MC9S12A64CFUE - HCS12 16-bit MCU, 64KB Flash, 25MHz, 80-QFP | NXP
MPN: MC9S12A64CFUE ✗ Cuối đờiMC9S12A64CFUE Tóm tắt
An MCU (microcontroller unit) is a single-chip computer containing a CPU, memory and programmable peripherals, used to sense, decide and actuate in embedded systems. Within the broader semiconductor taxonomy, the MC9S12A64CFUE sits in the chain: microcontroller -> embedded MCU -> 16-bit MCU -> HCS12 family -> S12A sub-family -> automotive-grade body controller. The HCS12 core itself descended from the Freescale (now NXP) HC12, optimized for deterministic interrupt response and 16-bit arithmetic in real-time control loops.
Key features include a 25 MHz bus clock, an 8-channel 10-bit ADC, two SCI (UART) channels, one SPI port, one I2C bus, a CAN 2.0 A/B controller, an 8-channel 16-bit PWM module with centre- or edge-aligned modes, and 59 general-purpose I/O lines multiplexed across the 80-QFP. The device includes a 4-channel TIM (ECT) timer, a periodic interrupt timer, an 8-bit accelerometer-friendly PWM, a watchdog timer, and on-chip voltage regulation allowing single 5 V supply operation from 2.35 V to 5.25 V.
Architecturally the part uses a 16-bit data path internally, with an external bus interface that can be configured to 8-bit narrow mode for low-cost memory expansion. The 64 KB Flash is organised as a single linear array with EEPROM for non-volatile user data and a security lock mechanism to protect firmware IP.
Typical applications include automotive body controllers (door modules, seat controllers, mirror adjusters, HVAC panels), industrial CAN nodes, building automation gateways, low-speed sensor hubs, and appliance motor controllers that benefit from CAN connectivity and PWM-driven H-bridge control. The wide operating voltage range and automotive temperature grade (AEC-Q100 qualified) make it well suited to 12 V automotive battery environments.
When designing with this MCU, allocate the 64 KB Flash carefully: bootloader plus application typically leaves 32-48 KB for code. Use BDM (Background Debug Mode) via the dedicated BKGD pin for in-circuit programming and debug, and ensure the CAN bus termination and transceiver (e.g. TJA1050) are matched to the MCU's internal CAN controller.
This page synthesises distributor pricing, drop-in S12A-family alternatives, and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho MC9S12A64CFUE — 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 MC9S12A64CFUE (cùng hình factor và footprint) — khác nhau ở Package, Mounting Type, ADC, Program Memory Size, Supply Voltage.
MC9S12A64CFU
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S12A128CFUE
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S12D64CFUE
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S12E64CFUE
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S12C32CFUE25
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S12A64CFUE16
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MC9S12A64CFUE Tỷ lệ tối đa & tính chất điện
| Manufacturer | NXP Semiconductors |
| Series | HCS12 (S12A family) |
| Core Processor | HCS12 |
| Core Size | 16-bit |
| Architecture | CISC |
| Maximum CPU Speed | 25 MHz |
| Program Memory Size | 64 KB (64K x 8) Flash |
| RAM Size | 4 KB (4K x 8) |
| EEPROM Size | 1 KB (1K x 8) |
| Supply Voltage Range | 2.35 V to 5.25 V |
| Number of I/O Pins | 59 |
| Hộp / Vỏ | 80-QFP, 14 x 14 mm |
| ADC | 8-channel, 10-bit |
| Connectivity | CAN, I2C, SCI (UART), SPI |
| PWM Channels | 8 channels, 16-bit |
| Timers | ECT (4-ch 16-bit), PIT, RTI |
| Watchdog Timer | Yes (COP/CWDT) |
| Operating Temperature Grade | Industrial / Automotive AEC-Q100 |
| Kiểu lắp đặt | Surface Mount (Gull Wing) |
| Part Status | Active / NRND |
| Trạng thái RoHS | Compliant |
Cấu hình chân MC9S12A64CFUE
| Chân 1 | BKGD — Background Debug Mode pin for BDM communication |
| Chân 2 | VDDR — Voltage regulator supply input |
| Chân 3 | VSS — Ground |
| Chân 4 | VDDX — External I/O supply voltage |
| Chân 5 | VSSX — I/O ground |
| Chân 6 | RESET — Active-low reset input |
| Chân 7 | TEST — Test mode pin (must be tied low in normal operation) |
| Chân 8 | PAD0 — Port AD bit 0 / AN0 (ADC input) |
| Chân 9 | PAD1 — Port AD bit 1 / AN1 (ADC input) |
| Chân 10 | PAD2 — Port AD bit 2 / AN2 (ADC input) |
| Chân 11 | PAD3 — Port AD bit 3 / AN3 (ADC input) |
| Chân 12 | PAD4 — Port AD bit 4 / AN4 (ADC input) |
| Chân 13 | PAD5 — Port AD bit 5 / AN5 (ADC input) |
| Chân 14 | PAD6 — Port AD bit 6 / AN6 (ADC input) |
| Chân 15 | PAD7 — Port AD bit 7 / AN7 (ADC input) |
| Chân 16 | PWM0 — PWM channel 0 output |
| Chân 17 | PWM1 — PWM channel 1 output |
| Chân 18 | PWM2 — PWM channel 2 output |
| Chân 19 | PWM3 — PWM channel 3 output |
| Chân 20 | PWM4 — PWM channel 4 output |
| Chân 21 | PWM5 — PWM channel 5 output |
| Chân 22 | PWM6 — PWM channel 6 output |
| Chân 23 | PWM7 — PWM channel 7 output |
| Chân 24 | VDDR — Voltage regulator supply input |
| Chân 25 | VSS — Ground |
| Chân 26 | XCLKS — Clock mode select |
| Chân 27 | EXTAL — External clock / crystal input |
| Chân 28 | XTAL — Crystal output |
| Chân 29 | ECLK — ECLK output (system clock) |
| Chân 30 | VSSPLL — PLL ground |
| Chân 31 | VDDPLL — PLL supply |
| Chân 32 | PE0 — Port E bit 0 / XIRQ |
| Chân 33 | PE1 — Port E bit 1 / IRQ |
| Chân 34 | PE2 — Port E bit 2 |
| Chân 35 | PE3 — Port E bit 3 |
| Chân 36 | PE4 — Port E bit 4 |
| Chân 37 | PE5 — Port E bit 5 / MODC |
| Chân 38 | PE6 — Port E bit 6 / MODB |
| Chân 39 | PE7 — Port E bit 7 / MODA |
| Chân 40 | PH0 — Port H bit 0 / SS |
| Chân 41 | PH1 — Port H bit 1 / SCK |
| Chân 42 | PH2 — Port H bit 2 / MOSI |
| Chân 43 | PH3 — Port H bit 3 / MISO |
| Chân 44 | PH4 — Port H bit 4 / TXD1 |
| Chân 45 | PH5 — Port H bit 5 / RXD1 |
| Chân 46 | PH6 — Port H bit 6 / TXD0 |
| Chân 47 | PH7 — Port H bit 7 / RXD0 |
| Chân 48 | PJ0 — Port J bit 0 / CANRX |
| Chân 49 | PJ1 — Port J bit 1 / CANTX |
| Chân 50 | PJ2 — Port J bit 2 |
| Chân 51 | PJ3 — Port J bit 3 |
| Chân 52 | PJ4 — Port J bit 4 |
| Chân 53 | PJ5 — Port J bit 5 |
| Chân 54 | PJ6 — Port J bit 6 |
| Chân 55 | PJ7 — Port J bit 7 |
| Chân 56 | PK0 — Port K bit 0 |
| Chân 57 | PK1 — Port K bit 1 |
| Chân 58 | PK2 — Port K bit 2 |
| Chân 59 | PK3 — Port K bit 3 |
| Chân 60 | PK4 — Port K bit 4 |
| Chân 61 | PK5 — Port K bit 5 |
| Chân 62 | PK6 — Port K bit 6 |
| Chân 63 | PK7 — Port K bit 7 |
| Chân 64 | PA0 — Port A bit 0 |
| Chân 65 | PA1 — Port A bit 1 |
| Chân 66 | PA2 — Port A bit 2 |
| Chân 67 | PA3 — Port A bit 3 |
| Chân 68 | PA4 — Port A bit 4 |
| Chân 69 | PA5 — Port A bit 5 |
| Chân 70 | PA6 — Port A bit 6 |
| Chân 71 | PA7 — Port A bit 7 |
| Chân 72 | PB0 — Port B bit 0 |
| Chân 73 | PB1 — Port B bit 1 |
| Chân 74 | PB2 — Port B bit 2 |
| Chân 75 | PB3 — Port B bit 3 |
| Chân 76 | PB4 — Port B bit 4 |
| Chân 77 | PB5 — Port B bit 5 |
| Chân 78 | PB6 — Port B bit 6 |
| Chân 79 | PB7 — Port B bit 7 |
| Chân 80 | VSS — Ground |
Ứng dụng tiêu biểu
MC9S12A64CFUE phù hợp cho 6 Áp dụngs: Automotive Body Control Module (BCM), HVAC Climate Control Panel, Industrial CAN Sensor Node, Appliance Motor Controller (BLDC/PMSM), Building Automation Gateway, Instrument Cluster Sub-Display Controller.
Automotive Body Control Module (BCM)
The MC9S12A64CFUE is well suited for automotive BCM and door-module designs where its integrated CAN 2.0 A/B controller, 8-channel 16-bit PWM and AEC-Q100 qualification reduce BOM cost. In a typical BCM the MCU reads switch inputs via GPIO, drives mirror/motor actuators with PWM through H-bridge drivers (e.g. MC33932), and reports body status on the CAN bus at 500 kbit/s to the gateway. The 64 KB Flash fits bootloader + body-control firmware (door lock, window lift, lighting) with margin for OBD-II diagnostics, and the 4 KB RAM is sufficient for CAN mailbox buffers and a small RTOS.
Được đề xuất
HVAC Climate Control Panel
For HVAC climate-control panels the MC9S12A64CFUE provides the right balance of PWM channels for fan/blower speed control, ADC inputs for temperature sensors, and SCI/UART for the panel-to-CAN gateway link. The 10-bit ADC (8-channel) is sufficient for cabin temperature, evaporator sensor, and potentiometer trim inputs after external averaging. The 8-channel 16-bit PWM drives blower FETs, mode-door actuators and illumination dimming without additional timer ICs, and the AEC-Q100 grade lets the design target automotive cabin environments.
Được đề xuất
Industrial CAN Sensor Node
The MC9S12A64CFUE fits a low-cost industrial CANopen or DeviceNet sensor node where deterministic CAN messaging and 64 KB Flash are needed for protocol stacks and calibration tables. The on-chip CAN 2.0 controller connects directly to an ISO 11898 transceiver such as the TJA1050, supporting 125 kbit/s to 1 Mbit/s bus speeds. The 1 KB EEPROM stores node ID and calibration constants that survive power cycles, while the wide 2.35-5.25 V supply tolerance tolerates 24 V industrial bus rails after local regulation.
Được đề xuất
Appliance Motor Controller (BLDC/PMSM)
For low-power appliance motor control (small BLDC fans, pumps, dishwasher circulation pumps) the MC9S12A64CFUE's 8-channel 16-bit PWM and 4-channel 16-bit Enhanced Capture Timer (ECT) provide the timing resources needed for sensorless or Hall-sensor commutation. The 25 MHz HCS12 core runs simple FOC or trapezoidal commutation loops at switching frequencies up to 20 kHz. CAN connectivity enables appliance-to-display-panel networking in modern washers and refrigerators.
Được đề xuất
Building Automation Gateway
In KNX, BACnet or Modbus building-automation gateways the MC9S12A64CFUE's SCI, SPI and I2C peripherals allow easy bridging to multiple fieldbus transceivers, while CAN provides a robust backbone link. The 64 KB Flash accommodates protocol stacks plus a web-cofiguration page served over SPI-attached Ethernet (e.g. via external ENC28J60). The wide operating voltage and AEC-Q100 grade give design margin for 24 V building-rail environments.
Được đề xuất
Instrument Cluster Sub-Display Controller
For a low-cost sub-display in an instrument cluster the MC9S12A64CFUE drives an external SPI-attached TFT or segment LCD with the on-chip SPI running up to 4 MHz, while the second SCI interfaces to the main cluster MCU. The 8-channel PWM handles backlight dimming, indicator LEDs and gauge needles, and the CAN peripheral receives vehicle speed and engine RPM data from the BCM. AEC-Q100 grade and -40C to +85C operation suit the cabin environment.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC9S12A64CFUE — 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 | MC9S12A64CFU | MC9S12A128CFUE | MC9S12D64CFUE | MC9S12E64CFUE | MC9S12C32CFUE25 | MC9S12A64CFUE16 |
|---|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 80-QFP (14x14) | 80-QFP (14x14) - same | 80-QFP (14x14) - same | 80-QFP (14x14) - same | 80-QFP (14x14) - same | 80-QFP (14x14) - same | 80-QFP (14x14) - same |
| Core | HCS12 16-bit, 25MHz | HCS12 16-bit, 25MHz | HCS12 16-bit, 25MHz | HCS12 16-bit, 25MHz | HCS12 16-bit, 25MHz | HCS12 16-bit, 25MHz | HCS12 16-bit, 16MHz |
| Flash | 64 KB | 64 KB (same) | 128 KB (+100%) | 64 KB (same) | 64 KB (same) | 32 KB (-50%) | 64 KB (same) |
| RAM | 4 KB | 4 KB (same) | 8 KB (+100%) | 4 KB (same) | 4 KB (same) | 2 KB (-50%) | 4 KB (same) |
| GPIO | 59 | 59 | 59 | 59 | 59 | 59 | 59 |
| CAN Controller | 1 (CAN 2.0 A/B) | 1 | 1 | 1 | 1 | 1 | 1 |
| Supply Voltage | 2.35 V to 5.25 V | 2.35 V to 5.25 V | 2.35 V to 5.25 V | 2.35 V to 5.25 V | 2.35 V to 5.25 V | 2.35 V to 5.25 V | 2.35 V to 5.25 V |
Bảo phân biệt quan trọng
- Single-rail 5 V supply with on-chip regulator (vsMC9S12A64CFU)
- 64 KB Flash with 4 KB RAM is the sweet spot for S12A body-control firmware (vsMC9S12C32CFUE25)
- AEC-Q100 qualified with automotive temperature grade (vsIndustrial-only Cortex-M0+ alternatives)
Ghi chú thiết kế
The MC9S12A64CFUE integrates an on-chip voltage regulator fed by VDDR/VSS; tie VDDR to 5 V through a 100 nF + 4.7 uF decoupling network placed within 5 mm of the pins. The internal 2.5 V core logic is generated by the regulator, so VDD/VSS pins must still be decoupled with 100 nF each. For automotive 12 V battery inputs, add a TVS (e.g. SMAJ5.0CA) and a series 100 ohm ferrite bead on VDDR to suppress load-dump transients above 5.25 V.
Estimated: at typical 25 MHz operation with all peripherals enabled the device draws ~50 mA from VDDR, dissipating approximately 250 mW into the 80-QFP package with theta_JA of approximately 45 C/W, yielding a 11 C rise above ambient. This is comfortably below the 125 C junction limit, so no heatsink is required. However, in enclosed automotive modules above 70 C ambient, derate peripheral activity and ensure the PCB copper pour under the exposed die-pad-equivalent QFP leads acts as a thermal spreader.
Use a 4-layer PCB with a continuous ground plane under the 80-QFP for clean CAN-bus signalling and PWM edge integrity. Place the 4.7 uF bulk and 100 nF ceramic decoupling caps within 5 mm of VDDR, VDDX and VDDPLL pin pairs. Route the EXTAL/XTAL crystal traces symmetrically with ground-guard traces and keep them shorter than 10 mm. The CANH/CANL pads (PJ0/PJ1) should connect directly to the TJA1050 transceiver with impedance-controlled 120 ohm differential routing.
Do not leave the TEST pin floating - tie TEST low (VSS) through 10 kohm for normal operation, otherwise the device may enter factory test mode. The MODA/MODB/MODC pins (PE7/PE6/PE5) select the boot mode; default to MODA=MODB=MODC=0 for normal single-chip mode. The BKGD pin is bidirectional - when not using BDM, leave it accessible for in-field firmware updates. Avoid using PWM outputs directly to drive inductive loads without external flyback diodes or FET gate drivers.
Thông tin tuân thủ
AEC-Q100 automotive qualified per NXP product page. Halogen-free per GlobalSpec datasheet metadata. NRND - Not Recommended for New Designs - existing customers can continue to order.
