MC9S08RE16FJE - 8-Bit 8 MHz 16 KB MCU | NXP
MPN: MC9S08RE16FJE ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
MC9S08RE16FJE Overview
A microcontroller is a semiconductor device that integrates a processor core, program memory, data memory, peripherals, and input/output functions into one component. In the broader hierarchy, MC9S08RE16FJE is an MCU, an embedded controller, a programmable logic device, and a semiconductor. Its S08 architecture supports applications requiring low-cost deterministic control, while flash memory allows firmware to be programmed or updated without external program-memory devices.
The verified product information confirms an 8-bit processor core, 8 MHz maximum frequency, and 16 KB organized as 16K x 8 flash. The 32-LQFP package exposes the device in a surface-mount format suitable for conventional PCB assembly. Because the supplied material does not include RAM size, I/O count, voltage range, timer resources, ADC specifications, or package dimensions beyond the stated 7 x 7 mm format, those values must be checked against the manufacturer datasheet before final design release.
The S08R family is positioned as an upgrade path from Motorola 68HC05 and 68HC08 architectures. This makes MC9S08RE16FJE relevant for legacy-controller migrations where the replacement must preserve an established control architecture while increasing processing performance or peripheral capability. Firmware compatibility is not guaranteed merely because the application is similar; designers should verify startup behavior, memory organization, peripheral mapping, interrupt vectors, and package-level pin assignments.
Typical design uses include small motor controllers, sensor nodes, building controls, appliance controllers, keypad interfaces, LED systems, instrumentation, and embedded industrial modules. The 8 MHz clock and 16 KB flash footprint are most appropriate for compact control tasks where code size and deterministic peripheral access matter more than high-end processing performance.
Before purchasing or laying out a replacement board, confirm the exact pinout, electrical limits, clock requirements, reset behavior, and programming interface from the official NXP documentation. For obsolete or unavailable assemblies, use a controlled cross-reference process and validate any substitute with hardware and firmware tests rather than relying on a similar MPN alone. This page combines verified distributor observations, lifecycle information, and design cautions without inventing missing electrical data.
Drop-in alternatives for MC9S08RE16FJE — 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 MC9S08RE16FJE (same form factor and footprint) — differing in Package, Flash Memory, Lifecycle Status, Operating Temperature, Supply Voltage.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MC9S08AC16MFJE
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
Contact for price
View Datasheet →MC9S08AC16CFJE
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$6.95 / Unit
View Datasheet →MC9S08RE16PE
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MC9S08RE8CFJER
✅ Drop-In✓ In Stock
$4.18 / Unit
View Datasheet →MC9S08RG32CFJE
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →MC9S08AC60CFUE
✅ Drop-In✓ In Stock
$4.05 / Unit
View Datasheet →MC9S08RE16FJE Maximum Ratings & Electrical Characteristics
| Product Type | 8-bit microcontroller |
| Processor Core | HCS08 S08R |
| Maximum Clock Frequency | 8 MHz |
| Flash Memory | 16 KB (16K x 8) |
| Architecture | 8-bit |
| Package | 32-LQFP |
| Package Body Size | 7 x 7 mm |
| Mounting Type | Surface Mount |
| Product Series | S08 |
| Family | S08R |
| Application Category | Embedded microcontroller |
| Supply Status | No Longer Manufactured |
| Lead-Free Status | HF/PB-FREE |
MC9S08RE16FJE 7 x 7 mm Pin Configuration Guide
Pin configuration for MC9S08RE16FJE (7 x 7 mm 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 MC9S08RE16FJE.
Refer to the datasheet for full pin configuration.
Typical Applications
MC9S08RE16FJE is suitable for 6 applications: Appliance Control, Industrial Sensor Node, LED and Keypad Interface, Building Control Module, Motor and Relay Sequencer, Legacy 68HC08 Migration.
Appliance Control
MC9S08RE16FJE fits compact appliance-control boards that coordinate buttons, relays, LEDs, and sensors with a compact embedded-control design. Its verified 8-bit S08R core and 8 MHz maximum clock provide a straightforward control platform, while 16 KB flash constrains the firmware image and requires disciplined code organization. In a washing machine, oven, or thermostat-class design, the MCU can execute a state machine, scan inputs, drive outputs, and manage timing. Before layout, verify supply voltage, I/O levels, reset behavior, and the complete 32-LQFP pinout because those details are not supplied in the verified search data. The obsolete lifecycle status also makes procurement planning and firmware preservation important.
Recommended
Industrial Sensor Node
MC9S08RE16FJE can serve as the local controller for a small industrial sensor node when the node needs deterministic digital control and limited local processing. The verified 8 MHz maximum frequency supports ordinary sampling, threshold evaluation, status reporting, and actuator-control tasks, while 16 KB flash provides a defined program-memory budget. A practical implementation would read the sensor interface, filter or debounce the signal, update a local indicator, and communicate status through available serial or digital I/O. The supplied data does not confirm ADC, communication, or voltage specifications, so those interfaces must be selected only after reviewing the official datasheet. Use an appropriate regulator, decoupling, and protection network based on the verified electrical limits.
Recommended
LED and Keypad Interface
MC9S08RE16FJE is appropriate for keypad scanning, display control, status LEDs, and menu-driven user interfaces that do not require a high-performance processor. The 8-bit architecture and 8 MHz maximum clock are well matched to periodic scanning and finite-state-machine control, and the 16 KB flash budget is suitable for compact firmware when application code is organized carefully. In an instrumentation panel, the MCU could debounce keys, update LED indicators, generate tones, and manage a simple display sequence. Exact I/O count, pin multiplexing, timer availability, and operating voltage are not present in the supplied data, so the design must not assume an available peripheral or pin function until confirmed. Preserve the original firmware image and validate reset behavior during any migration.
Recommended
Building Control Module
MC9S08RE16FJE can be used in a small building-control module for supervising discrete inputs and controlling relays, indicators, or actuator signals. Its verified 16 KB flash and 8 MHz maximum clock support compact supervisory logic, while the S08R family is described as an upgrade path from older 68HC05 and 68HC08 architectures. Migration can be attractive for installed products because the newer family offers a path toward additional peripherals and performance, but compatibility must be checked at register, interrupt, timer, and pin level. The verified record does not include the device's operating voltage, RAM, I/O count, or communication features, so these must be confirmed from NXP documentation. In a maintenance or lifecycle-extension design, preserve the mechanical footprint and validate every legacy board revision.
Recommended
Motor and Relay Sequencer
MC9S08RE16FJE can implement a compact relay or small-motor sequencing controller when the application requires deterministic timing and modest logic rather than complex computation. The MCU can execute start, run, stop, timeout, fault, and interlock sequences while driving discrete outputs through suitable driver circuitry. Its 8 MHz maximum clock is more than adequate for many low-bandwidth control loops, but the 16 KB flash limit means timing tables and diagnostics should be kept compact. The supplied data does not identify motor-control peripherals, PWM resolution, output-driver ratings, or voltage limits, so external drivers and protection may be required. Validate worst-case timing, startup behavior, and output states before connecting the controller to inductive loads.
Recommended
Legacy 68HC08 Migration
MC9S08RE16FJE is relevant to migration programs moving from Motorola 68HC05 or 68HC08 designs because the verified S08R-family material describes an upward migration path with improved performance and peripheral capability. The migration can preserve a familiar control architecture while accommodating new product requirements, but it is not a guaranteed binary-compatible replacement. Engineers should compare clock initialization, memory maps, interrupt vectors, timer registers, port functions, reset sources, programming connectors, and electrical limits. The 8 MHz maximum clock and 16 KB flash are confirmed, while RAM and detailed peripheral data are not. Keep the original firmware and hardware available for side-by-side testing, and approve a replacement only after functional and timing validation.
Recommended
Recommended Products Summary
Engineering reference data for MC9S08RE16FJE — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MC9S08AC16MFJE | MC9S08AC16CFJE | MC9S08RE16PE | MC9S08RE8CFJE | MC9S08RG32CFJE |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
Key Differentiators
- Verified 16 KB flash configuration (vs MC9S08RE8CFJE)
- Same stated package and memory class (vs MC9S08AC16MFJE)
- Larger-memory family alternative (vs MC9S08RG32CFJE)
- Legacy migration context (vs MC68HC16Z1MAG16)
Design Notes
Do not approve a replacement based only on the 32-LQFP package and 8-bit descriptor. Confirm the complete pin assignment, supply limits, clock pins, reset behavior, programming signals, and peripheral multiplexing against the official MC9S08RE16FJE datasheet. A package-compatible-looking MCU can still fail because of different pin multiplexing, memory organization, timer behavior, or firmware startup assumptions.
Design the power tree and decoupling around the exact operating-voltage and absolute-maximum limits in the manufacturer documentation. The verified data does not include the MC9S08RE16FJE voltage range, so do not derive regulator selection from the 8 MHz clock or the S08 family name. Place bulk and high-frequency decoupling close to the device and validate startup, reset, and brownout behavior on the assembled board.
Preserve the original land pattern and programming access when maintaining an installed product. Route reset and clock signals away from noisy switching nodes, provide clean ground returns, and keep unused pins terminated according to the datasheet. For a legacy 68HC05 or 68HC08 migration, compare the mechanical footprint and every signal function rather than relying only on the 32-LQFP outline.
The verified source identifies MC9S08RE16FJE as no longer manufactured, so procurement risk is a design issue. Record the manufacturer notice, distributor lot information, date code, packaging condition, and serialized inventory at purchase. Before production use, archive the datasheet, firmware image, test fixtures, and board revision so the product can be maintained if future stock becomes unavailable.
Compliance Information
The verified distributor description identifies MC9S08RE16FJE as HF/PB-FREE. Explicit RoHS, REACH, AEC-Q100, halogen-free, and conflict-minerals declarations were not supplied, so those statuses remain unknown.