S912XDG128F2MAL - 16-bit 80MHz 128KB MCU | NXP | Automotive
MPN: S912XDG128F2MAL ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.5 | $12.50 |
| 10 | $11.25 | $112.50 |
| 100 | $9.8 | $980.00 |
| 500 | $8.75 | $4,375.00 |
| 1,000 | $7.95 | $7,950.00 |
S912XDG128F2MAL Overview
A microcontroller unit (MCU) is a single integrated circuit that combines a processor core, program memory (Flash), data memory (RAM), and peripherals such as timers, serial interfaces, and ADCs into one chip. Within the powertrain and body-electronics hierarchy, the MCU sits at the center of the electronic control unit (ECU), orchestrating sensors, actuators, and communication buses. The HCS12X family extends NXP's (formerly Freescale Semiconductor) widely adopted HCS12 architecture with an enhanced instruction set and a co-processor (XGATE) concept for concurrent I/O processing.
Key features of the S912XDG128F2MAL include the 16-bit HCS12X CISC CPU that is upward compatible with the HCS12 instruction set, identical interrupt stacking and programmer's model, an instruction queue, enhanced indexed addressing, and an enhanced instruction set. Automotive qualification (AEC-Q100), a -40 to +125 degC operating range, and a 2.5V/5V supply regime make it suitable for harsh vehicle environments.
Architecturally, the device belongs to the S12X DG sub-family, pairing 128KB of on-chip Flash with 12KB of RAM. The enhanced core executes from a queue that smooths bus bandwidth, while upward HCS12 compatibility allows existing code bases to migrate with minimal changes - an important benefit for long-lifecycle automotive platforms.
Typical applications include automotive body control modules, gateway nodes, instrument clusters, HVAC controllers, and industrial control systems that require a proven 16-bit core with Flash-based reprogrammability and robust EMC behavior.
When designing with this part, plan for Flash programming voltage and oscillator configuration early, and verify errata against your mask-set, since the device is now marked End of Life by NXP.
This page synthesizes distributor pricing tiers, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for S912XDG128F2MAL — 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 S912XDG128F2MAL (same form factor and footprint) — differing in Supply Voltage, Package, Core Processor, Operating Temperature, Qualification.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
S912XET512BMAGR
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$6.6 / Unit
View Datasheet →S912XDG128F1MAL
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MC9S12XDT256CAG
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$17.4 / Unit
View Datasheet →MC9S12DG128MPV
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
Contact for price
View Datasheet →MC9S12DG128VFUE
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
Contact for price
View Datasheet →S912XDG128F2MAL Maximum Ratings & Electrical Characteristics
| Core Processor | HCS12X (16-bit CISC) |
| Core Size | 16-bit |
| Speed | 80 MHz |
| Program Memory Size | 128 KB (128K x 8) Flash |
| RAM Size | 12K x 8 |
| Number of I/O | 91 |
| Supply Voltage | 2.5 V / 5 V |
| Package / Case | 112-LQFP (20x20 mm) |
| Mounting Type | Surface Mount |
| Terminal Form | Gull Wing |
| Operating Temperature | -40 degC to +125 degC |
| Industry Application | Automotive |
| Qualification | AEC-Q100 |
| Architecture Compatibility | Upward compatible with HCS12 instruction set |
| Packaging | Tray |
S912XDG128F2MAL 112-lqfp (20x20 mm) Pin Configuration Guide
Pin configuration for S912XDG128F2MAL (112-lqfp (20x20 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for S912XDG128F2MAL.
Refer to the datasheet for full pin configuration.
Typical Applications
S912XDG128F2MAL is suitable for 6 applications: Automotive Body Control Module, Vehicle Gateway Node, Instrument Cluster, HVAC Controller, Industrial Control Systems, Powertrain Auxiliary ECUs.
Automotive Body Control Module
The S912XDG128F2MAL fits body control modules (BCM) because its 16-bit HCS12X core at 80 MHz with 91 I/O lines can directly drive relays, lamps, door locks, and wiper motors while monitoring switch matrices and diagnostic feedback. AEC-Q100 qualification and the -40 to +125 degC range cover under-dash and engine-bay-adjacent environments. The 128KB Flash accommodates full BCM firmware including LIN/CAN stacks and fault diagnostics, and the HCS12-upward instruction set lets OEMs reuse validated driver layers. Placed on the vehicle CAN backbone, the MCU balances deterministic polling of load switches with communication handling, and Flash-based reprogrammability supports end-of-line configuration without changing hardware.
Recommended
Vehicle Gateway Node
As a gateway, the S912XDG128F2MAL bridges multiple in-vehicle network segments using its on-chip CAN and serial peripherals, while the enhanced HCS12X instruction queue sustains message routing at 80 MHz. The 91 I/O lines handle wake-up inputs and mode control, and the 12KB RAM buffers message queues for multi-bus traffic. Automotive AEC-Q100 qualification and the 2.5V/5V supply architecture integrate cleanly with 5V transceivers. Because gateway firmware grows over vehicle programs, the EOL status of this DG128 part should prompt last-time-buy planning or a footprint-compatible S12X upgrade such as the 512KB XET variant, preserving the same 112-LQFP PCB and CAN transceiver topology.
Recommended
Instrument Cluster
In instrument clusters, the S912XDG128F2MAL drives stepper-motor gauges, warning lamps, and LCD segments while multiplexing button inputs and processing speed/fuel signals through its ADC and timer peripherals. The 80 MHz HCS12X core provides headroom for odometer accounting, display refresh, and CAN communication of vehicle parameters, and the 128KB Flash retains calibration and immobilization data. The -40 to +125 degC automotive range and gull-wing 112-LQFP assembly suit dashboard environments with high vibration. Its HCS12-compatible programming model allows long-running cluster platforms to carry forward validated display drivers and network stacks when migrating between S12X memory variants on the same footprint.
Recommended
HVAC Controller
The S912XDG128F2MAL suits automotive HVAC controllers by combining enough I/O (91 lines) for blower stages, flap-position feedback, and button panels with ADC inputs for temperature sensors. Its 80 MHz core executes PID control loops for blower regulation alongside LIN/CAN communication with the BCM, and 12KB RAM comfortably holds state machines and fault logs. AEC-Q100 qualification addresses cabin-bay temperature swings, and Flash reprogrammability supports variant calibration (single/dual-zone) on one PCB. Designers should budget the 5V rail for sensor excitation and verify oscillator accuracy for CAN timing; the EOL designation makes footprint-compatible S12X alternatives a prudent second-source strategy for long-running HVAC platforms.
Recommended
Industrial Control Systems
Beyond vehicles, the S912XDG128F2MAL serves industrial control applications - pump sequencers, gate controllers, and process I/O nodes - where a proven 16-bit CISC core, 5V noise immunity, and 91 I/O lines reduce external logic. The 80 MHz HCS12X core handles control loops and Modbus/CAN-style serial protocols within 128KB Flash, and the wide -40 to +125 degC range tolerates unconditioned cabinets. Gull-wing 112-LQFP assembly supports standard reflow processes. Upward HCS12 compatibility is especially valuable in industrial retrofit programs that carried HCS12 code bases for decades; those programs should now map their firmware onto remaining S12X family stock or the higher-memory XET/XDT variants sharing the same footprint.
Recommended
Powertrain Auxiliary ECUs
Auxiliary powertrain ECUs - throttle-adjacent controllers, fuel-pump modules, and cooling-fan controllers - benefit from the S912XDG128F2MAL's deterministic 16-bit core, timer-heavy peripheral set, and 91 I/O for driving FET pre-drivers and reading position sensors. AEC-Q100 qualification and +125 degC operation fit engine-compartment mounting positions, while the 2.5V/5V dual supply supports precision analog front ends. The 80 MHz bus and instruction queue keep ISR latency low for time-critical crank-synced tasks, and 128KB Flash holds the full control and diagnostic firmware. Given NXP's End-of-Life declaration, powertrain teams should secure last-time-buy inventory or qualify the pin-compatible S912XET512BMAGR with firmware regression testing.
Recommended
Recommended Products Summary
Engineering reference data for S912XDG128F2MAL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | S912XET512BMAGR | MC9S12XDT256CAG | MC9S12DG128MPV |
|---|---|---|---|---|
| Package | 112-LQFP (20x20 mm) | 112-LQFP - same | 112-LQFP - same | 112-LQFP - same |
| Brand | NXP Semiconductors (originally Freescale) | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | 16-bit HCS12X CISC | 16-bit HCS12X CISC | 16-bit HCS12X CISC | 16-bit HCS12 (non-X) |
| Speed | 80 MHz | 80 MHz | 80 MHz | Lower speed grade |
| Flash Memory | 128 KB | 512 KB | 256 KB | 128 KB |
| Automotive Qualification | AEC-Q100, -40 to +125 degC | Automotive qualified | Automotive qualified | Automotive qualified |
Key Differentiators
- Enhanced S12X core with HCS12 code compatibility (vs MC9S12DG128MPV)
- Memory scalability in the same footprint (vs S912XET512BMAGR)
- Automotive qualification breadth (vs MB90F931PMC-GE1 (Fujitsu/Spansion))
Design Notes
NXP marks the S912XDG128F2MAL as End of Life. Before committing the part to new or continuing builds, verify mask-set errata against your firmware, confirm date codes on incoming stock, and execute a last-time-buy sized to your remaining production horizon. If a redesign is required, prefer footprint-compatible S12X family members in 112-LQFP so the PCB land pattern and most driver code carry forward unchanged.
The device operates from a 2.5V/5V supply regime: decouple both domains with 100 nF ceramic capacitors at each supply pin pair plus one bulk capacitor per rail. Ensure the 5V rail tolerates load-dump-adjacent transients through upstream protection (TVS + series element) in automotive applications, and verify brown-out/reset behavior at the minimum operating voltage before releasing the design.
The 112-LQFP (20x20 mm) package with 91 I/O requires careful breakout: use at least a 4-layer PCB with a solid ground plane, keep CAN and oscillator traces short and away from switching loads, and fan out the gull-wing leads with 0.5 mm pitch routing rules. Place the crystal and its load capacitors close to the OSC pins and guard them with ground pour to limit jitter and EMC emissions.
Compliance Information
Data confirms automotive qualification (AEC-Q100) and -40/+125 degC range. RoHS/REACH/lead-free status per the verified data was not stated for this MPN and is marked unknown; confirm on the NXP product page's Environmental Quality section.
