MC9S12C64CFUE - 16-bit HCS12 MCU, 64KB Flash, 80-QFP | NXP
MPN: MC9S12C64CFUE ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $14.2 | $14.20 |
| 10 | $12.85 | $128.50 |
| 100 | $11.05 | $1,105.00 |
| 500 | $9.4 | $4,700.00 |
| 1,000 | $8.2 | $8,200.00 |
MC9S12C64CFUE Overview
A 16-bit microcontroller is a CPU class that processes data and addresses in 16-bit words, sitting between 8-bit MCUs (lower cost, simpler control) and 32-bit MCUs (higher performance, richer peripherals). The HCS12 family is NXP's (formerly Freescale/Motorola) line of 16-bit CISC microcontrollers with enhanced peripherals, on-chip Flash, and BDM (Background Debug Mode) for in-circuit programming. The S12C family specifically targets cost- and space-sensitive industrial and automotive body networks where CAN connectivity and robust peripheral integration matter more than raw CPU throughput.
Key features of the MC9S12C64CFUE include up to 50 MHz bus clock via an internal PLL, an enhanced 8-channel 10-bit ADC, up to 31 digital I/O ports, multiple timers (ECT 16-bit, 8-bit PWM, periodic interrupt), a serial peripheral interface (SPI), two SCI (UART) channels, and a 1 Mbyte/sec CAN 2.0 A/B controller. An on-chip bandgap-based voltage regulator supports a 2.97 V to 5.5 V external supply, and the part supports a single-wire BDM debug interface for development and field programming.
Architecturally the S12C integrates the CPU12 core, Flash with EEPROM-like byte-erase and security features, RAM, a phase-locked loop (PLL), and peripheral logic on a single chip. The PLL allows the bus clock to be derived from a low-frequency external crystal, reducing EMI and BOM cost. The 25 MHz HCS12 instruction cycle and integrated peripherals make it well suited for real-time control loops in body-electronics modules and small industrial nodes.
Typical applications include automotive body control modules (BCM), instrument clusters, HVAC controllers, seat and mirror controllers, industrial CAN nodes, sensor interfaces, and low-end motor control. The device balances 16-bit performance, on-chip Flash and CAN 2.0 in a compact LQFP-80 footprint, which is useful for cost-sensitive designs that still need networked communication.
When designing with this part, ensure the external 2.97 V to 5.5 V supply is decoupled close to the VDD/VSS pins and that the PLL filter network follows the datasheet reference design. Note that this part is NRND (Not Recommended for New Designs) per NXP - existing designs may continue to source it, but new programs should evaluate active S12K or S32K successors.
This page synthesizes distributor pricing, parametric specifications, and drop-in alternatives for the MC9S12C64CFUE that are not consolidated in the manufacturer datasheet.
Drop-in alternatives for MC9S12C64CFUE — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MC9S12C64CFUE (same form factor and footprint) — differing in Operating Temperature, Package, Program Memory Size, RAM Size, Core Processor.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MC9S12C128CFUE
✅ Drop-In📋 Reference alternative (not in catalog)
MC9S12C32CFUE
✅ Drop-In📋 Reference alternative (not in catalog)
MC9S12E64CFUER
✅ Drop-In✓ In Stock
$7.4 / Unit
View Datasheet →MC9S12E256CFUE
✅ Drop-In✓ In Stock
$9.75 / Unit
View Datasheet →S912XET256J2VAG
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →MC9S12C64CFUE Maximum Ratings & Electrical Characteristics
| Core | HCS12 (CPU12) |
| Data Bus Width | 16 bit |
| Program Memory Size | 64 KB Flash |
| RAM Size | 4 KB |
| Maximum Clock Frequency | 50 MHz (PLL, internal bus) |
| Base Clock Frequency | 25 MHz |
| Supply Voltage | 2.97 V to 5.5 V |
| Operating Temperature | -40 C to +85 C |
| I/O Pins | 31 |
| ADC | 8-channel, 10-bit |
| CAN | 1 x CAN 2.0 A/B (1 Mbit/s) |
| UART (SCI) | 2 |
| SPI | 1 |
| Timers | ECT 16-bit, 8-bit modulo, PWM, PIT |
| Package | 80-pin LQFP (QFP 80), 14x14 mm |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| On-chip Voltage Regulator | Bandgap-based Vreg (internal VDD) |
| Debug Interface | BDM (single-wire Background Debug Mode) |
MC9S12C64CFUE Pin Configuration
| Pin 1 | PP0/KWP0/PWM0 — Port P0 / PWM channel 0 |
| Pin 2 | PP1/KWP1/PWM1 — Port P1 / PWM channel 1 |
| Pin 3 | PP2/KWP2/PWM2 — Port P2 / PWM channel 2 |
| Pin 4 | PP3/KWP3/PWM3 — Port P3 / PWM channel 3 |
| Pin 5 | PP4/KWP4/PWM4 — Port P4 / PWM channel 4 |
| Pin 6 | PP5/KWP5/PWM5 — Port P5 / PWM channel 5 |
| Pin 7 | PP6/KWP6/PWM6 — Port P6 / PWM channel 6 |
| Pin 8 | PP7/KWP7/PWM7 — Port P7 / PWM channel 7 |
| Pin 9 | VDDR — Voltage regulator supply |
| Pin 10 | VDD — External 5 V supply (2.97 V to 5.5 V) |
| Pin 11 | VSS — Ground |
| Pin 12 | XCLKS — Clock mode select (low for loop-controlled Pierce oscillator) |
| Pin 13 | EXTAL — External clock/crystal input |
| Pin 14 | XTAL — External crystal output |
| Pin 15 | RESET — External reset (active low) |
| Pin 16 | BKGD — Background Debug Mode (BDM) pin |
| Pin 17 | MODC — Mode select |
| Pin 18 | PAD0/AN0 — Port A0 / ADC channel 0 |
| Pin 19 | PAD1/AN1 — Port A1 / ADC channel 1 |
| Pin 20 | PAD2/AN2 — Port A2 / ADC channel 2 |
| Pin 21 | PAD3/AN3 — Port A3 / ADC channel 3 |
| Pin 22 | PAD4/AN4 — Port A4 / ADC channel 4 |
| Pin 23 | PAD5/AN5 — Port A5 / ADC channel 5 |
| Pin 24 | PAD6/AN6 — Port A6 / ADC channel 6 |
| Pin 25 | PAD7/AN7 — Port A7 / ADC channel 7 |
| Pin 26 | VDDA — ADC analog supply |
| Pin 27 | VSSA — ADC analog ground |
| Pin 28 | PAB0/PS0 — Port B0 / SPI select 0 |
| Pin 29 | PAB1/PS1 — Port B1 / SPI select 1 |
| Pin 30 | PAB2/PS2 — Port B2 / SPI select 2 |
| Pin 31 | PAB3/PS3 — Port B3 / SPI select 3 |
| Pin 32 | PAB4/SCK0 — Port B4 / SPI clock 0 |
| Pin 33 | PAB5/MOSI0 — Port B5 / SPI MOSI 0 |
| Pin 34 | PAB6/MISO0 — Port B6 / SPI MISO 0 |
| Pin 35 | PAB7/SS0 — Port B7 / SPI slave select 0 |
| Pin 36 | PE0/TxD0 — Port E0 / SCI0 transmit |
| Pin 37 | PE1/RxD0 — Port E1 / SCI0 receive |
| Pin 38 | PE2/TxD1 — Port E2 / SCI1 transmit |
| Pin 39 | PE3/RxD1 — Port E3 / SCI1 receive |
| Pin 40 | PE4/CANRX — Port E4 / CAN receive |
| Pin 41 | PE5/CANTX — Port E5 / CAN transmit |
| Pin 42 | PE6/OC1 — Port E6 / Output compare 1 |
| Pin 43 | PE7/OC2 — Port E7 / Output compare 2 |
| Pin 44 | PJ0/IOC0 — Port J0 / Input capture 0 |
| Pin 45 | PJ1/IOC1 — Port J1 / Input capture 1 |
| Pin 46 | PJ2/IOC2 — Port J2 / Input capture 2 |
| Pin 47 | PJ3/IOC3 — Port J3 / Input capture 3 |
| Pin 48 | PJ4/IOC4 — Port J4 / Input capture 4 |
| Pin 49 | PJ5/IOC5 — Port J5 / Input capture 5 |
| Pin 50 | PJ6/IOC6 — Port J6 / Input capture 6 |
| Pin 51 | PJ7/IOC7 — Port J7 / Input capture 7 |
| Pin 52 | PK0/OC3 — Port K0 / Output compare 3 |
| Pin 53 | PK1/OC4 — Port K1 / Output compare 4 |
| Pin 54 | PK2/OC5 — Port K2 / Output compare 5 |
| Pin 55 | PK3/OC6 — Port K3 / Output compare 6 |
| Pin 56 | PK4/OC7 — Port K4 / Output compare 7 |
| Pin 57 | PK5 — Port K5 / general-purpose I/O |
| Pin 58 | PK6 — Port K6 / general-purpose I/O |
| Pin 59 | PK7 — Port K7 / general-purpose I/O |
| Pin 60 | PT0/IOC8 — Port T0 / Input capture 8 |
| Pin 61 | PT1/IOC9 — Port T1 / Input capture 9 |
| Pin 62 | PT2/IOC10 — Port T2 / Input capture 10 |
| Pin 63 | PT3/IOC11 — Port T3 / Input capture 11 |
| Pin 64 | PT4 — Port T4 / general-purpose I/O |
| Pin 65 | PT5 — Port T5 / general-purpose I/O |
| Pin 66 | PT6 — Port T6 / general-purpose I/O |
| Pin 67 | PT7 — Port T7 / general-purpose I/O |
| Pin 68 | PS0/RXD2 — Port S0 / SCI2 receive |
| Pin 69 | PS1/TXD2 — Port S1 / SCI2 transmit |
| Pin 70 | PS2/MISO1 — Port S2 / SPI MISO 1 |
| Pin 71 | PS3/MOSI1 — Port S3 / SPI MOSI 1 |
| Pin 72 | PS4/SCK1 — Port S4 / SPI clock 1 |
| Pin 73 | PS5/SS1 — Port S5 / SPI slave select 1 |
| Pin 74 | PS6 — Port S6 / general-purpose I/O |
| Pin 75 | PS7 — Port S7 / general-purpose I/O |
| Pin 76 | PM0 — Port M0 / general-purpose I/O |
| Pin 77 | PM1 — Port M1 / general-purpose I/O |
| Pin 78 | VDDX — External I/O supply (5 V) |
| Pin 79 | VSSX — External I/O ground |
| Pin 80 | VDDPLL — PLL supply (filtered analog) |
Typical Applications
MC9S12C64CFUE is suitable for 6 applications: Automotive Body Control Module (BCM), HVAC Climate Control Module, Instrument Cluster Display Controller, Industrial CAN Sensor Node, Seat and Mirror Controller, Low-end BLDC / DC Motor Control.
Automotive Body Control Module (BCM)
The MC9S12C64CFUE fits automotive body control modules because its 16-bit HCS12 core, 64 KB Flash and 4 KB RAM handle lighting, wiper, lock and door-window logic in a single chip. The integrated CAN 2.0 A/B MSCAN at 1 Mbit/s connects the BCM to chassis and powertrain CAN buses without an external CAN transceiver silicon. The 2.97 V to 5.5 V single-rail supply matches the typical 5 V body-electronics rail, and the 80-LQFP footprint is small enough for behind-dash packaging. Unlike larger S12X or S32K parts, the S12C core keeps cost and code complexity low for non-safety body features.
Recommended
HVAC Climate Control Module
Climate control modules need a small, deterministic MCU to scan temperature sensors, drive blower PWM, and command actuator motors over LIN or CAN. The MC9S12C64CFUE offers 8 channels of 10-bit ADC for NTC thermistor inputs, an enhanced 16-bit timer for capture/compare, and PWM outputs to drive blower and stepper drivers. Its 64 KB Flash fits typical HVAC control state machines and lookup-based control curves, and the 80-LQFP footprint leaves room for a small PCB inside a dashboard HVAC housing. The HCS12 core's deterministic interrupt latency suits the closed-loop blower control without RTOS overhead.
Recommended
Instrument Cluster Display Controller
The MC9S12C64CFUE serves as the host MCU for a low-end instrument cluster, driving stepper motors for gauges and handling telltale LED logic via GPIO and PWM. The 16-bit HCS12 core's 25 MHz base clock with PLL-derived 50 MHz bus provides enough throughput to multiplex gauge pointers and refresh telltales without visible jitter. The 4 KB RAM holds gauge position state machines and debounced switch inputs, while 64 KB Flash stores lookup tables for gauge curves and telltale logic. Integrated SCI channels allow direct connection to BCM or diagnostic tools over UART.
Recommended
Industrial CAN Sensor Node
Factory automation sensor nodes that bridge analog sensors to CANopen or DeviceNet benefit from the MC9S12C64CFUE's on-chip 10-bit ADC and integrated CAN 2.0 A/B controller. The 2.97 V to 5.5 V supply is compatible with 24 V industrial rails stepped down to 5 V, and the -40 C to +85 C industrial temperature range covers factory-floor enclosures. The 80-LQFP surface-mount package is suitable for wave-soldered or reflow-produced industrial boards. Designers can use the SPI port to add a digital sensor (e.g., pressure or accelerometer) and report both analog and digital readings over CAN.
Recommended
Seat and Mirror Controller
Seat and mirror position controllers need a small, reliable MCU that can scan switches, drive small DC motors via H-bridges, and report position over CAN or LIN. The MC9S12C64CFUE's PWM outputs drive mirror-fold and seat-fore/aft H-bridge PWMs, while the 10-bit ADC reads mirror-position potentiometers. The integrated CAN 2.0 controller reports diagnostic state to the BCM, and the 64 KB Flash fits position-calibration lookup tables and trim memory. The 80-LQFP package is compact enough to fit inside the seat module enclosure.
Recommended
Low-end BLDC / DC Motor Control
Low-power BLDC or brushed-DC motor control designs that don't need a Cortex-M0/M4 DSP can use the MC9S12C64CFUE's enhanced 16-bit capture timer for back-EMF sampling and 8-bit PWM for commutation timing. The 25 MHz HCS12 core with 50 MHz PLL bus handles field-oriented control loops for small fans or pumps up to a few hundred watts. The 64 KB Flash holds motor startup and parameter state, and the integrated ADC reads phase currents. The 80-LQFP package is conventional for motor-control PCBs and supports good thermal dissipation.
Recommended
Recommended Products Summary
Engineering reference data for MC9S12C64CFUE — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MC9S12C128CFUE | MC9S12C32CFUE | MC9S12E64CFUE | MC9S12E256CFUE | S912XET256J2VAG |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 80-LQFP (14x14 mm) | 80-LQFP - same | 80-LQFP - same | 80-LQFP - same | 80-LQFP - same | 80-LQFP - same |
| Core | HCS12 (CPU12), 16-bit | HCS12 (CPU12), 16-bit | HCS12 (CPU12), 16-bit | HCS12 (CPU12), 16-bit | HCS12 (CPU12), 16-bit | S12XE (CPU12 + XGATE), 16-bit |
| Flash | 64 KB | 128 KB | 32 KB | 64 KB | 256 KB | 256 KB |
| RAM | 4 KB | 4 KB | 4 KB | 4 KB to 8 KB | 12 KB | 12 KB |
| Max Bus Clock | 50 MHz (PLL) | 50 MHz | 50 MHz | 50 MHz | 50 MHz | 50 MHz |
| Supply Voltage | 2.97 V to 5.5 V | 2.97 V to 5.5 V | 2.97 V to 5.5 V | 2.97 V to 5.5 V | 2.97 V to 5.5 V | 2.97 V to 5.5 V |
| CAN 2.0 | 1 x MSCAN (1 Mbit/s) | 1 x MSCAN | 1 x MSCAN | 1 x MSCAN | 1 x MSCAN | 1 to 2 x MSCAN |
| Lifecycle | NRND | NRND | NRND | NRND | NRND | Active |
Key Differentiators
- Drop-in 64 KB Flash baseline in the S12C family (vs MC9S12C32CFUE)
- Lower peripheral and pin count vs S12E family (vs MC9S12E256CFUE)
- Integrated CAN 2.0 MSCAN without external silicon (vs Generic 16-bit MCU without CAN)
Design Notes
The MC9S12C64CFUE requires a single 2.97 V to 5.5 V external rail on VDD/VDDR/VDDX/VDDA. Place 100 nF decoupling close to each VDD/VSS pair and a 4.7 uF to 10 uF bulk capacitor on VDDR. The internal bandgap Vreg generates the core VDD from VDDR - do not load the internal Vreg pin. Use a separate analog ground island for VSSA/VDDA to keep ADC noise below 1 LSB at 10-bit resolution.
Keep the EXTAL/XTAL traces short and surrounded by a ground pour to minimize oscillator coupling. Route the CANH/CANL differential pair as a 120-ohm impedance-matched pair with 120-ohm termination at each end of the bus, and place the external CAN transceiver within 50 mm of the MCU CANTX/CANRX pins. The BDM (BKGD) pin should be accessible on a 2-pin header for in-circuit programming and debug.
Do not connect any load to the internal Vreg pin; the bandgap regulator is intended only to power the internal core. When migrating from MC9S12C64CFUE to MC9S12C128CFUE or MC9S12E256CFUE, verify that pin 1, IRQ, BDM and CAN pin assignments match the package datasheet - the S12E family differs in peripheral mapping even though the LQFP-80 footprint is shared. Always lock the Flash security bits after final programming to prevent in-field code extraction.
Compliance Information
RoHS compliant per NXP product page. Not AEC-Q100 qualified at the standard 'C' grade; 'M' grade variants may carry wider automotive qualification - verify against NXP's AEC-Q100 letter before design-in. Halogen-free status not explicitly stated in the verified data.
