MC9S08DV32MLH - 40MHz 32KB 8-Bit MCU | NXP
MPN： MC9S08DV32MLH ✓ 啟用中MC9S08DV32MLH 概覽
A microcontroller is a compact embedded-control device that integrates a processor core, nonvolatile program memory, data memory, peripherals, and input/output interfaces on one semiconductor package. The HCS08 architecture belongs to the broader 8-bit microcontroller hierarchy. Compared with larger 16-bit or 32-bit processors, it targets economical control tasks requiring deterministic peripheral access, low system complexity, and embedded communication rather than intensive computation.
The verified feature set emphasizes 32 KB of flash organized as 32K x 8, 2K x 8 RAM, 53 I/O pins, and a maximum listed CPU frequency of 40 MHz. The ADC provides 16 channels, 12-bit resolution, and a stated 2.5-second conversion time. Connectivity includes CAN, I2C, SPI, and two SCI interfaces. These resources support mixed-sensor, actuator, communications, and control designs without requiring several discrete interface devices.
One source describes a 20-MHz operating rate and 33,792 bytes of flash, while distributor records identify the same device as a 40-MHz S08 with 32 KB of flash. For design use, the ordering-code documentation and manufacturer datasheet should control clock configuration, conversion timing, memory limits, and electrical limits where aggregated listings differ. The external oscillator requirement identified in the verified data also makes clock-source planning essential.
Typical uses include industrial control modules, automotive body or vehicle electronics, CAN-connected equipment, sensor acquisition systems, communications controllers, and compact embedded products. The broad peripheral mix suits designs that need local I/O, serial communications, and analog measurement in one 64-pin device. Software should account for the 20-MHz bus statement when configuring bus timing and peripheral clock expectations.
Designers should verify oscillator circuitry, decoupling, reset behavior, unused-pin treatment, and peripheral pin multiplexing against the official datasheet before release. PCB routing should keep sensitive analog and communication paths controlled, especially when the ADC, CAN, SPI, or SCI interfaces are active. Firmware should use the documented clock modes rather than assuming that a 40-MHz CPU rate applies to every peripheral clock domain.
This page consolidates verified distributor specifications, package and memory details, sourcing information, technical context, and design cautions. It distinguishes directly verified facts from unresolved parameters and avoids treating generic cross-reference results as proof of pin-to-pin replacement.
直接替換替代品，適用於 MC9S08DV32MLH — 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。
此系列的變體
與下列產品可直接替換的同系列型號： MC9S08DV32MLH （相同外形與佔位） — 差異在於 Package, Product Type, RAM Size, Communication Interfaces, Connectivity.
MC9S08DV60MLH
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →MC9S08DN32MLF
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →MC9S08DV128F2CLFR
✅ 直接替換📋 參考替代品（不在目錄中）
MC9S08AW48CFGER
✅ 直接替換聯絡詢價
查看資料表 →MC9S08AW32CFUE
✅ 直接替換聯絡詢價
查看資料表 →MC9S08DV32MLH 最大額定值與電氣特性
| Product Type | 8-bit HCS08 microcontroller |
| CPU Maximum Frequency | 40 MHz |
| Bus Frequency | 20 MHz |
| Program Memory Size | 32 KB (32K x 8) |
| Flash Memory | 33792 bytes |
| RAM Size | 2 KB (2K x 8) |
| Number of I/O | 53 |
| ADC Resolution | 12-bit |
| ADC Channels | 16 channels |
| ADC Conversion Time | 2.5 s |
| Communication Interfaces | CAN, I2C, SPI, 2 SCI |
| Interrupt/Reset Sources | Up to 32 sources |
| Oscillator Type | External |
| Architecture | HCS08 |
| Process Technology | CMOS |
| 封裝 | 64-LQFP, 10 mm x 10 mm |
| 安裝類型 | Surface mount |
| Terminal Count | 64 terminals |
| Packaging | Tray |
| Temperature Grade | Automotive |
MC9S08DV32MLH 64-lqfp, 10 mm x 10 mm 腳位配置指南
MC9S08DV32MLH（64-lqfp, 10 mm x 10 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： MC9S08DV32MLH.
請參閱 資料表 以查看完整腳位配置。
典型應用
MC9S08DV32MLH 適用於 6 應用s: Automotive CAN Control, Industrial Sensor Acquisition, CAN Network Gateway, Vehicle Body Electronics, Serial Communication Controller, Compact Embedded Control System.
Automotive CAN Control
MC9S08DV32MLH fits a compact vehicle control module that needs local I/O, CAN communication, and mixed analog conditioning in one MCU. The verified 53 I/O pins provide ample external signal distribution, while the integrated CAN interface avoids a separate protocol controller. The 32 KB flash and 2 KB RAM must be allocated carefully for protocol handling, diagnostics, calibration, and application logic. The external oscillator requirement means the vehicle module must include a properly designed clock source and startup path. The listed automotive temperature grade is a useful selection signal, but final suitability requires confirmation of voltage limits, temperature limits, qualification status, and CAN electrical-transceiver requirements.
推薦
Industrial Sensor Acquisition
The MC9S08DV32MLH is appropriate for an industrial acquisition module that gathers multiple analog inputs and coordinates actuators or reports through serial links. Its verified 16-channel, 12-bit ADC provides the measurement framework for pressure, temperature, position, or process-control signals, while 53 I/O pins support discrete inputs and outputs. I2C and SPI can connect sensors and converters, and SCI provides a host or service interface. Designers should verify the stated 2.5-second conversion time against the actual sampling plan, because the application requirement must be compared with the official ADC timing and operating conditions rather than relying on a distributor snippet alone.
推薦
CAN Network Gateway
MC9S08DV32MLH can serve as the local controller in a CAN gateway or industrial communication hub that must translate or supervise data between a CAN segment and another embedded interface. The device combines CAN, I2C, SPI, and two SCI interfaces, allowing a single MCU to manage several peripheral classes while retaining 53 I/O lines. Firmware should validate bus timing, arbitration behavior, error handling, and watchdog strategy using the manufacturer documentation. The 32 KB flash and 2 KB RAM provide useful embedded capacity, but buffering and protocol tables must be sized before the gateway design is committed. A separate CAN transceiver is still required at the physical network interface.
推薦
Vehicle Body Electronics
MC9S08DV32MLH can be evaluated for body-control tasks such as switch input consolidation, lamp or relay control, diagnostic communication, and actuator sequencing. Its 53 I/O and 64-LQFP package offer more connection density than many compact controllers, while the 40 MHz listed CPU capability supports responsive event handling. The verified automotive temperature-grade description supports preliminary selection, but it does not by itself establish full automotive qualification. Engineers must verify transient protection, operating voltage, wake behavior, reset logic, and thermal limits against the official device documentation. Production designs should also include suitable protection networks and a controlled external clock implementation.
推薦
Serial Communication Controller
The MC9S08DV32MLH is suitable for a communications controller that must coordinate multiple serial devices while retaining local control I/O. Two SCI channels can support independent UART-style links, while I2C and SPI provide alternatives for sensors, memory, converters, and display or storage peripherals. The 40 MHz HCS08 CPU listing is useful for event-driven protocol work, but the supplied source also states a 20-MHz bus, so firmware timing should use the documented clock tree rather than assuming that every peripheral runs at 40 MHz. Pin multiplexing, electrical standards, and transceiver selection must be finalized from the official pinout.
推薦
Compact Embedded Control System
MC9S08DV32MLH works well for a compact embedded controller that coordinates sensors, outputs, communications, and timing functions without a higher-performance processor. The HCS08 architecture is aimed at embedded control, while the verified 32 KB flash and 2 KB RAM provide resources for moderate application code and data. The 16-channel ADC supports monitoring, and the external oscillator arrangement allows system-level clock planning. Firmware should include watchdog handling, reset-cause diagnosis, brownout-aware startup, and peripheral shutdown paths. Before schematic release, verify the complete pin multiplex map, package dimensions, decoupling requirements, and electrical limits from the official documentation.
推薦
推薦產品摘要
工程參考資料，適用於 MC9S08DV32MLH — 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 | MC9S08DV60MLH | MC9S08DN32MLF | MC9S08DV128F2CLFR | MC9S08AW48CFGER | MC9S08AW32CFUE |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 64-LQFP, 10 mm x 10 mm | 64-LQFP; compatibility requires verification | 64-LQFP candidate; compatibility requires verification | 48-LQFP; not verified as same package | 48-LQFP; not verified as same package | 32-LQFP; not verified as same package |
主要差異化特點
- Broad integrated connectivity in one MCU (對比MC9S08AW32CFUE)
- Higher confirmed I/O density (對比MC9S08AW48CFGER)
- Confirmed 12-bit analog acquisition capability (對比MC9S08DV60MLH)
設計說明
The verified data does not include supply-voltage limits or current consumption, so do not finalize the power tree from the snippets. Obtain the manufacturer electrical specifications, then place the required bypass capacitors at the pins identified by the reference design. Separate noisy digital return paths from sensitive analog returns where practical, and use the external oscillator only with the documented loading, startup, and stability requirements.
The MC9S08DV32MLH uses a 64-LQFP package and provides 53 I/O, so the layout must preserve the exact pin multiplex map and exposed thermal or ground requirements from the package drawing. Keep traces short for external clock and high-speed communication routes, provide solid ground-plane continuity, and route analog inputs away from switching nodes. Do not use a generic QFP footprint without checking pad dimensions and pin numbering.
The supplied sources conflict between a listed 40 MHz CPU and a separate 20 MHz operating-rate description, and one source expresses the ADC conversion time as 2.5 s. Treat these as verification points rather than settled design constants. Confirm the clock-tree limits, bus timing, ADC timing, and package pin assignments in the official device documentation before coding or schematic release.
No verified thermal resistance, junction-temperature, or power-dissipation values are supplied. Calculate thermal performance only after obtaining the manufacturer limits and the actual supply voltage, core activity, I/O loading, and ambient conditions. Use copper spreading and, if required by the calculated dissipation, thermal vias or a heat-spreading strategy specified by the package documentation.
合規資訊
The supplied sources identify an automotive temperature grade but do not provide manufacturer compliance declarations. Do not infer RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status from the distributor listings.