MC9S12C32CFUE25 - 16-bit 25MHz HCS12 MCU, 32KB Flash | NXP
Référence : MC9S12C32CFUE25 ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $8.32 | $8,32 |
| 10 | $7.49 | $74,90 |
| 100 | $6.42 | $642,00 |
| 500 | $5.78 | $2 890,00 |
| 1 000 | $5.21 | $5 210,00 |
MC9S12C32CFUE25 Présentation
An HCS12 microcontroller is a 16-bit automotive-grade MCU based on the CPU12 core, designed for cost- and space-sensitive general-purpose industrial and automotive network applications. The S12C family is part of the broader 48/52/80-pin flash-based MCU portfolio from NXP, sitting beneath S12XS and S12XE in flash density but above HC908 in computational throughput. Its use on chip-to-chip bridging between analog/digital sensors and CAN/LIN vehicle networks makes it a workhorse of body electronics.
Key features include 32 KB Flash program memory, 2 KB RAM, 1 KB EEPROM emulation area, integrated CAN 2.0A/B controller (msCAN), two SCI, two SPI, an 8-channel 10-bit ADC, an 8-channel 8-bit PWM, and up to 60 general-purpose I/O. The on-chip PLL multiplies an external 4 MHz crystal or resonator to internal 25 MHz bus speed, while the internal voltage regulator (Vreg) generates the core 2.5V from the 3V-5.5V external supply. Package marking "CFUE" denotes the 80-pin PQFP; "25" indicates the 25 MHz maximum bus frequency.
Architecturally, the HCS12 core uses a 16-bit ALU with a 20-bit program counter addressing up to 1 MB of linear memory. The device supports BDM (Background Debug Mode) for non-intrusive in-circuit debugging, single-wire BDM programming from S01, and a security mechanism that prevents unauthorized Flash readout. The wide 3V-5.5V supply range and 0.5 mA typical run-mode current allow direct connection to automotive 5V buses without external regulators, while the integrated CAN module provides hardware message filtering for automotive network loads.
Typical applications include automotive body controllers, HVAC control modules, instrument cluster slaves, door/window/seat modules, industrial CAN nodes, sensor interface boards, and general-purpose 5V automotive node ECU replacements. Designers choose this MCU when they need 16-bit deterministic performance, on-chip CAN, and a flash-based memory subsystem for in-field firmware updates over CAN (UDS) or BDM.
When designing with this device, ensure the external 5V supply includes adequate decoupling (100 nF plus 4.7 uF bulk within 10 mm of each VDD/VSS pair). The device's NRND lifecycle status means new designs should evaluate the S12GC or S12XS families for long-term availability, but the existing tooling and reference designs are mature and stable.
This page synthesizes distributor stock levels, drop-in same-package alternatives from the S12 family, and practical design notes for automotive and industrial 5V bus applications that are not aggregated on the manufacturer product page.
Alternatives de remplacement direct pour MC9S12C32CFUE25 — 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 MC9S12C32CFUE25 (même facteur de forme et même empreinte) — différant par EEPROM Size, Operating Temperature, Package, Program Memory Size, RAM Size.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
MC9S12GC32CFUE
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC9S12C32CFUE16
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC9S12C64MFUE
✅ Remplacement direct✓ En stock
$10.2 / unité
Voir la fiche technique →MC9S12D32CFUE
✅ Remplacement direct✓ En stock
$9.2 / unité
Voir la fiche technique →MC9S12GC64CFUE
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC9S12A64CFUE
✅ Remplacement direct✓ En stock
$21.95 / unité
Voir la fiche technique →MC9S12C32CFUE25 Valeurs maximales et caractéristiques électriques
| Core | HCS12 (CPU12) |
| Largeur du bus de données | 16 bit |
| Fréquence d'horloge maximale | 25 MHz |
| Program Memory Size | 32 KB (32K x 8) Flash |
| RAM Size | 2 KB |
| EEPROM Size | 1 KB (Flash-emulated) |
| Tension d'alimentation | 2.97 V to 5.5 V |
| Internal Core Voltage | 2.5 V (from on-chip Vreg) |
| Température de fonctionnement | -40C to +85C (industrial/automotive) |
| Boîtier | 80-pin PQFP (QFP-80, 14x14 mm) |
| Type de montage | Surface Mount |
| ADC | 10-bit, 8-channel |
| PWM | 8-bit, 8-channel |
| CAN | 1x msCAN (CAN 2.0A/B) |
| SCI | 2x (UART) |
| SPI | 2x |
| GPIO | 60 max |
| Timers | 16-bit TIM with 8-channel capture/compare |
| Debug Interface | BDM (Background Debug Mode) |
| Niveau MSL | 3 (168 hours) |
| Statut RoHS | Compliant |
| Lead-Free | Yes |
| Process Family | S12C 16-bit MCU family |
Configuration des broches de MC9S12C32CFUE25
| Broche 1 | PA0 — Port A bit 0 / AN0 / PWM0 |
| Broche 2 | PA1 — Port A bit 1 / AN1 / PWM1 |
| Broche 3 | PA2 — Port A bit 2 / AN2 / PWM2 |
| Broche 4 | PA3 — Port A bit 3 / AN3 / PWM3 |
| Broche 5 | PA4 — Port A bit 4 / AN4 / PWM4 |
| Broche 6 | PA5 — Port A bit 5 / AN5 / PWM5 |
| Broche 7 | PA6 — Port A bit 6 / AN6 / PWM6 |
| Broche 8 | PA7 — Port A bit 7 / AN7 / PWM7 |
| Broche 9 | VDD — 5V supply (2.97V-5.5V) |
| Broche 10 | VSS — Ground |
| Broche 11 | PB0 — Port B bit 0 |
| Broche 12 | PB1 — Port B bit 1 |
| Broche 13 | PB2 — Port B bit 2 |
| Broche 14 | PB3 — Port B bit 3 |
| Broche 15 | PB4 — Port B bit 4 |
| Broche 16 | PB5 — Port B bit 5 |
| Broche 17 | PB6 — Port B bit 6 |
| Broche 18 | PB7 — Port B bit 7 |
| Broche 19 | PC0 — Port C bit 0 |
| Broche 20 | PC1 — Port C bit 1 |
| Broche 21 | PC2 — Port C bit 2 |
| Broche 22 | PC3 — Port C bit 3 |
| Broche 23 | PC4 — Port C bit 4 |
| Broche 24 | PC5 — Port C bit 5 |
| Broche 25 | PC6 — Port C bit 6 |
| Broche 26 | PC7 — Port C bit 7 |
| Broche 27 | VDDR — Voltage regulator supply |
| Broche 28 | VDD — 5V supply |
| Broche 29 | VSS — Ground |
| Broche 30 | PD0 — Port D bit 0 / CAN0RX |
| Broche 31 | PD1 — Port D bit 1 / CAN0TX |
| Broche 32 | PD2 — Port D bit 2 / SCK0 |
| Broche 33 | PD3 — Port D bit 3 / MOSI0 |
| Broche 34 | PD4 — Port D bit 4 / MISO0 |
| Broche 35 | PD5 — Port D bit 5 / SS0 |
| Broche 36 | PD6 — Port D bit 6 / SCK1 |
| Broche 37 | PD7 — Port D bit 7 / MOSI1 |
| Broche 38 | PE0 — Port E bit 0 / XIRQ |
| Broche 39 | PE1 — Port E bit 1 / IRQ |
| Broche 40 | PE2 — Port E bit 2 |
| Broche 41 | PE3 — Port E bit 3 |
| Broche 42 | PE4 — Port E bit 4 |
| Broche 43 | PE5 — Port E bit 5 |
| Broche 44 | PE6 — Port E bit 6 |
| Broche 45 | PE7 — Port E bit 7 |
| Broche 46 | PF0 — Port F bit 0 |
| Broche 47 | PF1 — Port F bit 1 |
| Broche 48 | PF2 — Port F bit 2 |
| Broche 49 | PF3 — Port F bit 3 |
| Broche 50 | PF4 — Port F bit 4 |
| Broche 51 | PF5 — Port F bit 5 |
| Broche 52 | PF6 — Port F bit 6 |
| Broche 53 | PF7 — Port F bit 7 |
| Broche 54 | PG0 — Port G bit 0 |
| Broche 55 | PG1 — Port G bit 1 |
| Broche 56 | PG2 — Port G bit 2 |
| Broche 57 | PG3 — Port G bit 3 |
| Broche 58 | PG4 — Port G bit 4 |
| Broche 59 | PG5 — Port G bit 5 |
| Broche 60 | PG6 — Port G bit 6 |
| Broche 61 | PG7 — Port G bit 7 |
| Broche 62 | VDD — 5V supply |
| Broche 63 | VSS — Ground |
| Broche 64 | PH0 — Port H bit 0 |
| Broche 65 | PH1 — Port H bit 1 |
| Broche 66 | PH2 — Port H bit 2 |
| Broche 67 | PH3 — Port H bit 3 |
| Broche 68 | PH4 — Port H bit 4 |
| Broche 69 | PH5 — Port H bit 5 |
| Broche 70 | PH6 — Port H bit 6 |
| Broche 71 | PH7 — Port H bit 7 |
| Broche 72 | PJ0 — Port J bit 0 |
| Broche 73 | PJ1 — Port J bit 1 |
| Broche 74 | PJ2 — Port J bit 2 |
| Broche 75 | PJ3 — Port J bit 3 |
| Broche 76 | PJ4 — Port J bit 4 |
| Broche 77 | PJ5 — Port J bit 5 |
| Broche 78 | PJ6 — Port J bit 6 |
| Broche 79 | PJ7 — Port J bit 7 |
| Broche 80 | BKGD — Background Debug Mode pin (BDM) |
Applications typiques
MC9S12C32CFUE25 convient pour 6 applications: Automotive Body Control Module, HVAC Climate Control Module, Door/Seat/Window Lift Controller, Industrial CAN-Node Controller, Instrument Cluster Peripheral Driver, Sensor Interface / Signal Conditioning Hub.
Automotive Body Control Module
The MC9S12C32CFUE25 fits automotive body controllers because its HCS12 core delivers 16-bit deterministic performance and the integrated msCAN controller provides hardware message filtering for CAN 2.0A/B body-network traffic at 500 kbps without CPU intervention. With 32 KB Flash and 2 KB RAM, the device accommodates typical body-control firmware stacks including lighting sequences, window/seat logic, and remote keyless entry state machines. The 2.97V to 5.5V supply range lets the MCU connect directly to a 5V automotive rail derived from the 12V bus, eliminating an external LDO and reducing BOM cost. The 25 MHz bus clock and 8-channel 10-bit ADC support periodic temperature and battery-voltage monitoring tasks common in BCM firmware.
Recommandé
HVAC Climate Control Module
The MC9S12C32CFUE25 fits HVAC control modules where the 8-channel 10-bit ADC reads cabin temperature sensors, blower speed feedback, and mixed-air door position while the 8-channel 8-bit PWM drives blower motors, mode doors, and blend actuators. At 25 MHz the HCS12 core runs the closed-loop PID climate algorithm in under 5 ms, well within the typical 100 ms control loop period. The integrated msCAN allows the HVAC module to broadcast cabin state and accept setpoint commands over the vehicle CAN bus without a separate CAN controller. The -40C to +85C industrial/automotive temperature range covers cabin and under-dash mounting locations.
Recommandé
Door/Seat/Window Lift Controller
The MC9S12C32CFUE25 fits door module controllers because its 60 GPIO plus 8-channel PWM drive window regulators, mirror adjusters, and seat motors while the integrated CAN interface links the door module to the BCM over the body CAN bus. The 32 KB Flash holds window anti-pinch algorithms, seat position memory maps, and door lock state machines. The wide 2.97V to 5.5V supply tolerates cranking transients on the 12V automotive bus when paired with an external TVS diode. Designers can also leverage the BDM debug port for in-vehicle firmware calibration during ECU development.
Recommandé
Industrial CAN-Node Controller
The MC9S12C32CFUE25 fits industrial CANopen and DeviceNet slave nodes because the on-chip msCAN controller provides CAN 2.0A/B hardware framing with 16 message buffers, freeing the CPU for application logic. The 2.97V to 5.5V supply tolerates 24V industrial rails when used with a switching regulator or 5V LDO. At 25 MHz the HCS12 core runs CANopen stack plus sensor I/O processing within the typical 1 ms CAN frame period. The 32 KB Flash holds CANopen object dictionary, EDS parameters, and application firmware for sensor hubs, valve actuators, and motor starters on industrial CAN networks.
Recommandé
Instrument Cluster Peripheral Driver
The MC9S12C32CFUE25 fits instrument cluster peripheral controllers that drive gauges, indicators, and LCD segments via the 8-channel PWM and GPIO bank. The msCAN interface receives vehicle-speed, fuel-level, and engine-RPM messages from the BCM at 500 kbps while the HCS12 core runs gauge damping and warning-light logic. With 32 KB Flash and 2 KB RAM, the device holds typical cluster-slave firmware and CAN message buffers. The wide 5V supply tolerance and -40C to +85C temperature range cover instrument-panel thermal environments without external protection.
Recommandé
Sensor Interface / Signal Conditioning Hub
The MC9S12C32CFUE25 fits sensor interface hubs that aggregate analog sensor data and broadcast it over CAN. The 8-channel 10-bit ADC reads thermistors, pressure sensors, and position feedback while the two SCI channels interface with digital sensors or external ADCs. The 25 MHz HCS12 core runs sensor linearization and CAN message assembly within the typical 10 ms automotive sensor cycle. With 32 KB Flash and 2 KB RAM, the device accommodates calibration tables and CAN message databases. The integrated EEPROM emulation area stores non-volatile calibration data without external memory.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MC9S12C32CFUE25 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MC9S12GC32CFUE | MC9S12C32CFUE16 | MC9S12C64MFUE | MC9S12D32CFUE | MC9S12GC64CFUE | MC9S12A64CFUE |
|---|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 80-pin PQFP (QFP-80, 14x14 mm) | 80-pin PQFP - same | 80-pin PQFP - same | 80-pin PQFP - same | 80-pin PQFP - same | 80-pin PQFP - same | 80-pin PQFP - same |
| Core | HCS12 (CPU12) 16-bit | HCS12 16-bit (GC family) | HCS12 16-bit | HCS12 16-bit | HCS12 16-bit (D family) | HCS12 16-bit (GC family) | HCS12 16-bit (A family) |
| Maximum Clock Frequency | 25 MHz | 25 MHz | 16 MHz (-36%) | 25 MHz | 25 MHz | 25 MHz | 25 MHz |
| Flash Memory | 32 KB | 32 KB | 32 KB | 64 KB (+100%) | 32 KB | 64 KB (+100%) | 64 KB (+100%) |
| RAM Size | 2 KB | 2 KB | 2 KB | 4 KB (+100%) | 2 KB | 4 KB (+100%) | 4 KB (+100%) |
| CAN Controller | 1x msCAN (CAN 2.0A/B) | 1x msCAN | 1x msCAN | 1x msCAN | 1x msCAN | 1x msCAN | 1x msCAN |
| ADC | 10-bit, 8-channel | 10-bit, 8-channel | 10-bit, 8-channel | 10-bit, 8-channel | 10-bit, 8-channel | 10-bit, 16-channel | 10-bit, 16-channel |
| Supply Voltage | 2.97V to 5.5V | 2.97V to 5.5V | 2.97V to 5.5V | 2.97V to 5.5V | 2.97V to 5.5V | 2.97V to 5.5V | 2.97V to 5.5V |
| Lifecycle Status | NRND | Active | NRND | Active | Active | Active | Active |
Principaux différenciateurs
- Recommended migration part available in same package (vs MC9S12GC32CFUE)
- Identical peripherals in lower-cost 16 MHz variant (vs MC9S12C32CFUE16)
- Double Flash and RAM in same footprint (vs MC9S12C64MFUE)
Notes de conception
Place a 4.7 uF bulk tantalum or ceramic capacitor plus a 100 nF decoupling capacitor within 10 mm of each VDD/VSS pair on the MC9S12C32CFUE25. The on-chip bandgap voltage regulator (Vreg) generates the 2.5V internal core from the 2.97V-5.5V external supply, and an external VDDR pin decoupling (100 mF) is required to maintain regulator stability. Estimated: at 25 MHz bus speed and 5V supply, the device draws approximately 15-25 mA typical, so a 100 mA regulator headroom is recommended for transient spikes.
Keep the 4 MHz crystal or ceramic resonator within 5 mm of the EXTAL/XTAL pins with short traces and a ground guard ring to minimize EMI pickup on the MC9S12C32CFUE25. The PLL multiplies this reference to the 25 MHz bus clock, so crystal stability directly affects baud-rate accuracy on SCI and CAN interfaces. Avoid routing noisy signals (PWM, CAN bus) across or beneath the crystal traces to prevent jitter.
When migrating firmware between MC9S12C32CFUE25 and MC9S12GC32CFUE, verify the BDM (Background Debug Mode) pin assignment and reset vector location because the GC family uses an enhanced security scheme. Estimated: BDM firmware that was written for C32 will require re-flashing on GC32 because the security bytes are not bit-compatible. Also confirm the EEPROM emulation sector allocation because GC32 uses a larger sector map for wear-leveling.
Terminate the CAN bus with a 120 ohm resistor at each end of the trunk, and place the CAN transceiver (e.g., TJA1050 or TJA1040) within 50 mm of the MC9S12C32CFUE25's CAN0TX/CAN0RX pins. Keep CAN traces straight and matched in length to avoid reflections at 500 kbps and 1 Mbps bus speeds. For SCI connections to external RS-232 or RS-485 transceivers, add a series 100 ohm resistor at each SCI pin to limit ringing.
Informations de conformité
RoHS compliant per NXP product page. AEC-Q100 qualification not stated on the C32 part number; check S12C-F variant (automotive suffix) for AEC-Q100. Lead-free packaging confirmed. Halogen-free status not verified from web data - marked unknown.
