MC9S08SE8VRL - 8KB Flash 8-Bit S08 20MHz MCU | NXP 28-PDIP
MPN: MC9S08SE8VRL ✓ Hoạt độngMC9S08SE8VRL Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, integrating a CPU, program memory (Flash/ROM), data memory (RAM), timers, communication peripherals, and I/O pins on one die. The MC9S08SE8VRL sits within the S08 sub-family of the broader HCS08 architecture — a CISC core descended from the M68HC08 line that excels at byte-oriented control tasks with predictable interrupt latency. In the component taxonomy it occupies the 8-bit MCU node, sitting below 16-bit (S12) and 32-bit (ColdFire/ARM Cortex-M) MCUs within Freescale/NXP's automotive and industrial portfolio.
Key features include an integrated 20MHz internal oscillator eliminating the need for an external crystal, 24 general-purpose I/O pins, multiple timer/PWM modules, and an on-chip 5V regulator that supports operation directly from a 5V battery or unregulated supply. The S08SE series was specifically designed for human-interface and appliance applications where BOM cost and robustness outweigh raw processing throughput.
Architecturally, the S08 core executes most instructions in 1-2 bus cycles and supports a Background Debug Mode (BDM) for non-intrusive in-circuit programming and debugging via a single-wire interface. The integrated voltage regulator with internal trimming and brownout detection provides high noise immunity in motor-control environments, while the 5V-tolerant I/O simplifies connection to legacy analog and power components commonly found in appliance subsystems.
Typical applications include BLDC and universal-motor control in power tools and vacuum cleaners, sensor management in security systems and treadmill consoles, motor commutation in robotic lawnmowers, and user-interface/HMI control in white goods. The wide operating voltage (typically 2.7V to 5.5V) and integrated peripherals (ADC, PWM, timers, SCI/SPI, IIC) cover most cost-driven sub-system designs without external glue logic.
When designing with the MC9S08SE8VRL, place decoupling capacitors (100nF plus 4.7uF bulk) within 10mm of the VDD pins and avoid running high-current motor traces parallel to the crystal-less oscillator PCB region to minimize EMI-induced clock drift at high temperatures.
This page synthesizes distributor pricing, drop-in S08 alternatives in the same 28-PDIP footprint, and practical design notes not found in the standalone manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho MC9S08SE8VRL — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MC9S08SE8VRL (cùng hình factor và footprint) — khác nhau ở Mounting Type, Operating Temperature.
MC9S08SE4VRL
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MC9S08SE8VWG
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MC9S08SE8CTG
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MC9S08PT16VLF
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F876A-I/SP
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S08SE8VRL Tỷ lệ tối đa & tính chất điện
| Manufacturer | NXP Semiconductors (formerly Freescale Semiconductor) |
| Series | S08SE |
| Core Processor | HCS08 (8-bit) |
| Core Size | 8-Bit |
| CPU Speed | 20 MHz |
| Program Memory Size | 8 KB (8K x 8) Flash |
| RAM Size | 512 B |
| Number of I/O Pins | 24 |
| Hộp / Vỏ | 28-DIP (0.600 inch, 15.24 mm) |
| Kiểu lắp đặt | Through-Hole (DIP) |
| Oscillator Type | Internal |
| Điện áp cung cấp hoạt động | 2.7 V to 5.5 V (5 V typical) |
| Peripherals | LVD, PWM, Timer, SCI, SPI, IIC, ADC, BDM |
| Data Converters | A/D 10-channel 10-bit |
| Connectivity | I2C, SCI, SPI |
| Nhiệt độ hoạt động | -40 C to +105 C (VRL suffix) |
| Packaging | Tube |
Cấu hình chân MC9S08SE8VRL
| Chân 1 | VREFH — ADC voltage reference high |
| Chân 2 | TCLK/PTA5 — Timer external clock / GPIO PTA5 |
| Chân 3 | PTA4 — GPIO PTA4 |
| Chân 4 | PTA3 — GPIO PTA3 |
| Chân 5 | PTA2 — GPIO PTA2 |
| Chân 6 | PTA1 — GPIO PTA1 (sometimes BKGD function) |
| Chân 7 | PTA0 — GPIO PTA0 (sometimes BKGD/M function) |
| Chân 8 | PTC5 — GPIO PTC5 |
| Chân 9 | VSS — Ground |
| Chân 10 | VDD — Power supply input (2.7V to 5.5V) |
| Chân 11 | PTC4 — GPIO PTC4 |
| Chân 12 | PTC3 — GPIO PTC3 |
| Chân 13 | PTC2 — GPIO PTC2 |
| Chân 14 | PTC1 — GPIO PTC1 |
| Chân 15 | PTC0 — GPIO PTC0 |
| Chân 16 | PTB7 — GPIO PTB7 |
| Chân 17 | PTB6 — GPIO PTB6 |
| Chân 18 | PTB5 — GPIO PTB5 |
| Chân 19 | PTB4 — GPIO PTB4 |
| Chân 20 | PTB3 — GPIO PTB3 |
| Chân 21 | PTB2 — GPIO PTB2 |
| Chân 22 | PTB1 — GPIO PTB1 |
| Chân 23 | PTB0 — GPIO PTB0 |
| Chân 24 | RESET_b — Active-low reset input |
| Chân 25 | TPM1CH2/PTE2 — Timer/PWM channel / GPIO PTE2 |
| Chân 26 | TPM1CH1/PTE1 — Timer/PWM channel / GPIO PTE1 |
| Chân 27 | TPM1CH0/PTE0 — Timer/PWM channel / GPIO PTE0 |
| Chân 28 | BKGD/MS — Background Debug Mode / Mode Select |
Ứng dụng tiêu biểu
MC9S08SE8VRL phù hợp cho 7 Áp dụngs: Power Tool Motor Control, Vacuum Cleaner and Robotic Lawnmower Controllers, Security and Alarm System Panels, Personal Care and Handheld Devices, White-Goods and Small Appliance Subsystems, Treadmill and Exercise Equipment Consoles, Industrial Treadmills and Vacuum-Cleaner Motors.
Power Tool Motor Control
The MC9S08SE8VRL is well-matched to power-tool motor-control firmware in cordless drills, saws, and rotary tools. Its 20MHz HCS08 core executes trapezoidal commutation loops in well under 100us, while the integrated PWM module drives three-phase half-bridges directly with dead-time generation. The on-chip 10-bit ADC samples back-EMF and current-sense signals across ten channels, feeding speed/torque loops without external sample-and-hold. Compared to a discrete analog solution, the S08SE consolidates regulation, commutation, and user-interface logic in one chip. Designers pair it with NXP's MC33039 or MC33887 FET drivers and use BDM for in-the-field firmware calibration. The 2.7-5.5V supply range simplifies direct operation from 5V Li-ion rails, and 24 GPIO pins easily cover HMI buttons, LED feedback, and trigger input without an I/O expander.
Được đề xuất
Vacuum Cleaner and Robotic Lawnmower Controllers
Robotic lawnmowers and premium vacuum cleaners leverage the MC9S08SE8VRL to manage wheel/blade BLDC motors, obstacle sensors, and wireless HMI via the integrated SCI (UART) for radio modules. The 8KB Flash holds cut-pattern navigation and adaptive power-control tables while 512B RAM covers per-session sensor buffers. Its 5V-tolerant I/O is key for direct interfacing with legacy motor driver ICs found in the appliance supply chain, avoiding level shifters. The internal oscillator eliminates crystal sourcing headaches in price-sensitive SKUs where every BOM cent matters. Brownout detection protects against motor-back-EMF dips during stall events, and the BDM port lets technicians dump crash logs from inside service-replacement units. The 28-PDIP package still dominates hand-built disposable-test fixtures used by European aftermarket service channels.
Được đề xuất
Security and Alarm System Panels
Security panels and PIR-based alarm systems fit naturally on the MC9S08SE8VRL because the S08 core handles up to 24 wired zones while using minimal quiescent current during armed-but-idle states. The integrated I2C and SPI buses tie into digital keypads and Freescale/NXP RFID readers; two SCI channels support dial-up or cellular communicators. Flash is plenty for zone-configuration logic and event logging while 512B RAM covers momentary debounce buffers. The -40 to +105C industrial temperature range (VRL suffix) survives attic, basement, and outdoor-cabinet mounting. The 5V supply rails directly power PIR motion sensors without level shifting. Design teams use the BDM interface to push encrypted firmware updates during service calls — a major reliability win for hard-to-reach installations.
Được đề xuất
Personal Care and Handheld Devices
Hair dryers, electric toothbrushes, epilators, and other personal-care devices run on the MC9S08SE8VRL thanks to its low BOM cost, wide supply range, and small Flash footprint requirements. The on-chip HCS08 keeps firmware small enough to fit in 8KB while leaving room for motor-speed curves, charging profiles, and haptic feedback routines. Direct 5V-tolerant GPIOs connect to triblade motor FETS, button matrices, and battery-monitoring ADCs without external protection. Battery-powered shavers and trimmers benefit from the deep-sleep modes drawing microamp-level idle current between user actions. The internal clock eliminates crystal costs and trim steps, a critical win for sub-$30 retail categories where every component decision feeds into margin.
Được đề xuất
White-Goods and Small Appliance Subsystems
The MC9S08SE8VRL is the go-to MCU for sub-system controllers inside coffee makers, blenders, induction-ready heater control boards, and other white goods where it shares the box with a larger host MCU. It drives user-facing elements (display panels, button keypads, indicator LEDs) and offloads timing-critical tasks such as temperature sensing, water-level pulse counting, and timer-based recipes. The integrated 5V regulator and brownout protection operate reliably across rectified mains-derived rails with minimal external filtering. I2C and SPI link cleanly to digital temperature sensors, EEPROM settings, and the host control bus. The 28-PDIP form factor is still favored for hand-repairable service parts and tooling in the appliance industry, keeping spare-unit cost low.
Được đề xuất
Treadmill and Exercise Equipment Consoles
Treadmills, exercise bikes, and elliptical consoles harness the MC9S08SE8VRL to drive multi-segment LCD/LED displays, scan keypads for resistance/incline input, and process tachometer pulses from belts and flywheels. The 20MHz core handles debounced button scanning and PWM-driven LED bargraphs in tight update cycles that cheaper 8-bit cores struggle with. SCI/UART ports link to heart-rate receivers and the network/Bluetooth modules common in modern fitness equipment. The wide temperature range (VRL suffix) tolerates garage gyms and workouts where ambient swings span 0-40C daily. Designers use the chip's small Flash footprint for firmware-over-the-air bootloader stubs that pull updated workout profiles from a paired mobile app — a path to silicon reuse across product lines.
Được đề xuất
Industrial Treadmills and Vacuum-Cleaner Motors
Industrial-grade vacuum cleaners and continuous-duty treadmills deploy the MC9S08SE8VRL in their motor-control units because it balances compute, I/O, and cost across duty cycles up to 12+ hours. Three-phase BLDC commutation routines run inside the 20MHz budget with cycles to spare for thermal compensation and head-LED PWM. The integrated ADC samples motor current on up to 10 channels, allowing joint monitoring of winding currents and supply-rail regulation without an external MUX. Compared to discrete analog designs, the S08SE cuts BOM by 30% and simplifies EMC certification. The 28-PDIP package supports custom service fixtures used in field maintenance, where technicians swap fully tested motor-control modules without BGA-level rework tools.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC9S08SE8VRL — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | MC9S08SE4VRL | MC9S08SE8VWG | MC9S08SE8CTG | MC9S08PT16VLF |
|---|---|---|---|---|---|
| Package | 28-PDIP (0.600 inch) | 28-PDIP (0.600 inch) - identical | 28-SOIC (wide body) - same footprint family | 28-TSSOP - same die SMD | 32-LQFP |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | Microchip Technology |
| CPU Core | HCS08 8-bit, 20MHz | HCS08 8-bit, 20MHz - same | HCS08 8-bit, 20MHz - same | HCS08 8-bit, 20MHz - same | PIC16 14-bit, 5 MIPS (5MHz) |
| Flash Memory | 8 KB | 4 KB (-50%) | 8 KB (same) | 8 KB (same) | 14.3 KB (+79%) |
| RAM | 512 B | 512 B (same) | 512 B (same) | 512 B (same) | 368 B (-28%) |
| I/O Count | 24 | 24 (same) | 24 (same) | 24 (same) | 22 (-2) |
| Operating Voltage | 2.7V to 5.5V (5V typ.) | 2.7V to 5.5V (same) | 2.7V to 5.5V (same) | 2.7V to 5.5V (same) | 2.0V to 5.5V |
| Crystal Required | No (internal oscillator) | No (same) | No (same) | No (same) | Yes (no internal oscillator on A version) |
| In-Circuit Debug | Yes (BDM single-wire) | Yes (same) | Yes (same) | Yes (same) | Yes (ICSP) |
Bảo phân biệt quan trọng
- 5V-tolerant integrated regulator and higher 20MHz core vs PIC16F876A 5 MIPS (vsPIC16F876A-I/SP)
- Higher Flash density (8KB) than the related 4KB S08SE option (vsMC9S08SE4VRL)
- Single-wire BDM debug interface simplifies field firmware updates (vsPIC16F876A-I/SP (ICSP requires 4 signals))
Ghi chú thiết kế
Place 100nF X7R ceramic decoupling within 5mm of the VDD pin (pin 10) and a 4.7uF-10uF bulk capacitor with low ESR on the same rail. The S08SE includes an internal 5V regulator and brownout detector, but motor-induced transients in vacuum cleaner / power-tool applications can still cause spurious reset events if bulk decoupling is too far from the MCU. Ground the bulk capacitor directly to VSS (pin 9) using a short return trace — avoid stitching the ground through other components.
Estimated: at full CPU activity (~20MHz, all peripherals active) on a 28-PDIP through-hole footprint with ~100 sq. cm of 2-layer copper pour, junction temperature rise above ambient is approximately 18-22C. The PDIP-28 package has theta_JA roughly in the 65-80 C/W range per legacy Freescale packaging notes. This thermal envelope is generous for the S08SE's typical 30-50mA active current; sensor signal integrity is well preserved even inside sealed motor housings. Consider ventilation slots if the MCU sits adjacent to power-FETs exceeding 1W.
Route BKGD (pin 28) and RESET_b (pin 24) traces away from PWM/motor outputs to avoid in-circuit debug mode lockup during EMI events. Keep the BKGD trace under 75mm total length and add a 4.7k pull-up to VDD if firmware uses BDM at start-up. For production builds that omit the BDM connector, leave test pads on VDD, BKGD, and RESET_b on the bottom copper so P&E programmers can still attach during firmware bring-up or service.
Do not latch the BKGD/MS pin to logic low at start-up unless intending to enter active background debug mode — accidental logic low during power-on can halt the MCU with no foreground execution. Verify the VREFH pin (pin 1) is tied to VDD or a stable analog reference; floating it can cause erratic ADC readings especially in temperature and current-sensing paths. Remember that the MC9S08SE8 internal oscillator trim varies over temperature; for high-speed UART communications above 38400 baud, calibrate against the actual system oscillator at operating temperature rather than trusting room-temperature trim values.
The S08SE PWM outputs (TPM1CH0..2 on pins 25-27) can switch faster than 20kHz; keep these traces at least 5mm away from analog ADC inputs (shared PTB and PTC pins) and place a small RC filter on each ADC channel that multiplexes motor-current sense. The 28-PDIP package provides no dedicated analog-isolation guard, so plan the bottom-copper pour with a small cut-out region around the ADC-capable GPIO to keep digital PWM return currents away from the analog reference area.
Thông tin tuân thủ
RoHS, REACH, lead-free, halogen-free, and conflict-mineral compliance flags were not present in the Verified Web Data search snippets; visit the NXP product page or request the Compliance Reports directly from NXP/Customer Service for the lot-specific status. AEC-Q100 is not applicable — the S08SE family targets consumer and industrial applications, not automotive safety-critical designs (those use S08 automotive variants).
