S9S12G64F0CLH - 16-bit S12 MCU, 64KB Flash, 25MHz, 64-LQFP | NXP
MPN: S9S12G64F0CLH ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.46 | $9.46 |
| 10 | $8.55 | $85.50 |
| 100 | $7.42 | $742.00 |
| 500 | $6.65 | $3,325.00 |
| 1,000 | $5.9 | $5,900.00 |
S9S12G64F0CLH Overview
What is a 16-bit MCU? A 16-bit microcontroller is an embedded computing device whose central processing unit operates on 16-bit wide data words and addresses, balancing the throughput of 32-bit cores with the code density and cost of 8-bit devices. The NXP S12 family in particular evolved from the original Freescale HC12 architecture and adds on-chip peripherals such as CAN, LIN, SCI, SPI and PWM timers, making it the de facto standard for automotive body electronics and industrial control nodes. Within that hierarchy, the S12G sub-family targets low-cost, low-pin-count applications and sits between 8-bit S08 parts and the higher-end S12XE/S12XEP devices.
Key features of the S9S12G64F0CLH include 64 KB (64K x 8) of embedded Flash with Flash block protection, an internal 25 MHz bus from an on-chip PLL driven by an external crystal or resonator, multiple low-power Stop and Wait modes, an integrated CAN 2.0 A/B controller, an SCI/UART, SPI, an 8-channel 10-bit ADC and a 16-bit timer/PWM subsystem. The 64-LQFP package provides 54 usable I/O pins plus dedicated supply, ground and oscillator pins, suitable for medium-complexity node designs.
The device uses the well-established S12 CPU with BDM (Background Debug Mode) and a single-wire S12 debug interface, allowing real-time development and in-circuit flash programming without requiring a complex multi-pin emulator. Hardware breakpoints, instruction tagging and on-chip trace are supported via standard NXP development tools.
Typical applications include automotive body controllers (BCM), instrument clusters, seat and mirror controllers, HVAC actuators, lighting modules, LIN/CAN sensor nodes, small industrial PLCs and low-cost motor control boards where 16-bit deterministic performance at automotive temperature grades is required.
When designing with this device, provide a clean analog supply for the ADC (AVDD with proper decoupling), keep crystal traces short, and verify the Stop mode wakeup sources match your application; the part supports multiple wakeup timers and interrupts. Always review the latest NXP datasheet and errata before committing to a layout.
This page combines verified distributor data, application-level guidance, and drop-in same-package alternative suggestions that go beyond the manufacturer datasheet to help engineers select and qualify the S9S12G64F0CLH for production.
Drop-in alternatives for S9S12G64F0CLH — 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 S9S12G64F0CLH (same form factor and footprint) — differing in ADC, Communication Interfaces, Core, Program Memory Size.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
S9S12G96F0CLH
✅ Drop-In📋 Reference alternative (not in catalog)
S9S12G128F0CLH
✅ Drop-In📋 Reference alternative (not in catalog)
S9S12G192F0CLH
✅ Drop-In📋 Reference alternative (not in catalog)
S9S12G64F0MLH
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.3 / Unit
View Datasheet →S9S12G64F0VLH
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
S9S12G64F0CLH Maximum Ratings & Electrical Characteristics
| Core | HCS12 (S12G) |
| Data Bus Width | 16 bit |
| Maximum Clock Frequency | 25 MHz |
| Program Memory Size | 64 KB Flash (64K x 8) |
| Operating Temperature Range | -40C to +85C |
| Number of I/O Pins | 54 (max) |
| ADC | 10-bit, multi-channel |
| Communication Interfaces | CAN 2.0A/B, SCI/UART, I2C, SPI |
| Package / Case | 64-LQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| Qualification | Automotive qualified |
S9S12G64F0CLH Pin Configuration
| Pin 1 | VDDR — Voltage regulator supply |
| Pin 2 | VDD — Digital supply voltage |
| Pin 3 | VSS — Digital ground |
| Pin 4 | XCLKS — Clock mode select |
| Pin 5 | EXTAL — External clock/crystal input |
| Pin 6 | XTAL — Crystal output |
| Pin 7 | RESET — External reset input (active low) |
| Pin 8 | TEST — Test mode enable (tie to VSS) |
| Pin 9 | BKGD — Background Debug Mode pin |
| Pin 10 | PE7 — Port E bit 7 / XIRQ |
| Pin 11 | PE6 — Port E bit 6 / IRQ |
| Pin 12 | PE5 — Port E bit 5 / MODC |
| Pin 13 | PE4 — Port E bit 4 / MODB |
| Pin 14 | PE3 — Port E bit 3 / MODA |
| Pin 15 | PE2 — Port E bit 2 |
| Pin 16 | PE1 — Port E bit 1 / TXCAN |
| Pin 17 | PE0 — Port E bit 0 / RXCAN |
| Pin 18 | PAD07 — Port AD bit 7 / AN07 |
| Pin 19 | PAD06 — Port AD bit 6 / AN06 |
| Pin 20 | PAD05 — Port AD bit 5 / AN05 |
| Pin 21 | PAD04 — Port AD bit 4 / AN04 |
| Pin 22 | PAD03 — Port AD bit 3 / AN03 |
| Pin 23 | PAD02 — Port AD bit 2 / AN02 |
| Pin 24 | PAD01 — Port AD bit 1 / AN01 |
| Pin 25 | PAD00 — Port AD bit 0 / AN00 / VRL |
| Pin 26 | VDDA — Analog supply voltage |
| Pin 27 | VSSA — Analog ground |
| Pin 28 | VRH — ADC reference high |
| Pin 29 | VRL — ADC reference low |
| Pin 30 | PWM7 — PWM channel 7 |
| Pin 31 | PWM6 — PWM channel 6 |
| Pin 32 | PWM5 — PWM channel 5 |
| Pin 33 | PWM4 — PWM channel 4 |
| Pin 34 | PWM3 — PWM channel 3 |
| Pin 35 | PWM2 — PWM channel 2 |
| Pin 36 | PWM1 — PWM channel 1 |
| Pin 37 | PWM0 — PWM channel 0 |
| Pin 38 | PT7 — Port T bit 7 / IOC7 |
| Pin 39 | PT6 — Port T bit 6 / IOC6 |
| Pin 40 | PT5 — Port T bit 5 / IOC5 |
| Pin 41 | PT4 — Port T bit 4 / IOC4 |
| Pin 42 | PT3 — Port T bit 3 / IOC3 |
| Pin 43 | PT2 — Port T bit 2 / IOC2 |
| Pin 44 | PT1 — Port T bit 1 / IOC1 |
| Pin 45 | PT0 — Port T bit 0 / IOC0 |
| Pin 46 | PS7 — Port S bit 7 / SS |
| Pin 47 | PS6 — Port S bit 6 / SCK |
| Pin 48 | PS5 — Port S bit 5 / MOSI |
| Pin 49 | PS4 — Port S bit 4 / MISO |
| Pin 50 | PS3 — Port S bit 3 / TXD2 |
| Pin 51 | PS2 — Port S bit 2 / RXD2 |
| Pin 52 | PS1 — Port S bit 1 / TXD1 |
| Pin 53 | PS0 — Port S bit 0 / RXD1 |
| Pin 54 | PJ7 — Port J bit 7 / SCL |
| Pin 55 | PJ6 — Port J bit 6 / SDA |
| Pin 56 | PJ5 — Port J bit 5 |
| Pin 57 | PJ4 — Port J bit 4 |
| Pin 58 | PJ3 — Port J bit 3 |
| Pin 59 | PJ2 — Port J bit 2 |
| Pin 60 | PJ1 — Port J bit 1 / TXCAN4 |
| Pin 61 | PJ0 — Port J bit 0 / RXCAN4 |
| Pin 62 | VDDPLL — PLL supply voltage |
| Pin 63 | VSSPLL — PLL ground |
| Pin 64 | VSSX — I/O ground reference |
Typical Applications
S9S12G64F0CLH is suitable for 6 applications: Automotive Body Control Module (BCM), Instrument Cluster Auxiliary Controller, HVAC Climate Control Actuator, Automotive Lighting Module (Headlamp / Tail Lamp), Industrial CAN/LIN Sensor Node, Seat and Mirror Position Controller.
Automotive Body Control Module (BCM)
The S9S12G64F0CLH fits automotive BCM designs where 64 KB Flash, CAN 2.0A/B, SCI for LIN transceivers, and automotive temperature grading (-40C to +85C) are baseline requirements. The 25 MHz S12 core handles door/window/lamp logic, central locking, and rain-light sensor polling without offloading to external ICs, while the 64-LQFP (10x10 mm) footprint integrates 54 I/O for switch and LED matrix scanning. Compared with 8-bit MCUs, the S12G's CAN hardware reduces firmware overhead by offloading frame filtering and acceptance filtering to dedicated registers, simplifying the application layer.
Recommended
Instrument Cluster Auxiliary Controller
In instrument clusters where the main graphics MCU may be a higher-end device, the S9S12G64F0CLH serves as a low-cost auxiliary controller for telltale LEDs, stepper motor gauges, and switch matrix polling. The S12G's 16-bit timer/PWM subsystem produces accurate PWM dimming for backlights, while 10-bit ADC reads fuel-level and temperature sensors with adequate resolution. The 64 KB Flash hosts the cluster's auxiliary logic plus bootloader, and the automotive-grade temperature range supports under-dash mounting where temperatures can approach 85C during cabin soak.
Recommended
HVAC Climate Control Actuator
The S9S12G64F0CLH is well suited to HVAC flap and blower actuators that demand closed-loop PID control of small DC or stepper motors with LIN or CAN connectivity to the climate control head. The S12G's 16-bit timer channels drive PWM at frequencies suitable for FET-based motor drivers, while the ADC monitors current sense and temperature inputs. With 64 KB Flash, designers can implement sensor linearization, fault diagnostics (UDS over CAN), and limp-home routines in a single chip, eliminating external EEPROM and reducing BOM cost.
Recommended
Automotive Lighting Module (Headlamp / Tail Lamp)
LED headlamp and tail-lamp controllers benefit from the S9S12G64F0CLH's combination of PWM timers for current regulation, CAN/LIN for body-network communication, and 64 KB Flash for dimming curves and Daytime Running Light logic. Each LED string requires a constant-current driver, and the S12G's PWM resolution gives smooth dimming without flicker, a critical parameter for camera-based ADAS perception. The 64-LQFP (10x10 mm) provides enough I/O for multi-channel LED matrix control in adaptive headlamps.
Recommended
Industrial CAN/LIN Sensor Node
Industrial sensor nodes that emulate automotive LIN/CAN slaves (pressure, temperature, position) leverage the S9S12G64F0CLH's CAN 2.0A/B controller, SCI for LIN transceivers, and 10-bit ADC for sensor signal conditioning. The S12G's low-power Stop and Wait modes extend battery life in remote nodes, and the automotive-grade temperature range supports outdoor enclosures and factory floor deployments. With 64 KB Flash, designers can store calibration tables and implement SAE J1939 or LIN 2.x protocol stacks in firmware.
Recommended
Seat and Mirror Position Controller
Memory-seat and power-mirror controllers rely on the S9S12G64F0CLH to read Hall-effect position sensors via the 10-bit ADC, drive brushed DC motors through PWM channels, and communicate with the body controller over CAN or LIN. The S12G's deterministic interrupt latency ensures smooth motor response without jitter, and 64 KB Flash supports position memory tables for multiple driver profiles. The 64-LQFP package exposes enough I/O for end-of-travel limit switches, motor H-bridges, and LED indicators.
Recommended
Recommended Products Summary
Engineering reference data for S9S12G64F0CLH — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | S9S12G96F0CLH | S9S12G128F0CLH | S9S12G192F0CLH | S9S12G64F0MLH | S9S12G64F0VLH |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 64-LQFP (LH) 10x10 mm | 64-LQFP (LH) 10x10 mm - same | 64-LQFP (LH) 10x10 mm - same | 64-LQFP (LH) 10x10 mm - same | 64-LQFP (LH) 10x10 mm - same | 64-LQFP (LH) 10x10 mm - same |
| Core | HCS12 (S12G) | HCS12 (S12G) | HCS12 (S12G) | HCS12 (S12G) | HCS12 (S12G) | HCS12 (S12G) |
| Maximum Clock Frequency | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz |
| Program Memory Size | 64 KB Flash | 96 KB Flash (+50%) | 128 KB Flash (+100%) | 192 KB Flash (+200%) | 64 KB Flash (same) | 64 KB Flash (same) |
| Operating Temperature Range | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Communication Interfaces | CAN 2.0A/B, SCI, SPI, I2C | CAN 2.0A/B, SCI, SPI, I2C | CAN 2.0A/B, SCI, SPI, I2C | CAN 2.0A/B, SCI, SPI, I2C | CAN 2.0A/B, SCI, SPI, I2C | CAN 2.0A/B, SCI, SPI, I2C |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| Number of I/O Pins (max) | 54 | 54 | 54 | 54 | 54 | 54 |
| Automotive Qualified | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Automotive-grade temperature range in a low-cost S12G core (vs MC9S08SH4MFK (8-bit S08 alternative))
- Pin-compatible Flash scalability within the S12G family (vs S9S12G96F0CLH / S9S12G128F0CLH)
- On-chip CAN 2.0A/B controller with hardware acceptance filtering (vs MC908GPZ60-MID (no CAN variant))
Design Notes
Decouple VDD, VDDA, VDDPLL and VDDR with 100 nF ceramic capacitors placed as close as possible to each supply pin, plus a bulk 4.7 uF to 10 uF tantalum or electrolytic on the main VDD rail. The S12G integrates an internal voltage regulator (VDDR), so follow NXP's reference layout for the regulator bypass capacitor to avoid regulator instability. For analog VDDA, use a ferrite bead or small filter to isolate from digital VDD noise; ADC accuracy depends on a quiet analog rail.
Keep the EXTAL/XTAL crystal traces short (under 5 mm), symmetric, and surrounded by a ground pour to minimize EMI and oscillator jitter. Route the BKGD (Background Debug Mode) pin away from high-speed switching signals, and place a test pad on it for in-circuit programming. Use a 4-layer PCB with continuous ground plane under the LQFP-64 footprint to reduce thermal resistance and improve signal integrity for the CAN and SPI buses.
Do not leave the TEST pin floating - tie TEST to VSS via a 10 kohm resistor so the device enters normal user mode instead of test/BDM mode. Ensure the XCLKS pin is configured correctly for the chosen clock source (crystal vs external clock); incorrect XCLKS polarity is a frequent cause of 'no communication' debugging sessions. Always check the latest S12G errata against your firmware revision - NXP publishes errata documents that affect CAN, ADC and Flash operation on specific mask sets.
Compliance Information
AEC-Q100 qualified per NXP S12G family datasheet. RoHS and REACH compliance inferred from NXP automotive-grade product line standards; halogen-free status not explicitly listed in the verified data.