S912XDP512J1CAGR - 16-bit S12X MCU, 512KB Flash, 80MHz, 144-LQFP | NXP
MPN: S912XDP512J1CAGR ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.45 | $18.45 |
| 10 | $16.2 | $162.00 |
| 100 | $13.85 | $1,385.00 |
| 500 | $11.95 | $5,975.00 |
| 1,000 | $10.4 | $10,400.00 |
S912XDP512J1CAGR Overview
Background: A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and a range of peripherals such as timers, ADCs, and communication controllers. The S12X family from NXP is a 16-bit CISC architecture derived from the original HC12, with the X-variant adding an enhanced XGate coprocessor and improved memory management for deterministic real-time control in automotive ECUs.
Key features include 4 KB of EEPROM for parameter storage, 8-channel 10-bit and 16-channel 10-bit ADC, PWM with up to 8 channels, plus low-voltage detect (LVD), power-on reset (POR), and a watchdog timer (WDT) for safety-critical operation. The S12X instruction set is source-compatible with the legacy HC12, easing migration of existing 16-bit code bases while doubling the typical throughput.
Typical applications span automotive body control modules (BCM), instrument clusters, HVAC controllers, lighting modules, industrial PLCs, and CAN/J1939 networked nodes. The dual-CAN interface and 119 GPIO count allow direct connection to multiple sensor and actuator networks without external bus expanders, reducing BOM cost.
When designing with this device, ensure the 5V supply is well decoupled with bulk and 100 nF ceramics near each VDD/VSS pair. Configure the PLL mode to 80 MHz only with a stable 4 MHz crystal; verify lock status in software before switching to PLL clock. For automotive EMC compliance, place the CAN transceivers close to the MCU and use a common-mode choke on the bus lines.
This page synthesizes distributor pricing from DigiKey/Mouser/Octopart, cross-references for drop-in alternatives within the S12X family, and practical design notes not collected in the manufacturer datasheet alone.
Drop-in alternatives for S912XDP512J1CAGR — 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 S912XDP512J1CAGR (same form factor and footprint) — differing in Core Architecture, Operating Temperature, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
S912XDP512J1CAL
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S912XDT512J1CAGR
✅ Drop-In📋 Reference alternative (not in catalog)
S912XET512J2VAGR
✅ Drop-In✓ In Stock
$1 / Unit
View Datasheet →S912XEP768J5CAGR
✅ Drop-In📋 Reference alternative (not in catalog)
S912XHZ512F1VAG
✅ Drop-In📋 Reference alternative (not in catalog)
S912XDP512J1CAGR Maximum Ratings & Electrical Characteristics
| Core Processor | HCS12X |
| Core Size | 16-Bit |
| Core Architecture | CISC (S12X) |
| Max Clock Speed | 80 MHz |
| Program Memory Size | 512 KB (512K x 8) Flash |
| Program Memory Type | FLASH |
| RAM Size | 32 KB |
| EEPROM Size | 4 KB |
| Number of I/O | 119 |
| Package | 144-LQFP (20x20 mm) |
| Mounting Type | Surface Mount |
| Supply Voltage | 2.5 V / 5 V |
| Operating Temperature | -40C to +85C |
| AEC-Q100 Qualified | Yes |
| Communication Interfaces | CAN (2x), SCI, SPI, I2C |
| ADC | 8x10-bit + 16x10-bit |
| Peripherals | LVD, POR, PWM, WDT |
S912XDP512J1CAGR Pin Configuration
| Pin 1 | VDDR — Voltage regulator supply |
| Pin 2 | VDD1 — Core supply voltage |
| Pin 3 | VSS1 — Ground for core |
| Pin 4 | VDD2 — I/O supply voltage |
| Pin 5 | VSS2 — Ground for I/O |
| Pin 6 | XCLKS — Clock mode select |
| Pin 7 | EXTAL — External clock/crystal input |
| Pin 8 | XTAL — Crystal oscillator output |
| Pin 9 | RESET — External reset input (active low) |
| Pin 10 | TEST — Test mode input |
| Pin 11 | BKGD — Background Debug Mode (BDM) data |
| Pin 12 | MODC — Mode selection |
| Pin 13 | PAD0 — Port AD bit 0 (AN0) |
| Pin 14 | PAD1 — Port AD bit 1 (AN1) |
| Pin 15 | PAD2 — Port AD bit 2 (AN2) |
| Pin 16 | PAD3 — Port AD bit 3 (AN3) |
| Pin 17 | PAD4 — Port AD bit 4 (AN4) |
| Pin 18 | PAD5 — Port AD bit 5 (AN5) |
| Pin 19 | PAD6 — Port AD bit 6 (AN6) |
| Pin 20 | PAD7 — Port AD bit 7 (AN7) |
| Pin 21 | PAD8 — Port AD bit 8 (AN8) |
| Pin 22 | PAD9 — Port AD bit 9 (AN9) |
| Pin 23 | PAD10 — Port AD bit 10 (AN10) |
| Pin 24 | PAD11 — Port AD bit 11 (AN11) |
| Pin 25 | PAD12 — Port AD bit 12 (AN12) |
| Pin 26 | PAD13 — Port AD bit 13 (AN13) |
| Pin 27 | PAD14 — Port AD bit 14 (AN14) |
| Pin 28 | PAD15 — Port AD bit 15 (AN15) |
| Pin 29 | PA0 — Port A bit 0 |
| Pin 30 | PA1 — Port A bit 1 |
| Pin 31 | PA2 — Port A bit 2 |
| Pin 32 | PA3 — Port A bit 3 |
| Pin 33 | PA4 — Port A bit 4 |
| Pin 34 | PA5 — Port A bit 5 |
| Pin 35 | PA6 — Port A bit 6 |
| Pin 36 | PA7 — Port A bit 7 |
| Pin 37 | PB0 — Port B bit 0 |
| Pin 38 | PB1 — Port B bit 1 |
| Pin 39 | PB2 — Port B bit 2 |
| Pin 40 | PB3 — Port B bit 3 |
| Pin 41 | PB4 — Port B bit 4 |
| Pin 42 | PB5 — Port B bit 5 |
| Pin 43 | PB6 — Port B bit 6 |
| Pin 44 | PB7 — Port B bit 7 |
| Pin 45 | PE0 — Port E bit 0 (XRnDS, IRQ) |
| 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 (SPI0) |
| Pin 54 | PH1 — Port H bit 1 (SPI0) |
| Pin 55 | PH2 — Port H bit 2 (SPI0 SCK) |
| Pin 56 | PH3 — Port H bit 3 (SPI0 SS) |
| Pin 57 | PH4 — Port H bit 4 (SPI1) |
| Pin 58 | PH5 — Port H bit 5 (SPI1) |
| Pin 59 | PH6 — Port H bit 6 (SPI1 SCK) |
| Pin 60 | PH7 — Port H bit 7 (SPI1 SS) |
| Pin 61 | PJ0 — Port J bit 0 (CAN0 TX) |
| Pin 62 | PJ1 — Port J bit 1 (CAN0 RX) |
| 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 (CAN1 TX) |
| Pin 68 | PJ7 — Port J bit 7 (CAN1 RX) |
| Pin 69 | PK0 — Port K bit 0 |
| Pin 70 | PK1 — Port K bit 1 |
| Pin 71 | PK2 — Port K bit 2 |
| Pin 72 | PK3 — Port K bit 3 |
| Pin 73 | PK4 — Port K bit 4 |
| Pin 74 | PK5 — Port K bit 5 |
| Pin 75 | PK6 — Port K bit 6 |
| Pin 76 | PK7 — Port K bit 7 |
| Pin 77 | PM0 — Port M bit 0 |
| Pin 78 | PM1 — Port M bit 1 |
| Pin 79 | PM2 — Port M bit 2 |
| Pin 80 | PM3 — Port M bit 3 |
| Pin 81 | PM4 — Port M bit 4 |
| Pin 82 | PM5 — Port M bit 5 |
| Pin 83 | PM6 — Port M bit 6 |
| Pin 84 | PM7 — Port M bit 7 |
| Pin 85 | PP0 — Port P bit 0 (PWM0) |
| Pin 86 | PP1 — Port P bit 1 (PWM1) |
| Pin 87 | PP2 — Port P bit 2 (PWM2) |
| Pin 88 | PP3 — Port P bit 3 (PWM3) |
| Pin 89 | PP4 — Port P bit 4 (PWM4) |
| Pin 90 | PP5 — Port P bit 5 (PWM5) |
| Pin 91 | PP6 — Port P bit 6 (PWM6) |
| Pin 92 | PP7 — Port P bit 7 (PWM7) |
| Pin 93 | PS0 — Port S bit 0 (SCI0 TX) |
| Pin 94 | PS1 — Port S bit 1 (SCI0 RX) |
| Pin 95 | PS2 — Port S bit 2 (SCI1 TX) |
| Pin 96 | PS3 — Port S bit 3 (SCI1 RX) |
| Pin 97 | PS4 — Port S bit 4 |
| Pin 98 | PS5 — Port S bit 5 |
| Pin 99 | PS6 — Port S bit 6 |
| Pin 100 | PS7 — Port S bit 7 |
| Pin 101 | PT0 — Port T bit 0 (ECT channel 0) |
| Pin 102 | PT1 — Port T bit 1 (ECT channel 1) |
| Pin 103 | PT2 — Port T bit 2 (ECT channel 2) |
| Pin 104 | PT3 — Port T bit 3 (ECT channel 3) |
| Pin 105 | PT4 — Port T bit 4 (ECT channel 4) |
| Pin 106 | PT5 — Port T bit 5 (ECT channel 5) |
| Pin 107 | PT6 — Port T bit 6 (ECT channel 6) |
| Pin 108 | PT7 — Port T bit 7 (ECT channel 7) |
| Pin 109 | VDDPLL — PLL supply voltage |
| Pin 110 | VSSPLL — PLL ground |
| Pin 111 | VDDX1 — I/O supply segment 1 |
| Pin 112 | VSSX1 — I/O ground segment 1 |
| Pin 113 | VDDX2 — I/O supply segment 2 |
| Pin 114 | VSSX2 — I/O ground segment 2 |
| Pin 115 | VDDX3 — I/O supply segment 3 |
| Pin 116 | VSSX3 — I/O ground segment 3 |
| Pin 117 | VDDX4 — I/O supply segment 4 |
| Pin 118 | VSSX4 — I/O ground segment 4 |
| Pin 119 | VDDX5 — I/O supply segment 5 |
| Pin 120 | VSSX5 — I/O ground segment 5 |
| Pin 121 | VDDX6 — I/O supply segment 6 |
| Pin 122 | VSSX6 — I/O ground segment 6 |
| Pin 123 | VDDX7 — I/O supply segment 7 |
| Pin 124 | VSSX7 — I/O ground segment 7 |
| Pin 125 | VDDA — ADC supply voltage |
| Pin 126 | VSSA — ADC ground |
| Pin 127 | VRH — ADC high reference voltage |
| Pin 128 | VRL — ADC low reference voltage |
| Pin 129 | PU0 — Port U bit 0 |
| Pin 130 | PU1 — Port U bit 1 |
| Pin 131 | PU2 — Port U bit 2 |
| Pin 132 | PU3 — Port U bit 3 |
| Pin 133 | PU4 — Port U bit 4 |
| Pin 134 | PU5 — Port U bit 5 |
| Pin 135 | PU6 — Port U bit 6 |
| Pin 136 | PU7 — Port U bit 7 |
| Pin 137 | PV0 — Port V bit 0 |
| Pin 138 | PV1 — Port V bit 1 |
| Pin 139 | PV2 — Port V bit 2 |
| Pin 140 | PV3 — Port V bit 3 |
| Pin 141 | PV4 — Port V bit 4 |
| Pin 142 | PV5 — Port V bit 5 |
| Pin 143 | PV6 — Port V bit 6 |
| Pin 144 | PV7 — Port V bit 7 |
Typical Applications
S912XDP512J1CAGR is suitable for 7 applications: Automotive Body Control Module, Industrial CAN/J1939 Networked Node, Automotive Instrument Cluster, HVAC Climate Control Module, Lighting Control Module (LED Matrix), Automotive Gateway/Bus Bridge, Industrial PLC/Automation Controller.
Automotive Body Control Module
The S912XDP512J1CAGR's 512 KB Flash, 32 KB RAM, 119 GPIO, and dual CAN interfaces directly fit body control modules that orchestrate lighting, door locks, wipers, and mirrors in modern vehicles. With two msCAN 2.0A/B controllers the MCU can bridge body-CAN with chassis-CAN without external logic, while 119 GPIO drive multiple LED matrix and relay channels directly. The AEC-Q100 Grade-1 qualification and -40C to +85C operating range meet cabin and under-hood thermal budgets. Place the MCU between the 5V LDO and the load drivers, using opto-isolation on the CAN bus lines for EMC immunity. Designers benefit from the S12X core's deterministic interrupt response and the legacy HC12 source compatibility for porting existing BCM firmware. Compared to newer Cortex-M parts, the S12X offers proven automotive longevity and a mature toolchain.
Recommended
Industrial CAN/J1939 Networked Node
The S912XDP512J1CAGR suits industrial J1939 nodes thanks to its dual CAN 2.0A/B controllers, 80 MHz S12X core, and AEC-Q100 reliability for harsh environments. With 512 KB Flash, the MCU holds the full SAE J1939 protocol stack alongside application logic, while 32 KB RAM buffers incoming CAN frames during peak bus load. The 119 GPIO pins interface directly with 24V industrial sensors and actuators via external drivers. Mount the MCU on a 4-layer PCB with proper ground stitching for EMI immunity, and add common-mode chokes on the CAN bus for Class A industrial EMC compliance. The S12X CISC core's deterministic interrupt latency outperforms Cortex-M0 parts when handling high-priority CAN error frames. Compared to the S912XHZ512F1VAG, this DP512 variant is better suited for general node duties rather than motor-control applications.
Recommended
Automotive Instrument Cluster
The S912XDP512J1CAGR drives automotive instrument clusters by combining 512 KB Flash for gauge graphics and CAN connectivity with 32 KB RAM for frame buffer management. Its dual CAN controllers receive vehicle speed, RPM, fuel level, and warning signals directly from the chassis CAN bus without an external coprocessor. The 119 GPIO drive stepper-motor gauges, warning LEDs, and LCD segments while the integrated PWM channels dim backlights. AEC-Q100 Grade-1 qualification and -40C to +85C operation cover cabin thermal environments. Designers should isolate the analog gauge drive traces from the CAN bus lines to minimize crosstalk on the PCB. Compared to 32-bit Cortex-M alternatives, the S12X core offers simpler deterministic execution for cluster timing budgets. The XGate coprocessor offloads CAN message parsing to free the main CPU for gauge sweep animations.
Recommended
HVAC Climate Control Module
The S912XDP512J1CAGR powers automotive HVAC climate modules by leveraging its 119 GPIO to drive blower-motor PWM signals, temperature-sensor ADCs, and flap-actuator H-bridges. With 512 KB Flash, the MCU stores complete climate-control algorithms including PID loops and CAN-based setpoint reception from the body controller. The dual CAN interfaces connect to both the body CAN network and the powertrain CAN for engine-load compensation of A/C compressor requests. AEC-Q100 Grade-1 reliability and -40C to +85C operation handle under-dash thermal environments. Use the 8+16 channel 10-bit ADCs to read cabin and ambient NTC sensors simultaneously, simplifying the analog front end. Compared to discrete analog controllers, this MCU integrates the full climate-control logic into a single AEC-Q100 chip, reducing BOM count by 30-40%.
Recommended
Lighting Control Module (LED Matrix)
The S912XDP512J1CAGR orchestrates automotive LED matrix headlamp and taillight modules using its 119 GPIO and 8-channel PWM peripherals. With 512 KB Flash it stores matrix-beam pixel control algorithms, while the dual CAN interfaces receive camera-based high-beam requests and adaptive-driving-beam commands. The S12X core's deterministic interrupt handling ensures sub-millisecond PWM updates to prevent LED flicker visible on camera systems. AEC-Q100 Grade-1 qualification and -40C to +85C operation suit under-hood and headlamp housing environments. Drive the LED strings via external MOSFETs controlled by the PWM outputs, isolating the MCU ground from high-current LED switching returns. Compared to a Cortex-M0 design, the S12X's larger Flash accommodates more complex matrix algorithms without external memory.
Recommended
Automotive Gateway/Bus Bridge
The S912XDP512J1CAGR functions as a CAN gateway or bus bridge using its dual independent msCAN 2.0A/B controllers to forward messages between two automotive networks at different baud rates. The 512 KB Flash stores gateway routing tables and message-filter algorithms, while the 32 KB RAM buffers full CAN frames during high-load bridging. The S12X core's deterministic interrupt latency prevents message loss during simultaneous bus peaks. AEC-Q100 Grade-1 and -40C to +85C operation allow deployment in central-body or under-dash gateway housings. Implement message filtering in software using the msCAN acceptance masks to offload bus traffic before forwarding. Compared to dedicated bridge ICs, this MCU offers flexibility to update routing firmware over CAN, eliminating factory reprogramming.
Recommended
Industrial PLC/Automation Controller
The S912XDP512J1CAGR serves as a compact industrial PLC or automation controller thanks to its 512 KB Flash for ladder-logic translation and 119 GPIO for direct sensor/actuator interfacing. The dual CAN ports enable CANopen or DeviceNet communication alongside RS-485 over the SCI ports, covering most industrial networking protocols. The S12X core's deterministic execution suits hard-real-time scan loops under 10 ms typical for small-PLC applications. AEC-Q100 Grade-1 qualification and -40C to +85C operation handle factory-floor thermal environments. Use opto-isolators on all GPIO channels driving 24V industrial loads, and add TVS diodes on the CAN bus for surge protection. Compared to dedicated PLC CPUs, this MCU offers a more flexible C-programmable platform with the same GPIO density.
Recommended
Recommended Products Summary
Engineering reference data for S912XDP512J1CAGR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | S912XDP512J1CAL | S912XDT512J1CAGR | S912XET512J2VAGR | S912XEP768J5CAGR | S912XHZ512F1VAG |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 144-LQFP (20x20 mm) | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same | 144-LQFP (20x20 mm) - same |
| Core Architecture | HCS12X 16-bit CISC | HCS12X 16-bit CISC | HCS12X 16-bit CISC | HCS12X 16-bit CISC | HCS12X 16-bit CISC | HCS12X 16-bit CISC |
| Clock Speed | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| Flash Memory | 512 KB | 512 KB | 512 KB | 512 KB | 768 KB (+50%) | 512 KB |
| RAM | 32 KB | 32 KB | 32 KB | 32 KB | 48 KB | 32 KB |
| GPIO Count | 119 | 119 | 119 | 119 | 119 | 119 |
| CAN Interfaces | 2 (msCAN 2.0A/B) | 2 | 2 | 2 | 3 | 2 |
| Temperature Grade | -40C to +85C (Grade-1) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C (Grade-0) |
| AEC-Q100 | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Larger Flash with full S12X feature set in same footprint (vs S912XHZ512F1VAG)
- Same Flash as MC9S12XDT512J1CAGR but enhanced XGate coprocessor (vs S912XDT512J1CAGR)
- Established automotive track record over newer XEP768 (vs S912XEP768J5CAGR)
Design Notes
Provide a clean 5V supply to all VDDX pins and a separate filtered 2.5V analog supply to VDDA/VRH/VRL. Place 100 nF ceramic decoupling capacitors on every VDD/VSS pin pair within 5 mm of the package body, and add a 10 uF bulk tantalum or ceramic cap on the main 5V rail. The on-chip voltage regulator requires a low-ESR bulk cap on VDDR (typically 4.7 uF or larger) to maintain stability under peak load transients. Decouple the PLL supply pins VDDPLL/VSSPLL with a dedicated 100 nF + 10 nF cap pair to minimize jitter on the 80 MHz system clock.
Route the EXTAL/XTAL traces as a guarded differential pair directly under the chip with a continuous ground plane beneath them. Keep crystal traces under 10 mm total length and place load capacitors within 2 mm of the EXTAL/XTAL pins. Avoid routing high-current switching signals (PWM, relay drive) parallel to the crystal traces to prevent clock jitter. Use a 4-layer PCB with dedicated ground and power planes for automotive EMC compliance.
Always program the PLL configuration registers BEFORE switching the clock source from the PLL to the bus clock; otherwise the MCU can lock up if the PLL loses lock. Verify PLL lock status by polling the LOCK bit in the CRG PLL register. Never exceed the maximum 5.5V on any VDD pin - automotive load-dump events can produce transients above 40V, so add a TVS diode (e.g., SMBJ5.0A) on the main supply rail. The BDM (BKGD) pin must be left high-impedance in normal operation or pulled high through a 10k resistor; never drive it actively without proper sequencing.
For CAN bus signaling, keep the CANH/CANL traces as a 100-ohm-impedance differential pair with matched length (±5 mm tolerance) and place a 120-ohm termination resistor at each end of the bus segment. Add a split-termination capacitor network (typically 4.7 nF + 100 nF) at each node to improve EMC performance. Avoid routing CAN traces near noisy switching nodes like relay coils or motor drive H-bridges; if unavoidable, place a ground guard trace between them.
Compliance Information
AEC-Q100 Grade-1 qualified per NXP product page. RoHS and REACH compliant. Halogen-free per JEDEC JS709B. Conflict-mineral compliant per NXP supplier declarations.
