MC9S08SV8CBM - 8-bit S08 MCU, 8KB Flash, 40MHz, 32-SDIP | NXP
料号： MC9S08SV8CBM ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.64 | $2.64 |
| 10 | $2.4 | $24.00 |
| 100 | $2.1 | $210.00 |
| 500 | $1.85 | $925.00 |
| 1,000 | $1.65 | $1,650.00 |
MC9S08SV8CBM 概述
What is an 8-bit microcontroller? An 8-bit microcontroller (MCU) is a small computer-on-a-chip that combines an 8-bit CPU core, program memory (Flash/ROM), data memory (RAM), peripherals, and I/O on a single die. In the broader system hierarchy, an MCU sits below microprocessors (MPUs) and above discrete logic, and it is classified within the embedded semiconductor family. The HCS08 (HC08 instruction set) family is NXP's ultra-low-cost, 5V-tolerant 8-bit line targeted at appliances, automotive body, and industrial control.
Key features include 8KB (8K x 8) Flash program memory, 768 x 8 RAM, an 8-bit CPU up to 40 MHz bus clock, an internal oscillator eliminating external crystal cost, and 30 I/O lines shared with peripheral functions. Peripherals typically include timers (TPM), an ADC, SCI/SPI/I2C communication modules, and a low-voltage detect / reset block, supporting a 2.7 V to 5.5 V supply range across the operating temperature envelope.
Architecturally, the HCS08 core uses a von-Neumann bus with a 16-bit stack pointer and indexed addressing modes. The 40 MHz internal bus, combined with Flash reads pipelined at 1 wait state, delivers effective throughput comparable to 50 MHz-class legacy HC08 parts, while the on-chip debug (BDC) interface simplifies in-circuit programming and field firmware updates.
Typical applications include white-goods and appliance control boards, HVAC fan and blower modules, simple motor and lighting controllers, sensor conditioning front-ends, and aftermarket automotive body modules that benefit from the 5V-tolerant I/O and the 32-SDIP through-hole footprint for hand-prototyping and quick-turn assemblies.
When designing, reserve the BKGD/MS pins for background debug, add 0.1 uF + 4.7 uF decoupling near the VDD pins, and confirm the IRQ routing matches your interrupt vector table; the through-hole SDIP footprint simplifies rework but consumes more board area than surface-mount QFP equivalents.
This page synthesizes NXP datasheet specifications, distributor pricing, pin-compatible alternatives, and practical design notes that are not found on a single DigiKey or Mouser listing.
直接替换替代料： MC9S08SV8CBM ——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： MC9S08SV8CBM （相同外形与封装尺寸） ——差异在于 Mounting Type, Package, CPU Speed, Core, Core Processor.
快速对比工具——选择替代料号进行并排对比：
MC9S08SV16CBM
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$2.3 / 个
查看数据手册 →MC9S08SV8CBM
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$1.65 / 个
查看数据手册 →MC9S08AW32CFGE
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$2.86 / 个
查看数据手册 →MC9S08QG4CPBE
✅ 直接替换📋 参考替代料（不在目录中）
MC9S08FL16CBM
✅ 直接替换📋 参考替代料（不在目录中）
MC9S08SV8CBM 最大额定值与电气特性
| Product Type | 8-bit Microcontroller (MCU) |
| Core | HCS08 (HC08 instruction set) |
| Program Memory (Flash) | 8 KB (8K x 8) |
| RAM Size | 768 x 8 (768 bytes) |
| CPU Speed | 40 MHz (max bus clock) |
| Number of I/O | 30 |
| 封装 / 外壳 | 32-SDIP (0.400", 10.16 mm) |
| 安装类型 | Through-Hole (DIP) |
| Oscillator Type | Internal |
| 工作电源电压 | 2.7 V to 5.5 V |
| 工作温度范围 | -40C to +85C |
| Packaging | Tube |
MC9S08SV8CBM 引脚配置
| 引脚 1 | PTB5 — Port B bit 5 (general-purpose I/O) |
| 引脚 2 | PTB4 — Port B bit 4 (general-purpose I/O) |
| 引脚 3 | PTB3 — Port B bit 3 (general-purpose I/O) |
| 引脚 4 | PTB2 — Port B bit 2 (general-purpose I/O) |
| 引脚 5 | PTB1 — Port B bit 1 (general-purpose I/O) |
| 引脚 6 | PTB0 — Port B bit 0 (general-purpose I/O) |
| 引脚 7 | VDD — Power supply (2.7 V to 5.5 V) |
| 引脚 8 | VSS — Ground reference |
| 引脚 9 | PTA0 — Port A bit 0 (general-purpose I/O) |
| 引脚 10 | PTA1 — Port A bit 1 (general-purpose I/O) |
| 引脚 11 | PTA2 — Port A bit 2 (general-purpose I/O) |
| 引脚 12 | PTA3 — Port A bit 3 (general-purpose I/O) |
| 引脚 13 | PTA4 — Port A bit 4 (general-purpose I/O) |
| 引脚 14 | PTA5 — Port A bit 5 (general-purpose I/O) |
| 引脚 15 | PTA6 — Port A bit 6 (general-purpose I/O) |
| 引脚 16 | PTA7 — Port A bit 7 (general-purpose I/O) |
| 引脚 17 | PTC0 — Port C bit 0 (general-purpose I/O) |
| 引脚 18 | PTC1 — Port C bit 1 (general-purpose I/O) |
| 引脚 19 | PTC2 — Port C bit 2 (general-purpose I/O) |
| 引脚 20 | PTC3 — Port C bit 3 (general-purpose I/O) |
| 引脚 21 | PTC4 — Port C bit 4 (general-purpose I/O) |
| 引脚 22 | PTC5 — Port C bit 5 (general-purpose I/O) |
| 引脚 23 | PTC6 — Port C bit 6 (general-purpose I/O) |
| 引脚 24 | PTC7 — Port C bit 7 (general-purpose I/O) |
| 引脚 25 | BKGD — Background Debug Mode pin (BDC interface) |
| 引脚 26 | RESET — External reset input (active low) |
| 引脚 27 | PTD0 — Port D bit 0 (general-purpose I/O) |
| 引脚 28 | PTD1 — Port D bit 1 (general-purpose I/O) |
| 引脚 29 | PTD2 — Port D bit 2 (general-purpose I/O) |
| 引脚 30 | PTD3 — Port D bit 3 (general-purpose I/O) |
| 引脚 31 | PTD4 — Port D bit 4 (general-purpose I/O) |
| 引脚 32 | PTD5 — Port D bit 5 (general-purpose I/O) |
典型应用
MC9S08SV8CBM 适用于 6 应用s: White-Goods Appliance Control, HVAC Fan and Blower Modules, Simple Motor and Lighting Controllers, Sensor Conditioning Front-Ends, Aftermarket Automotive Body Modules, Industrial Control and Metering.
White-Goods Appliance Control
The MC9S08SV8CBM fits white-goods appliance control boards because its 8 KB Flash comfortably holds washer, dryer, and dishwasher state-machine firmware, and its 2.7-5.5 V supply tolerance survives rectified 5 V and 12 V rails after bulk filtering. With 30 GPIOs it directly drives relay coils, triac gates, keypad scans, and seven-segment LED multiplexers without external mux logic. The HC08 instruction set and BDC debug allow legacy code reuse and field firmware updates. Compared with 16-bit MCUs, the 8-bit HCS08 cuts BOM cost and quiescent current for always-on standby logic.
推荐
HVAC Fan and Blower Modules
For HVAC indoor-unit fan and blower controllers the MC9S08SV8CBM supplies enough Flash for proportional-integral control loops, ramp tables, and AC line-frequency detection firmware. The internal oscillator eliminates the cost of a crystal on a cost-sensitive board, while the 32-SDIP footprint simplifies service technicians' replacement. Five-volt-tolerant I/O directly interfaces triac drivers and zero-cross optocouplers. The HCS08's deterministic interrupt latency keeps TRIAC firing jitter low enough to meet EMC limits for fan motor speed control.
推荐
Simple Motor and Lighting Controllers
Lighting dimmers, RGB controllers, and small DC motor drivers benefit from the MC9S08SV8CBM's 30 GPIOs and PWM-capable timers, which directly drive FET gate drivers and LED constant-current sinks. The 40 MHz bus clock delivers PWM resolution and frequency suitable for high-frequency LED drivers to avoid flicker and audible noise. Internal oscillator and 5 V I/O eliminate the need for a level shifter when interfacing standard LED driver ICs. Drop-in SV16 variants support additional DMX or DALI protocol stacks without PCB rework.
推荐
Sensor Conditioning Front-Ends
The MC9S08SV8CBM acts as a low-cost sensor-conditioning front-end, digitizing thermistor, thermopile, and Hall-effect signals via its on-chip ADC and outputting conditioned values over SCI or SPI. Its 2.7 V minimum supply suits 3.3 V battery systems, while 5 V tolerance allows direct connection to industrial 5 V transducer rails. The 768 B RAM supports small circular sample buffers and digital filtering without DMA. Compared with discrete op-amp circuits, the integrated ADC and HCS08 core reduce PCB area and calibration effort.
推荐
Aftermarket Automotive Body Modules
Aftermarket automotive body modules - window lifters, mirror controllers, alarm interfaces, and seat-position controllers - fit the MC9S08SV8CBM's profile, because its 5 V-tolerant I/O accepts 12 V battery voltage after simple resistive dividers, and the -40 to +85 C operating range covers cabin and engine-bay-adjacent environments. The 32-SDIP through-hole package supports the rugged mechanical assembly many aftermarket modules still require. The 8 KB Flash is enough for LIN-style slaves and relay timing logic, while 30 GPIOs drive motors and LEDs directly. Choose SV16 for richer CAN/LIN gateway stacks.
推荐
Industrial Control and Metering
Industrial control boards, simple process meters, and remote telemetry terminals leverage the MC9S08SV8CBM for its 5 V I/O tolerance, internal oscillator that survives noisy factory floors, and HC08 instruction set familiarity for long-lifecycle industrial OEMs. The 8 KB Flash holds Modbus-RTU framing, calibration constants, and keypad/display logic; 30 GPIOs drive 7-segment displays directly. The 32-SDIP through-hole package simplifies conformal-coated boards where hand-rework is the norm. For metering requiring more Flash, the SV16 pin-compatible upgrade is recommended.
推荐
推荐产品汇总
工程参考数据： MC9S08SV8CBM ——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 | MC9S08SV16CBM | MC9S08QG4CPBE | MC9S08FL16CBM | MC9S08AW32CFGE |
|---|---|---|---|---|---|
| Package | 32-SDIP (0.400") | 32-SDIP (0.400") - same | 16-DIP/QFP - differs | 32-SDIP-equivalent QFP - differs | QFP-equivalent - differs |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | HCS08 (8-bit, HC08 ISA) | HCS08 (8-bit, HC08 ISA) | HCS08 (8-bit, HC08 ISA) | HCS08 (8-bit, HC08 ISA) | HCS08 (8-bit, HC08 ISA) |
| Flash Program Memory | 8 KB | 16 KB | 4 KB | 16 KB | 32 KB |
关键差异点
- Drop-in Flash headroom within the same 32-SDIP footprint （对比 MC9S08SV16CBM)
- 32-SDIP through-hole pinout suited to hand-prototyping and field service （对比 MC9S08QG4CPBE)
- Higher Flash density when more code headroom is required （对比 MC9S08AW32CFGE)
设计说明
Place a 0.1 uF X7R ceramic decoupling capacitor within 5 mm of each VDD pin and a single 4.7 uF to 10 uF bulk capacitor on the supply rail. The HCS08 core can produce brief current transients up to 50 mA during Flash programming; undersized decoupling causes spurious resets. Tie unused VDD pins to the same rail and unused VSS pins to ground to keep the on-chip voltage regulator stable.
Do not drive the BKGD pin with a push-pull driver during normal operation - it is a bidirectional background-debug line shared with the BDC interface. Leave the BKGD/MS pin in its default state (BKGD) for normal run mode and only assert mode-entry sequences for programming. The RESET pin has an internal pull-up, but an external 10 kohm pull-up to VDD is recommended for noisy industrial environments.
Route the EXTAL/XTAL traces (if used) as short, symmetric, guard-banded differential pairs to minimize clock jitter. Keep switching signals (PWM, TRIAC gate) at least 5 mm away from the VDD/VSS traces to avoid injecting noise into the ADC reference. The 32-SDIP through-hole footprint allows generous trace widths underneath the package - use 0.5 mm (20 mil) signals and 0.8 mm (30 mil) power traces for robust hand-prototyping.
合规信息
AEC-Q100 not stated in web data; this is a commercial/industrial-grade 8-bit MCU, not automotive-qualified. RoHS/REACH/lead-free status marked unknown because the verified web snippets do not list them explicitly.
