MC9S08RG32CFJ - 8-Bit 8MHz 32KB MCU | NXP | Industrial Control
MPN: MC9S08RG32CFJ ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $20.8595 | $20.86 |
| 10 | $20.8595 | $208.60 |
| 100 | $20.8595 | $2,085.95 |
| 500 | $20.8595 | $10,429.75 |
| 1,000 | $20.8595 | $20,859.50 |
MC9S08RG32CFJ Overview
An 8-bit S08 microcontroller integrates a CPU core, program flash, RAM, digital peripherals, and communication interfaces on one device. It is suited to products where modest processing throughput, deterministic control, and compact pin count are more important than high-bandwidth computation. The MC9S08RG32CFJ's 32 KB flash provides room for embedded application code, while its 2 KB RAM supports working state, buffers, stacks, and peripheral data. The 1.8 V to 3.6 V operating range supports low-voltage embedded systems.
Key verified features include an 8 MHz maximum operating frequency, 32 KB of 32K × 8 flash, 2 KB RAM, a 32-pin LQFP package, and a gull-wing terminal form. Partstack classifies the package as square LQFP with 32 terminals and labels the temperature grade as industrial. LCSC also lists the device as RoHS-compatible, while the supplied data does not provide verified REACH, AEC-Q100, lead-free, halogen-free, or conflict-mineral status.
The part belongs to the HCS08 S08 family and is presented by distributors under both Freescale Semiconductor and NXP Semiconductors naming. That history matters during sourcing and documentation review because the MC9S08RG32CFJ may appear under either brand context, but the target orderable MPN remains MC9S08RG32CFJ. Its 8-bit architecture is appropriate for motor controls, building controls, appliance controllers, sensor nodes, instrumentation, and compact industrial modules.
Designers should verify the complete pinout, peripheral mix, electrical limits, reset behavior, clocking, programming interface, and memory map against the manufacturer datasheet before schematic capture or firmware migration. The verified data does not include individual port assignments, interrupt-vector details, analog channels, timing ranges, absolute maximum ratings, or package thermal resistance, so those values must not be inferred from the distributor summaries.
This product page consolidates the verified 8 MHz, 32 KB flash, 2 KB RAM, 1.8 V to 3.6 V, 32-LQFP, industrial-grade, and distributor-availability facts while explicitly separating unavailable engineering data. It also provides purchasing context and decision guidance for engineers evaluating this S08 MCU without inventing substitute pinouts or unverified lifecycle claims.
Drop-in alternatives for MC9S08RG32CFJ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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Request AlternativesMC9S08RG32CFJ Maximum Ratings & Electrical Characteristics
| Microcontroller Type | HCS08 S08 8-bit microcontroller |
| Maximum CPU Frequency | 8 MHz |
| Flash Memory | 32 KB (32K × 8) |
| RAM Memory | 2 KB |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Architecture | 8-bit |
| Package | 32-LQFP (7 mm × 7 mm) |
| Package Code | LQFP |
| Package Shape | Square |
| Terminal Form | Gull wing |
| Number of Terminals | 32 |
| Mounting Type | Surface mount |
| Temperature Grade | Industrial |
| Embedded Flash | Program memory |
| RoHS Status | RoHS-compatible |
MC9S08RG32CFJ square Pin Configuration Guide
Pin configuration for MC9S08RG32CFJ (square package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for MC9S08RG32CFJ.
Refer to the datasheet for full pin configuration.
Typical Applications
MC9S08RG32CFJ is suitable for 6 applications: Compact Industrial Control Module, Appliance and Building-Control System, Sensor and Acquisition Node, Small Motor and Actuator Controller, Instrumentation and Data Logger, Human-Machine Interface Controller.
Compact Industrial Control Module
The MC9S08RG32CFJ fits a compact controller that reads discrete inputs, coordinates actuators, and stores control logic in 32 KB of flash. Its 8 MHz 8-bit core is suitable for deterministic supervisory tasks rather than demanding signal processing, while 2 KB of RAM supports state variables and small communication buffers. The 1.8 V to 3.6 V operating range can simplify integration into low-voltage industrial modules, but the complete I/O map and timing limits must be confirmed from the manufacturer datasheet before assigning sensors or outputs.
Recommended
Appliance and Building-Control System
The MC9S08RG32CFJ can serve as the central controller in an appliance or building-control system when the required functions fit within its 8-bit architecture and 32 KB flash budget. It can organize button or sensor inputs, relay or motor-control sequencing, status indication, and low-rate communications while operating from a 1.8 V to 3.6 V rail. Firmware should include debouncing, fault handling, safe-state outputs, and watchdog recovery. Exact peripheral availability and pin multiplexing need verification because the supplied distributor snippets do not enumerate them.
Recommended
Sensor and Acquisition Node
MC9S08RG32CFJ is suitable for a low-cost sensor node that samples digital sensors, applies basic filtering, formats data, and transmits it through a simple serial interface. Its 2 KB RAM is adequate for small buffers and working state when algorithms are compact, while the 8 MHz core provides straightforward control-loop execution. The 32-LQFP package offers more external connections than a minimal controller package. However, designers must verify ADC availability, comparator channels, timer channels, and communication peripherals directly in the datasheet rather than infer them from the product family.
Recommended
Small Motor and Actuator Controller
The MC9S08RG32CFJ can coordinate a small motor, solenoid, relay bank, or actuator sequence when the control algorithm does not require a higher-performance MCU. At up to 8 MHz, the device can execute deterministic state machines and pulse timing, while 2 KB of RAM accommodates counters and state data. Power devices should be driven through suitable external transistors or gate drivers rather than loading MCU pins directly. Confirm timer channels, pin states, electrical limits, and thermal conditions before layout because the verified summaries do not provide those detailed values.
Recommended
Instrumentation and Data Logger
MC9S08RG32CFJ can support a small instrumentation front end that gathers measurements, applies configuration, records operating events, and reports status through a low-rate communications interface. The 32 KB flash is useful for firmware and nonvolatile parameters, while 2 KB RAM supports temporary acquisition and formatting buffers. Designers should size worst-case buffer usage and avoid assuming large file-system support from the flash total. Verify analog interfaces, memory endurance, write timing, watchdog behavior, and debug connectivity in the exact manufacturer documentation.
Recommended
Human-Machine Interface Controller
The MC9S08RG32CFJ can manage a compact human-machine interface built from switches, LEDs, encoders, displays, and local input events. Its 8-bit processing capability is appropriate for scanning, debouncing, menu state, and status mapping, and the 1.8 V to 3.6 V range supports low-voltage panel electronics. The 32-LQFP package provides a useful pin budget for multiple interface signals. Before schematic capture, confirm which pins support the required digital functions and whether external display drivers, level shifters, or protection devices are necessary.
Recommended
Recommended Products Summary
Engineering reference data for MC9S08RG32CFJ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product |
|---|---|
| Package | 32-LQFP (7 mm × 7 mm) |
| Brand | NXP Semiconductors |
| Architecture | 8-bit HCS08 S08 |
| Maximum CPU Frequency | 8 MHz |
| Flash Memory | 32 KB (32K × 8) |
| RAM Memory | 2 KB |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Temperature Grade | Industrial |
| Terminal Count | 32 |
| Verified Unit Price | $20.8595 as of 2026-10-21 |
Key Differentiators
- Exact verified identity (vs No verified drop-in alternative)
- Established package and supply context (vs Generic same-speed MCU candidates)
- Industrial-grade classification (vs Unclassified catalog alternatives)
Design Notes
Do not infer pin functions from the 32-LQFP pin count alone. The verified distributor summaries do not provide the individual pin assignment, so every power, ground, reset, clock, port, programming, and no-connect position must be checked in the manufacturer datasheet before schematic release. Also verify the exact ordering code and package drawing; a device with similar flash size and clock speed may use different multiplexing or peripheral assignments.
Design the supply network for the verified 1.8 V to 3.6 V operating range. Place the MCU's required bypass capacitors close to the appropriate supply and ground pins, route high-current return paths away from sensitive inputs, and confirm whether other supply domains or voltage tolerances apply. The supplied data does not state startup sequencing, internal voltage limits, or maximum I/O voltage, so those values must be verified before connecting external signals.
Use the manufacturer's 32-LQFP land pattern and maintain assembly clearance around all leads, including the short side of the gull-wing package. Keep programming/debug access, reset, decoupling, clock components, and exposed test points reachable for production testing. For mixed-signal or high-impedance sensor inputs, keep external traces short and separate them from switching nodes; the exact pin capabilities must be checked in the verified pin table.
Calculate thermal performance from the actual operating frequency, supply voltage, I/O loading, ambient temperature, and board copper rather than assuming that the LQFP package is thermally constrained. The verified data provides an industrial temperature grade but no package thermal resistance, maximum junction temperature, or power dissipation. Use those manufacturer limits for the final thermal review and include a margin for surrounding enclosure temperature and power-supply variability.
Validate clock, reset, and communication timing with the actual external components and PCB layout. Place input filtering, pull components, and any oscillator parts according to the manufacturer reference design, and avoid long unprotected traces on externally accessible signals. The verified snippets do not identify oscillator requirements or communication peripherals, so the complete clock tree and signal-conditioning design must be based on the exact MC9S08RG32CFJ datasheet.
Compliance Information
LCSC's verified listing states RoHS-compatible. No verified statements were supplied for REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status.
