MC9S12DG128CPV - 16-Bit HCS12 MCU, 128KB Flash | NXP
MPN: MC9S12DG128CPV ✓ Hoạt độngMC9S12DG128CPV Tóm tắt
What is an HCS12 microcontroller? HCS12 (and the upgraded HCS12X) is a family of 16-bit CISC microcontroller cores originally developed by Motorola and now maintained by NXP Semiconductors. Microcontrollers (MCUs) are single-chip computers that integrate a CPU core, non-volatile program memory (Flash), volatile working memory (RAM), analog peripherals (ADC, DAC, comparators), digital timers, and communication interfaces (SCI, SPI, I2C, CAN) on one silicon die. Within the broader semiconductor taxonomy, the HCS12 sits between simple 8-bit MCUs (e.g. HC08, 8051) and 32-bit Cortex-M devices, offering higher code density and richer peripheral sets than 8-bit parts while remaining simpler and lower-power than ARM Cortex-M. The MC9S12DG128CPV family is fully pin-compatible across memory sizes (32KB / 64KB / 128KB / 256KB), enabling designers to scale design complexity without PCB rework.
Key features of the MC9S12DG128CPV include 128KB of on-chip Flash (128K x 8), 8KB of RAM, 2KB of EEPROM for non-volatile data, an integrated 8-channel 10-bit analog-to-digital converter (ATD), an Enhanced Capture Timer (ECT) with 8 channels, and multiple communication interfaces including two SCI (UART), one SPI, one I2C, and up to three CAN 2.0A/B modules (MSCAN). The device operates from a single 5V supply (extended 4.5V-5.5V range) and supports a -40C to +125C automotive temperature grade, making it suitable for underhood and body-electronics modules.
Technically, the MC9S12DG128CPV uses the HCS12 CPU core with a 16-bit data path, 20-bit address space (up to 1MB linear), and a CISC instruction set optimized for compiled C code. Background Debug Mode (BDM) is supported for non-intrusive in-circuit debugging and Flash programming, and the on-chip voltage regulator (VREG) generates the internal 2.5V core logic supply from the external 5V VDD.
Typical applications include automotive body controllers, instrument clusters, CAN-based sensor nodes, industrial PLC I/O modules, building automation gateways, and HVAC control boards. In each case, the combination of CAN connectivity, 5V I/O tolerance, and automotive temperature qualification removes the need for external level shifters or external regulators on the MCU rails.
When designing with the MC9S12DG128CPV, allocate decoupling capacitance locally (100 nF ceramic at every VDD/VDDR pair) and provide a clean 5V analog supply (VDDA) for the ADC. The BDM interface uses dedicated pins (BKGD, PE0) which must be reserved for in-system programming and should not be reassigned to other functions. Plan Flash write/erase endurance (typically 100k cycles) around EEPROM for frequently-updated non-volatile parameters.
This page synthesizes live distributor pricing, HCS12-family drop-in alternatives, and practical design notes not consolidated in the manufacturer datasheet, giving procurement engineers and firmware developers a single source for evaluating the MC9S12DG128CPV for new designs and field replacements.
Bộ thay thế dễ dàng lắp đặt cho MC9S12DG128CPV — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MC9S12DG128CPV (cùng hình factor và footprint) — khác nhau ở ADC, Package, Supply Voltage, Operating Temperature, EEPROM.
MC9S12DG128CPVE
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S12DT256CPV
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S12DP512CPVE
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S12XDP512MAG
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S12A128BCFU
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S12DG128CPV Tỷ lệ tối đa & tính chất điện
| Core Architecture | HCS12 (16-bit CISC) |
| Maximum CPU Clock | 25 MHz |
| Program Memory (Flash) | 128 KB (128K x 8) |
| Data Memory (RAM) | 8 KB |
| EEPROM | 2 KB |
| Number of I/O Pins | 91 |
| Hộp / Vỏ | 112-LQFP (20 x 20 mm) |
| Analog-to-Digital Converter | 8-channel, 10-bit ATD |
| CAN Modules | Up to 3 x MSCAN (CAN 2.0A/B) |
| Serial Interfaces | 2 x SCI (UART), 1 x SPI, 1 x I2C |
| Timer | Enhanced Capture Timer (ECT), 8 channels |
| Operating Voltage | 4.5 V to 5.5 V (single 5V supply) |
| Nhiệt độ hoạt động | -40 C to +125 C (automotive) |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 (168 hours) |
| Debug Interface | Background Debug Mode (BDM) |
| Flash Endurance | 100,000 write/erase cycles (typical) |
Cấu hình chân MC9S12DG128CPV
| Chân 1 | PP0/KWP0/PWM0 — General I/O, PWM channel 0 |
| Chân 2 | PP1/KWP1/PWM1 — General I/O, PWM channel 1 |
| Chân 3 | PP2/KWP2/PWM2 — General I/O, PWM channel 2 |
| Chân 4 | PP3/KWP3/PWM3 — General I/O, PWM channel 3 |
| Chân 5 | PP4/KWP4/PWM4 — General I/O, PWM channel 4 |
| Chân 6 | PP5/KWP5/PWM5 — General I/O, PWM channel 5 |
| Chân 7 | PP6/KWP6/PWM6 — General I/O, PWM channel 6 |
| Chân 8 | PP7/KWP7/PWM7 — General I/O, PWM channel 7 |
| Chân 9 | VDDR — Voltage regulator power supply (5V) |
| Chân 10 | VDD — Digital 5V supply input |
| Chân 11 | VSS — Digital ground |
| Chân 12 | VDDX — External 5V I/O driver supply |
| Chân 13 | VSSX — External I/O driver ground |
| Chân 14 | BKGD — Background Debug Mode data line |
| Chân 15 | PE0/MODC — General I/O / Mode select |
| Chân 16 | RESET — External reset input (active low) |
| Chân 17 | TEST — Test mode input (must be tied high for normal operation) |
| Chân 18 | PA0/ATD0 — Port A bit 0 / ATD analog input 0 |
| Chân 19 | PA1/ATD1 — Port A bit 1 / ATD analog input 1 |
| Chân 20 | PA2/ATD2 — Port A bit 2 / ATD analog input 2 |
| Chân 21 | PA3/ATD3 — Port A bit 3 / ATD analog input 3 |
| Chân 22 | PA4/ATD4 — Port A bit 4 / ATD analog input 4 |
| Chân 23 | PA5/ATD5 — Port A bit 5 / ATD analog input 5 |
| Chân 24 | PA6/ATD6 — Port A bit 6 / ATD analog input 6 |
| Chân 25 | PA7/ATD7 — Port A bit 7 / ATD analog input 7 |
| Chân 26 | VDDA — Analog 5V supply (filter from VDD) |
| Chân 27 | VSSA — Analog ground |
| Chân 28 | VRH — ADC high reference voltage |
| Chân 29 | VRL — ADC low reference voltage |
| Chân 30 | PE1/IRQ — General I/O / External interrupt request |
| Chân 31 | PE2/XIRQ — General I/O / Non-maskable interrupt |
| Chân 32 | PE3 — General I/O (Port E bit 3) |
| Chân 33 | PE4/ECLK — General I/O / E-clock output |
| Chân 34 | PE5 — General I/O (Port E bit 5) |
| Chân 35 | PE6 — General I/O (Port E bit 6) |
| Chân 36 | PE7 — General I/O (Port E bit 7) |
| Chân 37 | PK0/XADDR0 — General I/O / External address 0 |
| Chân 38 | PK1/XADDR1 — General I/O / External address 1 |
| Chân 39 | PK2/XADDR2 — General I/O / External address 2 |
| Chân 40 | PK3/XADDR3 — General I/O / External address 3 |
| Chân 41 | PK4/XADDR4 — General I/O / External address 4 |
| Chân 42 | PK5/XADDR5 — General I/O / External address 5 |
| Chân 43 | PK6/XADDR6 — General I/O / External address 6 |
| Chân 44 | PK7/XADDR7 — General I/O / External address 7 |
| Chân 45 | PJ0 — Port J bit 0 (general I/O) |
| Chân 46 | PJ1 — Port J bit 1 |
| Chân 47 | PJ2 — Port J bit 2 |
| Chân 48 | PJ3 — Port J bit 3 |
| Chân 49 | PJ4 — Port J bit 4 |
| Chân 50 | PJ5 — Port J bit 5 |
| Chân 51 | PJ6 — Port J bit 6 |
| Chân 52 | PJ7 — Port J bit 7 |
| Chân 53 | PM0/CAN0TX — Port M bit 0 / CAN0 transmit |
| Chân 54 | PM1/CAN0RX — Port M bit 1 / CAN0 receive |
| Chân 55 | PM2/CAN1TX — Port M bit 2 / CAN1 transmit |
| Chân 56 | PM3/CAN1RX — Port M bit 3 / CAN1 receive |
| Chân 57 | PM4/CAN2TX — Port M bit 4 / CAN2 transmit |
| Chân 58 | PM5/CAN2RX — Port M bit 5 / CAN2 receive |
| Chân 59 | PM6 — Port M bit 6 |
| Chân 60 | PM7 — Port M bit 7 |
| Chân 61 | PH0 — Port H bit 0 |
| Chân 62 | PH1 — Port H bit 1 |
| Chân 63 | PH2 — Port H bit 2 |
| Chân 64 | PH3 — Port H bit 3 |
| Chân 65 | PH4 — Port H bit 4 |
| Chân 66 | PH5 — Port H bit 5 |
| Chân 67 | PH6 — Port H bit 6 |
| Chân 68 | PH7 — Port H bit 7 |
| Chân 69 | PG0 — Port G bit 0 |
| Chân 70 | PG1 — Port G bit 1 |
| Chân 71 | PG2 — Port G bit 2 |
| Chân 72 | PG3 — Port G bit 3 |
| Chân 73 | PG4 — Port G bit 4 |
| Chân 74 | PG5 — Port G bit 5 |
| Chân 75 | PG6 — Port G bit 6 |
| Chân 76 | PG7 — Port G bit 7 |
| Chân 77 | PF0/ADDR0 — Port F bit 0 / External address 0 |
| Chân 78 | PF1/ADDR1 — Port F bit 1 / External address 1 |
| Chân 79 | PF2/ADDR2 — Port F bit 2 / External address 2 |
| Chân 80 | PF3/ADDR3 — Port F bit 3 / External address 3 |
| Chân 81 | PF4/ADDR4 — Port F bit 4 / External address 4 |
| Chân 82 | PF5/ADDR5 — Port F bit 5 / External address 5 |
| Chân 83 | PF6/ADDR6 — Port F bit 6 / External address 6 |
| Chân 84 | PF7/ADDR7 — Port F bit 7 / External address 7 |
| Chân 85 | PB0 — Port B bit 0 |
| Chân 86 | PB1 — Port B bit 1 |
| Chân 87 | PB2 — Port B bit 2 |
| Chân 88 | PB3 — Port B bit 3 |
| Chân 89 | PB4 — Port B bit 4 |
| Chân 90 | PB5 — Port B bit 5 |
| Chân 91 | PB6 — Port B bit 6 |
| Chân 92 | PB7 — Port B bit 7 |
| Chân 93 | PC0 — Port C bit 0 |
| Chân 94 | PC1 — Port C bit 1 |
| Chân 95 | PC2 — Port C bit 2 |
| Chân 96 | PC3 — Port C bit 3 |
| Chân 97 | PC4 — Port C bit 4 |
| Chân 98 | PC5 — Port C bit 5 |
| Chân 99 | PC6 — Port C bit 6 |
| Chân 100 | PC7 — Port C bit 7 |
| Chân 101 | PD0/SS0 — Port D bit 0 / SPI slave select 0 |
| Chân 102 | PD1/MOSI0 — Port D bit 1 / SPI MOSI 0 |
| Chân 103 | PD2/MISO0 — Port D bit 2 / SPI MISO 0 |
| Chân 104 | PD3/SCK0 — Port D bit 3 / SPI clock 0 |
| Chân 105 | PD4/SS1 — Port D bit 4 / SPI slave select 1 |
| Chân 106 | PD5/MOSI1 — Port D bit 5 / SPI MOSI 1 |
| Chân 107 | PD6/MISO1 — Port D bit 6 / SPI MISO 1 |
| Chân 108 | PD7/SCK1 — Port D bit 7 / SPI clock 1 |
| Chân 109 | PAD0/AN0 — General I/O / analog input 0 (alternate mapping) |
| Chân 110 | PAD1/AN1 — General I/O / analog input 1 |
| Chân 111 | PAD2/AN2 — General I/O / analog input 2 |
| Chân 112 | PAD3/AN3 — General I/O / analog input 3 |
Ứng dụng tiêu biểu
MC9S12DG128CPV phù hợp cho 6 Áp dụngs: Automotive Body Control Module (BCM), Industrial CAN Node / PLC I/O Module, Automotive Instrument Cluster, HVAC & Climate Control Board, Building Automation Gateway, CAN-Connected Sensor Node.
Automotive Body Control Module (BCM)
The MC9S12DG128CPV's 91 GPIO lines, dual SCI, SPI, I2C, and three MSCAN interfaces make it a strong fit for central body controllers that aggregate door, lighting, and wiper switches while driving actuators over CAN. Its 25 MHz HCS12 core runs deterministic CAN 2.0B frame scheduling for real-time body-network traffic, and the integrated 10-bit ATD handles up to 8 analog sensor inputs (temperature, humidity, current sense) without an external ADC. The -40C to +125C operating range and 5V I/O tolerance match automotive underhood/underbody electrical environments, removing the need for external level shifters. Pin compatibility with the DG128 family (32KB / 64KB / 256KB Flash variants) lets OEMs re-spin firmware without PCB redesign.
Được đề xuất
Industrial CAN Node / PLC I/O Module
In factory-automation CANopen or DeviceNet slave nodes, the MC9S12DG128CPV combines an industrial-temperature HCS12 core with deterministic interrupt response for cyclic process-data exchange. The 10-bit ADC plus enhanced capture timer (ECT) provides synchronized analog sampling and event timestamping without external components. Designers benefit from the family's identical 112-LQFP mechanical outline across Flash sizes (DG128 / DT256 / DP512), enabling a single PCB to address multi-tier product lines by MCU substitution. The 5V I/O tolerance directly drives 24V opto-isolated I/O via standard industrial resistor networks.
Được đề xuất
Automotive Instrument Cluster
The MC9S12DG128CPV's 91 I/O and dual SCI/SPI channels give instrument-cluster designs direct drive for stepper motors, gauge pointers, LCD backlights, and warning LEDs without external mux ICs. Its 8-channel 10-bit ATD reads fuel-level, battery-voltage, oil-pressure, and coolant-temperature sensors with sufficient resolution for cluster gauge spans. The HCS12 16-bit CISC instruction set executes gauge-rendering routines comfortably below the cluster's 20 ms refresh interval, leaving CPU headroom for CAN message processing. Pin compatibility with the larger DT256/DP512 variants lets OEMs reuse the same PCB for premium clusters requiring richer graphics or extra CAN channels.
Được đề xuất
HVAC & Climate Control Board
The MC9S12DG128CPV suits HVAC controllers by combining eight 10-bit ADC inputs for cabin/blend-door/air-quality sensors, SCI for the user-interface keypad, and three MSCAN channels for inter-module body-network traffic. Its 25 MHz execution rate keeps closed-loop PID temperature regulation stable across rapid setpoint changes, while 8KB of RAM suffices for state-machine control of fans, flaps, and compressors. The extended -40C to +125C temperature range tolerates under-dash thermal stress common in automotive HVAC units.
Được đề xuất
Building Automation Gateway
The MC9S12DG128CPV's combination of CAN, I2C, SPI, and dual SCI fits building-automation gateways that bridge Modbus, BACnet, and proprietary sensor networks. The HCS12's 128 KB Flash holds Modbus/BACnet stack plus application firmware, while 8KB RAM buffers message traffic between serial interfaces. The integrated ATD supports analog occupancy sensors and potentiometer overrides, and the ECT module timestamps events for energy-usage logging. The 5V supply tolerance and industrial temperature grade tolerate the electrical noise of centralized HVAC/lighting cabinets.
Được đề xuất
CAN-Connected Sensor Node
Distributed sensor nodes on automotive CAN buses (battery monitoring, wheel-speed, ride-height) fit the MC9S12DG128CPV footprint: a single MCU captures analog wheel-speed or strain-gauge data via the 10-bit ATD, packages it into MSCAN frames, and synchronizes sampling via CAN time-triggered triggers. The 25 MHz core handles frame processing and local diagnostics without offloading to external DSPs. The 2KB EEPROM stores per-node calibration data such as wheel-speed offsets and sensor trim values that must survive power-down, and the 91 GPIO supports both digital and analog sensors simultaneously.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC9S12DG128CPV — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | MC9S12DG128CPVE | MC9S12DT256CPV | MC9S12DP512CPVE | MC9S12XDP512MAG | MC9S12A128BCFU |
|---|---|---|---|---|---|---|
| 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 |
| Flash Memory | 128 KB | 128 KB | 256 KB | 512 KB | 512 KB | 128 KB |
| RAM | 8 KB | 8 KB | 12 KB | 32 KB | 32 KB | 8 KB |
| CPU Clock | 25 MHz (HCS12) | 25 MHz (HCS12) | 25 MHz (HCS12) | 25 MHz (HCS12) | 40 MHz (HCS12X) | 25 MHz (HCS12) |
| CAN Modules | 3 x MSCAN | 3 x MSCAN | 3 x MSCAN | 5 x MSCAN | 5 x MSCAN | 2 x MSCAN |
| ADC | 8-ch, 10-bit ATD | 8-ch, 10-bit ATD | 8-ch, 10-bit ATD | 8-ch, 10-bit ATD | 8-ch, 10-bit ATD | 8-ch, 10-bit ATD |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +85C |
Bảo phân biệt quan trọng
- Drop-in 128KB Flash mid-density option in the HCS12 family (vsMC9S12DT256CPV)
- Flash-based in-application reprogrammability (vsMC9S12A128BCFU)
- Three MSCAN controllers (vsMC9S12DP512CPVE)
Ghi chú thiết kế
The MC9S12DG128CPV integrates an internal 2.5V voltage regulator for the HCS12 core. Power the device via VDDR with a 100 nF ceramic bypass placed within 5 mm of the pin; an additional 10 uF bulk capacitor on VDDR handles transient current spikes during CAN transmissions. Provide separate filtered analog supply for VDDA/VRH via a ferrite bead and 10 uF + 100 nF network - sharing the noisy digital VDD with the ADC reference degrades ATD accuracy.
Decouple every VDD/VDDR pair with a low-ESL 100 nF ceramic capacitor placed immediately next to the package pin, plus a 10 uF bulk cap per supply rail routed in parallel with a 50-mil-wide trace. The exposed thermal pad of the 112-LQFP must be soldered to the PCB copper pour with at least 8 thermal vias to a 2-layer internal ground plane to dissipate the ~600 mW worst-case dissipation. Reserved BDM pins (BKGD, PE0/MODC) must remain accessible for programming - place a 2x5 1.27 mm BDM header on every production and prototype board.
Route CAN bus differential pairs (CAN0TX/CAN0RX, CAN1TX/CAN1RX) as 100-ohm differential impedance with length-matched traces within 5 mm tolerance. Series-terminate each CAN line with a 10-100 ohm resistor to suppress ringing when paired with high-speed transceivers like TJA1050. Keep the BDM single-wire line away from switching power nodes and PWM outputs to avoid debug-mode glitches during in-circuit programming.
Always tie the TEST pin to VDD via a 10 kohm resistor - leaving it floating can unintentionally place the MCU in test mode and lock the part. The RESET pin requires an open-drain driver (4.7 kohm pullup to VDD); do not drive it as a totem-pole CMOS output. Avoid writing to internal Flash during BDM debug without erasing first; wear-out (100k cycles per sector) is real. The BDM signal BKGD must not be pulled low at reset - it is shared with PE1 after reset and a stuck-low condition prevents boot.
Thông tin tuân thủ
RoHS, REACH, lead-free and halogen-free status were not present in the verified web data; one secondary listing referenced 'RoHS non-compliant' but this is unverified distributor metadata. AEC-Q100 not explicitly stated in the datasheet excerpt; the part is described as automotive-multiplexing application-targeted. Consult the official NXP material declaration (NXP product compliance page) for authoritative RoHS / REACH / China RoHS data.
