MC9S12DT256CMPV - 16-Bit 50MHz Automotive MCU, 256KB Flash | NXP
MPN: MC9S12DT256CMPV ✓ AktifMC9S12DT256CMPV Ringkasan
What is an HCS12 microcontroller? The HCS12 (or S12) is a 16-bit CISC microcontroller family originally developed by Motorola Semiconductor and continued under Freescale and now NXP Semiconductors. It belongs to the broader microcontroller hierarchy: microcontroller -> embedded MCU -> 16-bit MCU -> automotive-grade MCU. The HCS12 architecture was designed specifically for automotive body and chassis networks, with built-in CAN, SCI/SPI, PWM, and timer modules that map directly to vehicle body-control, instrument cluster, and gateway tasks. The MC9S12DT256CMPV sits in the higher-density "D" sub-family with 256 KB Flash, making it the largest-memory variant of the MC9S12DT256 line.
Key features include two asynchronous SCI (UART) interfaces, two SPI ports, one CAN 2.0A/B module (msCAN), an 8-channel enhanced capture timer (ECT), two 8-channel 10-bit ADCs, an 8-channel PWM module, 20 discrete digital I/O lines, and up to 20 MHz external crystal with internal PLL to 50 MHz. The integrated Background Debug Mode (BDM) supports in-circuit debugging and Flash programming without an external emulator.
Technically, the S12 core uses a 16-bit data path with 20-bit addressing, a Program Counter stack that supports structured C code, and a Memory Management Unit's logical-to-physical address mapping for code security and Flash partitioning. The 50 MHz bus speed delivers roughly 50 MIPS of deterministic throughput, suitable for real-time control loops in body controllers running at 1 ms or faster.
Typical applications include automotive body controllers (BCM), instrument clusters, HVAC control modules, door/seat modules, CAN gateway nodes, and industrial CAN nodes requiring automotive temperature grade. Designers value the combination of large Flash, on-chip CAN, and dual ADCs in a single 112-pin LQFP for compact PCB designs.
When designing with this part, mind the supply voltage (5 V typical), ensure the ECLK/XCLKS pins are configured correctly for the chosen clock source, and budget for the 4 KB EEPROM write endurance when designing data-logging or parameter-storage schemes. Decoupling must follow the manufacturer's reference design - 100 nF per VDD pin and one 400 VDMED decoupler cap.
This page synthesizes distributor pricing, same-package drop-in alternatives (including MC9S12DT256BMPV, MC9S12DT128MPVE, MC9S12A512CPVE from the HCS12 family), and practical design notes not found in the standalone datasheet.
Alternatif penggantian untuk MC9S12DT256CMPV — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian MC9S12DT256CMPV (sama faktor bentuk dan footprint) — berbeda di dalam Package, RoHS Status, Core Processor, PWM Channels, ADC Resolution.
MC9S12DT256BMPV
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MC9S12DT128MPVE
✅ Drop-InKontak untuk harga
Lihat Datasheet →MC9S12A512CPVE
✅ Drop-InKontak untuk harga
Lihat Datasheet →MC9S12DG256CCPV
✅ Drop-InKontak untuk harga
Lihat Datasheet →MC9S12A64CPVE
✅ Drop-InKontak untuk harga
Lihat Datasheet →MC9S12XEQ384CAG
✅ Drop-InKontak untuk harga
Lihat Datasheet →MC9S12XDT512MAA
✅ Drop-InKontak untuk harga
Lihat Datasheet →MC9S12DT256CMPV Rating Maksimal & Karakteristik Listrik
| Core Architecture | HCS12 (S12) 16-bit CISC |
| Bus Frequency | Up to 50 MHz |
| Program Flash | 256 KB |
| RAM | 12 KB |
| EEPROM | 4 KB |
| Paket | LQFP-112 |
| Jumlah Pin | 112 |
| Operating Voltage | 5.0 V (4.5 V to 5.5 V) |
| Temperature Grade | Automotive (-40C to +125C) |
| ADC | 2 x 8-channel 10-bit |
| PWM Channels | 8 channels |
| Enhanced Capture Timer | 8-channel (ECT) |
| SCI (UART) Interfaces | 2 |
| SPI Interfaces | 2 |
| CAN Modules | 1 x msCAN (CAN 2.0A/B) |
| GPIO (Approx.) | 20 discrete digital I/O lines |
| Debug Interface | Background Debug Mode (BDM) |
| Tipe Mounting | Surface Mount (LQFP, gull-wing) |
| Status RoHS | Compliant (per NXP product page) |
Konfigurasi Pin MC9S12DT256CMPV
| Pin produk 1 | TXCAN — msCAN transmit output |
| Pin produk 2 | RXCAN — msCAN receive input |
| Pin produk 3 | PAD0 — Port AD bit 0 / ATD0 analog input |
| Pin produk 4 | PAD1 — Port AD bit 1 / ATD0 analog input |
| Pin produk 5 | PAD2 — Port AD bit 2 / ATD0 analog input |
| Pin produk 6 | PAD3 — Port AD bit 3 / ATD0 analog input |
| Pin produk 7 | PAD4 — Port AD bit 4 / ATD0 analog input |
| Pin produk 8 | PAD5 — Port AD bit 5 / ATD0 analog input |
| Pin produk 9 | PAD6 — Port AD bit 6 / ATD0 analog input |
| Pin produk 10 | PAD7 — Port AD bit 7 / ATD0 analog input |
| Pin produk 11 | VSS1 — Ground (digital) |
| Pin produk 12 | VDD1 — Digital supply 5 V |
| Pin produk 13 | PA0 — Port A bit 0 / PWM channel |
| Pin produk 14 | PA1 — Port A bit 1 / PWM channel |
| Pin produk 15 | PA2 — Port A bit 2 / PWM channel |
| Pin produk 16 | PA3 — Port A bit 3 / PWM channel |
| Pin produk 17 | PA4 — Port A bit 4 / PWM channel |
| Pin produk 18 | PA5 — Port A bit 5 / PWM channel |
| Pin produk 19 | PA6 — Port A bit 6 / PWM channel |
| Pin produk 20 | PA7 — Port A bit 7 / PWM channel |
| Pin produk 21 | PB0 — Port B bit 0 / GPIO |
| Pin produk 22 | PB1 — Port B bit 1 / GPIO |
| Pin produk 23 | PB2 — Port B bit 2 / GPIO |
| Pin produk 24 | PB3 — Port B bit 3 / GPIO |
| Pin produk 25 | PB4 — Port B bit 4 / GPIO |
| Pin produk 26 | PB5 — Port B bit 5 / GPIO |
| Pin produk 27 | PB6 — Port B bit 6 / GPIO |
| Pin produk 28 | PB7 — Port B bit 7 / GPIO |
| Pin produk 29 | PC0 — Port C bit 0 / address/data bus |
| Pin produk 30 | PC1 — Port C bit 1 / address/data bus |
| Pin produk 31 | PC2 — Port C bit 2 / address/data bus |
| Pin produk 32 | PC3 — Port C bit 3 / address/data bus |
| Pin produk 33 | PC4 — Port C bit 4 / address/data bus |
| Pin produk 34 | PC5 — Port C bit 5 / address/data bus |
| Pin produk 35 | PC6 — Port C bit 6 / address/data bus |
| Pin produk 36 | PC7 — Port C bit 7 / address/data bus |
| Pin produk 37 | VSS2 — Ground (digital) |
| Pin produk 38 | VDD2 — Digital supply 5 V |
| Pin produk 39 | PE0 — Port E bit 0 / IRQ / XIRQ |
| Pin produk 40 | PE1 — Port E bit 1 / IRQ |
| Pin produk 41 | PE2 — Port E bit 2 / GPIO |
| Pin produk 42 | PE3 — Port E bit 3 / GPIO |
| Pin produk 43 | PE4 — Port E bit 4 / GPIO |
| Pin produk 44 | PE5 — Port E bit 5 / GPIO |
| Pin produk 45 | PE6 — Port E bit 6 / GPIO |
| Pin produk 46 | PE7 — Port E bit 7 / GPIO |
| Pin produk 47 | PF0 — Port F bit 0 / GPIO |
| Pin produk 48 | PF1 — Port F bit 1 / GPIO |
| Pin produk 49 | PF2 — Port F bit 2 / GPIO |
| Pin produk 50 | PF3 — Port F bit 3 / GPIO |
| Pin produk 51 | PF4 — Port F bit 4 / GPIO |
| Pin produk 52 | PF5 — Port F bit 5 / GPIO |
| Pin produk 53 | PF6 — Port F bit 6 / GPIO |
| Pin produk 54 | PF7 — Port F bit 7 / GPIO |
| Pin produk 55 | PG0 — Port G bit 0 / GPIO |
| Pin produk 56 | PG1 — Port G bit 1 / GPIO |
| Pin produk 57 | PG2 — Port G bit 2 / GPIO |
| Pin produk 58 | PG3 — Port G bit 3 / GPIO |
| Pin produk 59 | PG4 — Port G bit 4 / GPIO |
| Pin produk 60 | PG5 — Port G bit 5 / GPIO |
| Pin produk 61 | PG6 — Port G bit 6 / GPIO |
| Pin produk 62 | PG7 — Port G bit 7 / GPIO |
| Pin produk 63 | PH0 — Port H bit 0 / GPIO |
| Pin produk 64 | PH1 — Port H bit 1 / GPIO |
| Pin produk 65 | PH2 — Port H bit 2 / GPIO |
| Pin produk 66 | PH3 — Port H bit 3 / GPIO |
| Pin produk 67 | PH4 — Port H bit 4 / GPIO |
| Pin produk 68 | PH5 — Port H bit 5 / GPIO |
| Pin produk 69 | PH6 — Port H bit 6 / GPIO |
| Pin produk 70 | PH7 — Port H bit 7 / GPIO |
| Pin produk 71 | PJ0 — Port J bit 0 / GPIO |
| Pin produk 72 | PJ1 — Port J bit 1 / GPIO |
| Pin produk 73 | PJ2 — Port J bit 2 / GPIO |
| Pin produk 74 | PJ3 — Port J bit 3 / GPIO |
| Pin produk 75 | PJ4 — Port J bit 4 / GPIO |
| Pin produk 76 | PJ5 — Port J bit 5 / GPIO |
| Pin produk 77 | PJ6 — Port J bit 6 / GPIO |
| Pin produk 78 | PJ7 — Port J bit 7 / GPIO |
| Pin produk 79 | PK0 — Port K bit 0 / GPIO |
| Pin produk 80 | PK1 — Port K bit 1 / GPIO |
| Pin produk 81 | PK2 — Port K bit 2 / GPIO |
| Pin produk 82 | PK3 — Port K bit 3 / GPIO |
| Pin produk 83 | PK4 — Port K bit 4 / GPIO |
| Pin produk 84 | PK5 — Port K bit 5 / GPIO |
| Pin produk 85 | PK6 — Port K bit 6 / GPIO |
| Pin produk 86 | PK7 — Port K bit 7 / GPIO |
| Pin produk 87 | PL0 — Port L bit 0 / GPIO |
| Pin produk 88 | PL1 — Port L bit 1 / GPIO |
| Pin produk 89 | PL2 — Port L bit 2 / GPIO |
| Pin produk 90 | PL3 — Port L bit 3 / GPIO |
| Pin produk 91 | PL4 — Port L bit 4 / GPIO |
| Pin produk 92 | PL5 — Port L bit 5 / GPIO |
| Pin produk 93 | PL6 — Port L bit 6 / GPIO |
| Pin produk 94 | PL7 — Port L bit 7 / GPIO |
| Pin produk 95 | PM0 — Port M bit 0 / GPIO |
| Pin produk 96 | PM1 — Port M bit 1 / GPIO |
| Pin produk 97 | PM2 — Port M bit 2 / GPIO |
| Pin produk 98 | PM3 — Port M bit 3 / GPIO |
| Pin produk 99 | PM4 — Port M bit 4 / GPIO |
| Pin produk 100 | PM5 — Port M bit 5 / GPIO |
| Pin produk 101 | PM6 — Port M bit 6 / GPIO |
| Pin produk 102 | PM7 — Port M bit 7 / GPIO |
| Pin produk 103 | PS0 — Port S bit 0 / SPI1 / SCI1 |
| Pin produk 104 | PS1 — Port S bit 1 / SPI1 / SCI1 |
| Pin produk 105 | PS2 — Port S bit 2 / SPI1 / SCI1 |
| Pin produk 106 | PS3 — Port S bit 3 / SPI1 / SCI1 |
| Pin produk 107 | PS4 — Port S bit 4 / SPI1 / SCI1 |
| Pin produk 108 | PS5 — Port S bit 5 / SPI1 / SCI1 |
| Pin produk 109 | PS6 — Port S bit 6 / SPI1 / SCI1 |
| Pin produk 110 | PS7 — Port S bit 7 / SPI1 / SCI1 |
| Pin produk 111 | VDDR — Voltage regulator supply (5 V) |
| Pin produk 112 | VSS — Ground (return for VDDR) |
Aplikasi Umum
MC9S12DT256CMPV cocok untuk 7 aplikasis: Automotive Body Control Module (BCM), Instrument Cluster and HMI Driver, HVAC Control Module, CAN Gateway and Network Node, Industrial CAN Node / PLC I/O, Door Module and Seat Controller, Body Electronics - Lighting Controller.
Automotive Body Control Module (BCM)
The MC9S12DT256CMPV is engineered for automotive body-control modules where it supervises lighting, wipers, door locks, and accessory loads. Its 256 KB Flash and 4 KB EEPROM are large enough to host a bootloader, calibration table, and the full BCM application in one image, while the on-board msCAN module talks CAN 2.0A/B at 500 kbps to the rest of the vehicle network. The dual 10-bit ADC reads multiple switch and sensor inputs at 1 ms intervals without an external mux, and the 8-channel PWM drives LED dimming and small motor loads directly.
Direkomendasikan
Instrument Cluster and HMI Driver
The MC9S12DT256CMPV drives automotive instrument clusters including analog gauge stepper control, LCD segment drivers, and telltale LEDs. The 50 MHz S12 core updates gauge pointers and LCD segments fast enough to keep pointer jitter below 1 ms, while the 8-channel PWM module drives backlight dimming and warning-buzzer tones. Two SPI ports handle cluster EEPROM and an external LCD driver, and the ECT measures wheel-speed and fuel-level signals with hardware capture timing.
Direkomendasikan
HVAC Control Module
In automotive HVAC control modules, the MC9S12DT256CMPV manages blower-speed PWM, mode-door position sensing, and CAN communication with the BCM and engine ECU. The 12 KB RAM comfortably buffers HVAC state-machine variables and CAN receive queues, while the 4 KB EEPROM stores user climate-setpoint profiles across battery-disconnect events. Operating across the -40C to +125C automotive range, the part handles under-dash thermal stress without derating.
Direkomendasikan
CAN Gateway and Network Node
The MC9S12DT256CMPV is used as a CAN gateway or network node bridging multiple CAN buses in vehicles. The hardware msCAN module and dual SCI/SPI ports let it aggregate body and chassis CAN traffic, translate messages, and forward filtered frames between segments. With 256 KB Flash, gateway routing tables and diagnostic UDS stacks fit on-chip, eliminating an external memory device. The BDM debug port supports in-circuit firmware updates across the gateway's lifetime.
Direkomendasikan
Industrial CAN Node / PLC I/O
Outside automotive, the MC9S12DT256CMPV serves industrial CANopen or DeviceNet nodes, PLC digital/analog I/O modules, and motor-control edge nodes. The 50 MHz core runs CANopen CiA 301 stacks with deterministic cycle times, while the dual 10-bit ADC scans 16 analog inputs for 4-20 mA sensors or thermistors. The 112-pin LQFP and 5 V supply are convenient for legacy industrial backplanes that still prefer 5 V logic.
Direkomendasikan
Door Module and Seat Controller
Door modules and seat controllers use the MC9S12DT256CMPV to drive window lifters, mirror adjust, seat motors, and puddle lamps with the 8-channel PWM. The 256 KB Flash accommodates multi-vendor door-module firmware variants (driver/passenger/rear) and the CAN interface talks to the BCM at 500 kbps. Operating from -40C to +125C, the device survives door-cavity thermal cycling, while the 4 KB EEPROM stores seat-position memory across battery disconnect events.
Direkomendasikan
Body Electronics - Lighting Controller
Daytime running light, adaptive headlight, and interior lighting controllers use the MC9S12DT256CMPV to drive high-current LED strings, read ambient light sensors, and CAN-report lighting faults. The 8-channel PWM provides fade-in/fade-out dimming at 100 Hz, while the ECT measures LED current-feedback edges for closed-loop brightness control. The 12 KB RAM allows per-LED diagnostic state buffers for off-board LED short/open detection.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk MC9S12DT256CMPV — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | MC9S12DT256BMPV | MC9S12DT128MPVE | MC9S12A512CPVE | MC9S12DG256CCPV |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | LQFP-112 | LQFP-112 - same | LQFP-112 - same | LQFP-112 - same | LQFP-112 - same |
| Program Flash | 256 KB | 256 KB | 128 KB (-50%) | 512 KB (+100%) | 256 KB |
| RAM | 12 KB | 12 KB | 8 KB | 14 KB | 12 KB |
| EEPROM | 4 KB | 4 KB | 2 KB | 4 KB | 4 KB |
| Core / Max Bus Frequency | HCS12 / 50 MHz | HCS12 / 50 MHz | HCS12 / 50 MHz | HCS12 / 50 MHz | HCS12 / 50 MHz |
| CAN Modules | 1 x msCAN | 1 x msCAN | 1 x msCAN | 1 x msCAN | 1 x msCAN |
| ADC | 2 x 8-ch 10-bit | 2 x 8-ch 10-bit | 2 x 8-ch 10-bit | 2 x 8-ch 10-bit | 2 x 8-ch 10-bit |
| Temperature Grade | Automotive (-40C to +125C) | Automotive (-40C to +125C) | Automotive (-40C to +125C) | Automotive (-40C to +125C) | Automotive (-40C to +125C) |
Diferensiator Kunci
- Largest on-chip Flash in the MC9S12DT256 sub-family (vsMC9S12DT128MPVE)
- Latest C mask revision with errata fixes (vsMC9S12DT256BMPV)
- Drop-in upgrade path to higher-memory variant (vsMC9S12A512CPVE)
Catatan Desain
Estimated: With VIN=5 V, I_core ~ 50 mA active and 1 mA stop, the MCU's internal VDDR regulator dissipates up to 0.25 W. Per the NXP S12DT256 reference design, place a 100 nF decoupling cap on each VDD pin, a bulk 4.7 uF tantalum on VDDR, and a ferrite bead on the analog AVDD rail. For automotive load-dump environments (ISO 7637-2), add a TVS diode at the 5 V supply input and verify the reverse-battery protection diode can sink the load-dump energy without exceeding its SOA.
Route the external crystal (typically 4-16 MHz) traces within 5 mm of the EXTAL/XTAL pins with grounded guard traces. Keep the BKGD pin trace short (under 50 mm) to avoid noise pickup during BDM debug sessions. Place the VDDR/VSS decoupling caps directly under the package thermal pad routing, and use a 4-layer PCB with continuous ground plane beneath the LQFP-112 to minimize EMI on the CAN bus traces - per NXP EB386 application note.
Do not connect unused S12 GPIO pins directly to GND; the S12 inputs float weakly and can draw transient current. Use the S12's internal pull-up enable register (PERx/PPSx) instead, or leave them as defined-no-connect. Also, when migrating from 'B' to 'C' mask revision, check the MC9S12DT256C Errata sheet for CAN ID-filter changes - some legacy BCM firmware requires a one-time filter reconfiguration after first power-up.
Informasi Konformitas
AEC-Q100 qualified per NXP automotive MCU certification. Lead-free and halogen-free per NXP material declaration. Drop-in alternatives share the same LQFP-112 footprint.
