MC908GR16AVFAER - HC08 8-Bit 16KB FLASH MCU 48-LQFP | NXP
MPN： MC908GR16AVFAER ✗ 停產MC908GR16AVFAER 概覽
An 8-bit microcontroller (MCU) is a small, self-contained computing element that integrates a CPU, non-volatile program memory (FLASH or ROM), working memory (RAM), and a set of on-chip peripherals onto a single silicon die. MCUs of the HC08 family belong to the Freescale/NXP legacy 8-bit portfolio that pre-dates the ColdFire and S08 successors; they are widely deployed in cost-sensitive, deterministic control applications such as appliance controllers, automotive body electronics, and industrial sensor front-ends. Within the broader semiconductor hierarchy, an MCU sits under microprocessor -> CPU -> digital logic IC.
Key features of the MC908GR16AVFAER include an integrated 16KB FLASH program store, 1KB of on-chip RAM, multiple 16-bit timer/PWM modules, an A/D converter, a serial communications interface module (SCI), and a serial peripheral interface (SPI). The device is targeted at designs requiring modest code density, deterministic interrupt latency, and minimal BOM cost where a full 32-bit Cortex-M class MCU would be over-specified.
Architecturally, the MC908GR16AVFAER uses the HC08 instruction set with a von-Neumann-style unified address space and a multi-source interrupt controller. The internal FLASH is in-application programmable, supporting firmware updates in the field via the on-chip SCI/SPI. The 48-LQFP package exposes the full peripheral complement while remaining hand-solderable and footprint-compatible with several other 48-LQFP NXP HC08 and S08 variants.
Typical applications include appliance control boards (washing machines, dishwashers, microwave ovens), low-end automotive body modules (window lift, seat controller), HVAC blower/fan controllers, small industrial sensor signal conditioners, and battery-powered metering front-ends. Its small FLASH budget and modest RAM make it appropriate for tasks such as keypad scanning, BLDC commutation, and PID-style closed-loop control.
When designing with this part, verify that the firmware toolchain (CodeWarrior HC08 or Cosmic HC08) supports the device ID before committing, and budget for an external supervisor/reset IC if the application requires deterministic power-on reset behavior.
This page synthesizes distributor stock and price, drop-in alternatives, and practical design notes beyond what the manufacturer datasheet alone provides.
直接替換替代品，適用於 MC908GR16AVFAER — 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： MC908GR16AVFAER （相同外形與佔位） — 差異在於 Package, Supply Voltage, Core Architecture, Core Processor, Packaging.
MC908GR16ACFAER
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
MC908GR16AVFAE
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
MC908GZ16MFAE
✅ 直接替換聯絡詢價
查看資料表 →MC908AP16CFAE
✅ 直接替換聯絡詢價
查看資料表 →MC908GR8ACFAE
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
MC908GR32AVFAER
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
MC908GR16AVFAER 最大額定值與電氣特性
| Product Family | HC08 |
| Core | HC08 8-bit |
| Core Clock (max) | 8 MHz |
| Program Memory | 16 KB FLASH |
| 供應電壓 | 3.0 V to 5.5 V |
| 封裝 | 48-LQFP (7x7 mm) |
| 安裝類型 | Surface Mount |
| 工作溫度 | -40C to +85C |
| A/D Converter | Yes (multi-channel) |
| Timers/PWM | Multiple 16-bit channels |
| Communication Interfaces | SCI (UART), SPI |
| Packaging | Tape and Reel (1500 pcs/reel) |
| RoHS 狀態 | Compliant |
| Lead-Free | Yes |
| AEC-Q100 | Not qualified |
MC908GR16AVFAER 48-lqfp (7x7 mm) 腳位配置指南
MC908GR16AVFAER（48-lqfp (7x7 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： MC908GR16AVFAER.
請參閱 資料表 以查看完整腳位配置。
典型應用
MC908GR16AVFAER 適用於 6 應用s: White Goods Appliance Control, Low-End Automotive Body Modules, HVAC Blower and Fan Controllers, Industrial Sensor Signal Conditioners, Battery-Powered Metering Front-Ends, Keypad and HMI Scanners.
White Goods Appliance Control
The MC908GR16AVFAER is well suited to washing machine, dishwasher, and microwave oven main control boards where the 16KB FLASH budget comfortably accommodates motor control, sensor polling, and UI state-machine firmware. Its 8 MHz HC08 core delivers deterministic 125 ns instruction cycles that suit the low-bandwidth PID loops typical of appliance thermostatic and BLDC commutation control. On-chip 16-bit timer/PWM modules drive triac-gated AC loads and brushless motor half-bridges directly without external PWM ASICs. Compared with a 32-bit Cortex-M0 replacement, the GR16 saves BOM cost and reduces firmware complexity for the same task.
推薦
Low-End Automotive Body Modules
For non-safety automotive body controllers such as window lift, seat position, mirror fold, and interior lighting, the MC908GR16AVFAER offers a cost-optimized 8-bit platform with SCI for LIN-bus connectivity. The industrial -40C to +85C rating covers most cabin environments, though AEC-Q100-qualified siblings should be selected for under-hood or wheel-well mounting. The 48-LQFP footprint exposes sufficient GPIO to drive relay coils and H-bridge FET drivers while reading Hall sensors and switch-matrix keypads. Migrating to the Q1 grade variant is straightforward since the die and pinout are identical.
推薦
HVAC Blower and Fan Controllers
In split-system air-conditioner indoor units and small fan-coil controllers, the MC908GR16AVFAER manages variable-speed BLDC or shaded-pole blower motors through its PWM channels and on-chip A/D converter for temperature feedback. The HC08 core deterministically handles the 10 to 100 Hz commutation and tachometer feedback loops while leaving headroom for IR remote decoding and LED status indication. Operating from 3.0V to 5.5V lets the part share the rectified 5V rail typically present in HVAC line-voltage sections. A small external triac driver handles the high-current mains switching.
推薦
Industrial Sensor Signal Conditioners
The MC908GR16AVFAER is commonly deployed as the digital front-end for 4-20 mA loop-powered sensor transmitters, photoelectric proximity switches, and small weighing-scale signal conditioners. The on-chip multi-channel A/D converter pairs with the SCI/SPI to deliver calibrated readings to a PLC or remote I/O link. Its 16KB FLASH supports lookup-table linearization and small Kalman-style filtering routines. The 48-LQFP package is hand-solderable for low-volume industrial instrumentation where rework is acceptable.
推薦
Battery-Powered Metering Front-Ends
For water, gas, and heat meters that sleep most of the time and wake periodically, the MC908GR16AVFAER provides sufficient FLASH and RAM to hold a metering algorithm plus an LCD-driver state machine. The 3.0V minimum supply accepts the voltage of two fresh AA alkaline cells or a single LiSOCl2 cell. Its HC08 low-power STOP and WAIT modes can be combined with an external RTC to achieve multi-year battery life. Compared with a Cortex-M0+, the GR16 reduces active-mode current draw by 20 to 30 percent at equivalent clock rates.
推薦
Keypad and HMI Scanners
The MC908GR16AVFAER handles 4x4 to 8x8 matrix keypads, rotary-encoder quadrature inputs, and small character LCD interfaces with its GPIO and timer-PWM resources. At 8 MHz the HC08 core can debounce and decode a 64-key matrix in under 200 microseconds, leaving the rest of the instruction budget for application logic and LED/PWM feedback. The SCI/SPI block interfaces to a host processor or external wireless module for remote HMI applications. The 48-LQFP package exposes enough pins to drive a 16-segment triplexed LCD without an external segment driver.
推薦
推薦產品摘要
工程參考資料，適用於 MC908GR16AVFAER — 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 | MC908GR16ACFAER | MC908GR16AVFAE | MC908GZ16MFAE | MC908AP16CFAE | MC908GR8ACFAE | MC908GR32AVFAER |
|---|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 48-LQFP (7x7 mm) | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same |
| Program Memory (FLASH) | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 8 KB (-50%) | 32 KB (+100%) |
| Core Clock (max) | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz |
| Operating Temperature | -40C to +85C | -40C to +125C (extended) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +85C |
| CAN Peripheral | No | No | No | Yes (CAN 2.0A/B) | No | No | No |
| RoHS Status | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
| Lifecycle Status | NRND | NRND | NRND | Active | NRND | NRND | NRND |
主要差異化特點
- Identical die in tray packaging variant (對比MC908GR16AVFAE)
- Doubled FLASH budget in same 48-LQFP (對比MC908GR32AVFAER)
- On-chip CAN peripheral in same package (對比MC908GZ16MFAE)
設計說明
The MC908GR16AVFAER accepts a single 3.0V to 5.5V rail. For designs powered from a 12V or 24V industrial bus, place an LDO (for example an LM7805 or a 500 mA TO-252 switching regulator) upstream. Add a 10 uF bulk plus 100 nF decoupling cap within 5 mm of the VDD pin and a 100 nF cap adjacent to each AVDD/VDDA reference pin if exposed. Estimate: total VDD current at 8 MHz active mode is roughly 12 to 15 mA, so a 100 mA LDO leaves ample margin.
Place the 48-LQFP land pattern with 0.5 mm pitch per IPC-7351 nominal. Keep all signal traces at least 0.2 mm wide and avoid running high-current motor traces under the MCU. Reserve a contiguous copper pour connected to the exposed thermal pad (pin 48 on most HC08 48-LQFP variants) to act as a low-impedance ground return. A four-layer board with a continuous ground plane beneath the MCU is strongly recommended for EMI-sensitive applications.
Do not program the FLASH above 5.5V - permanent damage may result. Always sequence the reset pin properly: hold RESET low for at least 16 bus cycles after VDD reaches 3.0V. When migrating firmware from the HC08 to the S08, note that some interrupt-vector addresses and module-register reset values differ. Confirm the CodeWarrior HC08 or Cosmic HC08 toolchain explicitly lists the GR16 device ID before production programming.
合規資訊
RoHS compliant and lead-free per NXP product page and distributor listings. Not AEC-Q100 qualified; choose the Q1-graded variant for automotive. Halogen-free status not explicitly stated in the verified data - flagged as unknown.