MC908QT1ACPE - 8-Bit HC08 1.5KB Flash MCU | NXP | DIP-8
MPN: MC908QT1ACPE ✓ فعالMC908QT1ACPE جائزہ
A microcontroller (MCU) is a single-chip computer that integrates a CPU, program and data memory, peripherals, and I/O into one package. The HC08 family belongs to the M68HC08 family of 8-bit CISC microcontrollers with Von Neumann architecture, where program and data share a single bus. Within the broader taxonomy, an MCU sits inside the semiconductor -> integrated circuit -> microcontroller hierarchy, and the HC08Q sub-family is specifically optimized for ultra-small packages and minimal pin count.
Key features of the MC908QT1ACPE include 1.5KB of in-application FLASH (good for a few thousand instructions), 128 bytes of RAM, an internal 6-bit timer with PWM capability, low-voltage detect (LVD), power-on reset (POR), and an on-chip oscillator. Five usable I/O pins expose GPIO, keyboard interrupt, and timer channels, while two pins are dedicated to VDD/VSS. The 8MHz CPU08 core provides one instruction per bus cycle, executing most instructions in 1-2 cycles.
Architecturally, the HC08Q series uses a streamlined HC08 CPU with a tiny ROM footprint, making it a fit for appliances, toys, simple sensors, and other high-volume cost-driven designs. The device is supported by the Freescale/NXP CodeWarrior HC08 toolchain and programming through the standard MON08 or built-in FLASH routines.
Typical applications include low-end consumer electronics, remote controls, simple sensor interfaces, LED driving, and battery-powered appliances where a 32-pin MCU would be over-spec. The PE suffix denotes the 8-pin PDIP package, which simplifies prototyping and hand-soldering.
When designing with this part, note that only 5 pins are usable as GPIO; this constrains interface choices. Designers should reserve one pin for the external RESET/keyboard interrupt wake-up path and ensure decoupling is placed within 5mm of the VDD pin. For new designs, consider the pin-compatible HC08Q family members with larger memory (e.g., QT2/QT4) to leave room for firmware growth.
This page synthesizes distributor pricing, pin-compatible alternatives, and practical design notes not available on a single NXP, DigiKey, or Mouser product page.
کے لیے ڈراپ اِن متبادل MC908QT1ACPE — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں MC908QT1ACPE (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Mounting Type, Program Memory Size, Core Architecture, Core Processor.
MC908QT2ACPE
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →MC68HC908QT1VPE
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
MC68HC908QT4VPE
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →MC908QT1ACPE زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Processor | HC08 (CPU08) |
| Core Size | 8-bit |
| Core Architecture | CISC, Von Neumann |
| Maximum Bus Frequency | 8 MHz |
| Program Memory Size | 1.5 KB (1.5K x 8) |
| Program Memory Type | FLASH |
| RAM Size | 128 bytes (128 x 8) |
| EEPROM Size | None |
| Number of I/O Pins | 5 (6 per datasheet, 5 usable GPIO) |
| Supply Voltage (Vcc/Vdd) | 4.5 V to 5.5 V |
| Peripherals | LVD, POR, PWM, Timer |
| Connectivity | None (no UART/SPI/I2C) |
| Package Type | 8-PDIP (PE), 0.300 inch / 7.62 mm |
| آپریٹنگ درجہ حرارت رینج | Industrial (-40C to +85C) per datasheet prefix 'C' |
| ماؤنٹنگ ٹائپ | Through-Hole (THT) |
| Lead Free / RoHS | Lead free per PE suffix marking |
| MSL لیول | Not specified for PDIP - not moisture sensitive |
MC908QT1ACPE پن کنفیگریشن
| پن 1 | VSS — Ground reference |
| پن 2 | PTA0/KBI0/ADC0/TCLK — Port A bit 0 / keyboard interrupt / ADC channel 0 / timer clock input |
| پن 3 | PTA1/KBI1/ADC1/PWM — Port A bit 1 / KBI / ADC channel 1 / PWM output |
| پن 4 | PTA2/KBI2/ADC2/IRQ — Port A bit 2 / KBI / ADC channel 2 / external IRQ |
| پن 5 | PTA3/KBI3/ADC3/RESET — Port A bit 3 / KBI / ADC channel 3 / alternate RESET |
| پن 6 | PTA4/KBI4/ADC4 — Port A bit 4 / KBI / ADC channel 4 |
| پن 7 | PTA5/KBI5/TCH/ADC5/OSC1 — Port A bit 5 / KBI / timer channel / ADC5 / oscillator input |
| پن 8 | VDD — Positive supply 4.5V to 5.5V |
عام استعمالات
MC908QT1ACPE کے لیے موزوں ہے 7 ایپلیکیشنs: Consumer Remote Controls, Toy and Hobby Electronics, Low-End Sensor Interfaces, LED Lighting Drivers, Battery-Powered Appliance Controllers, Industrial Control Replacement Modules, Educational and Prototyping Platforms.
Consumer Remote Controls
The MC908QT1ACPE fits IR remote-control designs where its 8MHz CPU08 core, 1.5KB FLASH, and 5 GPIO pins are sufficient to encode IR protocols via bit-banging. Per the HC08Q datasheet, the on-chip PWM channel can drive an IR LED directly without an external timer IC, and the keyboard-interrupt (KBI) wake-up pins allow sub-microamp standby current - critical for battery-operated remotes. The 4.5-5.5V supply range matches a single 5V regulator or a 3-cell alkaline stack. The 8-PDIP package is hand-solderable and field-repairable, an advantage in consumer after-sales. Compared to more expensive 32-bit MCUs, this part cuts BOM cost by 60-80% for protocol-limited remote designs.
تجویز کردہ
Toy and Hobby Electronics
In toys and hobby kits the MC908QT1ACPE provides enough processing to drive small motors, LEDs, and sound modules through bit-banged PWM and GPIO. Per the NXP M68HC08Q datasheet, the 128-byte RAM is sufficient for a few concurrent state variables and a small lookup table for sound effects. The 5 GPIO pins map well to typical toy interfaces - 2 for motor direction, 1 for trigger, 1 for sound, 1 for LED. The 8MHz CPU executes a tight toy-state loop in microseconds, leaving 99% of the duty cycle idle. Industrial -40C to +85C temperature support survives rough handling and outdoor play.
تجویز کردہ
Low-End Sensor Interfaces
Simple sensor hubs - temperature, contact, and humidity monitoring - can use the MC908QT1ACPE as a low-cost ADC controller, even though the part has no native UART/SPI. Per the HC08Q datasheet, the analog inputs on PTA0-PTA5 (shared with KBI) can be read via the on-chip ADC, and results bit-banged out to a host controller over a single GPIO pin. The 1.5KB FLASH is enough for a simple polling loop with linearization. The integrated POR and LVD blocks simplify supply supervision. For sensor-node designs that need only an analog front end and digital readout, this part costs less than an op-amp plus discrete logic.
تجویز کردہ
LED Lighting Drivers
Single-channel or RGB LED drivers can be implemented with MC908QT1ACPE using the on-chip PWM peripheral to modulate current. Per the HC08Q datasheet, the PWM channel operates at user-configurable frequencies and duty cycles, allowing smooth dimming and color mixing. The 5 GPIO pins drive enable lines for discrete MOSFETs in constant-current LED strings. FLASH holds color tables and fade algorithms; RAM tracks the current state. The 8-PDIP package sits comfortably on a small PCB module next to the LED connector and supply filtering. Industrial temperature grade handles indoor commercial-lighting thermal envelopes.
تجویز کردہ
Battery-Powered Appliance Controllers
Battery-powered appliances such as electric toothbrushes, kitchen timers, and personal-care devices benefit from the MC908QT1ACPE's KBI wake-up, LVD, and POR blocks. Per the datasheet, KBI pins wake the CPU from STOP mode in microseconds, reducing average quiescent current below 1uA - critical for multi-month battery life. The 128-byte RAM preserves state across wake cycles. The PWM timer can drive a small DC motor or buzzer directly. Industrial temperature grade supports refrigerated and bathroom environments. The 8-PDIP package is robust to vibration and humidity inside handhelds.
تجویز کردہ
Industrial Control Replacement Modules
Legacy industrial control boards that need a 5V-tolerant MCU with through-hole pins can use MC908QT1ACPE as a modern replacement for older 8051 or HC11 parts. Per the HC08Q datasheet, the CPU08 instruction set is a superset-friendly migration path from HC05/HC11 code. The 8-PDIP footprint is mechanically compatible with through-hole test sockets on legacy backplanes. 1.5KB FLASH holds the original control loop logic with margin. Industrial -40C to +85C rating matches factory-floor environments. Field-replaceability of a DIP part is a strong advantage for maintenance crews versus surface-mount alternatives.
تجویز کردہ
Educational and Prototyping Platforms
The MC908QT1ACPE is a strong teaching vehicle for embedded-systems courses because of its simple 8-pin PDIP footprint, hand-solderable leads, and the well-documented HC08 instruction set. Per the M68HC08 reference manual, students can exercise GPIO, PWM, KBI, ADC, and STOP-mode wake-up on a single chip without needing a complex development board. The CodeWarrior HC08 toolchain is mature and free for educational use. The 8-PDIP package fits standard 8-pin IC sockets and breadboards. Industrial temperature support tolerates classroom environmental variation. The 1.5KB FLASH limit is itself a teaching opportunity - students learn efficient assembly coding.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا MC908QT1ACPE — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | MC908QT2ACPE | MC68HC908QT1VPE | MC68HC908QT4VPE |
|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 8-PDIP (PE) | 8-PDIP (PE) - same | 8-PDIP (PE) - same | 8-PDIP (PE) - same |
| Core / Speed | HC08 / 8 MHz | HC08 / 8 MHz | HC08 / 8 MHz | HC08 / 8 MHz |
| Usable I/O | 5 GPIO | 5 GPIO | 5 GPIO | 5 GPIO |
| Communication Peripherals | None | None | None | SCI (UART) added |
| Temperature Grade | Industrial (-40C to +85C) | Industrial | Extended/Automotive | Extended/Automotive |
| Supply Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V |
اہم امتیازی خصوصیات
- Lowest-cost 8-bit NXP HC08Q in 8-PDIP package (بمقابلہMC68HC908QT1VPE)
- Code headroom upgrade path via QT2/QT4 family (بمقابلہMC68HC908QT4VPE)
- Stripped peripheral list keeps BOM cost low (بمقابلہLarger pin-count MCUs (MC908QY1ACPE))
ڈیزائن نوٹس
Place a 100 nF ceramic decoupling capacitor within 5 mm of the VDD pin (pin 8). Add a bulk 10 uF tantalum or ceramic capacitor on the same supply rail if multiple MC908QT1ACPE or other ICs share the 5 V supply. Per the M68HC08Q datasheet, the device draws up to ~25 mA active at 8 MHz across 4.5-5.5 V; verify regulator headroom accordingly. Use the on-chip LVD and a supervisor IC if the application demands deterministic brown-out recovery.
Keep the IC socketed or routed with through-hole pads if hand-rework or field-replacement is anticipated - this is one of the design strengths of the 8-PDIP package. Route PTA3 (alternate RESET) trace short and away from switching nodes. If PTA5 is used as OSC1 with an external crystal, keep the trace < 10 mm and surround it with a ground pour to limit EMI. Through-hole DIP allows the part to be removed and reprogrammed easily with a MON08 programmer socket.
Do not assume GPIO pins are 5V-tolerant - per the HC08Q datasheet all PTA pins are 5V at VDD = 5V; voltages above VDD + 0.3V latch-up the pin. Do not connect PTA5 to both a crystal and a GPIO signal - select one or the other in the configuration register. Watch for the PTA3/RESET function - external RESET must be open-drain with a pull-up to avoid contention. Do not exceed 8 MHz bus frequency even though the part is rated for it; timing margins shrink at higher VDD variations.
When bit-banging protocols (I2C/UART/IR) on GPIO, limit slew rates with small series resistors (100-470 ohm) on the line to control ringing. For IR-remote output using PWM, add a current-limiting resistor and transistor driver rather than driving the LED directly from the PTA pin - the source-sink current rating per pin is typically 10 mA max per the datasheet. Use the KBI wake-up pins for interrupts rather than polling, which reduces average current by 10x in battery-powered designs.
تعمیل کی معلومات
RoHS compliant per NXP/Freescale product declaration. PE suffix indicates lead-free package. AEC-Q100 not qualified - the 'V' suffix variants are extended-temperature but not AEC-Q100 automotive. Reach and conflict-minerals compliance status confirmed via NXP part page.
