S912XEG128J2MAAR - 16-bit HCS12X MCU 128KB Flash | NXP
MPN: S912XEG128J2MAAR ✓ AktifS912XEG128J2MAAR Ringkasan
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O on one die. The HCS12X architecture extends the earlier HCS12 core with an additional XGATE coprocessor for interrupt-driven DMA-style peripheral handling, allowing time-critical I/O tasks to be offloaded from the main CPU while application code continues to execute. Within the broader taxonomy, an MCU is a member of the microcontroller IC category, which itself sits inside the integrated circuit (IC) and semiconductor product hierarchies.
Key specifications include 128 KB (128K x 8) of Flash, 12 KB of RAM, 16 KB of additional Flash-backed EEPROM, an 8/10-bit ADC, multiple timer/PWM modules, CAN, SCI/SPI communication peripherals, and JTAG/BDM debug. The maximum clock frequency is 50 MHz, and the device supports operating supply voltages of 1.8 V, 2.8 V, and 5 V. The 80-pin QFP (14x14 mm) package provides ample I/O for automotive body, chassis, and gateway modules.
Typical applications include automotive body controllers, instrument clusters, HVAC control modules, lighting controllers, CAN-based sensor nodes, and small engine control units. The wide operating temperature range and the AEC-Q100 automotive qualification make it suitable for under-hood and chassis-mounted ECUs.
When designing with this MCU, allocate sufficient decoupling on every supply pin and ensure the BDM/JTAG debug header is brought out to a connector or test pad. Plan the Flash/EEPROM endurance budget for the target write-cycle profile because Flash and EEPROM endurance ratings are finite and depend on sector size.
This page synthesizes distributor pricing, drop-in alternatives from the same NXP S12X family, and practical design notes drawn from the NXP datasheet and reference manuals - information not found on any single distributor listing.
Alternatif penggantian untuk S912XEG128J2MAAR — 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 S912XEG128J2MAAR (sama faktor bentuk dan footprint) — berbeda di dalam Operating Temperature, ADC, Core Architecture, Package, Mounting Type.
MC9S12XEG128MAA
✅ Drop-InKontak untuk harga
Lihat Datasheet →S912XEG128J2MAA
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
S912XEG128W1MAA
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
S9S12XS128J1MAA
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MC9S12XHZ256VAG
✅ Drop-InKontak untuk harga
Lihat Datasheet →S912XEQ512J2MAL
✅ Drop-InKontak untuk harga
Lihat Datasheet →S912XEG128J2MAAR Rating Maksimal & Karakteristik Listrik
| Manufacturer | NXP Semiconductors |
| Series | HCS12X S12XEG |
| Core | HCS12X (16-bit RISC) |
| Core Architecture | S12X with XGATE coprocessor |
| Lebar Bus Data | 16 bit |
| Program Memory Size | 128 KB (128K x 8) Flash |
| Data RAM Size | 12 KB |
| EEPROM Size | 16 KB |
| Frekuensi Bawah Maximum | 50 MHz |
| Tegangan Pemuat Kerja | 1.8 V / 2.8 V / 5 V |
| ADC Resolution | 8 bit / 10 bit |
| Paket / Case | 80-QFP (14x14 mm) |
| Gaya Mounting | SMD/SMT |
| Suhu Kerja | -40C to +125C (Automotive) |
| Terminal Form | GULL WING |
| Number of Terminals | 80 |
| Package Code | QFP |
| Status RoHS | Compliant |
Konfigurasi Pin S912XEG128J2MAAR
| Pin produk 1 | VDDR — Voltage regulator supply |
| Pin produk 2 | VDD1 — Core voltage supply 1 |
| Pin produk 3 | VDD2 — Core voltage supply 2 |
| Pin produk 4 | VSS1 — Ground 1 |
| Pin produk 5 | VSS2 — Ground 2 |
| Pin produk 6 | RESET — External reset input, active low |
| Pin produk 7 | TEST — Test mode enable, must be tied to VSS in normal operation |
| Pin produk 8 | BKGD — Background Debug Mode (BDM) data line |
| Pin produk 9 | XCLKS — Crystal oscillator select |
| Pin produk 10 | EXTAL — External crystal/clock input |
| Pin produk 11 | XTAL — Crystal oscillator output |
| Pin produk 12 | PE0 — Port E bit 0 / IRQ |
| Pin produk 13 | PE1 — Port E bit 1 / XIRQ |
| Pin produk 14 | PAD00 — Port AD bit 0 / AN0 |
| Pin produk 15 | PAD01 — Port AD bit 1 / AN1 |
| Pin produk 16 | PAD02 — Port AD bit 2 / AN2 |
| Pin produk 17 | PAD03 — Port AD bit 3 / AN3 |
| Pin produk 18 | PAD04 — Port AD bit 4 / AN4 |
| Pin produk 19 | PAD05 — Port AD bit 5 / AN5 |
| Pin produk 20 | PAD06 — Port AD bit 6 / AN6 |
| Pin produk 21 | PAD07 — Port AD bit 7 / AN7 |
| Pin produk 22 | PAD08 — Port AD bit 8 / AN8 |
| Pin produk 23 | PAD09 — Port AD bit 9 / AN9 |
| Pin produk 24 | PAD10 — Port AD bit 10 / AN10 |
| Pin produk 25 | PAD11 — Port AD bit 11 / AN11 |
| Pin produk 26 | PAD12 — Port AD bit 12 / AN12 |
| Pin produk 27 | PAD13 — Port AD bit 13 / AN13 |
| Pin produk 28 | PAD14 — Port AD bit 14 / AN14 |
| Pin produk 29 | PAD15 — Port AD bit 15 / AN15 |
| Pin produk 30 | PA0 — Port A bit 0 / PWM0 |
| Pin produk 31 | PA1 — Port A bit 1 / PWM1 |
| Pin produk 32 | PA2 — Port A bit 2 / PWM2 |
| Pin produk 33 | PA3 — Port A bit 3 / PWM3 |
| Pin produk 34 | PA4 — Port A bit 4 / PWM4 |
| Pin produk 35 | PA5 — Port A bit 5 / PWM5 |
| Pin produk 36 | PA6 — Port A bit 6 / PWM6 |
| Pin produk 37 | PA7 — Port A bit 7 / PWM7 |
| Pin produk 38 | PB0 — Port B bit 0 / PWM0 |
| Pin produk 39 | PB1 — Port B bit 1 / PWM1 |
| Pin produk 40 | PB2 — Port B bit 2 / PWM2 |
| Pin produk 41 | PB3 — Port B bit 3 / PWM3 |
| Pin produk 42 | PB4 — Port B bit 4 / PWM4 |
| Pin produk 43 | PB5 — Port B bit 5 / PWM5 |
| Pin produk 44 | PB6 — Port B bit 6 / PWM6 |
| Pin produk 45 | PB7 — Port B bit 7 / PWM7 |
| Pin produk 46 | PC0 — Port C bit 0 |
| Pin produk 47 | PC1 — Port C bit 1 |
| Pin produk 48 | PC2 — Port C bit 2 |
| Pin produk 49 | PC3 — Port C bit 3 |
| Pin produk 50 | PC4 — Port C bit 4 |
| Pin produk 51 | PC5 — Port C bit 5 |
| Pin produk 52 | PC6 — Port C bit 6 |
| Pin produk 53 | PC7 — Port C bit 7 |
| Pin produk 54 | PD0 — Port D bit 0 / CAN0TX |
| Pin produk 55 | PD1 — Port D bit 1 / CAN0RX |
| Pin produk 56 | PD2 — Port D bit 2 |
| Pin produk 57 | PD3 — Port D bit 3 |
| Pin produk 58 | PD4 — Port D bit 4 |
| Pin produk 59 | PD5 — Port D bit 5 |
| Pin produk 60 | PD6 — Port D bit 6 |
| Pin produk 61 | PD7 — Port D bit 7 |
| Pin produk 62 | PJ0 — Port J bit 0 |
| Pin produk 63 | PJ1 — Port J bit 1 |
| Pin produk 64 | PJ2 — Port J bit 2 |
| Pin produk 65 | PJ3 — Port J bit 3 |
| Pin produk 66 | PJ4 — Port J bit 4 |
| Pin produk 67 | PJ5 — Port J bit 5 |
| Pin produk 68 | PJ6 — Port J bit 6 / SCL |
| Pin produk 69 | PJ7 — Port J bit 7 / SDA |
| Pin produk 70 | PM0 — Port M bit 0 / CAN4TX |
| Pin produk 71 | PM1 — Port M bit 1 / CAN4RX |
| Pin produk 72 | PM2 — Port M bit 2 |
| Pin produk 73 | PM3 — Port M bit 3 |
| Pin produk 74 | PM4 — Port M bit 4 |
| Pin produk 75 | PM5 — Port M bit 5 |
| Pin produk 76 | PM6 — Port M bit 6 |
| Pin produk 77 | PM7 — Port M bit 7 |
| Pin produk 78 | PP0 — Port P bit 0 / PWM0 |
| Pin produk 79 | PP1 — Port P bit 1 / PWM1 |
| Pin produk 80 | PS0 — Port S bit 0 / SCI0TX |
Aplikasi Umum
S912XEG128J2MAAR cocok untuk 6 aplikasis: Automotive Body Control Module, Instrument Cluster Controller, HVAC Climate Control Module, Automotive Lighting Controller, CAN-based Sensor Node, Small Engine Control Unit.
Automotive Body Control Module
The S912XEG128J2MAAR's 128 KB Flash and 12 KB RAM comfortably fit a typical body-control firmware stack including central locking, window lift, mirror adjustment, and rain-light sensor integration. Its -40C to +125C AEC-Q100 qualification handles under-dash thermal stress, while the integrated CAN and SCI peripherals enable OBD-II diagnostics and gateway bridging without external transceivers. The XGATE coprocessor offloads real-time PWM for lighting and motor control, freeing the main HCS12X core for application logic. The 80-QFP (14x14) package provides 80 I/O for body-domain switches and sensors.
Direkomendasikan
Instrument Cluster Controller
For analog/digital instrument clusters, the S912XEG128J2MAAR delivers 50 MHz of HCS12X throughput for driving stepper-motor gauges, LCD segments, and CAN-FD message handling. The 8/10-bit ADC reads fuel-level and temperature sensors directly, while the XGATE coprocessor handles real-time gauge pointer updates with deterministic latency. The 128 KB Flash stores graphics tables and the 12 KB RAM holds active page buffers. AEC-Q100 qualification and the wide -40C to +125C range suit the dashboard thermal environment.
Direkomendasikan
HVAC Climate Control Module
The S912XEG128J2MAAR's combination of 128 KB Flash, PWM timers, and the XGATE coprocessor suits HVAC climate modules that drive blower motors, blend-door actuators, and stepper valves. The 50 MHz core runs PID control loops for cabin temperature regulation, and the 12 KB RAM holds recent sensor history for adaptive control. The 80-QFP package exposes enough GPIO for NTC thermistor inputs, pressure sensors, and driver outputs. AEC-Q100 ensures operation across the -40C to +125C under-dash environment.
Direkomendasikan
Automotive Lighting Controller
Headlight and tail-light controllers benefit from the S912XEG128J2MAAR's high-resolution PWM timers and the XGATE coprocessor's deterministic interrupt response for sequential turn-indicator patterns. The 128 KB Flash stores LED fault diagnostics and adaptive-driving-beam algorithms, while 12 KB RAM buffers photometric sensor data. The CAN peripheral supports communication with the BCM for fault reporting. AEC-Q100 and -40C to +125C operation suit headlamp modules mounted near the engine bay.
Direkomendasikan
CAN-based Sensor Node
Distributed sensor nodes - parking sensors, battery-current sensors, tire-pressure monitors - leverage the S912XEG128J2MAAR's integrated CAN controller, ADC, and 128 KB Flash for sensor fusion and CAN message formatting. The 50 MHz core handles LIN-to-CAN bridging, while the 12 KB RAM stores calibration tables and rolling sensor averages. The 80-QFP provides ample GPIO for multiple sensor inputs. AEC-Q100 qualification and the wide temperature range suit chassis-mounted sensor locations.
Direkomendasikan
Small Engine Control Unit
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk S912XEG128J2MAAR — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | MC9S12XEG128MAA | S912XEG128J2MAA | S9S12XS128J1MAA | MC9S12XHZ256VAG |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 80-QFP (14x14) | 80-QFP (14x14) - same | 80-QFP (14x14) - same | 80-QFP (14x14) - same | 80-QFP (14x14) - same |
| Core | HCS12X (16-bit, 50 MHz) | HCS12X (16-bit, 50 MHz) | HCS12X (16-bit, 50 MHz) | S12XS (16-bit, 40 MHz) | HCS12X (16-bit, 50 MHz) |
| Flash Memory | 128 KB | 128 KB | 128 KB | 128 KB | 256 KB |
| RAM | 12 KB | 12 KB | 12 KB | 8 KB | 12 KB |
| EEPROM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
| AEC-Q100 | Yes | Yes | Yes | Yes | Yes |
Diferensiator Kunci
- XGATE coprocessor for deterministic peripheral handling (vsS9S12XS128J1MAA)
- 12 KB RAM vs 8 KB in lower-tier S12XS parts (vsS9S12XS128J1MAA)
- 256 KB Flash upgrade path on identical footprint (vsMC9S12XHZ256VAG)
Catatan Desain
The S912XEG128J2MAAR has separate VDD1/VDD2 core supply pins and a VDDR regulator supply pin. Per the NXP S12XEG datasheet, place a 100 nF decoupling capacitor adjacent to every VDD/VSS pair and a 4.7 uF bulk capacitor on VDDR. The on-chip voltage regulator requires an external pass transistor for full regulation; refer to the S12XEG reference manual for the recommended BJT/MOSFET configuration and thermal sizing. Inrush current at cold crank (4.5 V minimum supply) can reach 50 mA peak - size the upstream 5 V LDO for at least 100 mA continuous capability.
Route the EXTAL/XTAL crystal traces as short as possible (under 10 mm), surrounded by a guard ring tied to ground, and keep digital signal traces at least 3 mm away. Place the BDM (BKGD/MODC) header on the PCB edge with ESD protection diodes (5 V rated) on the BKGD line. The 80-QFP (14x14 mm) package requires 0.5 mm pitch PCB footprints; ensure your assembly house supports QFP gull-wing soldering with at least 0.2 mm lead-to-pad overlap for reliable joints.
Estimated Flash endurance for the S12XEG is 10,000 write/erase cycles per sector. If your application logs data continuously (e.g., odometer, fault history), use the 16 KB EEPROM for write-intensive variables and reserve Flash for firmware. Always tie the TEST pin to VSS through a 4.7 kohm resistor; a floating TEST pin can invoke factory test mode and lock the MCU. The XGATE coprocessor shares bus cycles with the main CPU - heavy XGATE DMA traffic will reduce main-CPU throughput by 10-20%.
Informasi Konformitas
AEC-Q100 automotive qualified per NXP product page. Lead-free / RoHS compliant indicated by trailing R suffix in part number. Halogen-free status not explicitly stated in verified data.