MC9S12A64CFUE - HCS12 16-bit MCU, 64KB Flash, 25MHz, 80-QFP | NXP
Référence : MC9S12A64CFUE ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $36.56 | $36,56 |
| 10 | $32.1 | $321,00 |
| 100 | $27.85 | $2 785,00 |
| 500 | $24.2 | $12 100,00 |
| 1 000 | $21.95 | $21 950,00 |
MC9S12A64CFUE Présentation
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.
Alternatives de remplacement direct pour MC9S12A64CFUE — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec MC9S12A64CFUE (même facteur de forme et même empreinte) — différant par Package, Mounting Type, ADC, Program Memory Size, Supply Voltage.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
MC9S12A64CFU
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC9S12A128CFUE
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC9S12D64CFUE
✅ Remplacement direct✓ En stock
$16.2 / unité
Voir la fiche technique →MC9S12E64CFUE
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC9S12C32CFUE25
✅ Remplacement direct✓ En stock
$5.21 / unité
Voir la fiche technique →MC9S12A64CFUE16
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
MC9S12A64CFUE Valeurs maximales et caractéristiques électriques
| 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 |
| Boîtier / Format | 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 |
| Type de montage | Surface Mount (Gull Wing) |
| Part Status | Active / NRND |
| Statut RoHS | Compliant |
Configuration des broches de MC9S12A64CFUE
| Broche 1 | BKGD — Background Debug Mode pin for BDM communication |
| Broche 2 | VDDR — Voltage regulator supply input |
| Broche 3 | VSS — Ground |
| Broche 4 | VDDX — External I/O supply voltage |
| Broche 5 | VSSX — I/O ground |
| Broche 6 | RESET — Active-low reset input |
| Broche 7 | TEST — Test mode pin (must be tied low in normal operation) |
| Broche 8 | PAD0 — Port AD bit 0 / AN0 (ADC input) |
| Broche 9 | PAD1 — Port AD bit 1 / AN1 (ADC input) |
| Broche 10 | PAD2 — Port AD bit 2 / AN2 (ADC input) |
| Broche 11 | PAD3 — Port AD bit 3 / AN3 (ADC input) |
| Broche 12 | PAD4 — Port AD bit 4 / AN4 (ADC input) |
| Broche 13 | PAD5 — Port AD bit 5 / AN5 (ADC input) |
| Broche 14 | PAD6 — Port AD bit 6 / AN6 (ADC input) |
| Broche 15 | PAD7 — Port AD bit 7 / AN7 (ADC input) |
| Broche 16 | PWM0 — PWM channel 0 output |
| Broche 17 | PWM1 — PWM channel 1 output |
| Broche 18 | PWM2 — PWM channel 2 output |
| Broche 19 | PWM3 — PWM channel 3 output |
| Broche 20 | PWM4 — PWM channel 4 output |
| Broche 21 | PWM5 — PWM channel 5 output |
| Broche 22 | PWM6 — PWM channel 6 output |
| Broche 23 | PWM7 — PWM channel 7 output |
| Broche 24 | VDDR — Voltage regulator supply input |
| Broche 25 | VSS — Ground |
| Broche 26 | XCLKS — Clock mode select |
| Broche 27 | EXTAL — External clock / crystal input |
| Broche 28 | XTAL — Crystal output |
| Broche 29 | ECLK — ECLK output (system clock) |
| Broche 30 | VSSPLL — PLL ground |
| Broche 31 | VDDPLL — PLL supply |
| Broche 32 | PE0 — Port E bit 0 / XIRQ |
| Broche 33 | PE1 — Port E bit 1 / IRQ |
| Broche 34 | PE2 — Port E bit 2 |
| Broche 35 | PE3 — Port E bit 3 |
| Broche 36 | PE4 — Port E bit 4 |
| Broche 37 | PE5 — Port E bit 5 / MODC |
| Broche 38 | PE6 — Port E bit 6 / MODB |
| Broche 39 | PE7 — Port E bit 7 / MODA |
| Broche 40 | PH0 — Port H bit 0 / SS |
| Broche 41 | PH1 — Port H bit 1 / SCK |
| Broche 42 | PH2 — Port H bit 2 / MOSI |
| Broche 43 | PH3 — Port H bit 3 / MISO |
| Broche 44 | PH4 — Port H bit 4 / TXD1 |
| Broche 45 | PH5 — Port H bit 5 / RXD1 |
| Broche 46 | PH6 — Port H bit 6 / TXD0 |
| Broche 47 | PH7 — Port H bit 7 / RXD0 |
| Broche 48 | PJ0 — Port J bit 0 / CANRX |
| Broche 49 | PJ1 — Port J bit 1 / CANTX |
| Broche 50 | PJ2 — Port J bit 2 |
| Broche 51 | PJ3 — Port J bit 3 |
| Broche 52 | PJ4 — Port J bit 4 |
| Broche 53 | PJ5 — Port J bit 5 |
| Broche 54 | PJ6 — Port J bit 6 |
| Broche 55 | PJ7 — Port J bit 7 |
| Broche 56 | PK0 — Port K bit 0 |
| Broche 57 | PK1 — Port K bit 1 |
| Broche 58 | PK2 — Port K bit 2 |
| Broche 59 | PK3 — Port K bit 3 |
| Broche 60 | PK4 — Port K bit 4 |
| Broche 61 | PK5 — Port K bit 5 |
| Broche 62 | PK6 — Port K bit 6 |
| Broche 63 | PK7 — Port K bit 7 |
| Broche 64 | PA0 — Port A bit 0 |
| Broche 65 | PA1 — Port A bit 1 |
| Broche 66 | PA2 — Port A bit 2 |
| Broche 67 | PA3 — Port A bit 3 |
| Broche 68 | PA4 — Port A bit 4 |
| Broche 69 | PA5 — Port A bit 5 |
| Broche 70 | PA6 — Port A bit 6 |
| Broche 71 | PA7 — Port A bit 7 |
| Broche 72 | PB0 — Port B bit 0 |
| Broche 73 | PB1 — Port B bit 1 |
| Broche 74 | PB2 — Port B bit 2 |
| Broche 75 | PB3 — Port B bit 3 |
| Broche 76 | PB4 — Port B bit 4 |
| Broche 77 | PB5 — Port B bit 5 |
| Broche 78 | PB6 — Port B bit 6 |
| Broche 79 | PB7 — Port B bit 7 |
| Broche 80 | VSS — Ground |
Applications typiques
MC9S12A64CFUE convient pour 6 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MC9S12A64CFUE — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- Single-rail 5 V supply with on-chip regulator (vs MC9S12A64CFU)
- 64 KB Flash with 4 KB RAM is the sweet spot for S12A body-control firmware (vs MC9S12C32CFUE25)
- AEC-Q100 qualified with automotive temperature grade (vs Industrial-only Cortex-M0+ alternatives)
Notes de conception
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.
Informations de conformité
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.
