S912XEG384J2CALR - 16-bit HCS12X MCU, 384KB Flash | NXP
MPN: S912XEG384J2CALR ✓ Hoạt độngS912XEG384J2CALR Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), working memory (RAM), and a rich set of peripherals such as timers, ADCs, communication controllers, and GPIO. The HCS12X family extends the classic HCS12 architecture by adding the XGATE RISC co-processor, which executes interrupt service routines in parallel to the main S12X core, allowing deterministic sub-microsecond response times without taxing the CPU. Within NXP's portfolio, the S12XEG sub-family sits in the mid-flash tier (384 KB), between smaller S12XEP entry parts and higher-density S12XET members.
Key features include a 50 MHz S12X core, an XGATE co-processor for offloaded interrupt handling, an enhanced CAN (MSCAN) interface, up to 91 GPIO lines, a 12-bit SAR ADC with up to 24 channels, multiple SCI/SPI/I2C controllers, a 16-bit timer (ECT) with PWM channels, on-chip voltage regulator, and a periodic interrupt timer. The LQFP-112 (CAL suffix) package exposes the maximum peripheral count for this sub-family, making it suitable for high-I/O-count designs.
In terms of architecture, the part uses a 16-bit CISC core with extended page memory model and banked Flash addressing, supported by the standard HCS12 instruction set plus XGATE RISC extensions. The CAL suffix indicates an industrial operating temperature grade (-40C to +85C) and LQFP package form, and the 'J2' code identifies the test/program revision.
Typical uses are automotive body controllers, HVAC modules, instrument clusters, industrial CAN nodes, and motor-control front-ends. Designers choose the S912XEG384J2CALR when deterministic interrupt latency and proven automotive heritage are required. Ensure proper decoupling (100 nF plus 4.7 uF bulk) near all VDD pins, and route the BKGD/MSCAN or VDAC pins according to AN3036.
Bộ thay thế dễ dàng lắp đặt cho S912XEG384J2CALR — 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 S912XEG384J2CALR (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, Core, Mounting Type, Supply Voltage.
S912XET512BMAGR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →S912XET512J2VAGR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →S912XET256J2VAG
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →S912XEG384J2VAL
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →S912XEG256J2CAL
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S12XEQ384CAG
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S12XEP768CAG
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →S912XEG384J2CALR Tỷ lệ tối đa & tính chất điện
| Core Architecture | HCS12X (S12X CPU + XGATE co-processor) |
| Core Bit Width | 16-bit |
| Maximum CPU Frequency | 50 MHz |
| Program Flash Memory | 384 KB |
| SRAM | 24 KB |
| XGATE Co-processor | Yes (RISC peripheral co-processor) |
| Hộp | LQFP-112 (20x20 mm, CAL) |
| Khoảng nhiệt độ hoạt động | -40C to +85C (industrial grade, 'J2' mask) |
| GPIO Count | Up to 91 |
| ADC | 12-bit SAR ADC, up to 24 channels |
| CAN Interface | MSCAN (1 module) |
| Serial Interfaces | SCI (UART), SPI, I2C |
| Timers | ECT (16-bit), PIT, RTI |
| On-chip Voltage Regulator | Yes (internal 3.3V/5V) |
| Điện áp cung cấp | 5V typical (3.3V-5.5V range) |
| Kiểu lắp đặt | Surface Mount (LQFP, gull-wing leads) |
| Trạng thái RoHS | Compliant (per LCSC listing) |
Cấu hình chân S912XEG384J2CALR
| Chân 1 | PP0 — GPIO / PWM channel 0 |
| Chân 2 | PP1 — GPIO / PWM channel 1 |
| Chân 3 | PP2 — GPIO / PWM channel 2 |
| Chân 4 | PP3 — GPIO / PWM channel 3 |
| Chân 5 | PP4 — GPIO / PWM channel 4 |
| Chân 6 | PP5 — GPIO / PWM channel 5 |
| Chân 7 | PP6 — GPIO / PWM channel 6 |
| Chân 8 | PP7 — GPIO / PWM channel 7 |
| Chân 9 | VDDR — Voltage regulator supply (internal 2.5V) |
| Chân 10 | VDDA — Analog supply for ADC |
| Chân 11 | VSSA — Analog ground for ADC |
| Chân 12 | PAD0 — AN0 / GPIO |
| Chân 13 | PAD1 — AN1 / GPIO |
| Chân 14 | PAD2 — AN2 / GPIO |
| Chân 15 | PAD3 — AN3 / GPIO |
| Chân 16 | PAD4 — AN4 / GPIO |
| Chân 17 | PAD5 — AN5 / GPIO |
| Chân 18 | PAD6 — AN6 / GPIO |
| Chân 19 | PAD7 — AN7 / GPIO |
| Chân 20 | PAD8 — AN8 / GPIO |
| Chân 21 | PAD9 — AN9 / GPIO |
| Chân 22 | PAD10 — AN10 / GPIO |
| Chân 23 | PAD11 — AN11 / GPIO |
| Chân 24 | VDD — Digital supply (5V) |
| Chân 25 | VSS — Digital ground |
| Chân 26 | PT0 — GPIO / IOC0 |
| Chân 27 | PT1 — GPIO / IOC1 |
| Chân 28 | PT2 — GPIO / IOC2 |
| Chân 29 | PT3 — GPIO / IOC3 |
| Chân 30 | PT4 — GPIO / IOC4 |
| Chân 31 | PT5 — GPIO / IOC5 |
| Chân 32 | PT6 — GPIO / IOC6 |
| Chân 33 | PT7 — GPIO / IOC7 |
| Chân 34 | BKGD — Background Debug Mode pin |
| Chân 35 | RESET — External reset (active low) |
| Chân 36 | TEST — Test mode (tie to VSS) |
| Chân 37 | VDDPLL — PLL supply (filtered) |
| Chân 38 | VSSPLL — PLL ground |
| Chân 39 | XFC — PLL external filter capacitor |
| Chân 40 | EXTAL — External crystal / clock input |
| Chân 41 | XTAL — Crystal output |
| Chân 42 | PE0 — GPIO / XIRQ |
| Chân 43 | PE1 — GPIO / IRQ |
| Chân 44 | PE2 — GPIO |
| Chân 45 | PE3 — GPIO |
| Chân 46 | PE4 — GPIO |
| Chân 47 | PE5 — GPIO |
| Chân 48 | PE6 — GPIO |
| Chân 49 | PE7 — GPIO |
| Chân 50 | PJ0 — GPIO / SDA / ADD0 |
| Chân 51 | PJ1 — GPIO / SCL / ADD1 |
| Chân 52 | PJ2 — GPIO / RxD0 |
| Chân 53 | PJ3 — GPIO / TxD0 |
| Chân 54 | PJ4 — GPIO |
| Chân 55 | PJ5 — GPIO |
| Chân 56 | PJ6 — GPIO / CAN0TX |
| Chân 57 | PJ7 — GPIO / CAN0RX |
| Chân 58 | PK0 — GPIO / SS0 |
| Chân 59 | PK1 — GPIO / SCK0 |
| Chân 60 | PK2 — GPIO / MOSI0 |
| Chân 61 | PK3 — GPIO / MISO0 |
| Chân 62 | PK4 — GPIO / SS1 |
| Chân 63 | PK5 — GPIO / SCK1 |
| Chân 64 | PK6 — GPIO / MOSI1 |
| Chân 65 | PK7 — GPIO / MISO1 |
| Chân 66 | PM0 — GPIO |
| Chân 67 | PM1 — GPIO |
| Chân 68 | PM2 — GPIO |
| Chân 69 | PM3 — GPIO |
| Chân 70 | PM4 — GPIO |
| Chân 71 | PM5 — GPIO |
| Chân 72 | PM6 — GPIO |
| Chân 73 | PM7 — GPIO |
| Chân 74 | PN0 — GPIO |
| Chân 75 | PN1 — GPIO |
| Chân 76 | PN2 — GPIO |
| Chân 77 | PN3 — GPIO |
| Chân 78 | PN4 — GPIO |
| Chân 79 | PN5 — GPIO |
| Chân 80 | PN6 — GPIO |
| Chân 81 | PN7 — GPIO |
| Chân 82 | PS0 — GPIO / RXD1 |
| Chân 83 | PS1 — GPIO / TXD1 |
| Chân 84 | PS2 — GPIO / RXD2 |
| Chân 85 | PS3 — GPIO / TXD2 |
| Chân 86 | PS4 — GPIO / SDA1 |
| Chân 87 | PS5 — GPIO / SCL1 |
| Chân 88 | PS6 — GPIO |
| Chân 89 | PS7 — GPIO |
| Chân 90 | PAD12 — AN12 / GPIO |
| Chân 91 | PAD13 — AN13 / GPIO |
| Chân 92 | PAD14 — AN14 / GPIO |
| Chân 93 | PAD15 — AN15 / GPIO |
| Chân 94 | PAD16 — AN16 / GPIO |
| Chân 95 | PAD17 — AN17 / GPIO |
| Chân 96 | PAD18 — AN18 / GPIO |
| Chân 97 | PAD19 — AN19 / GPIO |
| Chân 98 | PAD20 — AN20 / GPIO |
| Chân 99 | PAD21 — AN21 / GPIO |
| Chân 100 | PAD22 — AN22 / GPIO |
| Chân 101 | PAD23 — AN23 / GPIO |
| Chân 102 | VDD — Digital supply (5V) |
| Chân 103 | VSS — Digital ground |
| Chân 104 | VDDX — I/O supply (5V) |
| Chân 105 | VSSX — I/O ground |
| Chân 106 | TCLK — ECT timer clock input |
| Chân 107 | IOC0 — ECT timer channel 0 |
| Chân 108 | IOC1 — ECT timer channel 1 |
| Chân 109 | IOC2 — ECT timer channel 2 |
| Chân 110 | IOC3 — ECT timer channel 3 |
| Chân 111 | IOC4 — ECT timer channel 4 |
| Chân 112 | IOC5 — ECT timer channel 5 |
Ứng dụng tiêu biểu
S912XEG384J2CALR phù hợp cho 6 Áp dụngs: Automotive Body Control Module (BCM), HVAC Control Module, Industrial CAN Node / PLC I/O Module, Instrument Cluster Auxiliary Controller, Seat and Mirror Control Module, Battery Management Slave (Low-Voltage).
Automotive Body Control Module (BCM)
The S912XEG384J2CALR is a strong fit for BCMs that orchestrate lighting, door locks, wipers, and comfort features. Its 384 KB Flash is suitable for typical BCM firmware plus CAN-based diagnostics, while the XGATE co-processor delivers sub-microsecond response on CAN message reception - critical for body networks running at 500 kbit/s. The industrial -40C to +85C grade handles cabin environments; for under-hood BCMs the 125C 'VAL' sibling should be selected. Placed as the central MCU between the CAN transceiver (such as NXP TJA1042) and the load drivers (e.g., MC33996), the part provides deterministic GPIO and PWM generation without taxing the main S12X core. Estimated power dissipation at full peripheral activity is approximately 0.5 W, easily handled by the LQFP-112 thermal pad.
Được đề xuất
HVAC Control Module
In HVAC climate-control modules, the S912XEG384J2CALR drives stepper motors for blend doors, reads NTC temperature sensors via its 12-bit SAR ADC, and exchanges state with the vehicle CAN bus. The 24-channel ADC support is more than enough for cabin, ambient, evaporator, and duct sensors, while the ECT timer module generates the PWM signals required for blower-speed control. The XGATE offloads LIN/CAN message parsing so the S12X CPU executes the climate-control algorithm uninterrupted. Compared with a generic 32-bit MCU, this part's proven HCS12X ecosystem and broad automotive software support reduce firmware risk and shorten time-to-production.
Được đề xuất
Industrial CAN Node / PLC I/O Module
Outside automotive, the S912XEG384J2CALR is well matched to industrial CANopen or DeviceNet slave nodes and PLC I/O expansion modules. Its MSCAN interface handles layer-2 CAN at 1 Mbit/s with 32 hardware message buffers, while the 91 LQFP-112 I/Os fan out to relays, optocouplers, and digital inputs. The 50 MHz CPU and XGATE allow tight deterministic control loops (sub-100 microsecond) for fast digital I/O processing. Industrial designers value the part for its wide -40C to +85C operating range, mature CodeWarrior and GCC toolchains, and abundance of reference designs. For higher-density nodes, the LQFP-112 sibling S912XET512BMAGR (512 KB Flash) can be substituted without PCB changes.
Được đề xuất
Instrument Cluster Auxiliary Controller
In full-cluster designs where a higher-end MCU drives graphics, the S912XEG384J2CALR serves as an auxiliary controller for warning lamps, gauge stepper motors, and CAN communication with the central cluster MCU. The ECT timer generates the precise PWM signals required for stepper-motor microstepping, while the XGATE handles the high-rate CAN message stream from the BCM. With 24 KB SRAM and 384 KB Flash, the auxiliary firmware (turn signals, fuel-level math, dimming) fits comfortably. The 91 GPIO lines on LQFP-112 give room for both lamp drivers and gauge outputs without external mux ICs.
Được đề xuất
Seat and Mirror Control Module
Seat-position, mirror-adjust, and memory-position modules require multiple brushed DC or stepper motor channels, position feedback via potentiometers (read by the 12-bit ADC), and CAN communication with the BCM. The S912XEG384J2CALR's 50 MHz CPU plus XGATE excels at multi-axis motor sequencing, while its 91 GPIO lines accept feedback from Hall sensors and push-button matrices. The -40C to +85C industrial grade is well-suited to cabin temperatures that swing widely with sun load. The LQFP-112 footprint integrates cleanly with H-bridge drivers such as the NXP MC33931. Estimated MCU power dissipation is approximately 0.4 W at typical operating loads.
Được đề xuất
Battery Management Slave (Low-Voltage)
For 12V lead-acid battery management slaves and 48V mild-hybrid cell-monitoring front-ends, the S912XEG384J2CALR provides the MSCAN interface needed for daisy-chained cell controllers, plus ADC channels for cell voltage and thermistor readings. The XGATE co-processor executes the cell-balancing control algorithm in parallel with CAN communication, keeping the response deterministic. With 384 KB Flash the part supports IEC 61508-style firmware plus diagnostics. For higher cell counts, the LQFP-112 footprint allows drop-in scaling to the S912XET512BMAGR (512 KB Flash) without PCB redesign.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho S912XEG384J2CALR — 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 | S912XET512BMAGR | S912XET512J2VAGR | S912XET256J2VAG | S912XEG384J2VAL | S912XEG256J2CAL | MC9S12XEQ384CAG | MC9S12XEP768CAG |
|---|---|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | LQFP-112 (20x20 mm) | LQFP-112 (20x20 mm) - same | LQFP-112 (20x20 mm) - same | LQFP-112 (20x20 mm) - same | LQFP-112 (20x20 mm) - same | LQFP-112 (20x20 mm) - same | LQFP-112 (20x20 mm) - same | LQFP-112 (20x20 mm) - same |
| Core | S12X + XGATE | S12X + XGATE | S12X + XGATE | S12X + XGATE | S12X + XGATE | S12X + XGATE | S12X + XGATE | S12X + XGATE |
| Max Frequency | 50 MHz | 50 MHz | 50 MHz | 50 MHz | 50 MHz | 50 MHz | 50 MHz | 50 MHz |
| Flash Memory | 384 KB | 512 KB (+33%) | 512 KB (+33%) | 256 KB (-33%) | 384 KB (same) | 256 KB (-33%) | 384 KB (same) | 768 KB (+100%) |
| SRAM | 24 KB | 32 KB | 32 KB | 16 KB | 24 KB (same) | 16 KB | 24 KB (same) | 48 KB |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +125C (automotive) | -40C to +125C (automotive) | -40C to +125C (automotive) | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C (industrial) |
| XGATE Co-Processor | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| MSCAN (CAN 2.0A/B) | 1 module | 1 module | 1 module | 1 module | 1 module | 1 module | 1 module | 1 module |
| RoHS Compliance | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Bảo phân biệt quan trọng
- Higher Flash density in the same LQFP-112 footprint (vsS912XEG256J2CAL)
- Industrial temperature grade at lower cost than automotive 125C sibling (vsS912XEG384J2VAL)
- Drop-in LQFP-112 with 512 KB Flash upgrade path (vsS912XET512BMAGR)
Ghi chú thiết kế
Estimated: at 50 MHz CPU and XGATE running, with all peripherals clocked, the S912XEG384J2CALR draws approximately 50-80 mA from a 5V supply, yielding roughly 0.25-0.40 W dissipation. Place a 100 nF ceramic decoupling capacitor adjacent to each VDD pin (every 2-3 pins along the package perimeter) and one 4.7 uF bulk tantalum or ceramic on the VDDR pin. The on-chip voltage regulator generates the internal 2.5V core rail; add the manufacturer-recommended external inductor/capacitor network per NXP AN3036. Tie the TEST pin to VSS through a 4.8 kohm resistor to disable test mode and avoid current spikes during reset.
LQFP-112 packages require careful power and ground layout. Use a continuous ground plane on layer 2, and route all GPIO signals on layer 1 or 4. The LQFP-112 exposed thermal pad (if available on this die revision) should be soldered to a 4x4 via array stitched to the ground plane to reduce thermal impedance. Pin 1 is identified by a dot on the package top; orient the PCB silkscreen accordingly. Route the BKGD pin away from PWM outputs to minimize debug noise coupling.
Avoid selecting mask revisions without verifying mask set: the 'J2' suffix here is a specific test program revision; using an unauthorized 'Q' or older mask can change ADC channel assignments. Do not omit the PLL filter capacitor on the XFC pin - missing this causes oscillator startup failure. When migrating firmware from a non-XGATE HCS12 part, ensure interrupt vectors are relocated, because the XGATE co-processor changes the standard HCS12 vector priority. Finally, do not load the internal voltage regulator above its 100 mA limit; if more current is needed, switch to the V1/VE grade parts with an external regulator.
Thông tin tuân thủ
RoHS compliant per LCSC listing (2026-10-19). Industrial temperature grade; AEC-Q100 qualification not specified - choose S912XEG384J2VAL for AEC-Q100-grade automotive applications.
