MC9S12XDP512VAL - 16-bit 80MHz HCS12X MCU 512KB Flash | NXP
MPN: MC9S12XDP512VAL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $16.2 | $162.00 |
| 100 | $13.95 | $1,395.00 |
| 500 | $12.4 | $6,200.00 |
| 1,000 | $11.1 | $11,100.00 |
MC9S12XDP512VAL Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), working memory (RAM), and a rich set of peripherals such as timers, ADC, communication controllers, and GPIO. The HCS12X architecture extends the HCS12 core with an enhanced indexed addressing mode, a hardware instruction queue, and an extended instruction set while remaining object-code compatible with legacy HCS12 code, easing migration of existing automotive platforms.
Key features of the MC9S12XDP512VAL include 512 KB Flash organised as 512K x 8 with EEPROM emulation capability, an XGATE co-processor for offloading interrupt-driven peripheral servicing, multiple CAN 2.0A/B modules for in-vehicle networking, an 8/10/12-bit ATD (Analog-to-Digital) converter, and an enhanced capture timer. The wide 2.35 V to 2.75 V single-supply range (with 5 V-tolerant I/O on selected pins) simplifies integration with both 3.3 V and 5 V analog signal chains.
The HCS12X core delivers up to 80 MHz bus operation, instruction queueing, and a separate XGATE auxiliary core that handles interrupt-driven peripheral tasks with deterministic latency. The peripheral set includes multiple MSCAN modules, SPI, SCI/UART, IIC, PWM, timers and an 8-channel ATD, allowing designers to consolidate several discrete controllers into a single chip.
Typical applications include automotive body control modules, chassis controllers, gateway ECUs, CAN-based multiplexing networks, and industrial CAN-FD bridge nodes. Designers frequently choose this part for ECU upgrades where 16-bit code compatibility and large Flash headroom are both required.
When designing with this device, ensure the integrated voltage regulator and external decoupling match the 2.5 V core rail requirements and that unused CAN pins are tied to defined logic levels to avoid bus-dominant faults. The 112-pin LQFP also requires careful PCB layout for the exposed thermal pad to dissipate peak current bursts from CAN drivers.
This page synthesises distributor pricing, parametric drop-in alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers rapidly qualify the MC9S12XDP512VAL for both new designs and legacy platform refresh.
Drop-in alternatives for MC9S12XDP512VAL — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MC9S12XDP512VAL (same form factor and footprint) — differing in Package, Core Architecture, Operating Temperature, Supply Voltage, EEPROM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MC9S12XDT512MAL
✅ Drop-In✓ In Stock
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View Datasheet →MC9S12XDT512CAL
✅ Drop-In📋 Reference alternative (not in catalog)
MC9S12XDP512CAL
✅ Drop-In📋 Reference alternative (not in catalog)
MC9S12XDP512MAL
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
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View Datasheet →MC9S12XEQ384CAG
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View Datasheet →S912XET512J2VAGR
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View Datasheet →MC9S12XDP512VAL Maximum Ratings & Electrical Characteristics
| Core Processor | HCS12X |
| Core Architecture | 16-bit CISC |
| Maximum CPU Frequency | 80 MHz |
| Program Memory Size | 512 KB (512K x 8) Flash |
| Supply Voltage | 2.35 V to 2.75 V |
| I/O Pins | 119 |
| Package Type | 112-pin LQFP (20 x 20 mm) |
| Mounting Type | Surface Mount |
| CAN Modules | Multiple MSCAN (CAN 2.0A/B) |
| ADC | 8/10-bit ATD (S12ATD10B8CV3) |
| Co-processor | XGATE |
| Instruction Set Compatibility | Upward-compatible with HCS12 |
| ROM Type | Flash |
| Lifecycle Status | Active |
MC9S12XDP512VAL Pin Configuration
| Pin 1 | BKGD — Background/Mode pin for debug and flash programming |
| Pin 2 | VDDR — Regulator power supply (external pass-device drive) |
| Pin 3 | VDD — 2.5V core supply (output of internal regulator) |
| Pin 4 | VSS — Digital ground |
| Pin 5 | VDDA — Analog supply for ATD module |
| Pin 6 | VSSA — Analog ground |
| Pin 7 | ATD0 — Analog-to-Digital converter channel 0 |
| Pin 8 | ATD1 — Analog-to-Digital converter channel 1 |
| Pin 9 | ATD2 — Analog-to-Digital converter channel 2 |
| Pin 10 | ATD3 — Analog-to-Digital converter channel 3 |
| Pin 11 | ATD4 — Analog-to-Digital converter channel 4 |
| Pin 12 | ATD5 — Analog-to-Digital converter channel 5 |
| Pin 13 | ATD6 — Analog-to-Digital converter channel 6 |
| Pin 14 | ATD7 — Analog-to-Digital converter channel 7 |
| Pin 15 | VRH — ATD high reference voltage |
| Pin 16 | VRL — ATD low reference voltage |
| Pin 17 | XTAL — Crystal oscillator input |
| Pin 18 | EXTAL — Crystal oscillator output / external clock input |
| Pin 19 | RESET — Active-low external reset (bidirectional) |
| Pin 20 | TEST — Test mode pin (tie to VSS in normal operation) |
| Pin 21 | PAD0 — Port AD bit 0 / ETRIG0 / PWM |
| Pin 22 | PAD1 — Port AD bit 1 |
| Pin 23 | PAD2 — Port AD bit 2 |
| Pin 24 | PAD3 — Port AD bit 3 |
| Pin 25 | PAD4 — Port AD bit 4 |
| Pin 26 | PAD5 — Port AD bit 5 |
| Pin 27 | PAD6 — Port AD bit 6 |
| Pin 28 | PAD7 — Port AD bit 7 |
| Pin 29 | PA0 — Port A bit 0 / TIM channel |
| Pin 30 | PA1 — Port A bit 1 / TIM channel |
| Pin 31 | PA2 — Port A bit 2 / TIM channel |
| Pin 32 | PA3 — Port A bit 3 / TIM channel |
| Pin 33 | PA4 — Port A bit 4 / TIM channel |
| Pin 34 | PA5 — Port A bit 5 / TIM channel |
| Pin 35 | PA6 — Port A bit 6 / TIM channel |
| Pin 36 | PA7 — Port A bit 7 / TIM channel |
| Pin 37 | PB0 — Port B bit 0 / PWM |
| Pin 38 | PB1 — Port B bit 1 / PWM |
| Pin 39 | PB2 — Port B bit 2 / PWM |
| Pin 40 | PB3 — Port B bit 3 / PWM |
| Pin 41 | PB4 — Port B bit 4 / PWM |
| Pin 42 | PB5 — Port B bit 5 / PWM |
| Pin 43 | PB6 — Port B bit 6 / PWM |
| Pin 44 | PB7 — Port B bit 7 / PWM |
| Pin 45 | PE0 — Port E bit 0 / XIRQ |
| Pin 46 | PE1 — Port E bit 1 / IRQ |
| Pin 47 | PE2 — Port E bit 2 |
| Pin 48 | PE3 — Port E bit 3 |
| Pin 49 | PE4 — Port E bit 4 |
| Pin 50 | PE5 — Port E bit 5 |
| Pin 51 | PE6 — Port E bit 6 |
| Pin 52 | PE7 — Port E bit 7 |
| Pin 53 | PH0 — Port H bit 0 / CAN0 TX |
| Pin 54 | PH1 — Port H bit 1 / CAN0 RX |
| Pin 55 | PH2 — Port H bit 2 / CAN1 TX |
| Pin 56 | PH3 — Port H bit 3 / CAN1 RX |
| Pin 57 | PH4 — Port H bit 4 / CAN2 TX |
| Pin 58 | PH5 — Port H bit 5 / CAN2 RX |
| Pin 59 | PH6 — Port H bit 6 / CAN3 TX |
| Pin 60 | PH7 — Port H bit 7 / CAN3 RX |
| Pin 61 | PJ0 — Port J bit 0 / SCL |
| Pin 62 | PJ1 — Port J bit 1 / SDA |
| Pin 63 | PJ2 — Port J bit 2 |
| Pin 64 | PJ3 — Port J bit 3 |
| Pin 65 | PJ4 — Port J bit 4 |
| Pin 66 | PJ5 — Port J bit 5 |
| Pin 67 | PJ6 — Port J bit 6 |
| Pin 68 | PJ7 — Port J bit 7 |
| Pin 69 | PK0 — Port K bit 0 / SPI SCK |
| Pin 70 | PK1 — Port K bit 1 / SPI MOSI |
| Pin 71 | PK2 — Port K bit 2 / SPI MISO |
| Pin 72 | PK3 — Port K bit 3 / SPI SS |
| Pin 73 | PK4 — Port K bit 4 / SCI TX |
| Pin 74 | PK5 — Port K bit 5 / SCI RX |
| Pin 75 | PP0 — Port P bit 0 / PWM |
| Pin 76 | PP1 — Port P bit 1 / PWM |
| Pin 77 | PP2 — Port P bit 2 / PWM |
| Pin 78 | PP3 — Port P bit 3 / PWM |
| Pin 79 | PP4 — Port P bit 4 / PWM |
| Pin 80 | PP5 — Port P bit 5 / PWM |
| Pin 81 | PP6 — Port P bit 6 / PWM |
| Pin 82 | PP7 — Port P bit 7 / PWM |
| Pin 83 | PS0 — Port S bit 0 / SCI1 TX |
| Pin 84 | PS1 — Port S bit 1 / SCI1 RX |
| Pin 85 | PS2 — Port S bit 2 / SPI1 SCK |
| Pin 86 | PS3 — Port S bit 3 / SPI1 MOSI |
| Pin 87 | PS4 — Port S bit 4 / SPI1 MISO |
| Pin 88 | PS5 — Port S bit 5 / SPI1 SS |
| Pin 89 | PT0 — Port T bit 0 / IOC0 |
| Pin 90 | PT1 — Port T bit 1 / IOC1 |
| Pin 91 | PT2 — Port T bit 2 / IOC2 |
| Pin 92 | PT3 — Port T bit 3 / IOC3 |
| Pin 93 | PT4 — Port T bit 4 / IOC4 |
| Pin 94 | PT5 — Port T bit 5 / IOC5 |
| Pin 95 | PT6 — Port T bit 6 / IOC6 |
| Pin 96 | PT7 — Port T bit 7 / IOC7 |
| Pin 97 | PU0 — Port U bit 0 |
| Pin 98 | PU1 — Port U bit 1 |
| Pin 99 | PU2 — Port U bit 2 |
| Pin 100 | PU3 — Port U bit 3 |
| Pin 101 | PU4 — Port U bit 4 |
| Pin 102 | PU5 — Port U bit 5 |
| Pin 103 | PU6 — Port U bit 6 |
| Pin 104 | PU7 — Port U bit 7 |
| Pin 105 | VDDX0 — I/O supply segment 0 |
| Pin 106 | VSSX0 — I/O ground segment 0 |
| Pin 107 | VDDX1 — I/O supply segment 1 |
| Pin 108 | VSSX1 — I/O ground segment 1 |
| Pin 109 | VDDX2 — I/O supply segment 2 |
| Pin 110 | VSSX2 — I/O ground segment 2 |
| Pin 111 | VDDX3 — I/O supply segment 3 |
| Pin 112 | VSSX3 — I/O ground segment 3 |
Typical Applications
MC9S12XDP512VAL is suitable for 7 applications: Automotive Body Control Module (BCM), CAN Gateway / Network Bridge ECU, Chassis and Powertrain Auxiliary Controller, Industrial CAN-Open Master Node, Automotive Instrument Cluster Auxiliary MCU, CAN-Based Diagnostic and Reprogramming Tool, Battery Management Slave Controller.
Automotive Body Control Module (BCM)
The MC9S12XDP512VAL is a natural fit for body control modules because it combines the 80 MHz HCS12X core with multiple MSCAN 2.0A/B controllers, 119 GPIO and 512 KB Flash - large enough to hold BCM application firmware plus diagnostics. Its XGATE co-processor offloads CAN message filtering and PWM timing, freeing the main CPU to run the body-control state machine. The 2.35 V to 2.75 V supply matches the typical 12 V battery rail after regulator down-conversion.
Recommended
CAN Gateway / Network Bridge ECU
With dual MSCAN modules and 512 KB Flash, the MC9S12XDP512VAL serves as a CAN-to-CAN or CAN-to-LIN gateway in vehicle network architectures. The XGATE engine handles low-level CAN frame forwarding with deterministic latency while the HCS12X core runs routing tables, network management, and diagnostics (UDS/KWP2000). Its 112-pin LQFP package exposes enough GPIO to support status LEDs, wake inputs, and multiple bus enable signals without an external I/O expander.
Recommended
Chassis and Powertrain Auxiliary Controller
The 80 MHz HCS12X core, XGATE data-movement engine, and 8/10-bit ATD converter make the MC9S12XDP512VAL suitable for chassis controllers such as electric power steering (EPS) auxiliaries, suspension modules, and transmission solenoids. The 119 GPIO can drive H-bridge pre-drivers, read wheel-speed sensors through the enhanced capture timer, and sample hydraulic pressure via the ATD - all on one chip. The 512 KB Flash allows in-field firmware updates over CAN calibration protocol (CCP).
Recommended
Industrial CAN-Open Master Node
Industrial automation controllers based on CANopen (CiA 401/402/404) benefit from the MC9S12XDP512VAL's combination of 512 KB Flash for protocol stacks and the XGATE engine for deterministic PDO handling. The 112-pin LQFP, 80 MHz core, and 2.5 V supply allow compact DIN-rail modules that drive 24 V industrial bus nodes through external transceivers. The same HCS12 instruction set allows code reuse from existing S12 industrial platforms.
Recommended
Automotive Instrument Cluster Auxiliary MCU
In distributed instrument clusters, the MC9S12XDP512VAL drives stepper-motor gauges, LED matrix backlights, and CAN diagnostics while the main HCS12X core animates tell-tales and processes vehicle bus messages. The 119 GPIO and multiple PWM channels are sufficient to drive multiple air-core gauges directly, while the 512 KB Flash supports full UDS bootloader and customer-specific graphics scripts.
Recommended
CAN-Based Diagnostic and Reprogramming Tool
Automotive diagnostic tools (service bay programmers, end-of-line testers, fleet telematics) use the MC9S12XDP512VAL as a CAN-FD-ready MCU with 512 KB Flash to hold UDS/KWP2000 stacks, calibration routines, and pass-through bootloader logic. Its MSCAN controllers support OBD-II connectivity, while the 80 MHz HCS12X core runs USB-to-CAN protocol conversion with low latency. The XGATE engine handles CAN acknowledge timing deterministically during reflash sessions.
Recommended
Battery Management Slave Controller
Within automotive 48 V mild-hybrid or 12 V battery management systems, the MC9S12XDP512VAL acts as a slave controller performing cell-voltage sampling via its ATD, cell-temperature scanning, and CAN reporting to a master BMS ECU. The 119 GPIO support ISO-SPI daisy chains to multiple cell-monitoring ASICs, while the 512 KB Flash holds calibration tables and safety diagnostics. The XGATE engine provides deterministic timing for cell-balancing PWM.
Recommended
Recommended Products Summary
Engineering reference data for MC9S12XDP512VAL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MC9S12XDT512MAL | MC9S12XDT512CAL | MC9S12XDP512CAL | MC9S12XEQ384CAG |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| 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 |
| Core | HCS12X (16-bit CISC) | HCS12X | HCS12X | HCS12X | HCS12X |
| Maximum Frequency | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| Flash Size | 512 KB | 512 KB | 512 KB | 512 KB | 384 KB |
| XGATE Co-processor | Yes | No | No | Yes | Yes |
| Supply Voltage | 2.35 V to 2.75 V | 2.35 V to 2.75 V | 2.35 V to 2.75 V | 2.35 V to 2.75 V | 2.35 V to 2.75 V |
| Automotive Grade (AEC-Q100) | No (industrial) | No (industrial) | Yes | Yes | Yes |
Key Differentiators
- XGATE co-processor for deterministic interrupt offload (vs MC9S12XDT512MAL)
- Highest Flash density in the 112-LQFP S12X family (vs MC9S12XEQ384CAG)
- Two automotive-grade variants in the same footprint (vs MC9S12XDT512CAL)
Design Notes
The MC9S12XDP512VAL integrates a 2.5 V voltage regulator that must be paired with a proper external ballast transistor and bulk capacitor on the VDDR pin per the reference manual. Place a 100 nF decoupling capacitor close to every VDD/VSS pair, plus a 10 uF bulk capacitor on the regulator output to suppress core-voltage sag during XGATE peripheral bursts and CAN driver events.
The 112-pin LQFP package exposes 119 GPIO and multiple supply/ground segments (VDDX0-3, VSSX0-3). On a 4-layer PCB, dedicate one solid inner plane to ground and route CAN differential pairs (CAN0_H/CAN0_L through CAN3_H/CAN3_L) as 100 ohm-impedance controlled pairs to avoid reflections on the bus. Keep the XTAL/EXTAL traces short and surrounded by ground pour to minimise oscillator jitter.
MSCAn TX/RX pins (PH0-PH7) drive external CAN transceivers such as the TJA1042 or TJA1050. Keep the MCU-to-transceiver traces under 50 mm and add a small series resistor or common-mode choke if the ECU is in a noisy power-train environment. Always place a 100 nF decoupling capacitor near the transceiver VCC pin and verify CAN bus termination (120 ohm) at each end of the bus segment.
Do not leave the TEST pin floating - it must be tied to VSS for normal operation or the device will enter factory test mode. The BKGD pin is shared with mode-entry functionality; ensure your debugger connector includes the standard NXP BDM pull-up arrangement so background debug mode (BDM) cannot be accidentally entered during power-on transients. When migrating from older S12XD masksets, verify that the new silicon revision matches the reference manual Rev. 2.21.
Compliance Information
Lead-free per NXP product page; RoHS/REACH/AEC-Q100 status not explicitly stated in the verified web data. The 'V' suffix in the part number indicates an industrial temperature grade (-40C to +105C); the 'C' suffix (e.g. MC9S12XDP512CAL) denotes the automotive grade.
