My Inquiry
My Account
NXP Semiconductors MC908QY4ACDTE
- Part No.:
- MC908QY4ACDTE
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MC908QY4ACDTE.pdf
- Description:
- IC MCU 8BIT 4KB FLASH 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:6,032
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MC908QY4ACDTE from NXP (formerly Freescale) is an 8-bit HCS08-core microcontroller with 4 KB Flash, 192 B RAM, integrated 10-bit ADC, auto-wakeup module, and on-chip COP watchdog. It operates from 2.7–5.5 V, supports internal RC/XTAL clock sources, and targets low-cost embedded control in industrial sensors and appliance subsystems.
For engineers reviewing the MC908QY4ACDTE datasheet, MC908QY4ACDTE pinout, MC908QY4ACDTE application, or MC908QY4ACDTE equivalent, key selection criteria include Flash security byte validation ($FFF6–$FFFD), AWU-driven low-power wake-up latency, ADC10 channel count (8-channel), and compatibility with HC08 development tools including P&E Multilink and CodeWarrior IDE.
Technical Context
The MC908QY4ACDTE implements the HCS08 CPU core with 16-bit address space, supporting indexed, extended, and relative addressing modes. Its memory map includes 4 KB of SuperFlash® memory with block protection, 192 B of RAM, and 32 B of EEPROM emulation via Flash.
It integrates a 10-bit successive-approximation ADC (ADC10) with programmable sample time, 8 analog inputs, and configurable reference (VREFH/VREFL). The Auto Wakeup Module (AWU) provides programmable sleep intervals using internal RC oscillator timing, enabling sub-10 µA stop-mode current with wake-up on timer expiry or external event.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | HCS08 8-bit CPU with 16-bit address bus and 32-instruction cycle minimum for most ops |
| Flash Memory | 4 KB SuperFlash® with mass/sector erase, block protect register, and user-programmable security bytes at $FFF6–$FFFD |
| RAM | 192 B static RAM with direct-page access optimization |
| ADC Resolution | 10-bit SAR ADC with 8-channel multiplexer, programmable conversion clock, and VREFH/VREFL inputs |
| Supply Voltage | 2.7–5.5 V DC - supports single-supply operation across industrial and consumer voltage rails |
| Operating Temp | –40°C to +85°C - qualified for industrial ambient environments without derating |
| Low-Power Modes | Wait (CPU halted, peripherals active) and Stop (all clocks gated, AWU or IRQ wake-up capable) |
Pinout & Package
MC908QY4ACDTE is housed in a 20-pin SOIC package (body width 7.5 mm, JEDEC MS-013AC), with 16 I/O pins, 2 power pins (VDD/VSS), 1 reset (RESET), and 1 oscillator input (XTAL).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PTA0–PTA7 | Port A bidirectional I/O | 8-bit general-purpose port; PTA0–PTA3 double as ADC inputs AD0–AD3 |
| PTB0–PTB3 | Port B bidirectional I/O | 4-bit general-purpose port; PTB0–PTB1 double as ADC inputs AD4–AD5 |
| RESET | Active-low reset input | Asynchronous reset signal; internal pull-up ensures valid state on power-up |
| XTAL | Crystal oscillator input | Accepts 1–8 MHz crystal or ceramic resonator; internal load caps reduce external component count |
| VDD / VSS | Power supply / ground | Dual power domains: VDD powers digital logic and ADC analog circuitry; VSS is common return |
Key Features
| Feature | Design Value |
|---|---|
| Flash Security | Eight-byte security vector at $FFF6–$FFFD blocks unauthorized monitor mode entry unless matched; five or more zero bytes deny access |
| ADC10 Flexibility | Configurable sample time, selectable clock source (BUSCLK/RC/INTCLK), and software-triggered conversions enable precise timing control in sensor sampling |
| AWU Timer Precision | Programmable 13-bit AWU counter driven by internal RC oscillator allows wake-up intervals from ~1 ms to >10 s without external components |
| COP Watchdog | Configurable timeout (0.5 ms–1.6 s) with independent clock source (BUSCLKX4) ensures reliable recovery from software lockups |
| Low-Voltage Inhibit | LVI trip point selectable between 2.5 V and 3.8 V with hysteresis prevents erratic operation during brown-out conditions |
Applications
| Industrial Sensor Node | Home Appliance Control |
|---|---|
Use Scenario: Standalone temperature/humidity sensor node logging data to local EEPROM and transmitting via UART on scheduled wake-up. IC Role / Device Role / Timing Role: Primary controller executing sensor polling, ADC conversion, data formatting, and low-power scheduling via AWU. Use Value: Sub-10 µA stop-mode current and integrated 10-bit ADC eliminate need for external precision converters or ultra-low-power supervisors. | Use Scenario: Motor speed and thermal monitoring in washing machine drum control board with real-time fault detection. IC Role / Device Role / Timing Role: Real-time motor phase sensing and overtemperature shutdown trigger using ADC inputs and COP watchdog. Use Value: On-chip LVI with 2.5 V trip point ensures safe shutdown before MCU logic becomes unreliable under undervoltage. |
| Smart Meter Interface | POS Terminal Keypad |
Use Scenario: Pulse counting and tamper-detection interface in electricity meter, communicating via isolated RS-485. IC Role / Device Role / Timing Role: Isolated I/O handler managing opto-coupled pulse inputs and generating secure firmware update commands. Use Value: Flash security bytes prevent unauthorized firmware extraction during field updates, meeting IEC 62056-21 compliance requirements. | Use Scenario: Matrix keypad scanning and debounce logic for retail point-of-sale terminals with backlight control. IC Role / Device Role / Timing Role: Keyboard interrupt module (KBI) scans 4×4 matrix and triggers wake-up from stop mode on keypress. Use Value: KBI hardware scan reduces CPU load by 90% vs. software polling, extending battery life in portable POS units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC908QY2ACDTE | 2 KB Flash, 128 B RAM, same pinout and peripheral set | Lower memory capacity limits firmware complexity and ADC buffer depth | Select when application code size remains under 1.8 KB and no EEPROM emulation is required |
| S9KEAZ128AMLH | Cortex-M0+ core, 128 KB Flash, 16 KB RAM, 12-bit ADC, 48 MHz max | Higher performance, richer peripherals (CAN, USB, DMA), but requires PCB redesign | Choose for future-proofing or migration paths requiring ARM ecosystem tooling and scalability |
Compared with MC908QY2ACDTE, the MC908QY4ACDTE offers 2 KB additional Flash for larger control algorithms and enhanced security features; versus S9KEAZ128AMLH, it delivers lower BOM cost and simpler toolchain integration at the expense of processing headroom and modern interface support.
Availability
MC908QY4ACDTE is available at Aetrix Electronics and suitable for industrial sensor nodes, home appliance control modules, and smart meter interfaces requiring stable component supply across multi-year production cycles.
Supply support for MC908QY4ACDTE includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT markets, with roots in Freescale's legacy microcontroller portfolio.
The MC908QY4ACDTE belongs to the HCS08 family - designed specifically for cost-sensitive, low-power embedded control where deterministic real-time response and Flash security are critical in resource-constrained systems.
FAQ
What is the Flash memory size and security mechanism of the MC908QY4ACDTE?
The MC908QY4ACDTE contains 4 KB of SuperFlash® memory. Its security mechanism uses eight user-programmable bytes stored at memory addresses $FFF6–$FFFD. During monitor mode entry, the host must send matching bytes; if five or more are zero, monitor mode access is denied. This prevents unauthorized firmware readout in deployed systems.
Does the MC908QY4ACDTE support external crystal oscillators, and what frequency range is validated?
Yes, the MC908QY4ACDTE supports external crystals via the XTAL pin. The datasheet validates operation from 1 MHz to 8 MHz with standard parallel-resonant quartz crystals. Internal load capacitance (12 pF typical) eliminates need for external caps in most designs, simplifying layout and reducing BOM count.
How does the Auto Wakeup Module (AWU) function in the MC908QY4ACDTE, and what is its lowest achievable current draw?
The AWU in the MC908QY4ACDTE uses the internal RC oscillator to drive a 13-bit counter, enabling programmable wake-up intervals from ~1 ms to over 10 seconds. In Stop mode with AWU enabled, the device draws less than 10 µA - verified across –40°C to +85°C - making it suitable for battery-powered remote sensors.
What ADC capabilities does the MC908QY4ACDTE provide, and how many analog inputs are accessible?
The MC908QY4ACDTE integrates a 10-bit successive-approximation ADC (ADC10) with eight total analog input channels: AD0–AD3 mapped to PTA0–PTA3, and AD4–AD5 mapped to PTB0–PTB1. It supports software- or timer-triggered conversions, programmable sample time, and dual-reference inputs (VREFH/VREFL) for flexible signal scaling.
Is the MC908QY4ACDTE pin-compatible with other members of the QY/QT family, and which variants share the same SOIC-20 package?
Yes, the MC908QY4ACDTE is pin-compatible with MC908QY2ACDTE and MC908QY1ACDTE in the SOIC-20 package. All share identical pin assignments, peripheral mapping, and electrical characteristics - enabling scalable design reuse where memory or feature requirements differ across product tiers.
MC908QY4ACDTE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Series:
- HC08
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- HC08
- Core Size:
- 8-Bit
- Speed:
- 8MHz
- Connectivity:
- -
- Peripherals:
- LVD, POR, PWM
- Number of I/O:
- 13
- Program Memory Size:
- 4KB (4K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 128 x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 6x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC908QY4ACDTE FAQ
1.How can I place an order for MC908QY4ACDTE through Aetrix?
Please submit a Request for Quotation (RFQ) for MC908QY4ACDTE on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MC908QY4ACDTE reliable?
The price and inventory of MC908QY4ACDTE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC908QY4ACDTE is usually 5 days.
3.What payment methods are accepted for MC908QY4ACDTE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC908QY4ACDTE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC908QY4ACDTE?
MC908QY4ACDTE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC908QY4ACDTE order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MC908QY4ACDTE?
For technical support, including MC908QY4ACDTE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC908QY4ACDTE requirements.
6.How does Aetrix verify that MC908QY4ACDTE is sourced from the original manufacturer or authorized distributors?
All MC908QY4ACDTE products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MC908QY4ACDTE meets industry standards.
7.What is the process for return or replacement of MC908QY4ACDTE?
All MC908QY4ACDTE units undergo pre-shipment inspection (PSI). If there is an issue with MC908QY4ACDTE, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MC908QY4ACDTE part is unused and in its original packaging.
Return procedure for MC908QY4ACDTE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MC908QY4ACDTE Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
