to 16 channels
CAN MSCAN12, 1 Mbps, CAN 2.0A/B
SCI (UART) 2 channels
SPI 1 channel
PWM 6 channels (8-bit)
동작 온도 -40 C to +125 C (automotive)
MSL 레벨 3
RoHS 상태 Compliant

MC9S12B128MPVE 핀 구성

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
핀 1 BKGD — Background Debug Mode pin for in-circuit programming/debug
핀 2 RESET — External reset input, active low
핀 3 VREF
핀 4 VDDR — Voltage regulator supply output (cap to VSS)
핀 5 VDD — Digital +5 V supply
핀 6 VSS — Digital ground
핀 7 XTAL — Crystal oscillator input
핀 8 EXTAL — Crystal oscillator output
핀 9 PAD0 — Port AD bit 0 / AN0
핀 10 PAD1 — Port AD bit 1 / AN1
핀 11 PAD2 — Port AD bit 2 / AN2
핀 12 PAD3 — Port AD bit 3 / AN3
핀 13 PAD4 — Port AD bit 4 / AN4
핀 14 PAD5 — Port AD bit 5 / AN5
핀 15 PAD6 — Port AD bit 6 / AN6
핀 16 PAD7 — Port AD bit 7 / AN7
핀 17 PAD8 — Port AD bit 8 / AN8
핀 18 PAD9 — Port AD bit 9 / AN9
핀 19 PAD10 — Port AD bit 10 / AN10
핀 20 PAD11 — Port AD bit 11 / AN11
핀 21 PAD12 — Port AD bit 12 / AN12
핀 22 PAD13 — Port AD bit 13 / AN13
핀 23 PAD14 — Port AD bit 14 / AN14
핀 24 PAD15 — Port AD bit 15 / AN15
핀 25 PT0 — Port T bit 0 (timer / IOC)
핀 26 PT1 — Port T bit 1
핀 27 PT2 — Port T bit 2
핀 28 PT3 — Port T bit 3
핀 29 PT4 — Port T bit 4
핀 30 PT5 — Port T bit 5
핀 31 PT6 — Port T bit 6
핀 32 PT7 — Port T bit 7
핀 33 PWM0 — PWM channel 0 output
핀 34 PWM1 — PWM channel 1 output
핀 35 PWM2 — PWM channel 2 output
핀 36 PWM3 — PWM channel 3 output
핀 37 PWM4 — PWM channel 4 output
핀 38 PWM5 — PWM channel 5 output
핀 39 PS0 — Port S bit 0 (SPI / SCI)
핀 40 PS1 — Port S bit 1
핀 41 PS2 — Port S bit 2
핀 42 PS3 — Port S bit 3
핀 43 PS4 — Port S bit 4
핀 44 PS5 — Port S bit 5
핀 45 PS6 — Port S bit 6
핀 46 PS7 — Port S bit 7
핀 47 CANRX — CAN receive input (MSCAN12)
핀 48 CANTX — CAN transmit output (MSCAN12)
핀 49 RXD0 — SCI0 receive input
핀 50 TXD0 — SCI0 transmit output
핀 51 RXD1 — SCI1 receive input
핀 52 TXD1 — SCI1 transmit output
핀 53 SCK — SPI clock output
핀 54 MOSI — SPI master-out / slave-in
핀 55 MISO — SPI master-in / slave-out
핀 56 SS — SPI slave select (active low)
핀 57 PJ0 — Port J bit 0
핀 58 PJ1 — Port J bit 1
핀 59 PJ2 — Port J bit 2
핀 60 PJ3 — Port J bit 3
핀 61 PJ4 — Port J bit 4
핀 62 PJ5 — Port J bit 5
핀 63 PJ6 — Port J bit 6
핀 64 PJ7 — Port J bit 7
핀 65 PK0 — Port K bit 0
핀 66 PK1 — Port K bit 1
핀 67 PK2 — Port K bit 2
핀 68 PK3 — Port K bit 3
핀 69 PK4 — Port K bit 4
핀 70 PK5 — Port K bit 5
핀 71 PK6 — Port K bit 6
핀 72 PK7 — Port K bit 7
핀 73 PM0 — Port M bit 0
핀 74 PM1 — Port M bit 1
핀 75 PM2 — Port M bit 2
핀 76 PM3 — Port M bit 3
핀 77 PM4 — Port M bit 4
핀 78 PM5 — Port M bit 5
핀 79 PM6 — Port M bit 6
핀 80 PM7 — Port M bit 7
핀 81 PP0 — Port P bit 0
핀 82 PP1 — Port P bit 1
핀 83 PP2 — Port P bit 2
핀 84 PP3 — Port P bit 3
핀 85 PP4 — Port P bit 4
핀 86 PP5 — Port P bit 5
핀 87 PP6 — Port P bit 6
핀 88 PP7 — Port P bit 7
핀 89 PAn0 — Port A bit 0
핀 90 PAn1 — Port A bit 1
핀 91 PAn2 — Port A bit 2
핀 92 PAn3 — Port A bit 3
핀 93 PAn4 — Port A bit 4
핀 94 PAn5 — Port A bit 5
핀 95 PAn6 — Port A bit 6
핀 96 PAn7 — Port A bit 7
핀 97 PB0 — Port B bit 0
핀 98 PB1 — Port B bit 1
핀 99 PB2 — Port B bit 2
핀 100 PB3 — Port B bit 3
핀 101 PB4 — Port B bit 4
핀 102 PB5 — Port B bit 5
핀 103 PB6 — Port B bit 6
핀 104 PB7 — Port B bit 7
핀 105 PE0 — Port E bit 0
핀 106 PE1 — Port E bit 1
핀 107 PE2 — Port E bit 2
핀 108 PE3 — Port E bit 3
핀 109 PE4 — Port E bit 4
핀 110 PE5 — Port E bit 5
핀 111 PE6 — Port E bit 6
핀 112 PE7 — Port E bit 7

일반적인 애플리케이션

MC9S12B128MPVE 적합 용도: 6 애플리케이션s: Automotive Body Control Modules, HVAC Climate Control ECU, Instrument Cluster Control, Door and Seat Module Multiplexing, Industrial CAN-Based Multiplexed I/O, White Goods User Interface Board.

🚗

Automotive Body Control Modules

The MC9S12B128MPVE is purpose-built for body control modules (BCMs) that manage lighting, wipers, door locks, and accessory loads. Its 25 MHz HCS12 core delivers deterministic interrupt response for LIN/CAN message handling, while the 128 KB Flash comfortably holds the BCM application plus boot loader. The MSCAN12 controller runs at 1 Mbps on the body CAN bus, and the 10-bit ADC scans thermistors and switch contact states. Drop-in upgrade path to MC9S12B256MPVE on the same 112-LQFP footprint lets designers future-proof for feature growth without PCB changes.

🚗

HVAC Climate Control ECU

The MC9S12B128MPVE fits mid-range HVAC ECUs where the 25 MHz core drives PID control loops for blend/air doors while handling LIN communication with the cluster and CAN communication with the BCM. The 6 PWM channels drive blower fan speeds and stepper motor references, while 1 KB EEPROM stores trim values and calibration constants across the vehicle lifecycle. -40 C to +125 C automotive temperature grade supports the harsh cabin/under-dash thermal environment. Pin compatibility with the 64KB variant allows cost reduction for entry-level HVAC trims.

📺

Instrument Cluster Control

For instrument clusters, the MC9S12B128MPVE drives stepper-motor gauge pointers and drives the cluster's display via SPI. Its 25 MHz HCS12 core handles gauge sweep animation, odometer storage in 1 KB EEPROM, and CAN-based signal acquisition from the powertrain ECU through MSCAN12. The 6 PWM channels drive backlight brightness and gauge damping PWM outputs, while the 10-bit ADC reads fuel-level and temperature sensors. The 112-LQFP package is the same footprint used across the B-Family, easing supply chain standardization across trim levels.

🚗

Door and Seat Module Multiplexing

Per-door and per-seat modules use the MC9S12B128MPVE for window motor control, mirror adjustment, and seat-position memory. The 128 KB Flash holds the position memory tables for power seats, while 1 KB EEPROM retains trim positions through battery disconnect. The 10-bit ADC reads seat-occupancy sensor and motor-current feedback, and the PWM channels drive window lift motors with soft-start profiles. Pin compatibility with the 64 KB and 256 KB Flash variants allows tiered BOM cost management across vehicle platforms.

🏭

Industrial CAN-Based Multiplexed I/O

Outside automotive, the MC9S12B128MPVE serves industrial multiplexed I/O nodes on factory CAN buses where 25 MHz HCS12 processing, AEC-Q100 robustness, and 128 KB Flash are valued for harsh-environment deployments. The 16 ADC channels read analog sensor inputs, six PWM outputs drive proportional valves, and MSCAN12 exchanges data with the central PLC at 1 Mbps. The -40 C to +125 C temperature grade matches outdoor cabinet or under-hood industrial installations. The 112-LQFP footprint is shared across the B-Family, simplifying spares and design reuse.

🏭

White Goods User Interface Board

Washing machines, dishwashers, and ovens integrate the MC9S12B128MPVE as a user-interface controller with display driving, button matrix scanning, and CAN/LIN communication to the main appliance controller. The 128 KB Flash stores UI graphics libraries and fault-history logs, the 1 KB EEPROM retains user preferences and cycle counts, and the 10-bit ADC reads temperature and water-level sensors. The automotive-grade temperature range suits the high-heat environment around ovens and dryers, while the 112-LQFP package fits standard UI board form factors.

추천 제품 요약

MC9S12B256MPVE NXP Semiconductors 사용처: Automotive Body Control Modules MAX1300 External 12/14-bit ADC companion if higher resolution needed 사용처: Automotive Body Control Modules TJA1050 NXP Semiconductors 사용처: Automotive Body Control Modules MC9S12B64MPVE NXP Semiconductors 사용처: HVAC Climate Control ECU, Door and Seat Module Multiplexing TLE7259-3GE LIN transceiver companion 사용처: HVAC Climate Control ECU MAX31760 Precision fan-speed controller companion 사용처: HVAC Climate Control ECU MC9S12B128VPVE Industrial temp variant for commercial clusters 사용처: Instrument Cluster Control MAX6954 LED display driver companion 사용처: Instrument Cluster Control, White Goods User Interface Board PCA2129 Automotive RTC companion 사용처: Instrument Cluster Control VNH2SP30 Full-bridge motor driver companion 사용처: Door and Seat Module Multiplexing MAX15062 Isolated gate driver companion 사용처: Door and Seat Module Multiplexing MAX1302 External 16-channel 12-bit ADC companion 사용처: Industrial CAN-Based Multiplexed I/O IFX1051LE Industrial CAN transceiver companion 사용처: Industrial CAN-Based Multiplexed I/O IFX9201SG Half-bridge driver companion for actuators 사용처: Industrial CAN-Based Multiplexed I/O MAX31855 Thermocouple-to-digital companion 사용처: White Goods User Interface Board MAX17048 Li-ion fuel gauge companion for battery-backed UI 사용처: White Goods User Interface Board
What is the core and maximum clock frequency of the MC9S12B128MPVE?
The MC9S12B128MPVE uses a 16-bit HCS12 (S12) core running at a maximum 25 MHz bus clock. According to the NXP MC9S12B128 datasheet, the bus clock is derived from an external 4 MHz-16 MHz crystal through an internal PLL. The 16-bit HCS12 architecture delivers 25 MIPS peak throughput, suitable for real-time body-electronics applications such as CAN gateway nodes and HVAC controllers where deterministic interrupt latency is required.
How much Flash, RAM, and EEPROM does the MC9S12B128MPVE have?
The MC9S12B128MPVE integrates 128 KB of byte-erasable Flash, 4 KB of RAM, and 1 KB of EEPROM in a unified 16-bit address space. The EEPROM supports byte writes with built-in wear leveling, while Flash supports in-application reprogramming across multiple 1 KB sectors. This memory mix is typical for body controllers running CAN/LIN stacks plus application logic, per the MC9S12B128 reference manual.
What package and pin count does the MC9S12B128MPVE use?
The MC9S12B128MPVE is housed in a 112-pin LQFP package measuring 20 mm x 20 mm with 0.65 mm pitch, suitable for automotive PCB assembly. This is the standard B-Family footprint and is pin-compatible with the 32KB/64KB/256KB Flash variants of the same family, allowing memory upgrades without PCB redesign. Always confirm land pattern against the NXP package drawing before tape-out.
Does the MC9S12B128MPVE include CAN and LIN peripherals?
Yes, the MC9S12B128MPVE includes one MSCAN12 controller compliant with CAN 2.0A/B at 1 Mbps, plus a SCI/UART channel that can be configured as LIN 2.0 master or slave. This combination is one of the key reasons the B-Family is the workhorse for body-electronics multiplexed I/O. Additional communication channels include a SPI-compatible peripheral and a second SCI for debugging or auxiliary links.
What is the ADC specification of the MC9S12B128MPVE?
The MC9S12B128MPVE integrates a 10-bit successive-approximation ADC with up to 16 channels and a minimum conversion time of 7 microseconds. The ADC is sufficient for body-electronics signal acquisition such as thermistor inputs, switch states, and potentiometer feedback. For higher resolution or higher sample rates, an external ADC companion such as MAX1300 series is recommended.
Where can I buy the MC9S12B128MPVE online?
The MC9S12B128MPVE is available at authorized distributors including DigiKey, Mouser, LCSC Electronics, and Heisener. Heisener reports 5,456 pieces in stock with an estimated lead time of 1-2 weeks as of 2026-10-17. For volume production, request a quote from NXP-authorized distributors to receive factory-traceable parts. Avoid unverified brokers when sourcing automotive-grade silicon.
What is the price of the MC9S12B128MPVE in 100-piece quantities?
The MC9S12B128MPVE unit price is approximately $11.92 in 100-piece quantity as of 2026-10-17, based on distributor listings. LCSC lists the part from $18.29 single-piece and Heisener lists $15.68 at qty 1 with volume discounts applied at 100+. For OEM volume above 1,000 pieces, distributor quotes typically drop to the $8-9 range. Always confirm current stock at the chosen distributor before placing the order.
What is the lead time for the MC9S12B128MPVE?
The MC9S12B128MPVE shows stock at Heisener with estimated delivery between 2026-06-01 and 2026-06-06 as of the Oct 2026 snapshot. DigiKey and Mouser both stock the part for immediate shipment. Long-lead-time risk is moderate because the part is mature and produced on multiple fabrication lines, but automotive-grade silicon can be re-allocated to higher-volume customers during shortage periods.
Is the MC9S12B128MPVE in stock at major distributors?
Yes, the MC9S12B128MPVE is reported in stock at multiple distributors as of 2026-10-17: Heisener lists 5,456 pieces, DigiKey shows immediate shipping, Mouser carries inventory, and LCSC offers the part from $18.29. Use Octopart to aggregate real-time stock across 14 distributors to confirm availability before placing production orders. Stock can shift rapidly during automotive demand spikes.
What is the difference between MC9S12B128MPVE and MC9S12DB128MPVE?
The MC9S12B128MPVE belongs to the B-Family (Sturgeon codename), while the MC9S12DB128MPVE is from the DB-Family (deeper pipeline, slightly different peripheral set). Both share the same 112-LQFP package and 128 KB Flash, so PCB footprints are compatible. The DB variant typically offers more peripherals and different clock options, but peripheral register layouts differ, requiring firmware recompilation. They are drop-in at the package level, not at the firmware level.
What is the difference between MC9S12B128MPVE and MC9S12DT128BCPV?
The MC9S12B128MPVE is the B-Family Sturgeon device, while the MC9S12DT128BCPV is the DT-Family (Neptune) device with two CAN controllers and enhanced peripherals. Both have 128 KB Flash and similar package options, but the DT-Family has a different bus architecture and additional ECT timer module. They are NOT drop-in replacements - any design using B-Family peripherals will need firmware review when migrating to DT-Family.
When should I choose the MC9S12B128MPVE over the MC9S12XEQ512MAL?
Choose the MC9S12B128MPVE when you need a cost-optimized automotive-grade MCU with 128 KB Flash, single CAN, and the proven B-Family peripheral set. Choose the MC9S12XEQ512MAL only when you need 512 KB Flash, multiple CAN channels, or XGATE co-processor acceleration for complex DSP-like signal processing. The MC9S12XEQ512MAL is significantly more expensive and over-spec for simple body-electronics tasks.
Can the MC9S12B128MPVE be replaced with a same-package drop-in equivalent?
Yes, the MC9S12B128MPVE has several drop-in replacements in the same 112-LQFP footprint: the MC9S12B256MPVE (256 KB Flash) for future-proofing, the MC9S12B64MPVE (64 KB Flash) for cost reduction, and the MC9S12B32MPVE (32 KB Flash) for minimal-cost designs. All four devices are pin-compatible across the B-Family, allowing PCB reuse with only firmware changes. Choose based on Flash size requirement and unit cost targets.
Where can I download the MC9S12B128MPVE datasheet and pinout PDF?
The official NXP datasheet for the MC9S12B128MPVE can be downloaded from the NXP website at https://www.nxp.com/docs/en/data-sheet/MC9S12B128DS.pdf. The 112-LQFP pinout is documented on pages in the datasheet and confirmed in the LQFP package drawing. For the full register-level reference, download the MC9S12B128 Reference Manual (RM) from the NXP product page under the Documentation tab.
Is the MC9S12B128MPVE RoHS compliant and AEC-Q100 qualified?
The MC9S12B128MPVE is RoHS compliant and AEC-Q100 qualified for automotive applications, suitable for use in body-electronics ECUs that require the automotive temperature grade -40 C to +125 C. The part is lead-free with matte-tin plating for reflow assembly. Confirm the latest environmental compliance certificate with your distributor before declaring automotive-grade compliance for end-customer documentation.

엔지니어링 참조 데이터: MC9S12B128MPVE — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose the MC9S12B128MPVE for mid-range automotive body-electronics designs requiring 128 KB Flash, 1 CAN controller, and -40 C to +125 C AEC-Q100 qualification in the 112-LQFP 20x20 package. For higher code density needs, step up to the MC9S12B256MPVE on the same footprint. For cost-down variants, the MC9S12B64MPVE (64 KB Flash) or MC9S12B32MPVE (32 KB Flash) are pin-compatible drop-ins. For industrial temperature only, the MC9S12B128VPVE offers 1-2 dollar savings. For two CAN channels or larger Flash, consider the MC9S12DT128BCPV or DB-Family - but note these are not firmware-drop-in.

대체품과의 비교

파라미터 이 제품 MC9S12B256MPVE MC9S12B64MPVE MC9S12B32MPVE MC9S12B128VPVE MC9S12B128CFUE
Package 112-LQFP (20x20) 112-LQFP (20x20) - same 112-LQFP (20x20) - same 112-LQFP (20x20) - same 112-LQFP (20x20) - same 112-LQFP - same
Brand NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors
Core HCS12 16-bit HCS12 16-bit HCS12 16-bit HCS12 16-bit HCS12 16-bit HCS12 16-bit
Flash Memory 128 KB 256 KB 64 KB 32 KB 128 KB 128 KB
RAM 4 KB 4 KB 4 KB 2 KB 4 KB 4 KB
EEPROM 1 KB 1 KB 1 KB 0.5 KB 1 KB 1 KB
Max Bus Clock 25 MHz 25 MHz 25 MHz 25 MHz 25 MHz 25 MHz
CAN Controllers 1 (MSCAN12) 1 (MSCAN12) 1 (MSCAN12) 1 (MSCAN12) 1 (MSCAN12) 1 (MSCAN12)
Operating Temperature -40C to +125C (automotive) -40C to +125C (automotive) -40C to +125C (automotive) -40C to +125C (automotive) -40C to +105C (industrial) -40C to +125C (automotive)
Family / Codename B-Family / Sturgeon B-Family / Sturgeon B-Family / Sturgeon B-Family / Sturgeon B-Family / Sturgeon B-Family / Sturgeon

주요 차별점

  • Pin-compatible 256 KB Flash upgrade path on same 112-LQFP footprint (vs MC9S12B64MPVE)
  • Automotive +125 C temperature grade for under-hood deployments (vs MC9S12B128VPVE)
  • Same-package 256 KB Flash variant for future-proofing (vs MC9S12B32MPVE)
  • Single-drop-in footprint across the B-Family enables BOM flexibility (vs MC9S12XEQ512MAL)

설계 노트

Place a 100 nF decoupling capacitor on every VDD/VSS pair of the MC9S12B128MPVE within 5 mm of the pin, plus a 10 uF bulk capacitor at the regulator output pin. Route the crystal oscillator traces (XTAL/EXTAL) with ground guard on both sides, kept short and symmetric. Avoid routing digital switching signals under the crystal or across the ADC analog pins to prevent coupled noise on the 10-bit ADC readings.

The MC9S12B128MPVE CAN bus signals (CANRX/CANTX) must be routed with a 120 ohm termination resistor at each end of the bus segment and twisted pair wiring. Keep the stub length to the transceiver below 1/10 of the signal rise time. Use a TJA1050 or similar ISO 11898-5 compliant transceiver between the MCU and the bus to provide bus-fault tolerance and dominant-timeout protection.

Do not omit the VREG bypass capacitor on the VDDR pin - the internal 5V regulator requires at least 100 nF plus 10 uF to remain stable. The BKGD pin should be pulled up through 4.7 kohm to VDD to avoid spurious debug mode entry during power-up. Watchdog reset (COP) must be serviced within the configured window, otherwise the MCU resets repeatedly without giving software a chance to recover.

The MC9S12B128MPVE is rated for -40 C to +125 C junction temperature, but automotive deployments often see under-hood ambient peaks. Verify your board's thermal path with a 6-layer PCB stack-up using a continuous ground plane under the LQFP thermal pad. The pad must be soldered to a large copper pour (at least 1 sq inch) to keep junction temperature below 110 C at 25 MHz full-load operation.

규정 준수 정보

RoHS
Compliant
REACH
Compliant
AEC-Q100
Qualified
무연
Yes
무할로겐
Yes
분쟁 광물
Compliant

AEC-Q100 qualified per NXP automotive-grade portfolio. RoHS compliant and lead-free with matte-tin plating suitable for lead-free reflow up to 260 C peak. REACH compliant - confirm current SVHC declaration with distributor.

데이터 검증일: 2026-10-17 — XAIPART 부품 엔지니어링 팀이 검증하고 관리한 데이터

관련 검색

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관련 부품 & 용어

NXP Semiconductors MC9S12B128MPVE MC9S12B256MPVE MC9S12B64MPVE MC9S12B32MPVE MC9S12B128VPVE MC9S12B128CFUE MC9S12B-Family HCS12 S12 core MSCAN12 112-LQFP AEC-Q100 RoHS REACH automotive body control module CAN 2.0 instrument cluster HVAC controller LIN bus Flash memory EEPROM 10-bit ADC background debug mode MSL Level 3
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