MC9S08RD8PE - 8MHz 8KB Flash 8-Bit MCU | NXP
MPN： MC9S08RD8PE ✓ 啟用中MC9S08RD8PE 概覽
A microcontroller is a programmable integrated circuit containing a processor core, memory, and peripheral functions on one semiconductor die. The MC9S08RD8PE belongs to the MCU hierarchy: embedded controller, 8-bit microcontroller, S08-family device, and embedded processing semiconductor. It is intended for applications that require modest computation, deterministic peripheral control, and economical integration without a high-pin-count surface-mount package.
Key device characteristics include 8 KB of flash program memory for firmware storage, 1 KB of RAM for working data, 23 I/O pins for external interfaces, and a maximum stated speed of 8 MHz. The oscillator type is internal, reducing the number of required external clock components in straightforward designs. Multiple power-management modes and low-power technology support energy-conscious operation in portable products and handheld instruments.
The HCS08 CPU core provides the basic execution environment for embedded control firmware. Flash memory permits in-system firmware storage, while the 1 KB RAM accommodates variables, stacks, and short-term application data. The 23 available I/O pins allow the device to connect sensors, switches, indicators, actuators, communication devices, and human-interface components. Exact peripheral assignments, interrupt behavior, and electrical limits must be confirmed against the manufacturer datasheet before layout or firmware is finalized.
Typical applications include universal remote controls, handheld instruments, and portable consumer devices. The same general architecture can suit simple appliance controls, battery-operated products, sensor nodes, and compact industrial interfaces when the application can operate with an 8-bit core, 8 KB of program memory, and 1 KB of RAM. These uses benefit from the low component count and straightforward embedded programming model.
Designers should confirm the exact 28-DIP pin assignments, power requirements, clock configuration, and programming interface in the manufacturer datasheet. A 28-pin through-hole package is useful for prototypes, educational systems, and low-volume products, but it consumes more board area than a comparable surface-mount package. Production designs should also verify current sourcing, lifecycle commitments, and programming-tool support with NXP or an authorized distributor.
This page consolidates the verified distributor specifications, package information, sourcing details, selection guidance, and practical integration considerations for the MC9S08RD8PE. It also distinguishes verified facts from specifications that still require confirmation from the official datasheet, helping engineers avoid unsupported assumptions during design-in and procurement.
直接替換替代品，適用於 MC9S08RD8PE — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此產品無可直接替換的替代品。
申請替代品MC9S08RD8PE 最大額定值與電氣特性
| Product Type | 8-bit HCS08 microcontroller |
| Maximum Clock Speed | 8 MHz |
| Program Memory Size | 8 KB (8K x 8) flash |
| RAM Size | 1 KB (1K x 8) |
| Number of I/O Pins | 23 pins |
| CPU Core | 8-bit HCS08 |
| Oscillator Type | Internal |
| Package Type | 28-pin DIP (0.600 inch, 15.24 mm) |
| Packaging | Tube |
| Power Management | Multiple power management modes |
| Low-Power Technology | Supported |
| Typical Application 1 | Universal remote control |
| Typical Application 2 | Handheld instrument |
| Typical Application 3 | Portable consumer device |
| Manufacturer | NXP Semiconductors |
MC9S08RD8PE 28-pin dip (0.600 inch, 15.24 mm) 腳位配置指南
MC9S08RD8PE（28-pin dip (0.600 inch, 15.24 mm) 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： MC9S08RD8PE.
請參閱 資料表 以查看完整腳位配置。
典型應用
MC9S08RD8PE 適用於 6 應用s: Universal Remote Controls, Handheld Instruments, Portable Consumer Devices, Battery-Operated Sensor Interfaces, Appliance and Equipment Control, Embedded Control Prototypes.
Universal Remote Controls
The MC9S08RD8PE fits a universal remote because its 8-bit HCS08 core can decode button inputs, manage indicator feedback, and control an infrared or wireless transmitter while flash stores firmware and RAM holds working variables. The verified device provides 23 I/O pins, an 8 MHz maximum clock, and low-power technology for battery-operated equipment. The 28-DIP package also makes the MCU practical for prototype and low-volume remote-control assemblies. Before finalizing the design, confirm the exact timer, I/O, oscillator, and low-mode specifications in the datasheet and budget both code size and RAM for the selected protocol stack.
推薦
Handheld Instruments
MC9S08RD8PE is suitable for a compact handheld instrument that combines local controls, a display or status indicator, and simple sensor acquisition. Its 23 I/O pins provide connections for switches, digital sensors, and output signals, while the 8 MHz HCS08 core executes control logic and the 1 KB RAM supports immediate working data. Low-power technology and multiple power-management modes are important when the instrument operates intermittently from a battery. The 28-DIP format accelerates breadboard and through-hole prototyping, although production designers should verify the exact analog functions, current consumption, and operating-temperature limits before selecting the final device.
推薦
Portable Consumer Devices
The MC9S08RD8PE can serve as the embedded controller in a portable consumer product that needs deterministic I/O control more than high computational throughput. Its 8 KB flash stores application firmware, 1 KB RAM provides working storage, and 23 I/O pins support buttons, LEDs, sensors, and actuators. The internal oscillator reduces external clock-component requirements, while low-power features can assist battery-conscious operation. Selection should be based on a complete memory and I/O budget because the verified data does not establish the availability of advanced connectivity or large data buffers; those functions may require additional companion circuitry.
推薦
Battery-Operated Sensor Interfaces
MC9S08RD8PE is appropriate for a small sensor interface that samples digital inputs, evaluates control logic, and drives an indicator or actuator. The 8-bit HCS08 core and 8 MHz clock provide deterministic response for simple acquisition and state-machine tasks, while 1 KB RAM limits the amount of live data that can be buffered. Its low-power technology and multiple power-management modes are valuable when the assembly spends substantial time idle between sensor readings. The complete duty-cycle energy budget must use verified sleep and active-current values, which were not provided, so engineers should measure the expected firmware workload and confirm peripheral wake-up behavior in the manufacturer documentation.
推薦
Appliance and Equipment Control
MC9S08RD8PE can implement the central control logic for a compact appliance or equipment controller that coordinates switches, indicators, motors, or relays. Its 23 I/O pins provide a practical interface budget, while 8 KB of flash accommodates fixed control firmware and 1 KB RAM supports scheduling and short-lived state. The internal oscillator simplifies the clock architecture for designs that do not require a precision time base. Because the supplied results do not confirm PWM, timer, ADC, or watchdog resources, each required peripheral must be mapped against the verified datasheet before schematic capture; unsuitable assumptions could otherwise leave the controller without a necessary timing or conversion function.
推薦
Embedded Control Prototypes
MC9S08RD8PE is well suited to educational, evaluation, and proof-of-concept boards because it combines an 8 MHz HCS08 core, 8 KB flash, 1 KB RAM, and 23 I/O pins in a straightforward 28-DIP package. The through-hole format supports conventional breadboards, perfboards, and sockets without requiring a fine-pitch surface-mount assembly process. Tube packaging also aligns with small prototype quantities. Developers should plan the development toolchain and programming interface from the official documentation, retain socket space for field replacement, and verify supply voltage and exposed-pin functions before powering the first board because those electrical details were not included in the supplied search snippets.
推薦
推薦產品摘要
工程參考資料，適用於 MC9S08RD8PE — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 |
|---|---|
| Brand | NXP Semiconductors |
| Package | 28-pin DIP (0.600 inch, 15.24 mm) |
| CPU Core | 8-bit HCS08 |
| Maximum Clock Speed | 8 MHz |
| Program Memory | 8 KB (8K x 8) flash |
| RAM | 1 KB (1K x 8) |
| Number of I/O Pins | 23 pins |
| Oscillator Type | Internal |
| Packaging | Tube |
主要差異化特點
- Established 8-bit S08 control platform (對比Generic 8-bit MCU alternatives)
- Through-hole package for accessible prototyping (對比Surface-mount microcontroller alternatives)
- Substantial I/O availability for the memory class (對比Lower-pin-count 8-bit MCUs)
設計說明
Confirm the supply range, absolute maximum ratings, and active and low-power current from the official datasheet before designing the power tree. The verified results establish an internal oscillator and multiple power-management modes but do not provide current values. A practical low-power design should calculate the average consumption from measured active time, idle time, and wake-up intervals rather than using the maximum 8 MHz clock frequency as a proxy for power demand.
Reserve the full 28-pin DIP footprint and maintain access to every I/O, power, ground, reset, and programming-related lead required by the final pinout. The verified package is a 0.600 inch, 15.24 mm row-spaced DIP, but the supplied snippets do not expose the complete pin table. Do not assign PCB nets or connectors until those functions are confirmed directly from the controlled NXP datasheet.
Do not treat the MC9S08RD8 family designation as proof that every ordering code is a drop-in replacement for MC9S08RD8PE. Package suffix, temperature grade, memory configuration, and pin multiplexing can differ between ordering codes. Verify the exact MPN, package drawing, pinout, clock limits, and programming compatibility before changing a released BOM or placing a substitute order.
For a through-hole design, place the MCU where the DIP socket remains accessible and provide unobstructed clearance around pin 1. Route sensitive inputs away from adjacent switching-node traces and keep the ground-return path short; however, the verified data does not specify analog, high-speed, or communication interfaces. Final layout values should be derived from the actual signals, clock requirements, and electrical characteristics in the official datasheet.
合規資訊
No verified environmental, material, or automotive-qualification declarations were present in the supplied web data. Obtain current compliance documentation from NXP or an authorized distributor.
