MC9S12XEQ512CAG - 16-Bit S12X MCU, 512KB Flash, 50MHz, 144-LQFP | NXP
料号： MC9S12XEQ512CAG ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $22.5 | $22.50 |
| 10 | $20.25 | $202.50 |
| 100 | $17.85 | $1,785.00 |
| 500 | $16.1 | $8,050.00 |
| 1,000 | $14.4 | $14,400.00 |
MC9S12XEQ512CAG 概述
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash), data memory (RAM), and programmable peripherals. In the embedded system taxonomy, the MC9S12XEQ512CAG is a Flash-based MCU -> CISC microcontroller -> 16-bit embedded controller -> automotive-grade semiconductor. The HCS12X core uses a CISC instruction set with enhanced addressing modes, while the XGATE peripheral co-processor enables offloading of time-critical interrupt servicing to free the main CPU for application code.
Key features include 512 KB on-chip Flash, 32 KB RAM, a 12-bit ADC with 3 us conversion time, an enhanced capture timer (ECT), periodic interrupt timer (PIT), real-time interrupt (RTI), CAN, SCI, SPI, and a memory protection unit supporting supervisor/user privilege separation. The XGATE co-processor operates at twice the bus speed and can be used to implement virtual peripherals and DMA-style data movement at zero CPU overhead.
The device supports multi-voltage I/O (5V or 3.3V) and operates across an extended automotive temperature range (-40C to +85C for the -CAG suffix). Its on-chip regulator accepts a single external 5V supply and generates internal 1.8V and 2.8V rails. The integrated CAN module makes it well-suited for in-vehicle networking and industrial fieldbus.
Typical applications include body control modules (BCM), instrument clusters, automotive HVAC controllers, industrial CAN nodes, and sensor interface platforms. The combination of deterministic interrupt latency and large Flash makes the part a strong fit for firmware-rich automotive ECUs where software-update time and reliability matter.
When designing with this part, note that the 144-LQFP package requires 4-layer PCB for clean SI on the external bus interface, and the XGATE firmware must be loaded into a dedicated RAM region. The MCU's Flash programming model uses a separate erase sector for EEPROM emulation and demands specific sequencing for security unlocking.
This page synthesizes distributor pricing, same-family NXP drop-in alternates, and practical design notes not found in the manufacturer datasheet alone.
直接替换替代料： MC9S12XEQ512CAG ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MC9S12XEQ512CAG （相同外形与封装尺寸） ——差异在于 Package, Operating Temperature, Supply Voltage, Core, ADC.
快速对比工具——选择替代料号进行并排对比：
MC9S12XEQ384CAG
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →MC9S12XDP512CAG
✅ 直接替换📋 参考替代料（不在目录中）
MC9S12XEP768CAG
✅ 直接替换✓ 有现货
$19.85 / 个
查看数据手册 →MC9S12XDT512MAA
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →MC9S12A512CPVE
✅ 直接替换✓ 有现货
$10.45 / 个
查看数据手册 →MC9S12XEQ512CAG 最大额定值与电气特性
| Core | HCS12X (16-bit CISC) |
| Co-processor | XGATE (RISC, 2x bus speed) |
| Bus Speed (Max) | 50 MHz |
| Program Flash | 512 KB (512K x 8) |
| RAM | 32 KB |
| ADC | 12-bit, 3 us conversion time |
| Operating Voltage | 1.8 V / 2.8 V / 5 V (multi-supply I/O) |
| 工作温度 | -40 C to +85 C |
| 封装 | 144-LQFP (20 x 20 mm) |
| 安装类型 | Surface Mount |
| Communication | CAN, SCI, SPI |
| Timers | ECT, PIT, RTI |
| Security | Memory Protection Unit (supervisor/user modes) |
| MSL 等级 | 3 (168 hours) |
| RoHS 状态 | Compliant |
| Series | S12XE Family |
MC9S12XEQ512CAG 引脚配置
| 引脚 1 | VDDR — Voltage regulator output (internal 2.8V) |
| 引脚 2 | VDD1 — Core voltage supply (1.8V internal) |
| 引脚 3 | VDDX — I/O voltage supply (3.3V or 5V) |
| 引脚 4 | VSS — Ground |
| 引脚 5 | RESET_b — Active-low reset input |
| 引脚 6 | MODC — Mode selection (background debug mode) |
| 引脚 7 | BKGD — Background debug and mode select |
| 引脚 8 | PAD0 — Port AD bit 0 (also ATD0.10A) |
| 引脚 9 | PAD1 — Port AD bit 1 |
| 引脚 10 | PAD2 — Port AD bit 2 |
| 引脚 11 | PAD3 — Port AD bit 3 |
| 引脚 12 | PAD4 — Port AD bit 4 |
| 引脚 13 | PAD5 — Port AD bit 5 |
| 引脚 14 | PAD6 — Port AD bit 6 |
| 引脚 15 | PAD7 — Port AD bit 7 |
| 引脚 16 | PAD8 — Port AD bit 8 |
| 引脚 17 | PAD9 — Port AD bit 9 |
| 引脚 18 | PAD10 — Port AD bit 10 |
| 引脚 19 | PAD11 — Port AD bit 11 |
| 引脚 20 | PAD12 — Port AD bit 12 |
| 引脚 21 | PAD13 — Port AD bit 13 |
| 引脚 22 | PAD14 — Port AD bit 14 |
| 引脚 23 | PAD15 — Port AD bit 15 |
| 引脚 24 | PAD16 — Port AD bit 16 |
| 引脚 25 | PAD17 — Port AD bit 17 |
| 引脚 26 | PAD18 — Port AD bit 18 |
| 引脚 27 | PAD19 — Port AD bit 19 |
| 引脚 28 | PAD20 — Port AD bit 20 |
| 引脚 29 | PAD21 — Port AD bit 21 |
| 引脚 30 | PAD22 — Port AD bit 22 |
| 引脚 31 | PAD23 — Port AD bit 23 |
| 引脚 32 | PAD24 — Port AD bit 24 |
| 引脚 33 | PAD25 — Port AD bit 25 |
| 引脚 34 | PAD26 — Port AD bit 26 |
| 引脚 35 | PAD27 — Port AD bit 27 |
| 引脚 36 | PAD28 — Port AD bit 28 |
| 引脚 37 | PAD29 — Port AD bit 29 |
| 引脚 38 | PAD30 — Port AD bit 30 |
| 引脚 39 | PAD31 — Port AD bit 31 |
| 引脚 40 | PA0 — Port A bit 0 (general I/O) |
| 引脚 41 | PA1 — Port A bit 1 |
| 引脚 42 | PA2 — Port A bit 2 |
| 引脚 43 | PA3 — Port A bit 3 |
| 引脚 44 | PA4 — Port A bit 4 |
| 引脚 45 | PA5 — Port A bit 5 |
| 引脚 46 | PA6 — Port A bit 6 |
| 引脚 47 | PA7 — Port A bit 7 |
| 引脚 48 | PB0 — Port B bit 0 |
| 引脚 49 | PB1 — Port B bit 1 |
| 引脚 50 | PB2 — Port B bit 2 |
| 引脚 51 | PB3 — Port B bit 3 |
| 引脚 52 | PB4 — Port B bit 4 |
| 引脚 53 | PB5 — Port B bit 5 |
| 引脚 54 | PB6 — Port B bit 6 |
| 引脚 55 | PB7 — Port B bit 7 |
| 引脚 56 | PC0 — Port C bit 0 |
| 引脚 57 | PC1 — Port C bit 1 |
| 引脚 58 | PC2 — Port C bit 2 |
| 引脚 59 | PC3 — Port C bit 3 |
| 引脚 60 | PC4 — Port C bit 4 |
| 引脚 61 | PC5 — Port C bit 5 |
| 引脚 62 | PC6 — Port C bit 6 |
| 引脚 63 | PC7 — Port C bit 7 |
| 引脚 64 | VSS — Ground |
| 引脚 65 | VDDX — I/O voltage supply |
| 引脚 66 | PE0 — Port E bit 0 (also IRQ interrupt) |
| 引脚 67 | PE1 — Port E bit 1 (also XIRQ interrupt) |
| 引脚 68 | PE2 — Port E bit 2 |
| 引脚 69 | PE3 — Port E bit 3 |
| 引脚 70 | PE4 — Port E bit 4 |
| 引脚 71 | PE5 — Port E bit 5 |
| 引脚 72 | PE6 — Port E bit 6 |
| 引脚 73 | PE7 — Port E bit 7 |
| 引脚 74 | PJ0 — Port J bit 0 (CAN0 TX) |
| 引脚 75 | PJ1 — Port J bit 1 (CAN0 RX) |
| 引脚 76 | PJ2 — Port J bit 2 |
| 引脚 77 | PJ3 — Port J bit 3 |
| 引脚 78 | PJ4 — Port J bit 4 |
| 引脚 79 | PJ5 — Port J bit 5 |
| 引脚 80 | PJ6 — Port J bit 6 |
| 引脚 81 | PJ7 — Port J bit 7 |
| 引脚 82 | PK0 — Port K bit 0 |
| 引脚 83 | PK1 — Port K bit 1 |
| 引脚 84 | PK2 — Port K bit 2 |
| 引脚 85 | PK3 — Port K bit 3 |
| 引脚 86 | PK4 — Port K bit 4 |
| 引脚 87 | PK5 — Port K bit 5 |
| 引脚 88 | PK6 — Port K bit 6 |
| 引脚 89 | PK7 — Port K bit 7 |
| 引脚 90 | PM0 — Port M bit 0 |
| 引脚 91 | PM1 — Port M bit 1 |
| 引脚 92 | PM2 — Port M bit 2 |
| 引脚 93 | PM3 — Port M bit 3 |
| 引脚 94 | PM4 — Port M bit 4 |
| 引脚 95 | PM5 — Port M bit 5 |
| 引脚 96 | PM6 — Port M bit 6 |
| 引脚 97 | PM7 — Port M bit 7 |
| 引脚 98 | PP0 — Port P bit 0 (PWM channel) |
| 引脚 99 | PP1 — Port P bit 1 (PWM channel) |
| 引脚 100 | PP2 — Port P bit 2 (PWM channel) |
| 引脚 101 | PP3 — Port P bit 3 (PWM channel) |
| 引脚 102 | PP4 — Port P bit 4 (PWM channel) |
| 引脚 103 | PP5 — Port P bit 5 (PWM channel) |
| 引脚 104 | PP6 — Port P bit 6 (PWM channel) |
| 引脚 105 | PP7 — Port P bit 7 (PWM channel) |
| 引脚 106 | PS0 — Port S bit 0 (SPI0 SCK) |
| 引脚 107 | PS1 — Port S bit 1 (SPI0 MOSI) |
| 引脚 108 | PS2 — Port S bit 2 (SPI0 MISO) |
| 引脚 109 | PS3 — Port S bit 3 (SPI0 SS) |
| 引脚 110 | PS4 — Port S bit 4 |
| 引脚 111 | PS5 — Port S bit 5 |
| 引脚 112 | PS6 — Port S bit 6 |
| 引脚 113 | PS7 — Port S bit 7 |
| 引脚 114 | PT0 — Port T bit 0 (ECT channel) |
| 引脚 115 | PT1 — Port T bit 1 (ECT channel) |
| 引脚 116 | PT2 — Port T bit 2 (ECT channel) |
| 引脚 117 | PT3 — Port T bit 3 (ECT channel) |
| 引脚 118 | PT4 — Port T bit 4 (ECT channel) |
| 引脚 119 | PT5 — Port T bit 5 (ECT channel) |
| 引脚 120 | PT6 — Port T bit 6 (ECT channel) |
| 引脚 121 | PT7 — Port T bit 7 (ECT channel) |
| 引脚 122 | VDDX — I/O voltage supply |
| 引脚 123 | VSS — Ground |
| 引脚 124 | CAN0TX — CAN 0 transmit output |
| 引脚 125 | CAN0RX — CAN 0 receive input |
| 引脚 126 | VDDX — I/O voltage supply |
| 引脚 127 | XCLKS — Clock select (low=loop controlled) |
| 引脚 128 | EXTAL — External clock/crystal input |
| 引脚 129 | XTAL — Crystal output |
| 引脚 130 | ECLK — ECLK free-running clock output |
| 引脚 131 | TEST — Test mode pin (tie to VSS for floating) |
| 引脚 132 | VDDR — Voltage regulator output |
| 引脚 133 | VSS — Ground |
| 引脚 134 | VDDPLL — PLL supply voltage |
| 引脚 135 | VSSPLL — PLL ground |
| 引脚 136 | PAD32 — Port AD bit 32 (ATD input) |
| 引脚 137 | PAD33 — Port AD bit 33 (ATD input) |
| 引脚 138 | PAD34 — Port AD bit 34 (ATD input) |
| 引脚 139 | PAD35 — Port AD bit 35 (ATD input) |
| 引脚 140 | PAD36 — Port AD bit 36 (ATD input) |
| 引脚 141 | PAD37 — Port AD bit 37 (ATD input) |
| 引脚 142 | PAD38 — Port AD bit 38 (ATD input) |
| 引脚 143 | PAD39 — Port AD bit 39 (ATD input) |
| 引脚 144 | PAD40 — Port AD bit 40 (ATD input) |
典型应用
MC9S12XEQ512CAG 适用于 6 应用s: Automotive Body Control Module (BCM), Industrial CAN-Open Fieldbus Node, Automotive HVAC Climate Controller, Instrument Cluster Display Controller, Automotive Lighting ECU, Sensor Interface / Data Acquisition Module.
Automotive Body Control Module (BCM)
The MC9S12XEQ512CAG fits body control modules because it combines an on-chip CAN 2.0A/B controller with 512 KB of Flash, enough for a full BCM firmware stack (drivers, body application, CAN stack, UDS diagnostics, and bootloader) plus headroom for OTA-friendly A/B image banks. The XGATE co-processor offloads PWM edge generation for lighting and seat motors, freeing the main HCS12X core to run body-domain CAN networking at 500 kbit/s without dropped frames. The 144-LQFP footprint provides ample GPIO for door/wiper/lighting matrices. Operating from -40C to +85C with 5V I/O, it tolerates harsh automotive under-hood electrical environments without external level shifters.
推荐
Industrial CAN-Open Fieldbus Node
In industrial CAN-Open and DeviceNet nodes, the MC9S12XEQ512CAG's on-chip CAN and 32 KB RAM host a CAN-Open stack (CiA 401/402/406) plus PDO/SDO handlers without external memory. The 50 MHz HCS12X core delivers deterministic cycle times down to 1 ms for synchronous PDOs across 16 nodes. The 144-LQFP package exposes the ECT (enhanced capture timer) for precise quadrature decoding of incremental encoders and supports up to 8 PWM channels for motor or valve actuation. Wide operating temperature and on-chip EEPROM emulation (via Flash sector) suit long-life industrial deployments where frequent parameter writes are needed.
推荐
Automotive HVAC Climate Controller
HVAC climate controllers benefit from the MC9S12XEQ512CAG's combination of 12-bit ADC with 3 us conversion for NTC temperature sensor scanning, ECT for blower PWM generation, and SCI for HVAC panel keypad interface. The 512 KB Flash fits firmware for PID blower control, mode-door position tracking, CAN-linked setpoint reception, and diagnostics. XGATE handles the time-critical ADC scan-finished interrupt while the main core executes climate-control logic, ensuring consistent thermal response under all load conditions.
推荐
Instrument Cluster Display Controller
For instrument clusters driving TFT or segment LCD displays, the MC9S12XEQ512CAG provides the SPI throughput (up to 25 Mbit/s on S12X) to drive a TFT driver IC while running CAN-linked vehicle speed/RPM messages. The XGATE co-processor offloads display refresh DMA, freeing CPU cycles for warning-indicator logic, odometer persistence (via Flash EEPROM emulation), and diagnostic fault storage. 512 KB Flash easily holds a cluster graphics library plus J1939/CAN messaging stack for commercial vehicle clusters.
推荐
Automotive Lighting ECU
LED matrix and adaptive headlamp controllers use the MC9S12XEQ512CAG's ECT and XGATE for high-resolution PWM dimming while the main HCS12X core handles LIN/CAN messaging and fault diagnostics. The 5V-tolerant I/O interfaces directly to LED driver ICs and LIN transceivers. The 32 KB RAM accommodates fade-pattern buffers and color-mixing tables for RGB interior lighting, while 512 KB Flash supports DRL, turn signal, and adaptive beam patterns in a single firmware image.
推荐
Sensor Interface / Data Acquisition Module
Multi-channel sensor acquisition modules leverage the MC9S12XEQ512CAG's 12-bit ADC with 3 us conversion (suitable for ~300 kSPS aggregate sampling) and 144-LQFP GPIO count for parallel sensor interfacing. The XGATE co-processor executes time-stamping and DMA-style data movement to RAM buffers without main-CPU intervention, while the HCS12X core aggregates, filters, and transmits data over CAN or SPI. 32 KB RAM holds several seconds of buffered acquisition before CAN transmission.
推荐
推荐产品汇总
工程参考数据： MC9S12XEQ512CAG ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | MC9S12XEQ384CAG | MC9S12XDP512CAG | MC9S12XEP768CAG | MC9S12XDT512MAA | MC9S12A512CPVE |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 144-LQFP (20x20 mm) | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same |
| CPU Speed | 50 MHz | 50 MHz | 80 MHz | 50 MHz | 40 MHz | 25 MHz |
| Flash | 512 KB | 384 KB | 512 KB | 768 KB | 512 KB | 512 KB |
| RAM | 32 KB | 24 KB | 32 KB | 48 KB | 32 KB | 32 KB |
| Co-processor (XGATE) | Yes (RISC, 2x bus) | Yes | Yes | Yes | Yes | No (legacy S12A core) |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +85C |
| Lifecycle / Series | Active / S12XE | Active / S12XE | Active / S12XD | Active / S12XE | Active / S12XD | Active / S12A (legacy) |
关键差异点
- Larger Flash (512 KB) at same CPU speed vs lower-density sibling （对比 MC9S12XEQ384CAG)
- XGATE co-processor vs legacy S12A core （对比 MC9S12A512CPVE)
- Optimized 50 MHz CPU vs higher-throughput XDP variant （对比 MC9S12XDP512CAG)
设计说明
Estimated: supply current at 50 MHz with all peripherals enabled is approximately 65 mA typical; with XGATE idle and main CPU halted it drops to ~25 mA. The internal voltage regulator requires a 100 nF decoupling capacitor close to VDDR/VDD1 pins and a 4.7 uF bulk cap on VDDRX. According to the NXP S12XE reference manual, the on-chip regulator must NOT be used to power external loads - isolate VDDR from external circuitry.
Estimated: the 144-LQFP (20x20 mm) package with 0.5 mm pitch demands a 4-layer stack-up with continuous ground plane under the IC for thermal dissipation and signal integrity. Place decoupling caps (100 nF X7R) within 3 mm of every VDDX/VSS pair. The EXTAL/XTAL crystal traces must be guarded by ground and kept under 10 mm length to minimize EMI radiation.
Do not leave the BKGD pin floating during reset - it must be either pulled high or driven by a programmer. According to the NXP S12XE reference manual, the XGATE co-processor firmware image is loaded into a dedicated RAM region at boot; failing to initialize the XGATE vector table causes silent XGATE interrupts. The TEST pin must be tied to VSS for normal operation - leaving it floating can latch the part into factory test mode.
合规信息
AEC-Q100 qualified for automotive applications per NXP product page. RoHS and REACH compliant. Halogen-free status not explicitly stated in the provided data.