MC9S08SE4CWL - 8-Bit 20MHz 4KB MCU | NXP | SOIC-28
MPN: MC9S08SE4CWL ✗ Tapus ng BuhayMC9S08SE4CWL Ulas
A microcontroller is a programmable integrated circuit that combines a CPU core, memory, and peripherals in one device. The S08 family is positioned as a cost-effective 8-bit MCU platform, and the MC9S08SE4CWL is intended for embedded control tasks where modest processing capacity, compact packaging, and established Freescale/NXP S08 compatibility are useful. Its 20 MHz CPU enables basic control loops, digital I/O handling, timing functions, and communication-interface integration.
The key verified characteristics are the 8-bit CPU architecture, 20 MHz operating frequency, 4 KB flash, 4K x 8 organization, 28-pin SOIC package, and 5 V MCU classification. The related S08SE documentation describes compatibility with Freescale 5 V MCU portfolios and identifies the enhanced S08 core and 10 MHz internal bus. Detailed RAM, peripherals, electrical limits, and timing parameters were not included in the supplied verified data and are therefore marked as data needed rather than estimated.
Typical engineering uses include small industrial controllers, sensor-interface boards, keypad and display products, simple motor or relay-control systems, and compact consumer products that retain the S08 software ecosystem. Because the target is marked End of Life on the NXP product page, new designs should confirm availability, migration requirements, and any recommended replacement before committing to production.
For a new PCB, engineers should verify the exact pinout, oscillator requirements, supply limits, programming method, and peripheral assignments against the official NXP data sheet before layout. For an existing design, the 28-pin SOIC footprint is not sufficient proof of drop-in equivalence; pin functions, memory size, voltage requirements, clock behavior, and software compatibility must all be checked.
This page consolidates the verified distributor classification, package, memory, speed, lifecycle indication, and sourcing references with practical selection guidance. It does not infer unavailable electrical limits or claim unverified replacements.
Mga alternatibo na pwedeng ilagay na MC9S08SE4CWL — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok MC9S08SE4CWL (parehas na form factor at footprint) — pagkakaiba sa Package, Flash Memory, CPU Architecture, RAM, RoHS Status.
MC9S08SE4MWL
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →MC9S08SE8VWL
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →MC9S08QE4CWJ
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →MC9S08QE4CLC
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →MC9S08QG4CDNE
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →MC9S08SE4CWL Mga Pinakamataas na Rating at Electrical Characteristics
| CPU Architecture | 8-bit |
| CPU Family | S08 |
| Maximum CPU Frequency | 20 MHz |
| Internal Bus Frequency | 10 MHz |
| Flash Memory | 4 KB |
| Flash Organization | 4K x 8 |
| Supply Classification | 5 V MCU |
| Packhaging | 28-pin SOIC |
| Package Width | 7.50 mm |
| Uri ng Pagpapasok | Surface Mount |
| Core Type | Enhanced S08 core |
| Program Memory Type | Flash |
Gabay sa Pin Configuration ng MC9S08SE4CWL 7.50 mm
Pin configuration para sa MC9S08SE4CWL (7.50 mm package). Kasama sa digital IC na ito ang GPIO, mga communication interface (UART, SPI, I2C), at mga power pin. Sumangguni sa datasheet ng manufacturer para sa mga alternatibong function ng pin at mga opsyon sa configuration. Mahalaga para sa disenyo ng embedded system at PCB layout.
Wala ng detalyadong pinout data na magagamit para sa MC9S08SE4CWL.
Sumangguni sa datasheet para sa buong pin configuration.
Tipikal na mga Gamit
MC9S08SE4CWL ay nararapat para sa 6 aplikasyons: Small Industrial Control Panel, Sensor Interface Module, Simple Relay and Actuator Controller, Keypad and Display Product, Consumer Appliance Controller, Legacy System Maintenance.
Small Industrial Control Panel
The MC9S08SE4CWL fits compact control-panel tasks that use an 8-bit CPU for button scanning, state-machine control, relay sequencing, alarm handling, and basic supervisory logic. Its verified 20 MHz operating speed provides more scheduling headroom than a minimal low-clock controller, while 4 KB of flash constrains firmware to appropriately focused control code. The 28-pin SOIC package also supports conventional surface-mount assembly and rework. Before layout, verify every pin against the official data sheet because the supplied source confirms the package but not the pin map.
Inirekomenda
Sensor Interface Module
MC9S08SE4CWL can serve as the embedded controller in a small sensor-interface module that samples switches, digital sensors, or simple analog front-end signals and converts them into usable control data. The 8-bit architecture is appropriate for digital thresholding, debouncing, filtering, status encoding, and communication buffering rather than computationally intensive signal processing. The 20 MHz CPU allows responsive handling of multiple inputs, but the 4 KB flash limit requires a compact firmware plan. Pin multiplexing, ADC availability, and communication peripherals are not specified in the supplied data and must be verified.
Inirekomenda
Simple Relay and Actuator Controller
The MC9S08SE4CWL is suitable for controlling relays, solenoids, lamps, and other actuator loads in a compact embedded controller. Firmware can implement debouncing, interlocks, timing sequences, fault flags, and low-power standby behavior within the limited 4 KB flash budget. The 20 MHz S08 CPU provides useful timing margin for deterministic event handling, while the 28-pin SOIC format is convenient for panel-board assembly. External transistor or relay-driver hardware, flyback protection, and supply sizing remain board-level requirements and cannot be inferred from the distributor listing.
Inirekomenda
Keypad and Display Product
For a keypad, menu display, or human-interface product, MC9S08SE4CWL can manage scanning, debouncing, display updates, indicator states, and simple configuration storage. Its 8-bit architecture and 20 MHz frequency are well matched to these tasks, where deterministic real-time behavior is more important than high arithmetic throughput. The 4 KB flash constraint should be checked against display fonts, protocol handlers, and update logic before final firmware allocation. The supplied records do not identify LCD, serial, or storage peripherals, so interface selection requires official datasheet confirmation.
Inirekomenda
Consumer Appliance Controller
MC9S08SE4CWL can be evaluated for cost-sensitive consumer products that require a compact controller for mode selection, timing, safety interlocks, motor commands, and status indication. The S08 8-bit platform is consistent with simple embedded appliances and products that already support the Freescale/NXP S08 tool ecosystem. Its 20 MHz operation supports responsive state management, while the 4 KB flash footprint favors focused firmware. Because the device is identified as End of Life, appliance makers should weigh longevity, tooling continuity, and migration effort before committing to a new mass-market design.
Inirekomenda
Legacy System Maintenance
MC9S08SE4CWL is most defensible in legacy-system maintenance where an existing board, firmware toolchain, or approved component list already depends on the S08SE architecture. Maintaining the same MCU family can reduce schematic, layout, and software qualification effort compared with redesigning around a different architecture. The distributor references indicate continuing availability from some channels, but the NXP End of Life status requires a controlled procurement and obsolescence plan. Record the exact package, pinout, firmware revisions, and supply-chain risk before approving continued use.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for MC9S08SE4CWL — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | MC9S08SE4MWL | MC9S08SE8VWL | MC9S08QE4CWJ | MC9S08QE4CLC | MC9S08QG4CDNE |
|---|---|---|---|---|---|---|
| CPU Architecture | 8-bit S08 | 8-bit S08SE-family candidate; exact details require verification | 8-bit S08SE-family candidate; exact details require verification | 8-bit NXP MCU candidate; exact details require verification | 8-bit NXP MCU candidate; exact details require verification | 8-bit NXP MCU candidate; exact details require verification |
| Package | 28-pin SOIC | 28-pin SOIC candidate | 28-pin SOIC candidate | 28-pin SOIC candidate | 28-pin SOIC candidate | 28-pin SOIC candidate |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
Pangunahing mga Pagkakaiba
- Directly identified NXP S08SE-family 20 MHz and 4 KB configuration (kumpara saMC9S08SE4MWL)
- Reference sourcing information is available (kumpara saMC9S08SE8VWL)
- Established 28-pin SOIC integration target (kumpara saMC9S08QE4CWJ)
Talaan ng Disenyo
Do not finalize the power rail or decoupling network from the distributor summary alone. The verified data identifies the part as a 5 V MCU but does not provide input-voltage limits, current consumption, or manufacturer-recommended capacitor values. Check the official NXP data sheet and reference design for the exact supply range, bulk and high-frequency capacitor recommendations, pin power requirements, and startup behavior before PCB release.
Reserve a clean 28-pin SOIC footprint only after checking the exact package drawing, pin-one orientation, and pad dimensions. The supplied records confirm a 28-pin SOIC package and 7.50 mm width but do not provide the official land pattern or pin assignments. Verify all power, ground, reset, oscillator, programming, and peripheral pins against the NXP documentation; a matching package count does not guarantee a drop-in replacement.
Treat the NXP End of Life indication as a design constraint, not merely a stock notice. Confirm whether existing firmware, programmers, debuggers, and production test fixtures remain supported, and request the official discontinuance or replacement information. The available cross-reference results do not establish a manufacturer-confirmed pin-compatible substitute, so changing MPN without a complete pin, electrical, peripheral, and software review can create hidden production risks.
Impormasyon ng Pagsunod sa Kautusan
The supplied verified data does not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements. Compliance must be confirmed from the current NXP product documentation or supplier declarations.
