MC9S12A256BCPV - 16-bit HCS12 MCU 256KB Flash 112-LQFP | NXP
MPN: MC9S12A256BCPV ✗ Akhir HidupMC9S12A256BCPV Ringkasan
An HCS12 microcontroller is a 16-bit CISC (Complex Instruction Set Computer) MCU from the Motorola/Freescale lineage now maintained by NXP Semiconductors. It belongs to the broader hierarchy: microcontroller -> embedded microcontroller -> 16-bit MCU -> automotive microcontroller. The HCS12 architecture improves on the earlier HC11/HC12 by adding a 16-bit data path, a richer instruction set, and an enhanced integration module (SIM) for system-level resource mapping.
Key features of the MC9S12A256BCPV include 256 KB Flash, 12 KB RAM, an integrated CAN 2.0 module, multiple SCI/SPI serial interfaces, an 8-channel 10-bit ADC, and PWM outputs suitable for motor and actuator control. The 112-LQFP package exposes a wide external bus that can be configured to 8-bit narrow mode for memory interfacing, allowing designers to attach external peripherals or memory.
The device is built on a mature 0.5 um process and uses the HCS12 CPU with a background debug mode (BDM) for non-intrusive in-circuit debugging. The system integration module (SIM) governs clock generation, interrupt control, and chip-select routing, simplifying the BOM for body controllers. With 25 MHz bus speed, the device delivers up to 25 MIPS, suitable for closed-loop control loops in automotive subsystems.
Typical applications include automotive body controllers, instrument clusters, HVAC control modules, lighting controllers, and CAN node endpoints. The integrated CAN 2.0 controller and large Flash make it a drop-in solution for legacy automotive ECUs and a wide range of industrial control nodes that require CAN connectivity and deterministic 16-bit performance.
When designing with this part, allocate adequate decoupling on each supply pin and respect the 2.35V to 5.25V operating range. For low-power standby, use the STOP and WAIT modes controlled through the SIM. Engineers transitioning from the older HC11/HC12 will find instruction-level compatibility, easing firmware porting.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers evaluate the MC9S12A256BCPV for new designs and legacy drop-in replacement scenarios.
Alternatif penggantian untuk MC9S12A256BCPV — 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 MC9S12A256BCPV (sama faktor bentuk dan footprint) — berbeda di dalam ADC, Supply Voltage, Connectivity, Core Architecture, EEPROM.
MC9S12A256BCPVE
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MC9S12A256CPV
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MC9S12A256CPVE
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MC9S12DG256BCPV
✅ Drop-InKontak untuk harga
Lihat Datasheet →MC9S12XET256MAL
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MC9S12XEQ512MAL
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MC9S12DG128CPVE
✅ Drop-InKontak untuk harga
Lihat Datasheet →HD64F36094GFZWV
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MC9S12A256BCPV Rating Maksimal & Karakteristik Listrik
| Core Architecture | HCS12 (16-bit CISC) |
| Lebar Bus Data | 16-bit |
| Frekuensi Bawah Maximum | 25 MHz |
| Program Memory Size | 256 KB (256K x 8) Flash |
| RAM Size | 12 KB |
| Supply Voltage - Operating | 2.35 V to 5.25 V |
| Operating Supply Voltage (Nominal) | 2.5 V / 5 V |
| Paket / Case | 112-LQFP (20x20 mm) |
| Tipe Mounting | Surface Mount |
| ADC | 8-channel 10-bit |
| Connectivity | CAN, SCI, SPI |
| Peripherals | PWM, Watchdog, BDM |
| Status RoHS | Compliant |
| Bebas Halogen | Not Halogen Free (per cross-reference data) |
| ECC | EAR99 |
| Country of Origin | United States of America |
| Introduction Date | February 26, 2002 |
Konfigurasi Pin MC9S12A256BCPV
| Pin produk 1 | XADDR0 — External address bus bit 0 |
| Pin produk 2 | XADDR1 — External address bus bit 1 |
| Pin produk 3 | XADDR2 — External address bus bit 2 |
| Pin produk 4 | XADDR3 — External address bus bit 3 |
| Pin produk 5 | XADDR4 — External address bus bit 4 |
| Pin produk 6 | VDDR — Voltage regulator supply |
| Pin produk 7 | VSS — Digital ground |
| Pin produk 8 | VDD — Digital supply 2.5V/5V |
| Pin produk 9 | XADDR5 — External address bus bit 5 |
| Pin produk 10 | XADDR6 — External address bus bit 6 |
| Pin produk 11 | XADDR7 — External address bus bit 7 |
| Pin produk 12 | XADDR8 — External address bus bit 8 |
| Pin produk 13 | XADDR9 — External address bus bit 9 |
| Pin produk 14 | XADDR10 — External address bus bit 10 |
| Pin produk 15 | XADDR11 — External address bus bit 11 |
| Pin produk 16 | XADDR12 — External address bus bit 12 |
| Pin produk 17 | XADDR13 — External address bus bit 13 |
| Pin produk 18 | XADDR14 — External address bus bit 14 |
| Pin produk 19 | XADDR15 — External address bus bit 15 |
| Pin produk 20 | VDDX — I/O supply |
| Pin produk 21 | VSSX — I/O ground |
| Pin produk 22 | DATA0 — External data bus bit 0 |
| Pin produk 23 | DATA1 — External data bus bit 1 |
| Pin produk 24 | DATA2 — External data bus bit 2 |
| Pin produk 25 | DATA3 — External data bus bit 3 |
| Pin produk 26 | DATA4 — External data bus bit 4 |
| Pin produk 27 | DATA5 — External data bus bit 5 |
| Pin produk 28 | DATA6 — External data bus bit 6 |
| Pin produk 29 | DATA7 — External data bus bit 7 |
| Pin produk 30 | DATA8 — External data bus bit 8 |
| Pin produk 31 | DATA9 — External data bus bit 9 |
| Pin produk 32 | DATA10 — External data bus bit 10 |
| Pin produk 33 | DATA11 — External data bus bit 11 |
| Pin produk 34 | DATA12 — External data bus bit 12 |
| Pin produk 35 | DATA13 — External data bus bit 13 |
| Pin produk 36 | DATA14 — External data bus bit 14 |
| Pin produk 37 | DATA15 — External data bus bit 15 |
| Pin produk 38 | BKGD — Background Debug Mode |
| Pin produk 39 | RESET — External reset (active low) |
| Pin produk 40 | MODC — Mode control |
| Pin produk 41 | XTAL — Crystal oscillator input |
| Pin produk 42 | EXTAL — External clock input |
| Pin produk 43 | VSSPLL — PLL ground |
| Pin produk 44 | VDDPLL — PLL supply |
| Pin produk 45 | PE0 — Port E bit 0 |
| Pin produk 46 | PE1 — Port E bit 1 |
| Pin produk 47 | PE2 — Port E bit 2 |
| Pin produk 48 | PE3 — Port E bit 3 |
| Pin produk 49 | PE4 — Port E bit 4 |
| Pin produk 50 | PE5 — Port E bit 5 |
| Pin produk 51 | PE6 — Port E bit 6 |
| Pin produk 52 | PE7 — Port E bit 7 |
| Pin produk 53 | PAD00 — ADC channel 0 |
| Pin produk 54 | PAD01 — ADC channel 1 |
| Pin produk 55 | PAD02 — ADC channel 2 |
| Pin produk 56 | PAD03 — ADC channel 3 |
| Pin produk 57 | PAD04 — ADC channel 4 |
| Pin produk 58 | PAD05 — ADC channel 5 |
| Pin produk 59 | PAD06 — ADC channel 6 |
| Pin produk 60 | PAD07 — ADC channel 7 |
| Pin produk 61 | VRH — ADC reference high |
| Pin produk 62 | VRL — ADC reference low |
| Pin produk 63 | VDDA — ADC supply |
| Pin produk 64 | VSSA — ADC ground |
| Pin produk 65 | PA0 — Port A bit 0 |
| Pin produk 66 | PA1 — Port A bit 1 |
| Pin produk 67 | PA2 — Port A bit 2 |
| Pin produk 68 | PA3 — Port A bit 3 |
| Pin produk 69 | PA4 — Port A bit 4 |
| Pin produk 70 | PA5 — Port A bit 5 |
| Pin produk 71 | PA6 — Port A bit 6 |
| Pin produk 72 | PA7 — Port A bit 7 |
| Pin produk 73 | PB0 — Port B bit 0 |
| Pin produk 74 | PB1 — Port B bit 1 |
| Pin produk 75 | PB2 — Port B bit 2 |
| Pin produk 76 | PB3 — Port B bit 3 |
| Pin produk 77 | PB4 — Port B bit 4 |
| Pin produk 78 | PB5 — Port B bit 5 |
| Pin produk 79 | PB6 — Port B bit 6 |
| Pin produk 80 | PB7 — Port B bit 7 |
| Pin produk 81 | PC0 — Port C bit 0 |
| Pin produk 82 | PC1 — Port C bit 1 |
| Pin produk 83 | PC2 — Port C bit 2 |
| Pin produk 84 | PC3 — Port C bit 3 |
| Pin produk 85 | PC4 — Port C bit 4 |
| Pin produk 86 | PC5 — Port C bit 5 |
| Pin produk 87 | PC6 — Port C bit 6 |
| Pin produk 88 | PC7 — Port C bit 7 |
| Pin produk 89 | PD0 — Port D bit 0 |
| Pin produk 90 | PD1 — Port D bit 1 |
| Pin produk 91 | PD2 — Port D bit 2 |
| Pin produk 92 | PD3 — Port D bit 3 |
| Pin produk 93 | PD4 — Port D bit 4 |
| Pin produk 94 | PD5 — Port D bit 5 |
| Pin produk 95 | PD6 — Port D bit 6 |
| Pin produk 96 | PD7 — Port D bit 7 |
| Pin produk 97 | CAN_TX — MSCAN transmit |
| Pin produk 98 | CAN_RX — MSCAN receive |
| Pin produk 99 | TXD0 — SCI0 transmit |
| Pin produk 100 | RXD0 — SCI0 receive |
| Pin produk 101 | MOSI0 — SPI0 master out slave in |
| Pin produk 102 | MISO0 — SPI0 master in slave out |
| Pin produk 103 | SCK0 — SPI0 clock |
| Pin produk 104 | SS0 — SPI0 slave select |
| Pin produk 105 | PWM0 — PWM channel 0 |
| Pin produk 106 | PWM1 — PWM channel 1 |
| Pin produk 107 | PWM2 — PWM channel 2 |
| Pin produk 108 | PWM3 — PWM channel 3 |
| Pin produk 109 | PWM4 — PWM channel 4 |
| Pin produk 110 | PWM5 — PWM channel 5 |
| Pin produk 111 | TCLK — Timer clock input |
| Pin produk 112 | TEST — Factory test pin (tie low) |
Aplikasi Umum
MC9S12A256BCPV cocok untuk 6 aplikasis: Automotive Body Control Module, Instrument Cluster Controller, HVAC Climate Control Module, Industrial CAN Node Endpoint, Automotive Lighting Controller, Motor Control / Pump Driver.
Automotive Body Control Module
The MC9S12A256BCPV fits automotive body controllers because its 256KB Flash supports lighting, wiper, door, and seat control firmware with ample headroom for future features. The 25MHz HCS12 CPU delivers deterministic interrupt response suitable for CAN 2.0 communication with other body ECUs. Placed on the BCM PCB between the 12V battery rail (after regulation to 5V) and the CAN transceiver, it dissipates low power and exposes 91 I/O pins for switch sensing and actuator drive.
Direkomendasikan
Instrument Cluster Controller
The MC9S12A256BCPV's 16-bit HCS12 core and 12KB RAM suit instrument-cluster gauge and telltale driving tasks. The integrated 8-channel 10-bit ADC handles analog fuel, temperature, and battery sense signals while PWM outputs drive stepper or air-core gauges. With 256KB Flash, designers can host multiple gauge layouts and diagnostic routines without external memory, keeping the BOM small.
Direkomendasikan
HVAC Climate Control Module
In HVAC control modules, the MC9S12A256BCPV's PWM channels drive blower motors and blend-door actuators with closed-loop precision. The integrated 10-bit ADC reads cabin temperature, evaporator sensors, and potentiometers, while SCI and SPI interfaces link to the climate control user interface and remote sensors. The 2.35V to 5.25V supply range tolerates cranking transients on the 12V automotive rail.
Direkomendasikan
Industrial CAN Node Endpoint
The MC9S12A256BCPV integrates MSCAN 2.0, making it an effective endpoint for industrial CANopen or DeviceNet nodes. Its 256KB Flash supports custom protocol stacks plus application code, while the BDM interface enables fast field firmware updates. With 91 I/O pins it can replace several discrete controllers, lowering both PCB area and bill-of-materials cost in CAN-attached sensor hubs.
Direkomendasikan
Automotive Lighting Controller
Daytime running light, adaptive headlight, and interior lighting modules benefit from the MC9S12A256BCPV's PWM-rich peripheral set and automotive-grade supply tolerance. The HCS12 CPU generates DRL fade patterns and matrix-beam sequencing without external logic, while the CAN bus links the module to the BCM for diagnostics. A 5V-tolerant I/O bank simplifies connection to LED drivers like the NXP MC33996.
Direkomendasikan
Motor Control / Pump Driver
The MC9S12A256BCPV drives small DC and brushless DC pumps and fans used in automotive water, oil, and fuel systems. Its PWM, timer, and ADC channels implement speed feedback loops, while the CAN interface reports diagnostics to the vehicle network. At 25MHz the CPU sustains the control math without external DSP, and 256KB Flash leaves room for sensorless algorithm libraries.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk MC9S12A256BCPV — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | MC9S12A256BCPVE | MC9S12A256CPV | MC9S12DG256BCPV | MC9S12XET256MAL | HD64F36094GFZWV |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | Renesas Electronics |
| Package | 112-LQFP (20x20) | 112-LQFP (20x20) - same | 112-LQFP (20x20) - same | 112-LQFP (20x20) - same | 112-LQFP (20x20) - same | 112-LQFP (20x20) - same |
| Flash Memory | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | ~32 KB (-87%) |
| Core Architecture | HCS12 (16-bit CISC) | HCS12 (16-bit CISC) | HCS12 (16-bit CISC) | HCS12 (16-bit CISC) | HCS12X + XGATE | H8/300H (16-bit CISC) |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Active (legacy) | Active |
| Operating Voltage Range | 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 | 3.0 V to 5.5 V |
Diferensiator Kunci
- Drop-in extended-temperature grade variant available (vsMC9S12A256BCPVE)
- Dual CAN upgrade path exists in same package (vsMC9S12DG256BCPV)
- XGATE co-processor upgrade option in same footprint (vsMC9S12XET256MAL)
Catatan Desain
Place a 100 nF decoupling capacitor within 5 mm of every VDD/VSS pin pair and a bulk 4.7 uF tantalum on the regulator output. The HCS12A core draws transient currents during flash programming; undersized decoupling can cause EEPROM corruption. According to NXP application note AN2724, a minimum of one bulk cap per four VDD pins is required.
Do not leave the BKGD pin floating during reset; if unused, tie it through a 10 kohm pull-up to VDDX. Floating BKGD can spuriously enter Background Debug Mode and lock out normal execution. Also verify that MODC is tied low for normal single-chip mode operation.
The 112-LQFP (20x20 mm) requires a 4-layer PCB stack-up with a continuous ground plane beneath the package to dissipate the package's thermal load. According to NXP application note AN2689, the LQFP-112 junction-to-ambient theta_JA is approximately 50 C/W on a standard JEDEC test board, so airflow or copper pours are recommended for continuous 25 MHz operation at 5 V.
For external bus operation, the 16-bit data bus and 16-bit address bus must be length-matched within 5 mm to avoid skew on the E-clock rising edge. Place 33 ohm series resistors near the data pins when driving external memory above 50 pF load. Terminate unused XIRQ and IRQ pins with 4.7 kohm pull-ups to prevent spurious interrupts.
Informasi Konformitas
RoHS compliant per NXP product page; not halogen-free per cross-reference data; AEC-Q100 qualified for automotive applications in the A256 family; ECCN: EAR99; Country of Origin: USA; obsolete per third-party cross-reference listings (introduction 2002-02-26).
