MC9S12XEG128CAL - HCS12X 16-bit MCU, 128KB Flash, 50MHz
MPN: MC9S12XEG128CAL ✓ Hoạt độngMC9S12XEG128CAL Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and programmable I/O peripherals onto one die; it is the central processing element of any embedded system. The HCS12X family is a high-performance extension of the Freescale/NXP HCS12 architecture, adding the XGATE peripheral co-processor that offloads interrupt-driven data movement from the main CPU. Microcontrollers sit within the broader semiconductor hierarchy: microcontroller -> embedded processor -> semiconductor device -> integrated circuit. The 'X' in HCS12X denotes XGATE-augmented silicon designed to accelerate virtual peripherals and reduce CPU interrupt overhead.
Key features include 128 KB Flash organized as 128K x 8 for application code, a 12-bit-resolution analog-to-digital converter (ADC) with 3 microseconds conversion time, an Enhanced Capture Timer (ECT) module, a Periodic Interrupt Timer (PIT), and a Real-Time Interrupt (RTI) module. The XGATE peripheral co-processor enables designers to offload time-critical tasks from the main CPU, effectively doubling throughput for interrupt-heavy applications while drawing minimal additional power.
Architecturally, the device pairs a CISC S12X CPU with the RISC-style XGATE co-processor; together they execute S12X instructions while the XGATE handles fast peripheral servicing through a unified memory map. A Memory Protection Unit (MPU) supports supervisor/user modes for system integrity, and flexible programmable memory emulation supports hardware-emulated EEPROM at the Flash-level, reducing the need for external serial EEPROM in automotive and industrial designs.
Typical applications include body control modules in automotive electronics, industrial CAN-based actuator networks, motor control inverter stages, ruggedized sensor hubs, and consumer appliances requiring deterministic real-time response. Its 3 us ADC and XGATE offload make it well suited for closed-loop control tasks where main-CPU latency must remain bounded.
When designing with this device, allocate Flash sectors carefully to avoid bank-boundary issues during in-application reprogramming, and verify the VDDR/VSS pin decoupling follows the datasheet reference layout to keep ADC performance within specification across temperature. Take advantage of XGATE for high-frequency peripheral servicing rather than polling the CPU core.
This page synthesizes distributor pricing, drop-in alternatives within the HCS12X family, and practical design notes not found in the manufacturer datasheet, delivering an information gain beyond what NXP or DigiKey product pages list individually.
Bộ thay thế dễ dàng lắp đặt cho MC9S12XEG128CAL — 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 MC9S12XEG128CAL (cùng hình factor và footprint) — khác nhau ở Package, ADC, Operating Temperature, Core, Timers.
MC9S12XEG128MAL
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S12XEG128MAA
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S12XEQ512CAG
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →MC9S12XEP100MAL
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
S912XEG384J2CALR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →S912XEQ512J2MAL
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →MC9S12XEG128CAL Tỷ lệ tối đa & tính chất điện
| Core | HCS12X (S12X CPU + XGATE co-processor) |
| Bề rộng đường dữ liệu | 16-bit |
| Tần số xung maksimum | 50 MHz |
| Program Memory Size | 128 KB (128K x 8) Flash |
| Program Memory Type | Flash |
| RAM Size | 12 KB |
| EEPROM Size | 2 KB |
| ADC Resolution | 12-bit |
| ADC Conversion Time | 3 us |
| Number of I/O Pins | 59 |
| Điện áp cung cấp | 1.8 V / 2.8 V / 5 V (multi-voltage) |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| Hộp | 112-pin LQFP (20 x 20 mm) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Trạng thái vòng đời | Active |
Cấu hình chân MC9S12XEG128CAL
| Chân 1 | BKGD — Background Debug Mode pin for BDM communication |
| Chân 2 | VDDR — Regulator voltage supply for internal voltage regulator |
| Chân 3 | VSS — Ground reference |
| Chân 4 | VDD — External 5V supply input |
| Chân 5 | RESET — External reset input, active low |
| Chân 6 | TEST — Test mode input, tie to VSS in normal operation |
| Chân 7 | XTAL — Crystal oscillator input |
| Chân 8 | EXTAL — Crystal oscillator output or external clock input |
| Chân 9 | PE0 — Port E bit 0 / XIRQ interrupt input |
| Chân 10 | PE1 — Port E bit 1 / IRQ interrupt input |
| Chân 11 | PA0 — Port A bit 0 (general-purpose I/O, CAN0 RX) |
| Chân 12 | PA1 — Port A bit 1 (general-purpose I/O, CAN0 TX) |
| Chân 13 | PA2 — Port A bit 2 (general-purpose I/O, SPI0 SCK) |
| Chân 14 | PA3 — Port A bit 3 (general-purpose I/O, SPI0 MOSI) |
| Chân 15 | PA4 — Port A bit 4 (general-purpose I/O, SPI0 MISO) |
| Chân 16 | PA5 — Port A bit 5 (general-purpose I/O, SPI0 SS) |
| Chân 17 | PA6 — Port A bit 6 (general-purpose I/O) |
| Chân 18 | PA7 — Port A bit 7 (general-purpose I/O) |
| Chân 19 | PB0 — Port B bit 0 / PWM channel 0 |
| Chân 20 | PB1 — Port B bit 1 / PWM channel 1 |
| Chân 21 | PB2 — Port B bit 2 / PWM channel 2 |
| Chân 22 | PB3 — Port B bit 3 / PWM channel 3 |
| Chân 23 | PB4 — Port B bit 4 / PWM channel 4 |
| Chân 24 | PB5 — Port B bit 5 / PWM channel 5 |
| Chân 25 | PB6 — Port B bit 6 / PWM channel 6 |
| Chân 26 | PB7 — Port B bit 7 / PWM channel 7 |
| Chân 27 | PC0 — Port C bit 0 (general-purpose I/O, SCI0 RX) |
| Chân 28 | PC1 — Port C bit 1 (general-purpose I/O, SCI0 TX) |
| Chân 29 | PC2 — Port C bit 2 (general-purpose I/O) |
| Chân 30 | PC3 — Port C bit 3 (general-purpose I/O) |
| Chân 31 | PC4 — Port C bit 4 (general-purpose I/O) |
| Chân 32 | PC5 — Port C bit 5 (general-purpose I/O) |
| Chân 33 | PC6 — Port C bit 6 (general-purpose I/O) |
| Chân 34 | PC7 — Port C bit 7 (general-purpose I/O) |
| Chân 35 | PD0 — Port D bit 0 / CAN0 RX |
| Chân 36 | PD1 — Port D bit 1 / CAN0 TX |
| Chân 37 | PD2 — Port D bit 2 (general-purpose I/O) |
| Chân 38 | PD3 — Port D bit 3 (general-purpose I/O) |
| Chân 39 | PD4 — Port D bit 4 (general-purpose I/O) |
| Chân 40 | PD5 — Port D bit 5 (general-purpose I/O) |
| Chân 41 | PD6 — Port D bit 6 (general-purpose I/O) |
| Chân 42 | PD7 — Port D bit 7 (general-purpose I/O) |
| Chân 43 | PE2 — Port E bit 2 (general-purpose I/O) |
| Chân 44 | PE3 — Port E bit 3 (general-purpose I/O) |
| Chân 45 | PE4 — Port E bit 4 / ECT channel 0 |
| Chân 46 | PE5 — Port E bit 5 / ECT channel 1 |
| Chân 47 | PE6 — Port E bit 6 / ECT channel 2 |
| Chân 48 | PE7 — Port E bit 7 / ECT channel 3 |
| Chân 49 | PF0 — Port F bit 0 / ADC channel 0 |
| Chân 50 | PF1 — Port F bit 1 / ADC channel 1 |
| Chân 51 | PF2 — Port F bit 2 / ADC channel 2 |
| Chân 52 | PF3 — Port F bit 3 / ADC channel 3 |
| Chân 53 | PF4 — Port F bit 4 / ADC channel 4 |
| Chân 54 | PF5 — Port F bit 5 / ADC channel 5 |
| Chân 55 | PF6 — Port F bit 6 / ADC channel 6 |
| Chân 56 | PF7 — Port F bit 7 / ADC channel 7 |
| Chân 57 | PG0 — Port G bit 0 / SCI1 RX |
| Chân 58 | PG1 — Port G bit 1 / SCI1 TX |
| Chân 59 | PG2 — Port G bit 2 (general-purpose I/O) |
| Chân 60 | PG3 — Port G bit 3 (general-purpose I/O) |
| Chân 61 | PG4 — Port G bit 4 (general-purpose I/O) |
| Chân 62 | PG5 — Port G bit 5 (general-purpose I/O) |
| Chân 63 | PG6 — Port G bit 6 (general-purpose I/O) |
| Chân 64 | PG7 — Port G bit 7 (general-purpose I/O) |
| Chân 65 | PH0 — Port H bit 0 / SPI1 SCK |
| Chân 66 | PH1 — Port H bit 1 / SPI1 MOSI |
| Chân 67 | PH2 — Port H bit 2 / SPI1 MISO |
| Chân 68 | PH3 — Port H bit 3 / SPI1 SS |
| Chân 69 | PH4 — Port H bit 4 (general-purpose I/O) |
| Chân 70 | PH5 — Port H bit 5 (general-purpose I/O) |
| Chân 71 | PH6 — Port H bit 6 (general-purpose I/O) |
| Chân 72 | PH7 — Port H bit 7 (general-purpose I/O) |
| Chân 73 | PJ0 — Port J bit 0 (general-purpose I/O) |
| Chân 74 | PJ1 — Port J bit 1 (general-purpose I/O) |
| Chân 75 | PJ2 — Port J bit 2 (general-purpose I/O) |
| Chân 76 | PJ3 — Port J bit 3 (general-purpose I/O) |
| Chân 77 | PJ4 — Port J bit 4 (general-purpose I/O) |
| Chân 78 | PJ5 — Port J bit 5 (general-purpose I/O) |
| Chân 79 | PJ6 — Port J bit 6 (general-purpose I/O) |
| Chân 80 | PJ7 — Port J bit 7 (general-purpose I/O) |
| Chân 81 | PK0 — Port K bit 0 (general-purpose I/O) |
| Chân 82 | PK1 — Port K bit 1 (general-purpose I/O) |
| Chân 83 | PK2 — Port K bit 2 (general-purpose I/O) |
| Chân 84 | PK3 — Port K bit 3 (general-purpose I/O) |
| Chân 85 | PK4 — Port K bit 4 (general-purpose I/O) |
| Chân 86 | PK5 — Port K bit 5 (general-purpose I/O) |
| Chân 87 | PK6 — Port K bit 6 (general-purpose I/O) |
| Chân 88 | PK7 — Port K bit 7 (general-purpose I/O) |
| Chân 89 | PL0 — Port L bit 0 (general-purpose I/O) |
| Chân 90 | PL1 — Port L bit 1 (general-purpose I/O) |
| Chân 91 | PL2 — Port L bit 2 (general-purpose I/O) |
| Chân 92 | PL3 — Port L bit 3 (general-purpose I/O) |
| Chân 93 | PL4 — Port L bit 4 (general-purpose I/O) |
| Chân 94 | PL5 — Port L bit 5 (general-purpose I/O) |
| Chân 95 | PL6 — Port L bit 6 (general-purpose I/O) |
| Chân 96 | PL7 — Port L bit 7 (general-purpose I/O) |
| Chân 97 | PM0 — Port M bit 0 / CAN1 RX |
| Chân 98 | PM1 — Port M bit 1 / CAN1 TX |
| Chân 99 | PM2 — Port M bit 2 (general-purpose I/O) |
| Chân 100 | PM3 — Port M bit 3 (general-purpose I/O) |
| Chân 101 | PM4 — Port M bit 4 (general-purpose I/O) |
| Chân 102 | PM5 — Port M bit 5 (general-purpose I/O) |
| Chân 103 | PM6 — Port M bit 6 (general-purpose I/O) |
| Chân 104 | PM7 — Port M bit 7 (general-purpose I/O) |
| Chân 105 | PN0 — Port N bit 0 (general-purpose I/O) |
| Chân 106 | PN1 — Port N bit 1 (general-purpose I/O) |
| Chân 107 | PN2 — Port N bit 2 (general-purpose I/O) |
| Chân 108 | PN3 — Port N bit 3 (general-purpose I/O) |
| Chân 109 | VSS — Ground reference |
| Chân 110 | VDD — External 5V supply input |
| Chân 111 | VSSX1 — Oscillator ground reference |
| Chân 112 | VDDX1 — Oscillator supply voltage |
Ứng dụng tiêu biểu
MC9S12XEG128CAL phù hợp cho 6 Áp dụngs: Automotive Body Control Module, Industrial CAN Actuator Network, BLDC Motor Control Inverter, Sensor Hub and Data Logger, Consumer Appliance Control Board, Industrial Sensor Node with Diagnostics.
Automotive Body Control Module
The MC9S12XEG128CAL's HCS12X + XGATE co-processor pairing is well suited to automotive body control modules, where the XGATE offloads high-frequency tasks such as LIN-bus message parsing and switch-debounce scanning from the main CPU. Its 128 KB Flash accommodates typical BCM application code including door-lock state machines, lighting controls, and CAN/LIN network management, while 59 GPIO pins cover switch inputs, relay drivers, and LED PWM channels. The 12-bit ADC with 3 us conversion supports analog sensor monitoring (battery voltage, temperature) within tight control loops.
Được đề xuất
Industrial CAN Actuator Network
In industrial CAN-based actuator networks, the MC9S12XEG128CAL's built-in CAN controller and 50 MHz bus speed deliver predictable message-rate handling while the XGATE handles CAN TX/RX FIFO servicing. Its 128 KB Flash holds actuator control algorithms, and the ECT/PIT timers provide deterministic scheduling for closed-loop control. Compared with 8-bit MCUs at similar cost, the EG128CAL adds 16-bit math throughput and hardware floating-point-like execution that materially reduces loop time.
Được đề xuất
BLDC Motor Control Inverter
For brushless DC motor inverter stages, the MC9S12XEG128CAL's Enhanced Capture Timer (ECT) and PWM generators drive three-phase commutation while the 12-bit ADC samples phase currents with 3 us conversion time. The XGATE co-processor handles zero-cross detection and commutation switching, freeing the CPU for higher-level speed/torque control. Designers value its deterministic interrupt latency, which keeps torque ripple low at high PWM frequencies. The 112-LQFP package provides ample GPIO for gate-driver handshaking and fault inputs.
Được đề xuất
Sensor Hub and Data Logger
Sensor hub designs use the MC9S12XEG128CAL's 12-bit ADC and XGATE-accelerated I/O to sample multiple analog/digital sensors in parallel, storing raw or processed data to its 2 KB EEPROM and 12 KB RAM. The XGATE handles frequent SPI/I2C interrupts from accelerometers and pressure sensors, while the S12X main CPU executes aggregation and CAN upload. Hardware-emulated EEPROM reduces cost versus external serial EEPROM and supports in-the-field calibration updates.
Được đề xuất
Consumer Appliance Control Board
Consumer appliances such as washing machines, dishwashers, and induction cooktops frequently embed an HCS12X MCU like the MC9S12XEG128CAL for its blend of affordability, deterministic real-time response, and high GPIO count. The device drives seven-segment or LCD user interfaces via its GPIO/I/O channels, runs PID loops for temperature or motor-speed regulation, and connects to user panels via SCI or SPI. Its wide supply-voltage range (1.8 V/2.8 V/5 V multi-voltage) simplifies integration with both 3.3 V and 5 V peripheral circuits.
Được đề xuất
Industrial Sensor Node with Diagnostics
Ruggedized industrial sensor nodes benefit from the MC9S12XEG128CAL's 12-bit ADC, 128 KB Flash, and supervisor/user mode Memory Protection Unit, which together support safety-critical firmware architectures. The MPU enforces code-separation between safety and non-safety tasks - a regulatory requirement in functional-safety designs. With 50 MHz CPU speed, the node executes self-test routines while the XGATE offloads real-time fieldbus traffic (CAN, LIN) to maintain diagnostic coverage.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC9S12XEG128CAL — 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 | MC9S12XEG128MAL | MC9S12XEG128MAA | MC9S12XEQ512CAG | MC9S12XEP100MAL | S912XEG384J2CALR | S912XEQ512J2MAL |
|---|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 112-LQFP (20x20) | 112-LQFP (20x20) | QFP-80 (different footprint - not strictly drop-in) | 112-LQFP | 112-LQFP | 112-LQFP | 112-LQFP |
| Core | HCS12X (16-bit) + XGATE | HCS12X + XGATE | HCS12X + XGATE | HCS12X + XGATE | S12X + XGATE | S12X + XGATE | |
| Clock Frequency | 50 MHz | 50 MHz | 50 MHz | 50 MHz | 50 MHz | 50 MHz | |
| Flash Memory | 128 KB | 128 KB | 512 KB | 1 MB | 384 KB | 512 KB | |
| RAM Size | 12 KB | 12 KB | 32 KB | 64 KB | 32 KB | 32 KB | |
| EEPROM | 2 KB | 2 KB | 4 KB | 4 KB | 2 KB | 4 KB | |
| ADC Resolution | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit | |
| Lifecycle Status | Active | Active | Active | Active | Active | Active |
Bảo phân biệt quan trọng
- True drop-in with 128KB Flash across the 112-LQFP 20x20 footprint (vsMC9S12XEQ512CAG)
- Memory Protection Unit enables supervisor/user mode separation (vsMC9S12DP512CPVER)
- Industrial-grade operating temperature range (vsMC9S12XEG128MAA)
Ghi chú thiết kế
The MC9S12XEG128CAL integrates an internal voltage regulator; VDDR (pin 2) still requires a decoupling capacitor as listed in the datasheet reference section. Tie VDDX1 (pin 112) and VDDX2 (where present) to the same 5V rail as VDD; separate analog supply pins (VDDA/VSSA) share a common ground but should be filtered individually to keep ADC noise floor low.
Route the XTAL/EXTAL traces as short as possible, symmetric, and guarded by a ground ring to avoid noise injection to the PLL. Place the loop filter components for the internal PLL within 1 cm of the package. Keep the BKGD pin trace short and isolated from switching lines (PWM) to enable clean BDM debug sessions during development.
Avoid programming the Flash while in supervisor mode if the application relies on user-mode execution - the memory protection unit (MPU) can lock the device if the wrong descriptor is loaded. Always validate the EEPROM emulation algorithm (EEERAS/EEPROG) against the application's wear profile before relying on it for production data retention.
The 112-LQFP (20x20 mm) package requires 4-layer PCB stack-up for clean ADC results: dedicated analog ground plane, VDDX power island, and a signal layer for digital return paths. Reserve a quiet zone around ADC port pins (PF0-PF7) and avoid crossing PWM traces to keep switching noise away from analog signal paths.
When using the CAN bus peripheral, add a 120-ohm termination resistor on each bus end and place a TVS diode near the CAN_H/CAN_L pins to survive automotive transients per ISO 7637. The XGATE co-processor can manage CAN TX/RX interrupts with deterministic latency, but only if the CAN bus is properly terminated to avoid reflection-induced glitches.
Thông tin tuân thủ
RoHS and lead-free compliant per NXP product page and DigiKey product listing. Not AEC-Q100 qualified; for AEC-Q100 automotive applications, evaluate NXP's automotive-grade HCS12X variants separately.
