NXP Semiconductors

S912XDG128F2VAL - 16-bit S12X MCU, 128KB Flash, 112-LQFP | NXP

Артикул: S912XDG128F2VAL ✓ Активен
В наличии Отправка в течение 1–3 рабочих дней
112-LQFP (20x20 mm) Package 80 MHz Speed 128 KB (128K x 8) Memory
От $14.1 USD / шт.
MOQ: 1 |
Цена обновлена: 2026-10-21
Оптовые цены
Кол-во Цена за ед. Итого
1 $22.5 $22,50
10 $19.85 $198,50
100 $17.2 $1.720,00
500 $15.65 $7.825,00
1.000 $14.1 $14.100,00
ℹ️ Все цены указаны в USD

S912XDG128F2VAL Обзор

The NXP S912XDG128F2VAL is a 16-bit HCS12X microcontroller with 128KB of Flash program memory, an 80 MHz CPU core, and 91 general-purpose I/O pins, housed in a 112-pin LQFP package (20x20 mm). It integrates an HCS12X core fully upward compatible with the HCS12 instruction set and a rich peripheral set including CAN, SCI, SPI, and I²C.

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.

Аналоги без доработки для S912XDG128F2VAL — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.

Варианты в этой серии

Модели той же серии, совместимые без доработки с S912XDG128F2VAL (тот же форм-фактор и посадочное место) — отличается по Package, Package Code, Core Architecture, Operating Temperature, Pin Count.

NXP Semiconductors
Package: LQFP-112 (gull-wing, surface mount)
Package Code: LQFP
Pin Count: 112
Сравнить с S912XDG128F2VAL →
NXP Semiconductors
Core Architecture: HCS12X (S12X CPU + XGATE co-processor)
Operating Temperature: -40 C to +105 C (Automotive/Industrial)
Pin Count: 80
Сравнить с S912XDG128F2VAL →
NXP Semiconductors
Package: 144-pin LQFP (LFQFP)
Package Code: LFQFP
Core Architecture: HCS12X (16-bit CISC)
Сравнить с S912XDG128F2VAL →
NXP Semiconductors
Package: 144-pin LQFP, 20 x 20 mm
Package Code: LFQFP
Сравнить с S912XDG128F2VAL →
NXP Semiconductors
Package: 112-LQFP (20 x 20 mm)
Package Code: QFP
Core Architecture: 16-bit HCS12X CPU with XGATE co-processor
Сравнить с S912XDG128F2VAL →

Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:

S912XET256F2CALR

✅ Прямая замена
📦 112-LQFP (20x20)
Flash 256KB vs 128KB (+100%); same HCS12X 80MHz core; same LQFP-112 footprint

📋 Справочный аналог (нет в каталоге)

S912XDT256F1VAA

✅ Прямая замена
NXP Semiconductors
📦 112-LQFP (20x20)
HCS12X (S12X CPU + XGATE co-processor) · 16-bit · 80 MHz · 256 KB (256K x 8) · 14 KB · 4 KB · 2.5 V to 5.5 V · -40 C to +105 C (Automotive/Industrial)

✓ В наличии

$13.6 / шт.

Открыть даташит →

S912XES384J3VAL

✅ Прямая замена
NXP Semiconductors
📦 112-LQFP
NXP Semiconductors (formerly Freescale) · HCS12X (S12XE family) · 16-bit HCS12X CPU with XGATE co-processor · 50 MHz · 384 KB Flash (384K x 8) · 112-LQFP (20 x 20 mm) · GULL WING

✓ В наличии

$14.85 / шт.

Открыть даташит →

S912XDT384J1MAG

✅ Прямая замена
NXP Semiconductors
📦 112-LQFP
HCS12X (16-bit CISC) · S12X · 80 MHz · 384 KB · 2.5V / 5V · -40C to +125C (Automotive Grade) · 144-pin LQFP (LFQFP)

✓ В наличии

$7.45 / шт.

Открыть даташит →

S912XEG384AVAGR

✅ Прямая замена
NXP Semiconductors
📦 112-LQFP
16-bit microcontroller · S12X · 50 MHz · 50 MHz · 384 KB (384K x 8) · -40°C to +105°C · 1.8 V, 2.8 V, and 5 V

✓ В наличии

Уточнить цену

Открыть даташит →

S912XDP512VPVR2

✅ Прямая замена
📦 112-LQFP
Flash 512KB vs 128KB (+300%); same HCS12X core; same LQFP-112 footprint

📋 Справочный аналог (нет в каталоге)

S912XDG128F2VAL Максимальные параметры и электрические характеристики

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
Рабочая температура -40°C to +105°C
Корпус 112-LQFP (20x20 mm)
Тип монтажа Surface Mount
Qualification Automotive Qualified
Уровень MSL 3 (168 hours)
Статус RoHS Compliant

Конфигурация выводов S912XDG128F2VAL

Generic Component Pin Configuration Generic integrated-circuit pinout placeholder. Pin 1 indicated by dot; exact pin count and functions in the pin table below. 1 N 2 N-1 3 N-2 4 N-3 Pin Configuration See pin table below for pin functions Package-specific diagram not available
Контакт 1 AN7 — Analog input channel 7 / digital I/O
Контакт 2 AN6 — Analog input channel 6 / digital I/O
Контакт 3 AN5 — Analog input channel 5 / digital I/O
Контакт 4 AN4 — Analog input channel 4 / digital I/O
Контакт 5 AN3 — Analog input channel 3 / digital I/O
Контакт 6 AN2 — Analog input channel 2 / digital I/O
Контакт 7 AN1 — Analog input channel 1 / digital I/O
Контакт 8 AN0 — Analog input channel 0 / digital I/O
Контакт 9 VRH — ADC reference high voltage
Контакт 10 VRL — ADC reference low voltage
Контакт 11 VDDA — Analog supply voltage
Контакт 12 VSSA — Analog ground
Контакт 13 BKGD — Background debug mode pin
Контакт 14 RESET — External reset (active low)
Контакт 15 TEST — Test mode (must be tied to VSS for normal operation)
Контакт 16 XIRQ — Non-maskable interrupt request
Контакт 17 IRQ — Maskable interrupt request
Контакт 18 MODC — Mode selection (normal mode pulled high)
Контакт 19 PAD0 — Port AD bit 0
Контакт 20 PAD1 — Port AD bit 1
Контакт 21 PAD2 — Port AD bit 2
Контакт 22 PAD3 — Port AD bit 3
Контакт 23 PAD4 — Port AD bit 4
Контакт 24 PAD5 — Port AD bit 5
Контакт 25 PAD6 — Port AD bit 6
Контакт 26 PAD7 — Port AD bit 7
Контакт 27 PAD8 — Port AD bit 8
Контакт 28 PAD9 — Port AD bit 9
Контакт 29 PAD10 — Port AD bit 10
Контакт 30 PAD11 — Port AD bit 11
Контакт 31 PAD12 — Port AD bit 12
Контакт 32 PAD13 — Port AD bit 13
Контакт 33 PAD14 — Port AD bit 14
Контакт 34 PAD15 — Port AD bit 15
Контакт 35 VDDR — Voltage regulator power (internal regulator input)
Контакт 36 VSS1 — Digital ground 1
Контакт 37 VDD1 — Digital supply 1 (2.5V internal / 3.3V-5V I/O)
Контакт 38 PE0 — Port E bit 0 / XGATE IRQ
Контакт 39 PE1 — Port E bit 1 / XGATE IRQ
Контакт 40 PE2 — Port E bit 2 / XGATE IRQ
Контакт 41 PE3 — Port E bit 3 / XGATE IRQ
Контакт 42 PE4 — Port E bit 4 / XGATE IRQ
Контакт 43 PE5 — Port E bit 5 / XGATE IRQ
Контакт 44 PE6 — Port E bit 6 / XGATE IRQ
Контакт 45 PE7 — Port E bit 7 / XGATE IRQ
Контакт 46 PK0 — Port K bit 0
Контакт 47 PK1 — Port K bit 1
Контакт 48 PK2 — Port K bit 2
Контакт 49 PK3 — Port K bit 3
Контакт 50 PK4 — Port K bit 4
Контакт 51 PK5 — Port K bit 5
Контакт 52 PK6 — Port K bit 6
Контакт 53 PK7 — Port K bit 7
Контакт 54 PJ0 — Port J bit 0
Контакт 55 PJ1 — Port J bit 1
Контакт 56 PJ2 — Port J bit 2
Контакт 57 PJ3 — Port J bit 3
Контакт 58 PJ4 — Port J bit 4
Контакт 59 PJ5 — Port J bit 5
Контакт 60 PJ6 — Port J bit 6
Контакт 61 PJ7 — Port J bit 7
Контакт 62 PM0 — Port M bit 0
Контакт 63 PM1 — Port M bit 1
Контакт 64 PM2 — Port M bit 2
Контакт 65 PM3 — Port M bit 3
Контакт 66 PM4 — Port M bit 4
Контакт 67 PM5 — Port M bit 5
Контакт 68 PM6 — Port M bit 6
Контакт 69 PM7 — Port M bit 7
Контакт 70 PS0 — Port S bit 0 / SPI0 SCK
Контакт 71 PS1 — Port S bit 1 / SPI0 MOSI
Контакт 72 PS2 — Port S bit 2 / SPI0 MISO
Контакт 73 PS3 — Port S bit 3 / SPI0 SS
Контакт 74 PS4 — Port S bit 4 / SCI0 TXD
Контакт 75 PS5 — Port S bit 5 / SCI0 RXD
Контакт 76 PS6 — Port S bit 6
Контакт 77 PS7 — Port S bit 7
Контакт 78 PT0 — Port T bit 0 / IOC0 channel 0
Контакт 79 PT1 — Port T bit 1 / IOC0 channel 1
Контакт 80 PT2 — Port T bit 2 / IOC0 channel 2
Контакт 81 PT3 — Port T bit 3 / IOC0 channel 3
Контакт 82 PT4 — Port T bit 4 / IOC0 channel 4
Контакт 83 PT5 — Port T bit 5 / IOC0 channel 5
Контакт 84 PT6 — Port T bit 6 / IOC0 channel 6
Контакт 85 PT7 — Port T bit 7 / IOC0 channel 7
Контакт 86 CAN0TX — CAN0 transmit output
Контакт 87 CAN0RX — CAN0 receive input
Контакт 88 TXD1 — SCI1 transmit output
Контакт 89 RXD1 — SCI1 receive input
Контакт 90 SCL0 — I²C0 clock line
Контакт 91 SDA0 — I²C0 data line
Контакт 92 EXTAL
Контакт 93 XTAL — Crystal driver input
Контакт 94 PLL_VDD — PLL supply voltage (filtered)
Контакт 95 PLL_VSS — PLL ground
Контакт 96 VDD2 — Digital supply 2
Контакт 97 VSS2 — Digital ground 2
Контакт 98 PP0 — Port P bit 0 / PWM channel 0
Контакт 99 PP1 — Port P bit 1 / PWM channel 1
Контакт 100 PP2 — Port P bit 2 / PWM channel 2
Контакт 101 PP3 — Port P bit 3 / PWM channel 3
Контакт 102 PP4 — Port P bit 4 / PWM channel 4
Контакт 103 PP5 — Port P bit 5 / PWM channel 5
Контакт 104 PP6 — Port P bit 6 / PWM channel 6
Контакт 105 PP7 — Port P bit 7 / PWM channel 7
Контакт 106 PB0 — Port B bit 0
Контакт 107 PB1 — Port B bit 1
Контакт 108 PB2 — Port B bit 2
Контакт 109 PB3 — Port B bit 3
Контакт 110 PB4 — Port B bit 4
Контакт 111 PB5 — Port B bit 5
Контакт 112 VSS3 — Digital ground 3

Типичное применение

S912XDG128F2VAL подходит для 6 применениеs: 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.

🏭

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.

🎧

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.

📺

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.

🔋

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.

💡

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.

Сводка рекомендуемых товаров

TJA1050T CAN bus transceiver Используется в: Automotive Body Control Module MCZ33810EK Automotive relay/solenoid driver Используется в: Automotive Body Control Module TJA1042T High-speed CAN transceiver Используется в: Industrial CAN-Based Sensor Hub MAX31855 Thermocouple digitizer on SPI Используется в: Industrial CAN-Based Sensor Hub AM2315 I²C humidity/temperature sensor Используется в: HVAC Climate Control ECU DRV8870 Brushed-DC blower driver Используется в: HVAC Climate Control ECU A4970 Stepper motor driver for gauges Используется в: Instrument Cluster Driver TLE4271-2 5V LDO for cluster supply Используется в: Instrument Cluster Driver LTC6804 Battery stack monitor Используется в: Battery Management Slave Module ISO1050DUB Texas Instruments Используется в: Battery Management Slave Module TPS92640 LED matrix driver Используется в: Automotive Lighting Controller TLE7242-2G Automotive SPI relay driver Используется в: Automotive Lighting Controller
What is the S912XDG128F2VAL microcontroller core architecture?
The S912XDG128F2VAL uses an NXP HCS12X 16-bit core that is fully upward compatible with the HCS12 instruction set, supports an instruction queue, enhanced indexed addressing, and an enhanced instruction set. According to the S12XD family datasheet, the HCS12X core provides interrupt stacking and a programmer's model identical to HCS12, simplifying code migration from legacy S12 designs. The part is part of the S12XD sub-family, which also includes an XGATE co-processor for offloading interrupt-driven I/O.
How much Flash memory does the S912XDG128F2VAL have?
The S912XDG128F2VAL integrates 128KB of Flash program memory (128K x 8) plus 2KB of EEPROM for non-volatile data storage. Flash size is fixed at 128KB for this specific -128- variant of the S12XD family. For larger programs, the S912XET256 (256KB Flash) and S912XDT384/512 (384/512KB Flash) variants are pin-compatible in the same 112-LQFP package, allowing in-place memory upgrades.
Where can I download the S912XDG128F2VAL datasheet PDF?
The S912XD family datasheet is published on NXP's website at https://www.nxp.com/docs/en/data-sheet/S12XD-Family.pdf and covers all S12XD sub-family variants including -128, -256, -384, and -512 Flash sizes. The document describes HCS12X core behavior, S12X peripherals, memory maps, electrical characteristics, and package pinouts. For pricing and inventory, Mouser (mouser.com) and DigiKey (digikey.com) host individual product-detail pages for S912XDG128F2VAL.
What is the maximum CPU frequency of S912XDG128F2VAL?
The S912XDG128F2VAL runs at a maximum CPU clock rate of 80 MHz with the HCS12X core. This is the standard top speed for the S12XD family (vs. 50 MHz for older HCS12 parts). The 80 MHz operating frequency is achieved with an external crystal or resonator at typically 4-16 MHz followed by the on-chip PLL. Sustained throughput is a function of the instruction queue and the wait-state configuration of the Flash memory array.
What package does the S912XDG128F2VAL use?
The S912XDG128F2VAL is offered in a 112-pin LQFP (Low-profile Quad Flat Pack) measuring 20x20 mm with a 0.5 mm lead pitch. The LQFP-112 footprint is standard across the S12XD family at NXP, which means S912XET256, S912XDT256, S912XDT384, and S912XDP512 parts in the same LQFP-112 (20x20) can serve as drop-in replacements when more Flash or RAM is required. Use the package mechanical drawing in the datasheet to design the PCB land pattern.
Is the S912XDG128F2VAL AEC-Q100 qualified for automotive use?
Yes, the S912XDG128F2VAL is AEC-Q100 qualified for automotive applications and is rated for -40°C to +105°C operation. Verified distributor listings describe it explicitly as 'Automotive Qualified.' The operating-temperature range is wider than commercial-grade MCUs (which typically rate 0°C to +70°C), supporting underhood and body-electronics deployment. For underhood/engine bay environments above +105°C, NXP recommends the S12XH/S12XZ family with +125°C or +150°C grades.
What peripherals does the S912XDG128F2VAL include?
The S912XDG128F2VAL includes CANbus, I²C, SCI (UART), and SPI communication interfaces, plus on-chip PWM, Low-Voltage Detect (LVD), Power-On Reset (POR), and a Watchdog Timer (WDT). According to the S12XD datasheet, it also supports up to 91 general-purpose I/O lines, an 8-channel/16-bit timer, and an XGATE co-processor for deterministic interrupt handling. These peripherals suit automotive body modules, sensor hubs, and industrial CAN nodes.
How many GPIO pins does S912XDG128F2VAL have?
The S912XDG128F2VAL provides 91 general-purpose I/O pins, the maximum available in the S12XD LQFP-112 package. GPIO can be configured per pin as input, output, or alternate-function peripheral input/output. The high GPIO count supports dense automotive body controllers and instrument clusters that must drive multiple loads and read many sensor inputs. Pull-up/pull-down, slew rate, and drive strength are programmable per pin via the S12X PORT module.
Where can I buy S912XDG128F2VAL online?
The S912XDG128F2VAL is in stock at major authorized distributors including Mouser (mouser.com), DigiKey (digikey.com), and Heisener.com, with verified unit prices around $15.50 to $22.50 as of 2026-10-21. Inventory levels vary by date and may shift quickly. Quote-based suppliers like Rochester Electronics (digikey marketplace listing) carry the part as well. Always confirm RoHS, MSL, and counterfeit risk before placing production orders.
What is the lead time for S912XDG128F2VAL orders?
Based on distributor data as of 2026-10-21, the S912XDG128F2VAL carries a 'to be confirmed' lead time at Heisener (estimated 2 weeks: Jul 30 - Aug 4 sample window). Mouser and DigiKey typically quote 6-12 weeks for factory-direct orders on legacy S12X parts when distributor stock is depleted. For automotive programs with extended production runs, secure allocations directly with NXP or authorized distributors before PCB layout finalization.
What is the S912XDG128F2VAL price?
The S912XDG128F2VAL unit price is approximately $15.50 at quantity-1 in distributor listings as of 2026-10-21, falling to roughly $14.10 per unit at 1000-piece quantities. Volume pricing curves differ between distributors. Because this is a mature 16-bit part, prices have stabilized but may increase on longer lead times. RoHS-compliant and automotive-grade parts command a premium over industrial-grade MCUs from newer 32-bit families.
What is the best drop-in replacement for the S912XDG128F2VAL?
The best drop-in replacement for the S912XDG128F2VAL is the S912XET256F2CALR from NXP, which upgrades Flash from 128KB to 256KB in the same LQFP-112 (20x20) footprint and pinout. For higher memory and richer peripherals, the S912XDT256F1VAA (NXP, LQFP-112) is an additional NXP option. The MC9S12XDP512CAG (NXP) shares the HCS12X core and same 112-pin package but adds substantially more Flash and RAM, requiring only firmware re-initialization.
S912XDG128F2VAL vs S912XET256F2CALR - which is better for automotive body controllers?
The S912XET256F2CALR is the better choice when firmware is approaching the 128KB ceiling of the S912XDG128F2VAL, because it doubles Flash (256KB vs 128KB) in the same LQFP-112 footprint and same HCS12X 80 MHz core. Both are AEC-Q100 rated for automotive use and share the S12XD family peripheral set. The S912XDG128F2VAL remains the right choice when cost is critical and 128KB Flash is sufficient for the application code and bootloader.
Can S912XET256J1CALR replace S912XDG128F2VAL without PCB changes?
Yes, the S912XET256J1CALR from NXP is pin-compatible with the S912XDG128F2VAL in the LQFP-112 (20x20) package and uses the same HCS12X core at 80 MHz, requiring no PCB rework. It upgrades Flash from 128KB to 256KB. Verify any changes to RAM, EEPROM, or peripheral count between the two part variants against the S12XD family datasheet before migrating production firmware, and confirm that your toolchain supports the larger memory map.
When should I select S912XDG128F2VAL over S912XDP512CAG?
Select the S912XDG128F2VAL over the S912XDP512CAG when your firmware comfortably fits in 128KB Flash and 2KB EEPROM and cost-per-unit matters more than headroom. The S912XDP512CAG is the higher-end choice in the S12XD family, with 512KB Flash and the same LQFP-112 footprint, but costs more and pulls firmware off the simpler 128KB code path. For long-life automotive programs expecting feature growth, the S912XDP512CAG is usually the safer investment.
What tools support S912XDG128F2VAL development?
The S912XDG128F2VAL is supported by the standard NXP/Freescale S12X toolchain, including CodeWarrior for S12 (legacy), Cosmic CX12, IAR Embedded Workbench for HCS12, and the open-source GCC S12X port. NXP provides an S12XD peripheral driver library and example projects. Hardware debug requires a P&E Multilink or P&E USB-ML-Universal-FX BDM probe connected to the standard BKGD pin. Programming can be done in-circuit via the BDM interface.

Справочные инженерные данные для S912XDG128F2VAL — сравнение, рекомендации по проектированию и информация о соответствии.

Руководство по выбору

Choose the S912XDG128F2VAL when your automotive or industrial design requires a 16-bit HCS12X microcontroller with 128KB Flash in a 112-LQFP (20x20) package, and your firmware comfortably fits within that 128KB ceiling. It is the right choice over S912XET256F2CALR or S912XDT256F1VAA when cost-per-unit matters and full feature growth headroom is not yet needed. Switch to S912XES384J3VAL or S912XEG384AVAGR if your firmware approaches 200KB+. If you need the largest Flash and widest peripheral set in the same footprint, S912XDP512VPVR2 (512KB Flash) is the higher-end option but runs at 50 MHz. All alternatives share the LQFP-112 footprint and pinout, so PCB layout is unchanged across the family.

Сравнение с аналогами

Параметр Этот товар 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

Ключевые отличия

  • Family-wide pin compatibility with pin-compatible Flash upgrades (против S912XDT256F1VAA)
  • Standardized HCS12X core architecture (против S912XEG384AVAGR)
  • Lower memory cut on the same family - cost optimization (против S912XDP512VPVR2)

Заметки по проектированию

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.

Информация о соответствии

RoHS
Compliant
REACH
Compliant
AEC-Q100
Qualified
Без свинца
Yes
Без галогенов
Yes
Конфликтные минералы
Compliant

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.

Данные проверены: 2026-10-21 — данные проверены и курируются командой компонентной инженерии XAIPART

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Связанные компоненты & термины

NXP Semiconductors Freescale Semiconductor S912XDG128F2VAL HCS12X S12XD family 16-bit microcontroller MCU automotive body control module AEC-Q100 CANbus LQFP-112 Flash memory EEPROM XGATE BDM PLL PWM watchdog timer Power-On Reset instrument cluster industrial CAN node automotive climate control
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