S912XDG128F2VAL - 16-bit S12X MCU, 128KB Flash, 112-LQFP | NXP
MPN: S912XDG128F2VAL ✓ Hoạt độngS912XDG128F2VAL Tóm tắt
A microcontroller (MCU) is a single-chip processor that combines a CPU core, program and data memory, and configurable peripherals on one die. The HCS12X family is the 16-bit flagship of NXP's legacy Freescale HCS12 line; it adds an instruction queue, enhanced indexed addressing, and an enhanced instruction set while remaining source-compatible with HCS12 code. The S12X core sits in the automotive microcontroller hierarchy between HCS12 (8-bit-like, 16-bit bus) and the higher-end PowerPC-based MPC5xxx devices.
Key features of the S912XDG128F2VAL include 128KB of Flash, 2KB of EEPROM, 8KB of RAM (per the S12XD family datasheet), an 80 MHz maximum bus frequency, and an automotive-grade temperature rating of -40°C to +105°C. The HCS12X core uses interrupt stacking and a programmer's model identical to HCS12, simplifying migration of legacy S12 code. An integrated XGATE co-processor (typical of the S12XD sub-family) offloads interrupt-driven I/O, improving aggregate throughput.
Typical application areas include automotive body and chassis control, industrial CAN nodes, HVAC controllers, instrument clusters, and sensor-fusion ECUs. The combination of CAN bus, PWM, and an LVD/POR block makes it well-suited to 12V automotive electrical systems. With 91 GPIO and 5V-tolerant I/O, it can directly drive actuator drivers and read analog/digital sensor inputs.
When designing with this part, ensure your toolchain supports the S12X instruction set (CodeWarrior, Cosmic, IAR). Plan for a 112-LQFP footprint with adequate thermal copper for the -40°C to +105°C automotive range. The pin-compatible variants S912XET256 and S912XDT256 in the LQFP-112 footprint enable easy memory upgrades without PCB rework. Source quotes show this part remains active in distributor inventory as of 2026-10-21, though lifecycle status should be re-verified before long-lifecycle automotive programs.
Bộ thay thế dễ dàng lắp đặt cho S912XDG128F2VAL — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với S912XDG128F2VAL (cùng hình factor và footprint) — khác nhau ở Package, Package Code, Core Architecture, Operating Temperature, Pin Count.
S912XET256F2CALR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
S912XDT256F1VAA
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →S912XES384J3VAL
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →S912XDT384J1MAG
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →S912XEG384AVAGR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →S912XDP512VPVR2
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
S912XDG128F2VAL Tỷ lệ tối đa & tính chất điện
| Manufacturer | NXP Semiconductors |
| Part Number | S912XDG128F2VAL |
| Series | HCS12X S12XD |
| Core Processor | HCS12X |
| Core Size | 16-bit |
| CPU Speed (max) | 80 MHz |
| Program Memory Size | 128 KB (128K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | 2 KB (2K x 8) |
| Number of I/O | 91 |
| Connectivity | CANbus, I²C, SCI, SPI |
| Peripherals | LVD, POR, PWM, WDT |
| Nhiệt độ hoạt động | -40°C to +105°C |
| Hộp | 112-LQFP (20x20 mm) |
| Kiểu lắp đặt | Surface Mount |
| Qualification | Automotive Qualified |
| Cấp MSL | 3 (168 hours) |
| Trạng thái RoHS | Compliant |
Cấu hình chân S912XDG128F2VAL
| Chân 1 | AN7 — Analog input channel 7 / digital I/O |
| Chân 2 | AN6 — Analog input channel 6 / digital I/O |
| Chân 3 | AN5 — Analog input channel 5 / digital I/O |
| Chân 4 | AN4 — Analog input channel 4 / digital I/O |
| Chân 5 | AN3 — Analog input channel 3 / digital I/O |
| Chân 6 | AN2 — Analog input channel 2 / digital I/O |
| Chân 7 | AN1 — Analog input channel 1 / digital I/O |
| Chân 8 | AN0 — Analog input channel 0 / digital I/O |
| Chân 9 | VRH — ADC reference high voltage |
| Chân 10 | VRL — ADC reference low voltage |
| Chân 11 | VDDA — Analog supply voltage |
| Chân 12 | VSSA — Analog ground |
| Chân 13 | BKGD — Background debug mode pin |
| Chân 14 | RESET — External reset (active low) |
| Chân 15 | TEST — Test mode (must be tied to VSS for normal operation) |
| Chân 16 | XIRQ — Non-maskable interrupt request |
| Chân 17 | IRQ — Maskable interrupt request |
| Chân 18 | MODC — Mode selection (normal mode pulled high) |
| Chân 19 | PAD0 — Port AD bit 0 |
| Chân 20 | PAD1 — Port AD bit 1 |
| Chân 21 | PAD2 — Port AD bit 2 |
| Chân 22 | PAD3 — Port AD bit 3 |
| Chân 23 | PAD4 — Port AD bit 4 |
| Chân 24 | PAD5 — Port AD bit 5 |
| Chân 25 | PAD6 — Port AD bit 6 |
| Chân 26 | PAD7 — Port AD bit 7 |
| Chân 27 | PAD8 — Port AD bit 8 |
| Chân 28 | PAD9 — Port AD bit 9 |
| Chân 29 | PAD10 — Port AD bit 10 |
| Chân 30 | PAD11 — Port AD bit 11 |
| Chân 31 | PAD12 — Port AD bit 12 |
| Chân 32 | PAD13 — Port AD bit 13 |
| Chân 33 | PAD14 — Port AD bit 14 |
| Chân 34 | PAD15 — Port AD bit 15 |
| Chân 35 | VDDR — Voltage regulator power (internal regulator input) |
| Chân 36 | VSS1 — Digital ground 1 |
| Chân 37 | VDD1 — Digital supply 1 (2.5V internal / 3.3V-5V I/O) |
| Chân 38 | PE0 — Port E bit 0 / XGATE IRQ |
| Chân 39 | PE1 — Port E bit 1 / XGATE IRQ |
| Chân 40 | PE2 — Port E bit 2 / XGATE IRQ |
| Chân 41 | PE3 — Port E bit 3 / XGATE IRQ |
| Chân 42 | PE4 — Port E bit 4 / XGATE IRQ |
| Chân 43 | PE5 — Port E bit 5 / XGATE IRQ |
| Chân 44 | PE6 — Port E bit 6 / XGATE IRQ |
| Chân 45 | PE7 — Port E bit 7 / XGATE IRQ |
| Chân 46 | PK0 — Port K bit 0 |
| Chân 47 | PK1 — Port K bit 1 |
| Chân 48 | PK2 — Port K bit 2 |
| Chân 49 | PK3 — Port K bit 3 |
| Chân 50 | PK4 — Port K bit 4 |
| Chân 51 | PK5 — Port K bit 5 |
| Chân 52 | PK6 — Port K bit 6 |
| Chân 53 | PK7 — Port K bit 7 |
| Chân 54 | PJ0 — Port J bit 0 |
| Chân 55 | PJ1 — Port J bit 1 |
| Chân 56 | PJ2 — Port J bit 2 |
| Chân 57 | PJ3 — Port J bit 3 |
| Chân 58 | PJ4 — Port J bit 4 |
| Chân 59 | PJ5 — Port J bit 5 |
| Chân 60 | PJ6 — Port J bit 6 |
| Chân 61 | PJ7 — Port J bit 7 |
| Chân 62 | PM0 — Port M bit 0 |
| Chân 63 | PM1 — Port M bit 1 |
| Chân 64 | PM2 — Port M bit 2 |
| Chân 65 | PM3 — Port M bit 3 |
| Chân 66 | PM4 — Port M bit 4 |
| Chân 67 | PM5 — Port M bit 5 |
| Chân 68 | PM6 — Port M bit 6 |
| Chân 69 | PM7 — Port M bit 7 |
| Chân 70 | PS0 — Port S bit 0 / SPI0 SCK |
| Chân 71 | PS1 — Port S bit 1 / SPI0 MOSI |
| Chân 72 | PS2 — Port S bit 2 / SPI0 MISO |
| Chân 73 | PS3 — Port S bit 3 / SPI0 SS |
| Chân 74 | PS4 — Port S bit 4 / SCI0 TXD |
| Chân 75 | PS5 — Port S bit 5 / SCI0 RXD |
| Chân 76 | PS6 — Port S bit 6 |
| Chân 77 | PS7 — Port S bit 7 |
| Chân 78 | PT0 — Port T bit 0 / IOC0 channel 0 |
| Chân 79 | PT1 — Port T bit 1 / IOC0 channel 1 |
| Chân 80 | PT2 — Port T bit 2 / IOC0 channel 2 |
| Chân 81 | PT3 — Port T bit 3 / IOC0 channel 3 |
| Chân 82 | PT4 — Port T bit 4 / IOC0 channel 4 |
| Chân 83 | PT5 — Port T bit 5 / IOC0 channel 5 |
| Chân 84 | PT6 — Port T bit 6 / IOC0 channel 6 |
| Chân 85 | PT7 — Port T bit 7 / IOC0 channel 7 |
| Chân 86 | CAN0TX — CAN0 transmit output |
| Chân 87 | CAN0RX — CAN0 receive input |
| Chân 88 | TXD1 — SCI1 transmit output |
| Chân 89 | RXD1 — SCI1 receive input |
| Chân 90 | SCL0 — I²C0 clock line |
| Chân 91 | SDA0 — I²C0 data line |
| Chân 92 | EXTAL |
| Chân 93 | XTAL — Crystal driver input |
| Chân 94 | PLL_VDD — PLL supply voltage (filtered) |
| Chân 95 | PLL_VSS — PLL ground |
| Chân 96 | VDD2 — Digital supply 2 |
| Chân 97 | VSS2 — Digital ground 2 |
| Chân 98 | PP0 — Port P bit 0 / PWM channel 0 |
| Chân 99 | PP1 — Port P bit 1 / PWM channel 1 |
| Chân 100 | PP2 — Port P bit 2 / PWM channel 2 |
| Chân 101 | PP3 — Port P bit 3 / PWM channel 3 |
| Chân 102 | PP4 — Port P bit 4 / PWM channel 4 |
| Chân 103 | PP5 — Port P bit 5 / PWM channel 5 |
| Chân 104 | PP6 — Port P bit 6 / PWM channel 6 |
| Chân 105 | PP7 — Port P bit 7 / PWM channel 7 |
| Chân 106 | PB0 — Port B bit 0 |
| Chân 107 | PB1 — Port B bit 1 |
| Chân 108 | PB2 — Port B bit 2 |
| Chân 109 | PB3 — Port B bit 3 |
| Chân 110 | PB4 — Port B bit 4 |
| Chân 111 | PB5 — Port B bit 5 |
| Chân 112 | VSS3 — Digital ground 3 |
Ứng dụng tiêu biểu
S912XDG128F2VAL phù hợp cho 6 Áp dụngs: Automotive Body Control Module, Industrial CAN-Based Sensor Hub, HVAC Climate Control ECU, Instrument Cluster Driver, Battery Management Slave Module, Automotive Lighting Controller.
Automotive Body Control Module
The S912XDG128F2VAL is well-suited to automotive body control modules thanks to its 80 MHz HCS12X 16-bit core, 91 GPIO, AEC-Q100 grade, and -40°C to +105°C operating range. Body modules typically drive lighting, mirrors, wipers, and central locking while reading switch inputs and CAN messages, and the integrated CANbus interface plus PWM blocks simplify direct MOSFET driver and LED array control. With 128KB Flash and 2KB EEPROM, the MCU easily fits typical BCM firmware plus bootloader and diagnostics, while the S12XD interrupt structure and XGATE channel keep response times deterministic on door-lock and lamp-flash events.
Được đề xuất
Industrial CAN-Based Sensor Hub
For industrial sensor hubs, the S912XDG128F2VAL combines CANbus connectivity with SCI/SPI/I²C and 91 GPIO, allowing direct interfacing with multiple sensor front-ends and the fieldbus backbone. The 80 MHz HCS12X core processes typical CAN 2.0B traffic at 1 Mbps while still running housekeeping and diagnostics. Its 128KB Flash accommodates protocol stacks plus sensor calibration data, and the 2KB EEPROM is ideal for non-volatile calibration constants. The wide -40°C to +105°C temperature range suits factory-floor enclosures without additional thermal management.
Được đề xuất
HVAC Climate Control ECU
In automotive HVAC climate controllers, the S912XDG128F2VAL's PWM channels drive blower motors and blend-door actuators while its ADC channels read cabin temperature, ambient temperature, and humidity sensors over I²C or analog lines. The HCS12X core handles PID control loops at the 80 MHz bus speed without timing slips, keeping air-delivery smooth across transient conditions. AEC-Q100 qualification and 128KB Flash make room for vent-mode logic, firmware-update bootloaders, and self-test routines required in climate ECUs.
Được đề xuất
Instrument Cluster Driver
The S912XDG128F2VAL drives stepper-motor gauges and indicator LEDs inside analog/digital hybrid instrument clusters, with its PWM channels suitable for gauge pointer drive and backlight dimming. CANbus connectivity pulls vehicle speed, RPM, and fuel level from the powertrain CAN network. The 91 GPIO support indicator lamps, telltales, and illumination controls without external I/O expanders, and AEC-Q100 grade + -40°C to +105°C ensures reliable under-dash operation across climate extremes. 128KB Flash stores cluster graphics, diagnostic routines, and CAN J1939 stacks.
Được đề xuất
Battery Management Slave Module
The S912XDG128F2VAL is suited to lithium-ion battery management slave modules in 12V/48V mild-hybrid automotive packs, where its CANbus interface reports cell voltages and temperatures to a master BMS. The S12X core's deterministic interrupt structure supports precise cell-balancing timing, while the 128KB Flash and 2KB EEPROM store cell-lookup tables, lifetime counters, and SOH data. AEC-Q100 qualification plus the -40°C to +105°C range matches the automotive underhood environmental requirement when paired with external sense-amplifier front ends.
Được đề xuất
Automotive Lighting Controller
In exterior lighting controllers (headlamp leveling, adaptive driving beam, and LED DRL modules), the S912XDG128F2VAL's PWM channels drive LED drivers and bulb dimming circuits under precise control. CANbus connectivity supports OEM body-network integration with the central BCM, while 128KB Flash runs LED thermal-derating algorithms plus diagnostics and CAN stacks. The HCS12X instruction queue at 80 MHz allows handling of high-rate LED matrix scan loops without processor stall, and AEC-Q100 qualification plus -40°C to +105°C range matches headlamp environment requirements.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho S912XDG128F2VAL — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | S912XET256F2CALR | S912XDT256F1VAA | S912XES384J3VAL | S912XDT384J1MAG | S912XEG384AVAGR | S912XDP512VPVR2 |
|---|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 112-LQFP (20x20) | 112-LQFP | 112-LQFP | 112-LQFP | 112-LQFP | 112-LQFP | 112-LQFP |
| Core | HCS12X 16-bit | HCS12X 16-bit | HCS12X 16-bit | HCS12X 16-bit | HCS12X 16-bit | HCS12X 16-bit | HCS12X 16-bit |
| CPU Speed | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 50 MHz |
| Flash | 128 KB | 256 KB | 256 KB | 384 KB | 384 KB | 384 KB | 512 KB |
| EEPROM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 4 KB |
| Operating Temperature | -40°C to +105°C | -40°C to +125°C | -40°C to +105°C | -40°C to +105°C | -40°C to +105°C | -40°C to +105°C | -40°C to +125°C |
| Qualification | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 |
Bảo phân biệt quan trọng
- Family-wide pin compatibility with pin-compatible Flash upgrades (vsS912XDT256F1VAA)
- Standardized HCS12X core architecture (vsS912XEG384AVAGR)
- Lower memory cut on the same family - cost optimization (vsS912XDP512VPVR2)
Ghi chú thiết kế
Estimated: At ambient 85°C in a sealed automotive body module, the LQFP-112 (20x20) package dissipates roughly 0.6W at 80 MHz CPU with CAN + SPI active, giving a junction temperature around 110°C assuming theta_JA of ~45°C/W on a 4-layer FR4 PCB with 4 sq inch copper pour. For underhood environments above +105°C, derate CPU speed or move to S12XH/S12XZ devices rated for +125°C / +150°C. Provide a top-layer copper pour tied to multiple VDD/VSS pins to keep ground impedance low.
Route the BKGD and RESET lines away from switching noise sources and add 10 kΩ pull-ups to BKGD and RESET for clean power-on behavior per the S12XD reference manual. Place the bypass network (100 nF ceramic + 4.7 µF bulk) within 5 mm of the VDD1/VDD2/VDDA pins, and use a separate analog ground island for the ADC reference. The PLL_VDD pin requires a dedicated LC filter (typ. 10 µH + 100 nF) to prevent jitter on the internal phase-locked loop. Keep XIRQ and MODC signals accessible for in-circuit BDM programming.
Do not leave the TEST pin floating - it must be tied directly to VSS for normal operation, per the S12XD datasheet. The MODC pin should be pulled high through a resistor to enter single-chip normal expanded mode on power-up. When migrating from HCS12 (non-X) code, ensure stack management matches HCS12X because the XGATE co-processor and wider instruction queue change interrupt latency behavior. Always verify CAN bus termination (120 Ω at each end) when adding this part to a multi-node CAN network.
Thông tin tuân thủ
AEC-Q100 qualified per distributor listing ('Automotive Qualified'). RoHS compliant per modern LQFP-112 lead-free packaging. Operating temperature -40°C to +105°C confirms automotive grade per NXP S12XD family specification.
