MC9S12DG128MPV - 16-bit HCS12 MCU 128KB Flash 112-LQFP | NXP
料号： MC9S12DG128MPV ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
MC9S12DG128MPV 概述
A microcontroller (MCU) is a single-chip computer that integrates a processor core, memory, and peripherals on one die, forming the lowest level of the embedded-systems hierarchy: MCU -> embedded processor -> microprocessor-based system. The HCS12 (also written HC9S12 / S12) family is Motorola's (later Freescale, now NXP) 16-bit evolution of the classic 68HC11 architecture, widely used in automotive multiplexing and industrial control.
Key features of the MC9S12DG128 include 91 general-purpose I/O lines, CANbus, I2C, SCI, and SPI connectivity, an 8-channel enhanced capture timer with input capture/output compare, two 8-channel 10-bit ADCs, an 8-channel pulse-width modulator (PWM), and a watchdog timer (WDT). It operates from a 5V supply (with 2.5V support per listing data), making it well suited to legacy 5V automotive and industrial buses.
Architecturally, the S12 core uses a CISC instruction set with full upward compatibility from the 68HC11, an inter-IC bus for system resource mapping, on-chip clock generation, and background debug mode (BKGD/MODC pin) for unintrusive in-circuit debugging via the standard 6-pin BDM header.
Typical applications include automotive body and multiplex networking nodes (CAN), industrial PLC I/O modules, motor control with PWM outputs, and instrumentation requiring 5V-tolerant analog front ends with the dual 10-bit ADCs.
Design consideration: this part is listed as Obsolete by NXP; for new designs use the S12G or S12P families, and for maintenance of existing designs secure remaining authorized stock (Rochester Electronics continues to supply). Verify EEPROM and Flash endurance limits against the manufacturer datasheet for long-life products.
This page synthesizes distributor availability data, drop-in family alternatives, and obsolescence guidance not consolidated in the manufacturer datasheet.
直接替换替代料： MC9S12DG128MPV ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MC9S12DG128MPV （相同外形与封装尺寸） ——差异在于 Package, Core Architecture, Supply Voltage, RAM Size, Program Memory Size.
快速对比工具——选择替代料号进行并排对比：
MC9S12DG128MPVE
✅ 直接替换✓ 有现货
$11.75 / 个
查看数据手册 →MC9S12DG128BCPVE
✅ 直接替换📋 参考替代料（不在目录中）
MC9S12DG256MPV
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
MC9S12DT128MPV
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$17.5 / 个
查看数据手册 →MC9S12A256CPVE
✅ 直接替换📋 参考替代料（不在目录中）
MC9S12DG128MPV 最大额定值与电气特性
| Core Processor | HCS12 |
| Core Size | 16-Bit |
| Architecture | CISC |
| Speed | 25 MHz |
| Program Memory Size | 128KB (128K x 8) |
| Program Memory Type | FLASH |
| RAM Size | 8K x 8 |
| EEPROM Size | 2K x 8 |
| Number of I/O | 91 |
| Connectivity | CANbus, I2C, SCI, SPI |
| Peripherals | PWM, WDT |
| ADC Resolution | 10-bit |
| 电源电压 | 2.5V / 5V |
| 封装 / 外壳 | 112-LQFP (20 x 20 mm) |
| 安装类型 | Surface Mount |
| Part Status | Obsolete |
| Series | HCS12 (MC9S12D family) |
MC9S12DG128MPV 112-lqfp (20 x 20 mm) 引脚配置指南
MC9S12DG128MPV（112-lqfp (20 x 20 mm) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： MC9S12DG128MPV.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MC9S12DG128MPV 适用于 6 应用s: Automotive Body & Multiplex Networking, Industrial PLC I/O Modules, Motor Control with PWM, Instrumentation & Sensor Data Acquisition, Gateways & Networked Nodes (CAN/SCI Bridges), Legacy Automotive ECU Maintenance & Remanufacturing.
Automotive Body & Multiplex Networking
The MC9S12DG128MPV was explicitly designed by Motorola for automotive multiplexing applications, and its on-chip msCAN controller, 91 I/O lines, and 5V-tolerant ports align directly with body-control module requirements. The 25 MHz HCS12 core comfortably runs CAN scheduling plus lamp/wiper/door control firmware within 128KB Flash, while the 2KB EEPROM stores trim and diagnostic data across power cycles. In this topology the MCU sits on the vehicle CAN bus, driving relays and reading switch arrays via its dual 8-channel 10-bit ADCs. The quantified benefit is single-chip integration: no external CAN controller or ADC is needed, cutting BOM count and PCB area versus a discrete 68HC11-plus-82C250 solution.
推荐
Industrial PLC I/O Modules
In programmable-logic-controller I/O cards, the MC9S12DG128MPV fits because its 91 GPIO lines provide dense discrete input/output capability, the SCI/SPI interfaces link to backplane coprocessors, and the watchdog timer enforces fail-safe behavior demanded in factory automation. The two 8-channel 10-bit ADCs digitize up to 16 analog sensor channels (4-20 mA via external conditioning), and the 8-channel PWM generates actuator drive signals without extra silicon. Running at 25 MHz from a 5V industrial rail simplifies noise immunity design, since 5V CMOS thresholds tolerate plant-floor transients better than 3.3V logic. The 112-LQFP keeps routing practical on two-layer carrier boards, and BDM debugging allows field firmware updates via the standard header.
推荐
Motor Control with PWM
DC and brushless motor drives benefit from the MC9S12DG128MPV's 8-channel PWM block, which generates complementary or independent PWM waveforms with programmable period and duty resolution, while the enhanced capture timer provides input capture for tachometer feedback and output compare for commutation sequencing. The dual 10-bit ADCs, synchronizable to the PWM period, sample current-shunt and back-EMF signals with reduced switching noise when triggered at PWM centers - a quantified benefit of 8 bits-plus effective resolution under typical 5V scaling. The HCS12 core executes PI current loops at kHz rates within the 25 MHz bus budget, and 128KB Flash retains multiple motor-profile tables. CANbus connectivity integrates the drive into higher-level machine networks.
推荐
Instrumentation & Sensor Data Acquisition
Bench and field instrumentation uses the MC9S12DG128MPV's two 8-channel, 10-bit ADCs to digitize up to 16 single-ended inputs at full HCS12 bus speed, with the SCI port streaming results to a host PC and SPI/I2C interfacing external precision references or displays. The 5V analog domain provides a wide 0-5V input span, improving signal-to-noise headroom over 3.3V MCUs - roughly a 1.5x larger LSB span (about 4.9 mV per count at 10 bits) before external amplification is required. The 8KB RAM buffers scan data, and 2KB EEPROM calibrations survive power loss. The 112-LQFP footprint suits compact handheld enclosures, and the 25 MHz core supports on-the-fly linearization and filtering without a companion DSP.
推荐
Gateways & Networked Nodes (CAN/SCI Bridges)
As a protocol gateway, the MC9S12DG128MPV bridges CANbus to SCI (RS-232/RS-485) and SPI/I2C peripherals, using its on-chip msCAN controller for the vehicle or machine bus and the SCI for service-tool access. The 128KB Flash accommodates dual firmware banks for field-updatable gateway images, and 8KB RAM holds message queues sized for typical 500 kbps CAN traffic buffering. Because CAN, SCI, SPI, and I2C are all on-chip, a two-chip gateway (this MCU plus a physical-layer transceiver) is achievable - a BOM reduction versus discrete controller-plus-UART designs. The watchdog enforces autonomous recovery on bus-off conditions, a quantified reliability gain for unattended installations in industrial networking.
推荐
Legacy Automotive ECU Maintenance & Remanufacturing
Independent remanufacturers and repair shops servicing 2000s-era ECUs rely on the MC9S12DG128MPV because it is the exact original silicon in many engine, transmission, and body controllers; sourcing the same die guarantees firmware binary compatibility without recalibration. Rochester Electronics continues life-cycle supply of this obsolete part, and the BDM interface on the BKGD/MODC pin permits in-circuit flash reprogramming of mileage, immobilizer, and calibration data per the Motorola device user guide. The 112-LQFP (20 x 20 mm) footprint matches original PCB land patterns, enabling direct socket-and-replace repair. Lead-free remanufactured variants (MPVE) support RoHS-compliant service builds where regulations require them.
推荐
推荐产品汇总
工程参考数据： MC9S12DG128MPV ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | MC9S12DG128MPVE | MC9S12DG128BCPVE | MC9S12DG256MPV | MC9S12A256CPVE |
|---|---|---|---|---|---|
| Package | 112-LQFP (20 x 20 mm) | 112-LQFP (20 x 20 mm) - same | 112-LQFP (20 x 20 mm) - same | 112-LQFP (20 x 20 mm) - same | 112-LQFP (20 x 20 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors (Freescale) | NXP Semiconductors (Freescale) | NXP Semiconductors (Freescale) |
| Core / 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 Memory | 128KB (128K x 8) | 128KB (128K x 8) | 128KB (128K x 8) | 256KB (256K x 8) | 256KB (256K x 8) |
| Connectivity | CANbus, I2C, SCI, SPI | CANbus, I2C, SCI, SPI | CANbus, I2C, SCI, SPI | CANbus, I2C, SCI, SPI | CANbus, I2C, SCI, SPI |
关键差异点
- Single-chip CAN integration （对比 MC9S12A256CPVE)
- Lead-free drop-in variant available （对比 MC9S12DG128BCPVE)
- Flash headroom within the same footprint （对比 MC9S12DG256MPV)
设计说明
The MC9S12DG128MPV is Obsolete: any new design-in risks immediate redesign. For maintenance designs, secure a last-time-buy covering the product's remaining service life plus attrition, and qualify MC9S12DG128MPVE (lead-free) in parallel since plating differs. Verify the exact masking/ordering suffix (temperature range, speed grade) on received stock against your original BOM - legacy DG128 parts circulated under multiple suffixes with different grade markings.
The device operates from a 5V rail (2.5V support per listing data - confirm the exact VDDx/VDDR configuration in the Motorola device user guide for your masked variant). Decouple all VDD/VDDA/VDDR pin pairs with 0.1 uF ceramics placed within 5 mm of each pin pair, plus one bulk 10 uF per supply domain. The 5V analog domain of the dual 10-bit ADCs is sensitive to CAN transceiver switching; isolate VDDA with an LC filter and route CAN transceiver ground returns away from the ADC analog ground plane.
Use the single-wire BKGD/MODC background debug pin on a standard 6-pin BDM header for production programming and field diagnostics - it is non-intrusive and requires no JTAG port. Keep the BKGD trace short (under 10 cm) with a weak pullup as specified in the device user guide's BKGD/TAGHI/MODC section. During mode selection at reset, ensure MODC level is stable before the internal reset release; floating mode pins cause intermittent boot failures that mimic firmware bugs.
合规信息
The MPV suffix predates lead-free conversion; the RoHS/lead-free equivalent is the MC9S12DG128MPVE suffix per NXP product page. No explicit RoHS/REACH/AEC-Q100 statements for the MPV appear in the provided data; request certificates from the distributor.
