MC9S08QD4VPC - 8-bit S08 MCU, 4KB Flash, 16MHz, DIP-8 | NXP
料号： MC9S08QD4VPC ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.78 | $2.78 |
| 10 | $2.62 | $26.20 |
| 100 | $2.4 | $240.00 |
| 500 | $2.14 | $1,070.00 |
| 1,000 | $1.92 | $1,920.00 |
MC9S08QD4VPC 概述
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash), volatile data memory (RAM), and a set of peripheral blocks into one package. The S08 core belongs to the Freescale/NXP HCS08 family, which uses a CISC instruction set with the legacy HC08 instruction set plus added BGND (background debug) support. The MC9S08QD4VPC operates from a 2.7 V to 5.5 V supply and integrates peripherals such as an analog-to-digital converter (ADC), timers, a multimaster I2C module, and an SCI/UART interface, making it suitable for simple control, sensing, and user-interface tasks.
Key features of the MC9S08QD4VPC include 4 KB of Flash memory, 256 bytes of RAM, an 8 MHz bus frequency (16 MHz maximum internal CPU clock), a 4-channel 10-bit ADC, 6 general-purpose I/O pins, low-power stop and wait modes, and an on-chip background debug system that supports in-circuit debugging with a single breakpoint plus two more breakpoints in on-chip memory. The 8-pin PDIP (plastic dual in-line package) footprint simplifies hand-prototyping and through-hole assembly while keeping the bill of materials small.
The device integrates an internal clock generator, a real-time interrupt (RTI) source, a keyboard interrupt (KBI) module on selected pins, and a programmable watchdog timer for safety-critical applications. Flash security prevents unauthorized memory reads, and the BGND instruction allows non-intrusive debug entry without disrupting the application. The architecture prioritizes deterministic behavior and low power consumption, making it well-suited to battery- or line-powered appliances.
Typical applications for the MC9S08QD4VPC include low-end home appliances, motor-control signal conditioning, automotive body electronics sub-modules, lighting controls, sensor interfaces, and small consumer devices. It is commonly used where an 8-bit MCU with modest memory and peripherals is sufficient, and where an inexpensive PDIP-8 footprint accelerates prototyping or hand-rework.
Designers should note that the 8-pin PDIP package exposes a limited I/O count (6 GPIO pins), which constrains simultaneous peripheral use. Pin functions must be multiplexed carefully between ADC, KBI, SCI, and timer resources. The internal clock accuracy may be insufficient for tight UART baud-rate matching in some applications, so an external crystal/oscillator option should be considered if timing precision is critical.
This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes not found in a single source, supporting procurement and design engineers evaluating the S08QD family for cost-sensitive 8-bit applications.
直接替换替代料： MC9S08QD4VPC ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MC9S08QD4VPC （相同外形与封装尺寸） ——差异在于 Core, Debug Interface, Instruction Set, Mounting Type, Program Memory (Flash).
快速对比工具——选择替代料号进行并排对比：
MC9S08QD2VPC
✅ 直接替换📋 参考替代料（不在目录中）
MC9S08QD4VPE
✅ 直接替换📋 参考替代料（不在目录中）
MC9S08QD4CPC
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
MC9S08QD2CPC
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
MC9S08QG4VPC
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
MC9S08QD4VPC 最大额定值与电气特性
| Core | S08 (HCS08) 8-bit CPU |
| Instruction Set | HC08 with added BGND |
| Maximum CPU Frequency | 16 MHz (8 MHz bus) |
| Program Memory (Flash) | 4 KB (4K x 8) |
| RAM | 256 bytes |
| Supply Voltage Range | 2.7 V to 5.5 V |
| 封装 | 8-pin PDIP (DIP-8, 0.300 inch / 7.62 mm) |
| GPIO Pins | 6 |
| ADC | 4-channel, 10-bit |
| Timers | MTIM and TPM (per datasheet) |
| Communication Interfaces | SCI (UART), I2C multimaster |
| Debug Interface | Background Debug Mode (BDM), 3 breakpoints |
| 工作温度 | -40 C to +85 C (industrial, typical) |
| 安装类型 | Through-hole (DIP) |
MC9S08QD4VPC 引脚配置
| 引脚 1 | VDD — Positive power supply input (2.7 V to 5.5 V) |
| 引脚 2 | VSS — Ground reference |
| 引脚 3 | PTA0/KBD0/ADC0/TCLK — GPIO PTA0, keyboard interrupt, ADC channel 0, or TCLK (per datasheet mux) |
| 引脚 4 | PTA1/KBD1/ADC1 — GPIO PTA1, keyboard interrupt, ADC channel 1 |
| 引脚 5 | PTA2/KBD2/ADC2 — GPIO PTA2, keyboard interrupt, ADC channel 2 |
| 引脚 6 | PTA3/KBD3/ADC3 — GPIO PTA3, keyboard interrupt, ADC channel 3 |
| 引脚 7 | BKGD/MS — Background debug mode and mode select input |
| 引脚 8 | RESET — External reset input (active low) |
典型应用
MC9S08QD4VPC 适用于 6 应用s: Low-End Home Appliance Control, Automotive Body Electronics Sub-Module, Sensor Interface Module, Lighting Control and LED Drivers, Small Consumer Devices and Toys, Industrial Process Signal Conditioning.
Low-End Home Appliance Control
The MC9S08QD4VPC fits low-end home-appliance control boards where 4 KB of Flash is enough to host a simple state machine, user-interface scanning, and a basic fault handler. Its 4-channel 10-bit ADC reads thermistor or potentiometer inputs for temperature-set selection, while its 6 GPIO pins drive relays, LEDs, and buzzer loads directly via transistors. Operating from 2.7 V to 5.5 V, the part handles both 3.3 V and 5 V supply rails common in small appliance designs, and the 16 MHz CPU clock provides enough headroom for debounced key handling and a slow PWM-driven load control without missing real-time events.
推荐
Automotive Body Electronics Sub-Module
In automotive body sub-modules such as simple lighting controllers, sensor interface nodes, and small accessory drivers, the MC9S08QD4VPC's 8-pin PDIP and HCS08 core offer a low-cost, deterministic control platform. The 4-channel 10-bit ADC reads automotive-grade sensors (such as NTC temperature or fuel-level rheostats) while the GPIO pins switch low-side MOSFET drivers for lamps or solenoids; the internal watchdog timer adds the safety layer required by body-Electronics OEM specifications. Operating from a regulated 5 V rail (often a downstream LDO from the 12 V battery), the part delivers industrial-temperature-range tolerance suitable for cabin modules.
推荐
Sensor Interface Module
Sensor-interface modules benefit from the MC9S08QD4VPC's tight integration of analog peripherals and a deterministic 8-bit core. The 4-channel 10-bit ADC handles single-ended sensor signals such as voltage dividers, photocells, or simple pressure sensors, while the I2C multimaster port connects to an external digital sensor (temperature, humidity) for hybrid analog/digital sensing. The internal SCI/UART enables diagnostic output to a service tool, and the 256-byte RAM buffers several samples per cycle at the modest sampling rates typical of these applications.
推荐
Lighting Control and LED Drivers
For digital lighting controls and simple LED-driver boards, the MC9S08QD4VPC provides a low-pin-count MCU capable of driving PWM dimming and reading ambient-light sensors. The TPM timer generates one or two PWM channels for LED dimming via low-side MOSFETs, while the 10-bit ADC samples a photodiode or photocell to close the loop on automatic brightness. The 6 GPIO pins also drive push-button inputs via the keyboard interrupt (KBI) module to wake the MCU on user activity, helping the design meet standby power budgets.
推荐
Small Consumer Devices and Toys
Small consumer devices and battery-powered toys benefit from the MC9S08QD4VPC's small footprint, low cost, and low-power run/stop modes. The MCU runs from 2.7 V to 5.5 V, allowing direct operation from two alkaline cells or a single Li-ion cell with an LDO; its stop mode drops supply current to microamp levels for long shelf life. The 4 KB Flash stores sound-effect selection, button patterns, and simple motor control sequences, and the 6 GPIOs handle motor enable, LED indicators, and two or three user buttons.
推荐
Industrial Process Signal Conditioning
In industrial signal-conditioning modules, the MC9S08QD4VPC serves as a small analog-front-end (AFE) controller that digitizes a 4-20 mA loop or a 0-10 V process signal and retransmits via UART or I2C to a higher-level controller. The 4-channel 10-bit ADC handles one or two process variables with filtering done in firmware, while the SCI/UART port streams data to a host PLC. The HCS08 deterministic interrupt response keeps loop sample latency bounded, and the industrial operating-temperature range (per the NXP MC9S08QD4 datasheet) supports panel-mounted installations.
推荐
推荐产品汇总
工程参考数据： MC9S08QD4VPC ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | MC9S08QD2VPC | MC9S08QD4VPE | MC9S08QD4CPC | MC9S08QD2CPC | MC9S08QG4VPC |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | PDIP-8 (0.300 inch) | PDIP-8 (same) | PDIP-8 (same) | PDIP-8 (same) | PDIP-8 (same) | PDIP-8 (same) |
| Core Architecture | HCS08 (8-bit) up to 16 MHz | HCS08 (8-bit) up to 16 MHz | HCS08 (8-bit) up to 16 MHz | HCS08 (8-bit) up to 16 MHz | HCS08 (8-bit) up to 16 MHz | HCS08 (8-bit) up to 16 MHz |
| Flash Memory | 4 KB | 2 KB | 4 KB | 4 KB | 2 KB | 4 KB |
| RAM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| GPIO Count | 6 | 6 | 6 | 6 | 6 | 6 (QG family, similar mux) |
| ADC | 4-channel, 10-bit | 4-channel, 10-bit | 4-channel, 10-bit | 4-channel, 10-bit | 4-channel, 10-bit | Up to 8-channel, 10-bit |
| Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
关键差异点
- Lowest-cost 8-bit S08 MCU in NXP portfolio （对比 MC9S08SH8CFK)
- Full 4 KB Flash in 8-pin PDIP （对比 MC9S08QD2VPC)
- On-chip BDM with 3 breakpoints （对比 ATTINY45-20PU)
设计说明
Estimated: The MC9S08QD4VPC draws peak core current in the low single-digit milliamp range from a 5 V supply at 16 MHz CPU clock. Adding 1 uF ceramic decoupling on VDD (pin 1) to VSS (pin 2) within 2 mm of the device keeps switching noise out of the ADC analog input. For battery-operated designs, use the stop-mode power-saving state (with RTI and KBI active) to drop average supply current to the microamp range and extend battery life.
Route the BKGD/MS pin (pin 7) away from high-current traces to avoid false debug-entry events. Place the decoupling capacitor as close as possible between VDD and VSS, use a ground plane under the part to manage ADC accuracy, and keep analog inputs short and away from digital switching lines. The 8-pin PDIP is forgiving for hand-wired prototype boards, but a PCB layout with a small ground pour still improves ADC performance.
Avoid relying on the internal oscillator for UART baud rates that demand tight accuracy; the S08QD's internal clock tolerance can exceed 2% over temperature, which is enough to corrupt higher baud rates. Use a slower baud rate such as 9600 or an external crystal-driven baud reference if interoperation with another UART is required. Also, do not exceed 5.5 V on VDD or leave the RESET pin floating - the MCU ships with internal pull-up enabled but an external 10 kohm pull-up is recommended for noisy environments.
合规信息
RoHS/lead-free status could not be confirmed from the provided web data - refer to the manufacturer datasheet and ordering code suffix (e.g., VPE = Pb-free) for definitive compliance. AEC-Q100 is not applicable as the device is not automotive-qualified per the S08QD family positioning.
