MC9S08QG84CFFE - 8KB Flash 8-bit MCU 20MHz QFN-16 | NXP
Артикул: MC9S08QG84CFFE ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $1.5 | $1,50 |
| 10 | $1.43 | $14,30 |
| 100 | $1.35 | $135,00 |
| 500 | $1.28 | $640,00 |
| 1.000 | $1.21 | $1.210,00 |
MC9S08QG84CFFE Обзор
An 8-bit microcontroller is a single-chip computer whose CPU processes data 8 bits at a time. Within the embedded-systems hierarchy, the MC9S08QG84CFFE belongs to the microcontroller unit (MCU) category, which integrates a processor core, program memory, data RAM, and peripherals on a single die. MCUs sit at the edge of power management and sensor interfaces in electronic systems, and small-package, low-pin-count MCUs like the S08QG family are optimized for cost-sensitive, space-constrained designs.
Key features of the MC9S08QG84CFFE include 8 KB (8K x 8) of flash program memory, the low-power S08 CISC core clocked up to 20 MHz, and a rich peripheral set typically found in larger devices: an 8-channel 10-bit ADC, an internal clock source with FLL, and serial interfaces such as SCI and IIC, all in a compact 16-QFN footprint. The exposed-pad QFN improves thermal performance and grounding while keeping the board area to roughly 25 mm square.
Technically, the device operates from 2.5V or 3.3V supplies, making it suitable for both battery-powered and 3.3V logic designs. The S08 architecture offers multiple low-power stop and wait modes, background debugging (BKGD/MS) via a single pin, and in-circuit flash programming, which reduces development cost and simplifies field updates.
Typical applications include battery-powered consumer devices, small appliance control, sensor conditioning and data acquisition front ends, LED and lighting control, and small industrial sub-systems where a compact 16-pin MCU with on-chip ADC is sufficient.
For design consideration, the internal clock source eliminates the need for an external crystal in most cost-optimized designs, freeing two GPIO pins; verify ADC accuracy requirements before omitting the crystal, since the internal oscillator offers lower precision than an external reference.
This page synthesizes verified distributor pricing and stock data, drop-in same-family alternatives, comparison tables, and practical design notes not found in the manufacturer datasheet, so engineers can source and evaluate the MC9S08QG84CFFE in one place.
Аналоги без доработки для MC9S08QG84CFFE — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с MC9S08QG84CFFE (тот же форм-фактор и посадочное место) — отличается по Package, RoHS Status, Instruction Set, ADC, Core.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
MC9S08QG8CFFE
✅ Прямая замена✓ В наличии
Уточнить цену
Открыть даташит →MC9S08QG8CFDE
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
MC9S08QG4CFFE
✅ Прямая замена ⚠️ Характеристики не проверены✓ В наличии
$1.1 / шт.
Открыть даташит →MC9S08QG4CFDE
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
MC9S08QG8CFJE
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
MC9S08QG84CFFE Максимальные параметры и электрические характеристики
| Core Processor | S08 (HCS08) 8-bit CISC |
| Core Size | 8-bit |
| Speed | 20 MHz |
| Flash Memory | 8 KB (8K x 8) |
| Напряжение питания | 2.5 V / 3.3 V |
| Корпус | 16-QFN-EP (5x5 mm), Exposed Pad |
| Тип монтажа | Surface Mount |
| Architecture | S08 |
| Instruction Set | CISC |
| Peripherals | ADC, POR, PWM, WDT |
| Data Converters | A/D 8x10-bit |
| Статус RoHS | RoHS3 (per Mouser ROO listing) |
| Pin Pitch | 0.5 mm (QFN-16 class) |
Конфигурация выводов MC9S08QG84CFFE
| Контакт 1 | VDD — Power supply input (2.5 V / 3.3 V) |
| Контакт 2 | VSS — Ground reference |
| Контакт 3 | PTB0 — General-purpose I/O port B, bit 0 (ADC/KBI muxed) |
| Контакт 4 | PTB1 — General-purpose I/O port B, bit 1 (ADC/KBI muxed) |
| Контакт 5 | PTB2 — General-purpose I/O port B, bit 2 (ADC/KBI muxed) |
| Контакт 6 | PTB3 — General-purpose I/O port B, bit 3 (ADC/KBI muxed) |
| Контакт 7 | PTB4 — General-purpose I/O port B, bit 4 (ADC/KBI muxed) |
| Контакт 8 | PTB5 — General-purpose I/O port B, bit 5 (ADC/KBI muxed) |
| Контакт 9 | PTB6 — General-purpose I/O port B, bit 6 (ADC/KBI muxed) |
| Контакт 10 | PTB7 — General-purpose I/O port B, bit 7 (ADC/KBI muxed) |
| Контакт 11 | PTA0 — General-purpose I/O port A, bit 0 (IRQ/KBI muxed) |
| Контакт 12 | PTA1 — General-purpose I/O port A, bit 1 (KBI muxed) |
| Контакт 13 | PTA2 — General-purpose I/O port A, bit 2 (KBI muxed) |
| Контакт 14 | PTA3/EXTAL — General-purpose I/O / crystal oscillator input (muxed) |
| Контакт 15 | PTA4/XTAL — General-purpose I/O / crystal oscillator output (muxed) |
| Контакт 16 | BKGD/MS — Background debug / mode select (single-pin debug interface) |
Типичное применение
MC9S08QG84CFFE подходит для 6 применениеs: Battery-Powered Consumer Devices, Sensor Conditioning and Data Acquisition, Small Appliance and Home Device Control, LED Lighting and Backlight Control, Industrial Subsystem and Legacy Maintenance, Portable Medical and Health Monitoring Accessories.
Battery-Powered Consumer Devices
The MC9S08QG84CFFE suits battery-powered products because the S08QG family was explicitly designed by NXP for low-power, small-package embedded control. The 2.5V/3.3V supply range allows direct operation from two alkaline cells or a single lithium cell through regulation, and S08 stop/wait modes cut average current in duty-cycled designs such as remote controls, timers, and personal care devices. The internal clock source eliminates crystal current and board area, and the 8-channel 10-bit ADC supports battery-voltage and button-press monitoring without external components. With 8 KB flash and a 16-QFN 5x5 mm footprint, the device covers firmware for UI, timing, and power management in roughly 25 square millimeters of PCB space.
Рекомендуется
Sensor Conditioning and Data Acquisition
In sensor front ends, the MC9S08QG84CFFE combines an 8-channel 10-bit ADC with the S08 core at 20 MHz, letting one chip sample multiple analog channels, apply averaging or calibration in firmware, and stream results over SCI (UART) or IIC to a host. The 2.5V supply option matches precision analog references and bridge sensors that require low excitation voltages, while the exposed-pad QFN package provides a solid ground reference that reduces ADC noise pickup. The 8 KB flash accommodates compensation tables and calibration routines typical of temperature, humidity, or pressure sensing nodes. For applications demanding better than 10-bit resolution, the MCU can drive external delta-sigma converters over IIC, complementing its on-chip converter.
Рекомендуется
Small Appliance and Home Device Control
Appliance control boards frequently need only a handful of digital I/O, one or two PWM outputs, and simple analog sensing - exactly the profile of the MC9S08QG84CFFE. The 20 MHz S08 core handles state machines for button interfaces, indicator LEDs, and motor or relay timing with margin, while the watchdog timer and power-on reset improve robustness in mains-adjacent environments. The 16-QFN-EP package keeps the controller footprint small on cost-driven single-sided-heavy layouts, and 2.5V/3.3V operation interfaces cleanly with common logic families. The BKGD single-pin background debug interface allows in-circuit reprogramming of the 8 KB flash during production calibration without removing the board from fixtures.
Рекомендуется
LED Lighting and Backlight Control
The MC9S08QG84CFFE provides the timer/PWM peripherals needed for LED dimming, color mixing, and strobe control in a 16-pin device. Firmware-generated or hardware PWM from the S08 timers drives MOSFET gates or constant-current driver enable pins, and the 10-bit ADC can close the loop by measuring current-sense resistors or photodiode feedback for luminance regulation. Operating from 2.5V/3.3V rails matches gate-driver logic levels, and the 20 MHz bus clock gives adequate resolution for flicker-free dimming frequencies above 200 Hz. The 8 KB flash stores dimming curves, communication protocols (DALI-like serial), and thermal derating logic within a 5x5 mm QFN footprint suited to driver-board corners.
Рекомендуется
Industrial Subsystem and Legacy Maintenance
For industrial equipment already designed around the Freescale S08 architecture, the MC9S08QG84CFFE is the continuity choice: it preserves register-level software compatibility, the single-pin BKGD debug workflow, and the proven 16-QFN footprint, letting manufacturers service installed bases without redesign. Typical roles include small control nodes for actuators, limit-switch monitoring via the ADC and digital inputs, and SCI-linked remote I/O feeding a larger PLC or gateway. The watchdog and power-on-reset features meet basic industrial reliability expectations, and supply through Rochester Electronics supports long-term availability commitments. The 2.5V/3.3V rails simplify integration with modern 3.3V industrial sensor networks replacing older 5V designs.
Рекомендуется
Portable Medical and Health Monitoring Accessories
Battery-operated health accessories - thermometers, pedometers, simple monitor dongles - benefit from the MC9S08QG84CFFE's low-power S08 architecture and integrated 10-bit ADC. The 2.5V supply option lets the MCU run directly from a coin-cell-boosted rail, and stop modes extend standby life between measurements. The 8 KB flash is sufficient for measurement algorithms, offset calibration, and an SCI or IIC link to a Bluetooth or USB bridge chip. The compact 16-QFN-EP package fits slim handheld housings, while the exposed pad provides the low-impedance ground needed for consistent ADC readings from biopotential or temperature front ends. Firmware in-circuit reprogramming supports field updates via the BKGD pin during service.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для MC9S08QG84CFFE — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | MC9S08QG8CFFE | MC9S08QG8CFDE | MC9S08QG4CFFE | MC9S08QG4CFDE | MC9S08QG8CFJE |
|---|---|---|---|---|---|---|
| Package | 16-QFN-EP (5x5 mm) | 16-QFN-EP (5x5 mm) - same | 16-QFN-EP (5x5 mm) - same | 16-QFN-EP (5x5 mm) - same | 16-QFN-EP (5x5 mm) - same | 16-QFN-EP (5x5 mm) - same |
| Brand | NXP Semiconductors (Freescale) | NXP Semiconductors (Freescale) | NXP Semiconductors (Freescale) | NXP Semiconductors (Freescale) | NXP Semiconductors (Freescale) | NXP Semiconductors (Freescale) |
| Core / Architecture | S08 8-bit CISC | S08 8-bit CISC | S08 8-bit CISC | S08 8-bit CISC | S08 8-bit CISC | S08 8-bit CISC |
| Flash Memory | 8 KB (8K x 8) | 8 KB (8K x 8) | 8 KB (8K x 8) | 4 KB | 4 KB | 8 KB (8K x 8) |
| Max Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Supply Voltage | 2.5 V / 3.3 V | 2.5 V / 3.3 V | 2.5 V / 3.3 V | 2.5 V / 3.3 V | 2.5 V / 3.3 V | 2.5 V / 3.3 V |
Ключевые отличия
- Double the program memory of the QG4 variant (против MC9S08QG4CFFE)
- Integrated 8-channel 10-bit ADC in a 16-pin package (против MC9S08QG8CFFE (family level))
- Legacy S08 software compatibility (против Modern NXP Cortex-M0+ MCUs (not drop-in))
Заметки по проектированию
The exposed pad on the 16-QFN-EP (5x5 mm) package is the primary ground connection and must be soldered to a grounded land pattern; rely on the perimeter pins alone for ground and you risk elevated ground bounce and degraded ADC accuracy. Use a via array under the exposed pad to tie it to the ground plane. Keep the 0.1 uF VDD decoupling capacitor within 2 mm of the VDD pin and place one bulk 4.7-10 uF capacitor per supply rail. These practices follow standard Freescale/NXP S08 hardware design guidance in the QG reference manual.
The MC9S08QG84CFFE operates at 2.5V or 3.3V, but brown-out behavior and flash programming margins depend on the exact rail; do not run near the minimum rail if the firmware uses in-application flash programming. For battery designs, monitor VDD with the internal ADC battery-level channel and enter stop mode before the rail droops below the specified operating minimum. Estimated: at a typical S08 stop-mode current of a few microamps (verify exact figure in the reference manual), a 500 mAh cell supports years of standby in duty-cycled applications.
The BKGD/MS pin is sampled at reset to select operating modes - never leave it floating or load it heavily during power-up, or the device may enter an unintended debug/mode state. If the internal clock source is used instead of a crystal, remember that ADC accuracy tolerances are wider; applications requiring precise analog conversions should use the crystal option on PTA3/PTA4 and calibrate the internal oscillator in firmware. Also confirm the exact temperature-grade suffix (CFF) of the ordering code matches your environmental requirements before finalizing BOMs.
Информация о соответствии
Mouser listing indicates RoHS (ROO marking) for this part. REACH, halogen-free, and conflict-minerals status not stated in the retrieved data - confirm on the NXP product page.
