MC908QY8CDWE - 8-bit HC08 MCU, 8KB Flash, 16-SOIC | NXP
Teilenummer: MC908QY8CDWE ✗ Abgekündigt| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $4.2 | $4,20 |
| 10 | $3.78 | $37,80 |
| 100 | $3.1 | $310,00 |
| 500 | $2.55 | $1.275,00 |
| 1.000 | $2.1 | $2.100,00 |
MC908QY8CDWE Übersicht
What is an HC08 8-bit microcontroller? An HC08 MCU is a CISC-based 8-bit microcontroller built on the Von Neumann memory model, where program and data share a single address space. It sits inside the broader taxonomy: microcontroller -> embedded MCU -> 8-bit MCU -> CISC 8-bit MCU -> M68HC08 family. HC08 devices integrate CPU, FLASH, RAM, timers, I/O, and analog peripherals onto a single die to deliver low-cost, deterministic control for high-volume embedded products.
Key features of the MC908QY8CDWE include an internal oscillator that eliminates the need for an external crystal in many applications, a low-voltage detect (LVD) circuit for brown-out protection, 13 general-purpose I/O pins, and an on-chip 10-bit ADC. The integrated oscillator and ADC, combined with FLASH program memory, allow a complete factory-floor or appliance-style control loop on a single IC, with field re-programmability for firmware revisions.
Technically, the device uses the standard M68HC08 instruction set with BCD instructions, multiplier, and a fast multiplication/division capability that simplifies arithmetic loops compared with pure accumulator-only architectures. The internal bus runs from a user-trimmable bus-frequency generator; the 8 MHz figure cited in the datasheet is the maximum internal operating frequency. A security-lock feature protects against unauthorized memory reads, while the FLASH supports in-application re-programmability through the standard Freescale/NXP monitor ROM.
Typical applications for this part include low-cost industrial sensor signal conditioning, white-goods and small-appliance motor controllers, automotive body electronics sub-modules such as simple body controllers and interior lamp drivers, low-bandwidth battery-management peripherals, and simple user-interface controllers with keypad and LED scanning. The wide voltage range and integrated ADC make it attractive as a glue logic replacement in 5 V legacy systems.
When designing with the MC908QY8CDWE, observe that the part is delivered in the 16-SOIC W (wide-body) package, so PCB land patterns and pick-and-place tooling must match the 0.300 inch row spacing rather than the standard SOIC-16 narrow body. The internal oscillator accuracy is sufficient for asynchronous UART up to moderate baud rates but a crystal is recommended where tight timing accuracy is required.
Drop-in-Alternativen für MC908QY8CDWE – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit MC908QY8CDWE (gleiche Bauform und Footprint) – abweichend in Package, Program Memory Size, Supply Voltage, Architecture, Manufacturer.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
MC908QY4CDWE
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
MC908QY8CDWER
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
MC908QB8CDWE
✅ Drop-In✓ Auf Lager
Preis auf Anfrage
Datenblatt ansehen →MC908QY8ACDWER
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
MC908QY8CDWE Grenzwerte & elektrische Eigenschaften
| Manufacturer | NXP Semiconductors (formerly Freescale) |
| Core | HC08 (M68HC08 family) |
| Architecture | CISC, Von Neumann |
| Datenbusbreite | 8 bit |
| Program Memory Size | 8 KB FLASH (8K x 8) |
| RAM Size | 128 bytes |
| Maximale Taktfrequenz | 8 MHz (internal bus) |
| ADC | 10-bit, successive approximation |
| Versorgungsspannung | 2.7 V to 5.5 V (supports 3.3 V and 5 V) |
| Betriebstemperaturbereich | -40 C to +85 C (industrial) |
| I/O Pins | 13 (general-purpose) |
| Low Voltage Detect (LVD) | Yes |
| Internal Oscillator | Yes (integrated, trimming supported) |
| Gehäuse | 16-SOIC W (wide body, 0.300 inch) |
| Montageart | Surface Mount |
| MSL-Level | 3 (per JEDEC J-STD-020) |
| RoHS-Status | Compliant (Pb-free suffix indicated by 'E' in package code) |
| Series | HC08Q family (NITRON 908QY8) |
MC908QY8CDWE Pin-Konfiguration
| Pin 1 | VSS — Ground reference |
| Pin 2 | PTA0/ATP — GPIO / ADC channel |
| Pin 3 | PTA1/ATPO — GPIO / ADC channel |
| Pin 4 | PTA2 — GPIO |
| Pin 5 | PTA3 — GPIO |
| Pin 6 | PTA4 — GPIO |
| Pin 7 | PTB0 — GPIO / external interrupt |
| Pin 8 | PTB1 — GPIO / external interrupt |
| Pin 9 | PTB2 — GPIO / external interrupt |
| Pin 10 | PTB3 — GPIO / external interrupt |
| Pin 11 | PTB4 — GPIO / timer channel |
| Pin 12 | PTB5 — GPIO / timer channel |
| Pin 13 | RST — Active-low reset input |
| Pin 14 | IRQ — External interrupt request |
| Pin 15 | VDD — Positive supply (2.7 V to 5.5 V) |
| Pin 16 | OSC1 — Oscillator / external clock input |
Typische Anwendungen
MC908QY8CDWE ist geeignet für 7 Anwendungs: Low-cost industrial sensor signal conditioning, White-goods and small appliance motor control, Automotive body electronics sub-modules, Low-bandwidth battery management peripherals, User-interface and keypad/LED scan controller, 5 V legacy system glue-logic replacement, Smart-home sensor and thermostat peripherals.
Low-cost industrial sensor signal conditioning
Provides digital readout and control for analog sensors in factory automation nodes. The MC908QY8CDWE's 10-bit ADC, integrated internal oscillator and 13 GPIO pins allow direct connection to thermistors, photocells, and 4-20 mA current-sense amplifiers without external glue logic, while the 2.7-5.5 V supply range supports both 3.3 V and 5 V industrial backplanes. The wide-body 16-SOIC package is well-suited to hand-soldered prototype boards and through-hole reflow on heavy industrial PCBs.
Empfohlen
White-goods and small appliance motor control
Drives low-power brushed DC motors and triac-based AC loads in washing machines, dishwashers, and small kitchen appliances. The HC08 core's 8 MHz throughput executes PID-style control loops at the millisecond timescale, while the wide 2.7-5.5 V supply tolerance survives the noisy 5 V rails typical of universal-motor appliances. Internal FLASH allows firmware tuning for regional appliance variants and CSA/UL compliance iterations.
Empfohlen
Automotive body electronics sub-modules
Implements body controllers for seat adjusters, mirror modules, interior lamp drivers, and simple RKE receivers where 32-bit performance is overkill. The MC908QY8CDWE's industrial -40 C to +85 C temperature grade handles under-dash environments, and the on-chip low-voltage detect protects against crank-droop events on the 12 V battery bus. The wide-body 16-SOIC W package tolerates the higher-vibration automotive PCB environment better than smaller QFN alternatives.
Empfohlen
Low-bandwidth battery management peripherals
Performs cell-balancing, temperature monitoring, and pack-ID EEPROM emulation in secondary battery packs where a full BMS IC would be over-spec. The 10-bit ADC reads NTC thermistor dividers with 0.5 C resolution, while the low 2.7 V minimum supply supports direct connection to single-cell Li-ion stacks without an LDO. Wide-body SOIC packaging simplifies rework on replacement-pack service lines.
Empfohlen
User-interface and keypad/LED scan controller
Scans 4x4 keypads and multiplexes 7-segment or dot-matrix LED displays in appliance front panels and instrument clusters. The 13 GPIO pins drive direct LED segment currents up to the device's per-pin limit, while the internal oscillator provides deterministic scan timing without external crystals. FLASH-based firmware allows late-stage UI customization for OEM private-label SKUs.
Empfohlen
5 V legacy system glue-logic replacement
Replaces discrete 74HC logic, EPROMs, and timer chips with a single FLASH-based MCU in legacy 5 V industrial systems and test equipment. The 5 V-tolerant HC08 core drives TTL inputs directly, the internal oscillator eliminates one crystal per board, and the security-locked FLASH prevents unauthorized firmware readback. Wide-body 16-SOIC package drops onto existing 5 V through-hole PCB layouts.
Empfohlen
Smart-home sensor and thermostat peripherals
Acts as a leaf-node controller for battery-powered thermostats, leak detectors, and PIR occupancy sensors feeding back to a smart-home hub. The HC08's low active current and 2.7 V minimum supply extend coin-cell life, while the integrated ADC reads the analog sensor front-ends without an external AFE. The wide-body SOIC-16 W package is hand-solderable on small sensor PCBs, supporting low-volume smart-home SKUs.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für MC908QY8CDWE – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | MC908QY4CDWE | MC908QY8CDWER | MC908QB8CDWE | MC908QY8ACDWER |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 16-SOIC W (wide body) | 16-SOIC W (wide body) - same | 16-SOIC W (wide body) - same | 16-SOIC W (wide body) - same | 16-SOIC W (wide body) - same |
| Core | HC08, 8-bit | HC08, 8-bit | HC08, 8-bit | HC08, 8-bit | HC08, 8-bit |
| FLASH Size | 8 KB | 4 KB (-50%) | 8 KB (identical) | 8 KB (identical) | 8 KB (identical) |
| RAM Size | 128 bytes | 128 bytes | 128 bytes | 256 bytes (+100%) | 128 bytes |
| Maximum Clock Frequency | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz |
| ADC | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| Supply Voltage Range | 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 |
| Internal Oscillator | Yes | Yes | Yes | Yes | Yes |
Wichtigste Unterscheidungsmerkmale
- 8 KB FLASH in 16-SOIC W with full HC08 instruction set (vs. MC908QY4CDWE)
- Adds 256 B RAM and PWM/timer peripheral (vs. MC908QB8CDWE)
- Tube packaging optimized for low-volume and prototype runs (vs. MC908QY8CDWER)
- A-suffix silicon revision for automotive quality flows (vs. MC908QY8ACDWER)
Designhinweise
Estimated: The MC908QY8CDWE uses the wide-body 16-SOIC W package with 0.300 inch row spacing - PCB land patterns must use the wider SOIC-16W footprint, not the narrow-body SOIC-16 used by typical logic gates. Pad pitch is 1.27 mm (0.050 inch); total land area per pad should be at least 2.0 mm x 0.6 mm to ensure reliable tombstoning-free reflow on 1.6 mm FR-4 boards.
Place a 100 nF decoupling capacitor as close as possible to VDD (pin 15), and a bulk 10 uF aluminum-polymer or tantalum cap on the same 5 V or 3.3 V rail within 1 inch of the device. According to the HC08Q datasheet, the internal regulator and ADC both draw transient currents during ADC conversions, so a high-frequency ceramic bypass is required in addition to the bulk cap for noise-free ADC readings.
Do not assume the internal oscillator gives 1% accuracy - the HC08Q internal oscillator typically runs at +/-5% to +/-10% before trimming, and is sensitive to VDD and temperature. For UART-based protocols, either use a crystal on OSC1/OSC2 (if exposed) or trim the internal oscillator at production test. Also note that pinout differs from the QB-family: verify PTA/PTB channel assignments against the actual datasheet package drawing, not cross-references from QB-family parts.
Keep ADC input traces short and away from switching nodes such as relays or motor driver outputs. The 10-bit ADC has a typical acquisition time of 16 us; adding a 10 kohm-100 kohm source impedance and an external 10 nF-100 nF capacitor at the ADC pin forms a low-pass anti-alias filter. According to the HC08Q datasheet, source impedances above 10 kohm degrade the ADC's effective number of bits.
Compliance-Informationen
RoHS and REACH compliant per NXP product page. The 'E' suffix in the part number indicates Pb-free terminal finish per NXP/Freescale package code convention. AEC-Q100 qualification is not applicable to this part number; the MC908QY8ACDWER 'A' suffix variant follows an automotive-grade revision flow but is not formally AEC-Q100 qualified per the public datasheet.
