S912XEP768J4CAL - HCS12X 16-bit MCU 768KB Flash | NXP Semiconductors
MPN: S912XEP768J4CAL ✓ Hoạt độngS912XEP768J4CAL Tóm tắt
A microcontroller (MCU) is an integrated circuit that combines a processor core, program and data memory, and a rich set of peripherals into a single chip. The HCS12X line extends the legacy HCS12 architecture by adding a peripheral co-processor (XGATE) that handles short interrupt routines and DMA-style data movement in parallel with the CPU, raising effective throughput for CAN, LIN, SPI, and PWM workloads. Within the broader taxonomy, the S912XEP768J4CAL sits at microcontroller -> 16-bit MCU -> HCS12X family -> automotive/industrial grade MCU.
Key differentiating specifications include the 768 KB Flash (organized as 768K x 8), 64 KB RAM, 32 KB EEPROM, XGATE RISC co-processor, four ms CAN 2.0 A/B controllers, multiple SCI/SPI/I2C interfaces, an 8-channel 10-bit ADC, and a 16-channel enhanced capture timer. The wide memory density and rich peripheral mix allow a single chip to replace external memory and several companion logic devices in body, chassis, and powertrain nodes.
The S912XEP768J4CAL uses the proven CPU12X core with background debug mode (BDM) for non-intrusive in-circuit development, and supports single-wire debugging plus on-chip hardware breakpoint comparators. An integrated voltage regulator and oscillator driver simplify BOM count, while the industrial operating temperature range of -40C to +85C (suffix J4) suits under-hood and factory-floor environments.
Typical applications include automotive body control modules, CAN gateway nodes, industrial PLC expansion cards, sensor hub MCUs, and HVAC or lighting controllers where the XGATE offload engine excels. The combination of large Flash plus EEPROM also suits field-updatable firmware deployments requiring dual-bank or EEPROM-backed data logging.
When designing with this part, budget for the LQFP-112 land pattern and provide robust ground stitching beneath the exposed pad if a thermal pad variant is used. Place decoupling capacitors as close to each VDD/VSS pair as the layout allows, and route the external oscillator traces symmetrically with a guard ground to minimize EMI.
This page synthesizes distributor pricing, verified parametric data, drop-in compatible alternatives, and practical PCB and firmware design notes that go beyond what the manufacturer PDF alone typically provides.
Bộ thay thế dễ dàng lắp đặt cho S912XEP768J4CAL — 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 S912XEP768J4CAL (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, Temperature Grade, Co-processor, Core Architecture.
MC9S12XEP768CAG
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →S912XEQ384J2CAL
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →S912XEG384J2VAL
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →S912XET512J2VAGR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S12XEQ384CAG
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →S912XEP768J4CAL Tỷ lệ tối đa & tính chất điện
| Core Architecture | HCS12X (CPU12X) |
| Bề rộng đường dữ liệu | 16-bit |
| Program Memory Size | 768 KB (768K x 8) Flash |
| RAM Size | 64 KB |
| EEPROM Size | 32 KB |
| Tần số xung maksimum | 50 MHz |
| Package Type | 112-LQFP (20x20 mm) |
| Số lượng chân | 112 |
| Kiểu lắp đặt | Surface Mount |
| Khoảng nhiệt độ hoạt động | -40C to +85C (industrial, suffix J4) |
| Co-processor | XGATE RISC peripheral co-processor |
| CAN Controllers | 4 x ms CAN 2.0 A/B |
| Trạng thái RoHS | Compliant |
| Temperature Grade | Industrial |
| Terminal Form | Gull Wing |
| Manufacturer | NXP Semiconductors (formerly Freescale Semiconductor) |
Cấu hình chân S912XEP768J4CAL
| Chân 1 | VSS — Digital ground |
| Chân 2 | VDDR — Regulated power supply for internal logic |
| Chân 3 | VDDX — I/O supply voltage reference |
| Chân 4 | VSSX — I/O ground reference |
| Chân 5 | RESET_b — Active-low reset input, open-drain |
| Chân 6 | MODC — Mode control / BDM input |
| Chân 7 | MODB — Mode control input |
| Chân 8 | MODA — Mode control input |
| Chân 9 | XCLKS — Oscillator mode select |
| Chân 10 | EXTAL — External clock / crystal input |
| Chân 11 | XTAL — Crystal oscillator output |
| Chân 12 | TEST — Test mode pin, tie to VSS |
| Chân 13 | VDDA — Analog supply for ADC |
| Chân 14 | VSSA — Analog ground for ADC |
| Chân 15 | PAD0 — Port AD bit 0 / AN0 (ADC input) |
| Chân 16 | PAD1 — Port AD bit 1 / AN1 (ADC input) |
| Chân 17 | PAD2 — Port AD bit 2 / AN2 (ADC input) |
| Chân 18 | PAD3 — Port AD bit 3 / AN3 (ADC input) |
| Chân 19 | PAD4 — Port AD bit 4 / AN4 (ADC input) |
| Chân 20 | PAD5 — Port AD bit 5 / AN5 (ADC input) |
| Chân 21 | PAD6 — Port AD bit 6 / AN6 (ADC input) |
| Chân 22 | PAD7 — Port AD bit 7 / AN7 (ADC input) |
| Chân 23 | VRL — ADC voltage reference low |
| Chân 24 | VRH — ADC voltage reference high |
| Chân 25 | PWM0 — Pulse width modulator output 0 |
| Chân 26 | PWM1 — Pulse width modulator output 1 |
| Chân 27 | PWM2 — Pulse width modulator output 2 |
| Chân 28 | PWM3 — Pulse width modulator output 3 |
| Chân 29 | PWM4 — Pulse width modulator output 4 |
| Chân 30 | PWM5 — Pulse width modulator output 5 |
| Chân 31 | PWM6 — Pulse width modulator output 6 |
| Chân 32 | PWM7 — Pulse width modulator output 7 |
| Chân 33 | VSS — Digital ground |
| Chân 34 | VDD — Digital supply voltage (5V) |
| Chân 35 | BKGD — Background debug mode (BDM) |
| Chân 36 | TXCAN0 — CAN0 transmit output |
| Chân 37 | RXCAN0 — CAN0 receive input |
| Chân 38 | TXCAN1 — CAN1 transmit output |
| Chân 39 | RXCAN1 — CAN1 receive input |
| Chân 40 | TXCAN2 — CAN2 transmit output |
| Chân 41 | RXCAN2 — CAN2 receive input |
| Chân 42 | TXCAN3 — CAN3 transmit output |
| Chân 43 | RXCAN3 — CAN3 receive input |
| Chân 44 | SCIRX0 — SCI0 receive input (UART) |
| Chân 45 | SCITX0 — SCI0 transmit output (UART) |
| Chân 46 | SCIRX1 — SCI1 receive input (UART) |
| Chân 47 | SCITX1 — SCI1 transmit output (UART) |
| Chân 48 | SCIRX2 — SCI2 receive input (UART) |
| Chân 49 | SCITX2 — SCI2 transmit output (UART) |
| Chân 50 | VSS — Digital ground |
| Chân 51 | VDD — Digital supply voltage (5V) |
| Chân 52 | MOSI0 — SPI0 master out / slave in |
| Chân 53 | MISO0 — SPI0 master in / slave out |
| Chân 54 | SCK0 — SPI0 serial clock |
| Chân 55 | SS0_b — SPI0 slave select (active low) |
| Chân 56 | MOSI1 — SPI1 master out / slave in |
| Chân 57 | MISO1 — SPI1 master in / slave out |
| Chân 58 | SCK1 — SPI1 serial clock |
| Chân 59 | SS1_b — SPI1 slave select (active low) |
| Chân 60 | SDA0 — I2C0 serial data |
| Chân 61 | SCL0 — I2C0 serial clock |
| Chân 62 | SDA1 — I2C1 serial data |
| Chân 63 | SCL1 — I2C1 serial clock |
| Chân 64 | VSS — Digital ground |
| Chân 65 | VDD — Digital supply voltage (5V) |
| Chân 66 | IOC0 — Timer input capture / output compare 0 |
| Chân 67 | IOC1 — Timer input capture / output compare 1 |
| Chân 68 | IOC2 — Timer input capture / output compare 2 |
| Chân 69 | IOC3 — Timer input capture / output compare 3 |
| Chân 70 | IOC4 — Timer input capture / output compare 4 |
| Chân 71 | IOC5 — Timer input capture / output compare 5 |
| Chân 72 | IOC6 — Timer input capture / output compare 6 |
| Chân 73 | IOC7 — Timer input capture / output compare 7 |
| Chân 74 | PE0 — Port E bit 0 / XIRQ |
| Chân 75 | PE1 — Port E bit 1 / IRQ |
| Chân 76 | PE2 — Port E bit 2 / XIRQ |
| Chân 77 | PE3 — Port E bit 3 / IRQ |
| Chân 78 | PE4 — Port E bit 4 / SS2_b |
| Chân 79 | PE5 — Port E bit 5 / MOSI2 |
| Chân 80 | PE6 — Port E bit 6 / MISO2 |
| Chân 81 | PE7 — Port E bit 7 / SCK2 |
| Chân 82 | VSS — Digital ground |
| Chân 83 | VDD — Digital supply voltage (5V) |
| Chân 84 | PJ0 — Port J bit 0 / KWUA0 |
| Chân 85 | PJ1 — Port J bit 1 / KWUA1 |
| Chân 86 | PJ2 — Port J bit 2 / KWUA2 |
| Chân 87 | PJ3 — Port J bit 3 / KWUA3 |
| Chân 88 | PJ4 — Port J bit 4 / KWUA4 |
| Chân 89 | PJ5 — Port J bit 5 / KWUA5 |
| Chân 90 | PJ6 — Port J bit 6 / KWUA6 |
| Chân 91 | PJ7 — Port J bit 7 / KWUA7 |
| Chân 92 | PP0 — Port P bit 0 / PWM8 |
| Chân 93 | PP1 — Port P bit 1 / PWM9 |
| Chân 94 | PP2 — Port P bit 2 / PWM10 |
| Chân 95 | PP3 — Port P bit 3 / PWM11 |
| Chân 96 | PP4 — Port P bit 4 / PWM12 |
| Chân 97 | PP5 — Port P bit 5 / PWM13 |
| Chân 98 | PP6 — Port P bit 6 / PWM14 |
| Chân 99 | PP7 — Port P bit 7 / PWM15 |
| Chân 100 | VSS — Digital ground |
| Chân 101 | VDD — Digital supply voltage (5V) |
| Chân 102 | PT0 — Port T bit 0 / IOC0 alt |
| Chân 103 | PT1 — Port T bit 1 / IOC1 alt |
| Chân 104 | PT2 — Port T bit 2 / IOC2 alt |
| Chân 105 | PT3 — Port T bit 3 / IOC3 alt |
| Chân 106 | PT4 — Port T bit 4 / IOC4 alt |
| Chân 107 | PT5 — Port T bit 5 / IOC5 alt |
| Chân 108 | PT6 — Port T bit 6 / IOC6 alt |
| Chân 109 | PT7 — Port T bit 7 / IOC7 alt |
| Chân 110 | PS0 — Port S bit 0 / SPI2 alt |
| Chân 111 | PS1 — Port S bit 1 / SPI2 alt |
| Chân 112 | VSS — Digital ground (last pin) |
Ứng dụng tiêu biểu
S912XEP768J4CAL phù hợp cho 6 Áp dụngs: Automotive Body Control Module, CAN Gateway Node, Industrial PLC Expansion Card, HVAC Climate Controller, Sensor Hub MCU, Lighting Control ECU.
Automotive Body Control Module
The S912XEP768J4CAL fits automotive body controllers because its 768 KB Flash accommodates large BCM firmware stacks with CAN/LIN stacks, while the four ms CAN 2.0 A/B controllers handle body and chassis bus traffic simultaneously. The XGATE RISC co-processor offloads CAN message handling, freeing the CPU12X to run application logic. Industrial temperature grade -40C to +85C suits cabin and under-hood-adjacent placements.
Được đề xuất
CAN Gateway Node
As a CAN gateway, the S912XEP768J4CAL bridges powertrain, body, and diagnostic CAN buses using its four integrated CAN controllers, eliminating external bridge ICs. The XGATE engine runs filtering and routing tables at zero CPU overhead, while 768 KB Flash holds full gateway routing tables and OEM-specific diagnostic firmware. The 64 KB RAM supports buffering multiple CAN payloads during burst conditions.
Được đề xuất
Industrial PLC Expansion Card
In industrial PLCs the S912XEP768J4CAL serves as an expansion-card MCU with 768 KB Flash for ladder-logic engines and 32 KB EEPROM for recipe storage. The 16-bit HCS12X core runs deterministic PID loops while the XGATE handles high-speed pulse counting via the enhanced capture timer. The four CAN controllers support industrial CANopen and DeviceNet slave operation without external bus ICs.
Được đề xuất
HVAC Climate Controller
HVAC climate modules leverage the S912XEP768J4CAL's 8-channel ADC for temperature and humidity sensing, the enhanced capture timer for blower PWM, and 768 KB Flash for adaptive control algorithms. The XGATE offloads fan-speed closed-loop control, freeing the CPU for cabin climate logic and CAN diagnostics. Industrial temperature grade ensures reliable operation near heater cores.
Được đề xuất
Sensor Hub MCU
Sensor hub applications use the S912XEP768J4CAL's 64 KB RAM and XGATE engine to aggregate SPI and I2C sensor streams, preprocess data, and forward summarized results over CAN. The 32 KB EEPROM retains calibration constants across power cycles, and 768 KB Flash supports on-device DSP-style filtering algorithms. Industrial temperature grade suits factory-floor sensor installations.
Được đề xuất
Lighting Control ECU
Lighting control ECUs benefit from the S912XEP768J4CAL's enhanced PWM channels for dimming, the XGATE for flicker-free PWM update, and CAN bus connectivity for body-network integration. The 32 KB EEPROM stores per-channel calibration and dim curves. The industrial temperature range covers both exterior headlamp and interior ambient lighting environments.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho S912XEP768J4CAL — 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 | MC9S12XEP768CAG | S912XEQ384J2CAL | S912XEG384J2VAL | S912XET512J2VAGR | MC9S12XEQ384CAG |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | LQFP-112 (20x20 mm) | LQFP-144 | LQFP-112 (same) | LQFP-112 (same) | LQFP-144 | LQFP-144 |
| Core Architecture | HCS12X (CPU12X) | HCS12X (same) | HCS12X (same) | HCS12X (same) | HCS12X (same) | HCS12X (same) |
| Flash Memory | 768 KB | 768 KB (same) | 384 KB | 384 KB | 512 KB | 384 KB |
| RAM Size | 64 KB | 64 KB (same) | 32 KB | 32 KB | 32 KB | 32 KB |
| Maximum Frequency | 50 MHz | 50 MHz (same) | 50 MHz (same) | 50 MHz (same) | 50 MHz (same) | 50 MHz (same) |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C | -40C to +85C | -40C to +105C (extended) | -40C to +105C (extended) | -40C to +85C |
| CAN Controllers | 4 x ms CAN 2.0 A/B | 4 x ms CAN (same) | 4 x ms CAN (same) | 4 x ms CAN (same) | 4 x ms CAN (same) | 4 x ms CAN (same) |
| XGATE Co-processor | Yes | Yes (same) | Yes | Yes | Yes | Yes |
Bảo phân biệt quan trọng
- Highest Flash density in the HCS12X LQFP-112 line (vsS912XEQ384J2CAL)
- Larger RAM for buffering CAN and DMA workloads (vsS912XET512J2VAGR)
- Industrial temperature grade suited to under-hood environments (vsS912XEG384J2VAL)
Ghi chú thiết kế
The S912XEP768J4CAL requires a clean 5V supply on VDD pins and a regulated internal rail on VDDR (typically 2.5V generated internally). Place 100 nF ceramic decoupling within 5 mm of every VDD/VSS pair and a 10 uF bulk capacitor near the VDD pins. If using the internal voltage regulator, ensure VDDR has its own 100 nF + 4.7 uF pair. Estimated: at 50 MHz, core current is approximately 60-80 mA depending on peripheral activity, plus 20 mA per active CAN controller.
Route the EXTAL/XTAL traces symmetrically and surround them with a guard ground that connects to the analog ground at a single point near the chip. Keep crystal traces short (<10 mm) to avoid EMI pickup. The BKGD and RESET_b traces must be short and routed away from PWM or CAN outputs to prevent in-circuit noise from triggering spurious BDM entry. Provide a TEST pin tie-down to VSS to disable factory test mode.
Do not leave MODA/MODB/MODC floating at power-up; the default mode determines whether the part boots from internal Flash or waits in BDM. Always wait at least 50 clock cycles after RESET_b goes high before issuing BDM commands, or the BDM will return a sync error. Also, do not enable all four CAN controllers simultaneously in the lowest loop mode without confirming the bus termination is correct, as this will flood the bus with error frames.
Although the HCS12X core runs at modest power, the 768 KB Flash read during continuous ADC sampling can elevate die temperature. Estimated: typical power dissipation at 50 MHz with 3 active CAN controllers and ADC running at 1 MSPS is approximately 350-450 mW. The LQFP-112 has theta_JA around 45 C/W on a standard 4-layer JEDEC test board, giving a 20C rise. Derate above 70C ambient by reducing clock or peripheral count.
Thông tin tuân thủ
RoHS and REACH compliant per distributor listings; JLCPCB and LCSC explicitly mark the part ROHS. The S912XEP768J4CAL is industrial-grade (suffix J4), not AEC-Q100 qualified. For AEC-Q100 designs use automotive-graded S912XEQ384J2CAL-V or similar variants.
