MC9S12DT128MPVE - 16-bit HCS12 MCU, 128KB Flash, LQFP-112 | NXP
MPN： MC9S12DT128MPVE ✗ 停產MC9S12DT128MPVE 概覽
A microcontroller unit (MCU) is a single-chip computer that integrates a processor core, memory, and peripheral functions such as timers, serial interfaces, and analog-to-digital converters. In the system hierarchy, an MCU sits at the embedded control level above discrete logic and below application processors, and the S12D family belongs to the broader 16-bit automotive microcontroller segment originated by Motorola and continued by Freescale Semiconductor, now NXP Semiconductors.
Key features of the MC9S12DT128 include two asynchronous serial communications interfaces (SCI), an 8-channel input capture/output capture enhanced capture timer, two 8-channel 10-bit ADCs, an 8-channel pulse-width modulator, 91 discrete I/O lines, and an Inter-IC (IIC) bus. The 16-bit HCS12 CPU core executes a compact instruction set well suited to automotive multiplexing and body-electronics workloads.
Architecturally, the MC9S12D family members are fully pin compatible, allowing designers to choose different memory and peripheral options for scalable designs on one PCB. The device operates from a 2.35V to 5.25V supply and across an automotive -40C to +125C temperature range, consistent with its intended vehicle-network deployment. Note that NXP lists this part as NRND (Not Recommended for New Designs), so it should be used for maintenance of existing designs rather than new developments.
Typical applications include automotive body control modules, instrument clusters, gateway and multiplexing nodes, and industrial control panels that require robust 16-bit control with CAN-class networking peripherals and generous flash headroom.
When designing with this device, verify long-term supply strategy early because of its NRND status and plan a migration path toward the same pin-compatible S12D family variants with larger flash (for example the DG/DJ/DP variants) if code size grows.
This page synthesizes distributor pricing tiers, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet, with all data verified against NXP, DigiKey, Mouser, and Octopart listings as of 2026-10-18.
直接替換替代品，適用於 MC9S12DT128MPVE — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： MC9S12DT128MPVE （相同外形與佔位） — 差異在於 Package, Core Architecture, Supply Voltage, ADC, Operating Temperature.
MC9S12DG128MPVE
✅ 直接替換聯絡詢價
查看資料表 →MC9S12DJ128MPVE
✅ 直接替換聯絡詢價
查看資料表 →MC9S12DP128MPVE
✅ 直接替換📋 參考替代品（不在目錄中）
MC9S12DT128VPV
✅ 直接替換📋 參考替代品（不在目錄中）
MC9S12DT128MPVE 最大額定值與電氣特性
| Core | HCS12 |
| Core Architecture | 16-bit |
| Maximum Clock Speed | 25 MHz |
| Flash Program Memory | 128KB (128K x 8) |
| RAM | 8KB (8K x 8) |
| EEPROM | 2KB (2K x 8) |
| Supply Voltage Range | 2.35 V to 5.25 V |
| Number of I/O | 91 |
| ADC Resolution | 10-bit |
| ADC Channels | 16 (two 8-channel 10-bit ADCs) |
| PWM Channels | 8-channel |
| Serial Interfaces | 2x SCI, IIC |
| Timers | 8-channel IC/OC enhanced capture timer |
| 工作溫度 | -40C to +125C |
| 封裝 | 112-LQFP (20x20 mm) |
| 安裝類型 | Surface Mount |
| Terminal Form | Gull Wing |
| Temperature Grade | Automotive |
| 生命週期狀態 | NRND (Not Recommended for New Designs) |
| Oscillator Type | Internal |
MC9S12DT128MPVE 112-lqfp (20x20 mm) 腳位配置指南
MC9S12DT128MPVE（112-lqfp (20x20 mm) 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： MC9S12DT128MPVE.
請參閱 資料表 以查看完整腳位配置。
典型應用
MC9S12DT128MPVE 適用於 6 應用s: Automotive Body Control Modules, Instrument Clusters, Automotive Gateway and Multiplexing Nodes, Industrial Motor Control and Actuation, Sensor Signal Acquisition Systems, Legacy ECU Maintenance and Service Electronics.
Automotive Body Control Modules
Body control modules (BCM) consolidate lighting, locking, wiper, and seat functions behind a single networked controller, exactly the automotive multiplexing workload the MC9S12D family was introduced for. The MC9S12DT128MPVE's 91 I/O lines provide dense direct drive and sensing for relays and switches, while two 8-channel 10-bit ADCs digitize analog switch and sensor inputs without external converters. The 8-channel PWM directly controls lamp dimming and motor speed. Its -40C to +125C automotive temperature grade tolerates under-dash thermal environments. Placed on a LIN/CAN-gatewayed BCM board, the 25 MHz HCS12 core runs the multiplexing protocol stack with margin, and the 2KB EEPROM retains calibration data through power cycles.
推薦
Instrument Clusters
Instrument clusters combine stepper-motor gauge drive, telltale lighting, warning tones, and network communication. The MC9S12DT128MPVE fits because its 8-channel PWM output drives gauge pointers and backlight dimming with smooth duty resolution, while the enhanced capture timer with 8 input-capture channels time-stamps wheel-speed and engine pulses without CPU loading. The two 8-channel 10-bit ADCs read fuel level, coolant temperature, and battery voltage, and the SCI ports communicate with the vehicle gateway. With 128KB flash, the full cluster firmware plus diagnostic routines fits without external memory, and the -40C to +125C grade covers windshield-adjacent thermal conditions. Its NRND status means new cluster designs should qualify an active S12 successor while service programs can continue using this part.
推薦
Automotive Gateway and Multiplexing Nodes
The MC9S12D family introduction explicitly names automotive multiplexing applications, and gateway nodes are the canonical example: translating traffic between body, powertrain, and diagnostic buses. The MC9S12DT128MPVE's SCI/IIC serial interfaces, combined with an external CAN transceiver layer, implement gateway translation tasks; the 25 MHz HCS12 core provides deterministic interrupt handling for time-critical frames. The 128KB flash accommodates the routing tables plus flash-resident diagnostic bootloaders, and the 8KB RAM buffers message queues. Because all S12D family members share the same 112-LQFP pin map, a single gateway PCB can be populated with DG/DT/DP variants to scale channel count per vehicle trim level without layout changes.
推薦
Industrial Motor Control and Actuation
Beyond vehicles, the DT128's timer-centric peripheral set suits industrial actuation: the 8-channel enhanced capture timer measures feedback from encoders and Hall sensors while the 8-channel PWM drives motor bridges and solenoids. The dual 10-bit ADCs sample current and position feedback at 8-channel depth, closing the control loop on-chip. The wide 2.35V to 5.25V supply range simplifies integration into 5V industrial logic environments, and the -40C to +125C operating range permits enclosed control cabinets near heat sources. With 91 I/O lines, discrete limit switches and indicator outputs connect without port expanders. Note the HCS12 core is not DSP-class, so high-bandwidth field-oriented control should remain on companion hardware, using the MCU for sequencing and supervision.
推薦
Sensor Signal Acquisition Systems
Data acquisition nodes benefit from the MC9S12DT128MPVE's 16 analog input channels (two 8-channel 10-bit ADCs) that multiplex thermistor, pressure, and potentiometer inputs without external analog multiplexers. The enhanced capture timer's input-capture channels provide precise period and duty measurement for pulse-output flow and speed sensors. Acquired values are time-stamped, filtered in the 8KB RAM, and logged into the 2KB EEPROM for calibration-critical parameters, or streamed out via the SCI ports to a supervisory controller. The 25 MHz core performs oversampling and averaging in real time, improving effective resolution of the 10-bit converters. Its wide industrial temperature coverage and LQFP-112 surface-mount format fit standard industrial PCB assembly processes.
推薦
Legacy ECU Maintenance and Service Electronics
A significant ongoing use of the MC9S12DT128MPVE is sustaining existing electronic control units that already use S12D silicon, where firmware and certification history are locked to this family. Here the part's value is continuity: same die, same flash programming tools, same pin map across DG/DT/DJ/DP variants lets service lines substitute pin-compatible family members when the DT128 allocation tightens under NRND. The 2KB EEPROM preserves per-vehicle calibration records across reprogramming events, and the on-chip flash supports field updates through the SCI-based bootloader. Procurement teams should pair remaining DT128 stock with a qualified DG128/DJ128 cross so PCB assembly can continue uninterrupted as NRND inventory is consumed.
推薦
推薦產品摘要
工程參考資料，適用於 MC9S12DT128MPVE — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | MC9S12DG128MPVE | MC9S12DJ128MPVE | MC9S12DP128MPVE | MC9S12DT128VPV |
|---|---|---|---|---|---|
| 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 family |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors (Freescale legacy) |
| Core / Bus Speed | HCS12 16-bit, 25 MHz | HCS12 16-bit, 25 MHz | HCS12 16-bit, 25 MHz | HCS12 16-bit, 25 MHz | HCS12 16-bit, 25 MHz |
| Flash / RAM / EEPROM | 128KB / 8KB / 2KB | 128KB / 8KB / 2KB | 128KB / 8KB / 2KB | 128KB / 8KB / 2KB | 128KB / 8KB / 2KB |
| ADC | 2x 8-channel 10-bit | 2x 8-channel 10-bit | 2x 8-channel 10-bit | 2x 8-channel 10-bit | 2x 8-channel 10-bit |
| Peripheral Emphasis | Enhanced capture timer (8ch IC/OC) | CAN-capable general-purpose mix | Different timer/CAN split | Maximum CAN channels and I/O | Same DT silicon |
| Lifecycle Status | NRND | Active / NRND per variant - verify | Active / NRND per variant - verify | Active / NRND per variant - verify | NRND |
| Supply Voltage | 2.35 V to 5.25 V | 2.35 V to 5.25 V | 2.35 V to 5.25 V | 2.35 V to 5.25 V | 2.35 V to 5.25 V |
主要差異化特點
- Timer-centric peripheral set for high-channel-count timing tasks (對比MC9S12DG128MPVE)
- Full family pin compatibility enables scalable platforms (對比MC9S12DP128MPVE)
- NRND status is a sourcing trade-off (對比MC9S12DT128VPV)
設計說明
The MC9S12DT128MPVE is NRND per NXP's official product page. Do not start a new design on this part. For existing designs, secure stock now and qualify MC9S12DG128MPVE or MC9S12DJ128MPVE as continuity substitutes - the S12D family is fully pin compatible, so the PCB needs no rework, but the peripheral differences (timer vs CAN emphasis) require a firmware review and re-verification of peripheral initialization code before substitution.
The device operates from 2.35V to 5.25V across the VDD/VDDR pin groups. In automotive 12V systems, provide upstream transient protection (load-dump clamping) before the local regulator feeding the MCU, and decouple each supply pin group with 100 nF ceramics placed within 2-3 mm of the pins plus one bulk capacitor per supply domain. Verify the exact per-pin voltage requirements in the S12D family datasheet electrical characteristics table, as the DT variant groups supply pins by domain.
The 112-LQFP (20x20 mm) gull-wing footprint requires the standard JEDEC-style land pattern with 0.5 mm pitch routing; allow a via-fan-out region under the body for the 91 I/O signals. Keep the oscillator traces short and guarded by ground, route the ADC analog inputs away from PWM and bus switching nets, and use the bottom-layer ground plane continuous beneath the ADC input traces to protect 10-bit conversion accuracy in noisy vehicle environments.
合規資訊
The package code LQFP implies a lead-free capable package family and the part is an automotive-grade device (-40C to +125C), but explicit RoHS/REACH/AEC-Q100 compliance statements were not present in the provided verified web data. Consult the NXP product page environmental section for authoritative compliance data.
