MC9S08GB32CFU - 8-bit S08 MCU 32KB Flash 40MHz 64-LQFP | NXP
部品番号: MC9S08GB32CFU ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $6.85 | $6.85 |
| 10 | $6.12 | $61.20 |
| 100 | $5.4 | $540.00 |
| 500 | $4.75 | $2,375.00 |
| 1,000 | $4.1 | $4,100.00 |
MC9S08GB32CFU 概要
What is an 8-bit microcontroller? An 8-bit MCU is a microprocessor-on-a-chip that processes data in 8-bit chunks, integrating CPU, non-volatile Flash program memory, RAM, and peripherals such as timers, ADC, communication controllers, and I/O. Within the broader taxonomy, the MC9S08GB32CFU sits as: microcontroller → 8-bit MCU → HCS08 family → S08GB sub-family → embedded microcontroller IC. Compared to 32-bit ARM Cortex-M devices, 8-bit HCS08 parts trade raw throughput for deterministic interrupt response, low power, and very small code footprint with a free CodeWarrior toolchain.
Key features include an integrated USB 2.0 full-speed device controller, an MSCAN (CAN 2.0A/B) module, two SCI/UART ports, one SPI and one I2C peripheral, an 8-channel 10-bit ADC, multiple timers (TPM1/TPM2), 56 general-purpose I/O pins, and an internal clock generator with an optional crystal oscillator. The HCS08 core executes most instructions in one bus cycle at 40MHz, supporting background debug mode and on-chip in-circuit programming.
The architecture uses a von Neumann bus with a 16-bit address space and a 16-bit stack pointer, allowing C-language development. The integrated bandgap reference and on-chip voltage regulator support operation from 2.7V to 5.5V, and the device includes low-power stop and wait modes with peripheral wake-up. The 64-LQFP package exposes the full peripheral set including USB D+/D- and CAN Tx/Rx lines, simplifying two-layer PCB layout for industrial designs.
Typical applications include industrial control panels, USB HID peripherals, CAN-based sensor nodes, HVAC controllers, point-of-sale terminals, motor control for small BLDC fans, and battery-powered metering equipment. The combination of USB device, CAN, and a 10-bit ADC makes the part a single-chip solution for fieldbus-connected instruments.
When designing with the MC9S08GB32CFU, ensure that the 5V-tolerant pins are not driven above VDD+0.3V and that the USB D+/D- lines are routed with 90-ohm differential impedance. The internal voltage regulator requires a bulk capacitor on the internal regulator output; consult the manufacturer datasheet for BDM connector pinout and background-debug mode usage.
This page synthesizes distributor pricing, drop-in S08GB alternatives, and practical design notes not found in a single manufacturer datasheet, helping engineers evaluate the part for both new designs and legacy board refresh projects.
ドロップイン代替品: MC9S08GB32CFU — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: MC9S08GB32CFU （同一形状・フットプリント） — 相違点: Package, ADC, Core Processor, MSL Level, Operating Temperature.
クイック比較ツール — 並列比較する代替部品を選択:
MC9S08GB60CFU
✅ ドロップイン✓ 在庫あり
$4.61 / 個
データシートを見る →MC9S08GB32CFUE
✅ ドロップイン✓ 在庫あり
$5.41 / 個
データシートを見る →MC9S08GT60CFU
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MC9S08GT32CFU
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MC9S08GB32CFU 最大定格＆電気的特性
| Core | HCS08 (8-bit CISC) |
| Program Memory | 32 KB Flash |
| RAM | 2 KB |
| Maximum CPU Frequency | 40 MHz |
| Operating Voltage | 2.7 V to 5.5 V |
| ADC | 10-bit, 8 channels |
| USB | USB 2.0 Full-Speed Device |
| CAN | MSCAN (CAN 2.0A/B), 1 module |
| SCI/UART | 2 modules |
| SPI | 1 module |
| I2C | 1 module |
| Timers | TPM1, TPM2 (16-bit) |
| GPIO Pins | 56 |
| パッケージ | 64-LQFP (10x10 mm, 0.5 mm pitch) |
| 実装タイプ | Surface Mount |
| 動作温度 | -40 C to +85 C (industrial) |
| MSLレベル | 3 (per JEDEC J-STD-020) |
| RoHS ステータス | Compliant (lead-free LFQFP) |
MC9S08GB32CFU ピン構成
| ピン 1 | PTA0/TCLK1 — General-purpose I/O / TPM1 external clock input |
| ピン 2 | PTA1/TCLK2 — General-purpose I/O / TPM2 external clock input |
| ピン 3 | PTA2 — General-purpose I/O |
| ピン 4 | PTA3 — General-purpose I/O |
| ピン 5 | PTA4 — General-purpose I/O |
| ピン 6 | PTA5 — General-purpose I/O |
| ピン 7 | PTA6 — General-purpose I/O |
| ピン 8 | PTA7 — General-purpose I/O |
| ピン 9 | PTB0/AD0 — GPIO / ADC channel 0 |
| ピン 10 | PTB1/AD1 — GPIO / ADC channel 1 |
| ピン 11 | PTB2/AD2 — GPIO / ADC channel 2 |
| ピン 12 | PTB3/AD3 — GPIO / ADC channel 3 |
| ピン 13 | PTB4/AD4 — GPIO / ADC channel 4 |
| ピン 14 | PTB5/AD5 — GPIO / ADC channel 5 |
| ピン 15 | PTB6/AD6 — GPIO / ADC channel 6 |
| ピン 16 | PTB7/AD7 — GPIO / ADC channel 7 |
| ピン 17 | BKGD — Background Debug Mode data |
| ピン 18 | MS — Mode Select (background debug) |
| ピン 19 | PTC0 — General-purpose I/O |
| ピン 20 | PTC1 — General-purpose I/O |
| ピン 21 | PTC2 — General-purpose I/O |
| ピン 22 | PTC3 — General-purpose I/O |
| ピン 23 | PTC4 — General-purpose I/O |
| ピン 24 | PTC5 — General-purpose I/O |
| ピン 25 | PTC6 — General-purpose I/O |
| ピン 26 | PTC7 — General-purpose I/O |
| ピン 27 | VSS1 — Ground |
| ピン 28 | VDD1 — Supply voltage (2.7V-5.5V) |
| ピン 29 | PTD0 — GPIO / SPI MISO / SDA |
| ピン 30 | PTD1 — GPIO / SPI MOSI / SCL |
| ピン 31 | PTD2 — GPIO / SPI SPSCK |
| ピン 32 | PTD3 — GPIO / SPI SS |
| ピン 33 | PTD4 — GPIO / TPM1 channel 0 |
| ピン 34 | PTD5 — GPIO / TPM1 channel 1 |
| ピン 35 | PTD6 — GPIO / TPM2 channel 0 |
| ピン 36 | PTD7 — GPIO / TPM2 channel 1 |
| ピン 37 | VSS2 — Ground |
| ピン 38 | USB D- — USB full-speed D- (differential pair) |
| ピン 39 | USB D+ — USB full-speed D+ (differential pair) |
| ピン 40 | CANTX — MSCAN transmit output |
| ピン 41 | CANRX — MSCAN receive input |
| ピン 42 | PTE0/TxD1 — GPIO / SCI1 transmit |
| ピン 43 | PTE1/RxD1 — GPIO / SCI1 receive |
| ピン 44 | PTE2 — General-purpose I/O |
| ピン 45 | PTE3 — General-purpose I/O |
| ピン 46 | PTE4 — General-purpose I/O |
| ピン 47 | PTE5 — General-purpose I/O |
| ピン 48 | PTE6 — General-purpose I/O |
| ピン 49 | PTE7 — General-purpose I/O |
| ピン 50 | PTF0/TxD2 — GPIO / SCI2 transmit |
| ピン 51 | PTF1/RxD2 — GPIO / SCI2 receive |
| ピン 52 | PTF2 — General-purpose I/O |
| ピン 53 | PTF3 — General-purpose I/O |
| ピン 54 | PTF4 — General-purpose I/O |
| ピン 55 | PTF5 — General-purpose I/O |
| ピン 56 | PTF6 — General-purpose I/O |
| ピン 57 | PTF7 — General-purpose I/O |
| ピン 58 | VSS3 — Ground |
| ピン 59 | VDD2 — Supply voltage (2.7V-5.5V) |
| ピン 60 | PTG0 — General-purpose I/O |
| ピン 61 | PTG1 — General-purpose I/O |
| ピン 62 | PTG2 — General-purpose I/O |
| ピン 63 | PTG3 — General-purpose I/O |
| ピン 64 | RESET — External reset (active low, internal pull-up) |
主な用途
MC9S08GB32CFU の用途: 6 件s: USB HID Peripheral (Keyboard / Barcode Scanner), Industrial CAN Sensor Node, HVAC Control Panel, Battery-Powered Metering (Gas / Water / Electric), Point-of-Sale (POS) Terminal, Small BLDC Fan Motor Controller.
USB HID Peripheral (Keyboard / Barcode Scanner)
The MC9S08GB32CFU is well-suited for USB HID peripherals such as keyboards, barcode scanners, and custom input devices where 32KB Flash easily accommodates a USB HID report descriptor plus application logic, and 2KB RAM is sufficient for HID buffers and key-rollover tables. The integrated USB 2.0 full-speed device controller with on-chip transceiver eliminates the external USB PHY, BOM cost, and 22-ohm series resistors on D+/D-; engineers only need 90-ohm differential routing on the USB pair to pins 38-39 of the 64-LQFP. The HCS08 core's deterministic interrupt response (typically 9 cycles worst-case) gives consistent HID polling rates. Compared with a Cortex-M0+ solution, this part reduces BOM cost by ~$1 in volume while still delivering USB-IF compliant full-speed signaling.
おすすめ
Industrial CAN Sensor Node
For industrial CAN sensor nodes on a CAN 2.0A/B fieldbus, the MC9S08GB32CFU combines an MSCAN module, an 8-channel 10-bit ADC, and 32KB Flash that fits a CANopen or DeviceNet slave stack plus analog conditioning firmware in a single chip. Pins 40-41 of the 64-LQFP expose MSCAN Tx/Rx directly to a 3.3V CAN transceiver such as the TJA1050, while the 10-bit ADC samples sensors at up to ~30 ksps with 8 muxed channels - enough for multi-input instrumentation nodes. Operating voltage of 2.7V-5.5V lets the same hardware accept both 3.3V regulated rails and raw 5V industrial bus power with adequate filtering. The HCS08 core's 40MHz CPU clock and 16-bit stack pointer support C-coded CANopen stacks with predictable message latency.
おすすめ
HVAC Control Panel
The MC9S08GB32CFU fits HVAC control panels where a single 8-bit MCU must read keypad inputs, drive an LCD or character display via SPI, communicate with a furnace/heat-pump controller over UART, and log temperature via the on-chip 10-bit ADC. The two SCI/UART modules support simultaneous connection to a wall thermostat bus and a service-port diagnostic interface, while the SPI peripheral drives a typical character LCD or graphical OLED with low pin overhead. The 56 GPIO pins of the 64-LQFP package leave ample headroom for keypad scanning (8x8 matrix), status LEDs, and triac zero-cross sync inputs. Industrial -40 C to +85 C rating allows placement near furnaces and outdoor heat-pump units without thermal derating concerns.
おすすめ
Battery-Powered Metering (Gas / Water / Electric)
For battery-powered metering applications, the MC9S08GB32CFU offers stop and wait low-power modes that drop quiescent current to single-digit microamps while retaining RAM and selected peripherals, making it a fit for utility meters that must run 5-10 years on a primary cell. The 10-bit ADC with internal bandgap reference supports direct ratiometric measurement of shunt current or thermistor temperature without an external reference. USB device support enables service technicians to plug a meter into a laptop for log download and firmware update, while the CAN/SPI/UART peripherals support automated meter reading (AMR) modules. The 64-LQFP 10x10 mm package is footprint-compatible with other GB-family parts, enabling one PCB to ship GB32 or GB60 variants based on feature tier.
おすすめ
Point-of-Sale (POS) Terminal
The MC9S08GB32CFU's combination of USB device, two UARTs, SPI, and I2C makes it a single-chip controller for compact POS terminals where a magnetic-stripe reader, a thermal printer, and an NFC/PIN-pad module all need separate interfaces on the same board. The integrated USB 2.0 full-speed device simplifies connection to a host POS PC without an external bridge chip, while the 32KB Flash fits a state-machine firmware handling card swipe, printer handshaking, and I2C-based secure keypad polling. Operating from 2.7V to 5.5V accommodates battery-backed and bus-powered designs alike, and the 64-LQFP 10x10 mm footprint supports compact enclosures where 32-bit Cortex parts would be cost-prohibitive at low volume.
おすすめ
Small BLDC Fan Motor Controller
For small brushless DC (BLDC) fan motor controllers in server fans, appliance fans, and ventilation equipment, the MC9S08GB32CFU's TPM1/TPM2 16-bit timers with input capture and PWM outputs are well-matched to 3-phase or 1-phase commutation firmware. The 8-channel 10-bit ADC samples back-EMF or current-sense signals at the PWM rate, while the 40MHz CPU executes commutation state machines with sub-microsecond jitter. The 64-LQFP package exposes enough PWM channels for 3-phase gate drivers plus a tachometer input for closed-loop RPM control. Compared with a 32-bit Cortex part, this 8-bit MCU saves $1-2 in BOM and keeps the commutation loop fully deterministic, which is critical for low acoustic noise and EMI compliance in fan applications.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: MC9S08GB32CFU — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | MC9S08GB60CFU | MC9S08GB32CFUE | MC9S08GT60CFU | MC9S08GT32CFU |
|---|---|---|---|---|---|
| Package | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Flash | 32 KB | 60 KB (+87%) | 32 KB (same) | 60 KB (+87%) | 32 KB (same) |
| RAM | 2 KB | 4 KB (+100%) | 2 KB (same) | 4 KB (+100%) | 2 KB (same) |
| CPU Frequency | 40 MHz | 40 MHz (same) | 40 MHz (same) | 40 MHz (same) | 40 MHz (same) |
| USB | USB 2.0 FS Device | USB 2.0 FS Device | USB 2.0 FS Device | USB 2.0 FS Device | USB 2.0 FS Device |
| CAN (MSCAN) | Yes (1 module) | Yes (1 module) | Yes (1 module) | Yes (1 module) | Yes (1 module) |
| ADC | 10-bit, 8 ch | 10-bit, 8 ch | 10-bit, 8 ch | 10-bit, 8 ch | 10-bit, 8 ch |
主な差別化要因
- Integrated USB 2.0 full-speed device with on-chip transceiver in 64-LQFP （vs MC9S08AW32CFUE)
- 32KB Flash at lower cost than 60KB sibling （vs MC9S08GB60CFU)
- Industrial -40 C to +85 C rating in lead-free LFQFP （vs MC9S08FL8CLC)
- Free CodeWarrior toolchain with mature USB and CAN stacks （vs Cortex-M0+ alternatives)
設計ノート
The MC9S08GB32CFU has multiple VDD/VSS pin pairs (VDD1/VDD2 and VSS1/VSS2/VSS3) that must each be decoupled with a 100nF ceramic capacitor placed within 5 mm of the pin. The internal voltage regulator output also requires a 4.7uF bulk capacitor on the VREG pin per the family datasheet. Failing to decouple all supply pairs is a common cause of MCU reset and USB enumeration failures on 64-LQFP designs.
Route the USB D+ (pin 39) and D- (pin 38) as a 90-ohm differential pair on the top layer under an unbroken ground pour, keeping trace length under 50 mm to meet USB 2.0 full-speed signal integrity. Place the MSCAN Tx/Rx lines (pins 40-41) away from the USB pair to avoid coupling; the MSCAN module should drive an external 3.3V transceiver such as the TJA1050 via short, parallel traces. Keep BKGD (pin 17) and MS (pin 18) accessible on a 2x3 BDM header for in-circuit debug.
Do not drive any 5V signal into a MC9S08GB32CFU GPIO when VDD is 3.3V - the inputs are not 5V-tolerant at 3.3V supply, and exceeding VDD+0.3V can trigger latch-up. Use a level translator (e.g., TXS0108E) for 5V buses, or simply operate the MCU at 5V VDD. Also ensure the RESET pin (pin 64) has a 10k pull-up to VDD and a 100nF cap to ground for clean power-on reset, otherwise random code execution during VDD ramp-up can corrupt Flash.
Estimated: at 40 MHz CPU clock, VDD=5V, and all peripherals active, the core draws roughly 25 mA, yielding Pdiss = 125 mW. With the 64-LQFP theta_JA of approximately 65 C/W on a 4-layer JEDEC test board, the junction temperature rise above ambient is roughly 8 C - well within the -40 C to +85 C industrial rating without special heatsinking. For sealed enclosures, derate by 20 percent to account for reduced natural convection.
コンプライアンス情報
RoHS-compliant lead-free LFQFP-64 per NXP product page declarations. Industrial temperature -40 C to +85 C. Not AEC-Q100 qualified - choose a Q-suffix S08 part or S12/S32K family for automotive.
