My Inquiry
My Account
NXP Semiconductors MC9S08QB4CTG
- Part No.:
- MC9S08QB4CTG
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MC9S08QB4CTG.pdf
- Description:
- IC MCU 8BIT 4KB FLASH 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,829
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MC9S08QB4CTG from NXP (formerly Freescale) is an 8-bit HCS08 microcontroller designed for ultra-low-power battery-operated systems. It features 4 KB flash, 512 bytes RAM, 10-bit 8-channel ADC, 16-bit TPM, UART (SCI), analog comparator, 8-keyboard interrupt inputs, and operates from 1.8 V to 3.6 V at up to 20 MHz CPU speed across –40°C to +85°C.
For engineers reviewing the MC9S08QB4CTG datasheet, MC9S08QB4CTG pinout, MC9S08QB4CTG application, or MC9S08QB4CTG equivalent, key selection considerations include its 16-pin TSSOP package, 10-bit ADC resolution (vs. 12-bit in QB8 variants), ultra-low-power stop/run/wait modes, 6 µs wake-up time, and compatibility with QE-family development tools like DEMO9S08QB8.
Technical Context
The MC9S08QB4CTG implements the HCS08 CPU core with backward object-code compatibility to 68HC08/68HC05, supporting bus speeds up to 10 MHz at 1.8 V. Its internal clock system includes an FLL-controlled ICS and a low-power OSC supporting crystal/resonator frequencies from 31.25 kHz to 38.4 kHz or 1–16 MHz.
Peripheral integration includes a single 16-bit TPM channel relocatable to PTA0 or PTB5, SCI with 13-bit break and double-buffered TX/RX, ACMP with internal reference and TPM trigger capability, and an 8-bit MTIM module. All peripherals support clock gating and low-power mode operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | HCS08 8-bit CPU, backward-compatible with 68HC08/68HC05 instruction set |
| Max CPU Speed | 20 MHz at 1.8–3.6 V, enabling high responsiveness in energy-constrained designs |
| Flash Memory | 4 KB on-chip flash, reprogrammable in-application over full voltage/temperature range |
| RAM | 512 bytes with low-retention voltage support and security lock for content protection |
| ADC | 10-bit resolution, 8-channel, 2.5 µs conversion time, operational in low-power stop mode |
| Operating Voltage | 1.8 V to 3.6 V - supports direct alkaline/Li-ion battery input without regulation |
| Temperature Range | –40°C to +85°C - qualified for industrial and residential environmental conditions |
Pinout & Package
MC9S08QB4CTG is housed in a 16-pin thin shrink small-outline package (TSSOP) with 0.65 mm pitch, optimized for compact PCB layouts in space-constrained portable devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual supply pins enable stable core/peripheral operation at 1.8–3.6 V |
| PTA0–PTA7 | General-purpose I/O port A | 8-bit bidirectional port; PTA0 defaults as TPM channel output; all pins support keyboard interrupt |
| PTB0–PTB5 | General-purpose I/O port B | 6-bit bidirectional port; PTB5 supports software-relocatable TPM channel |
| RESET | Active-low reset input | Accepts external reset or internal COP/low-voltage detection assertion |
| OSC1/EXTAL, OSC2/XTAL | Crystal/resonator interface | Supports 31.25 kHz–38.4 kHz or 1–16 MHz oscillators; ultra-low-power OSC mode enabled |
| TPA0/AD0–AD7 | Multiplexed ADC input / GPIO | 8 analog inputs shared with PTA0–PTA7; internal bandgap and temperature sensor channels available |
Key Features
| Feature | Design Value |
|---|---|
| Two ultra-low-power stop modes | One allows limited peripheral use (e.g., ADC sampling) while drawing sub-µA current, extending battery life in sleep-dominated applications |
| 6 µs wake-up from stop mode | Enables rapid response to external events (e.g., smoke detector alarm trigger) without sacrificing energy efficiency |
| Software-relocatable TPM channel | Allows PWM or input capture functionality on either PTA0 or PTB5, increasing layout flexibility without hardware redesign |
| On-chip analog comparator with TPM trigger | Eliminates need for external comparators; comparator output can directly initiate TPM capture for precise timing of threshold crossings |
| Keyboard interrupt module (8 pins) | Reduces firmware polling overhead in remote control or keypad-based interfaces, lowering active-mode power consumption |
Applications
| Smoke Detectors | Garage Door Openers |
|---|---|
Use Scenario: Battery-powered standalone unit monitoring ionization chamber or photoelectric sensor output. IC Role / Device Role / Timing Role: Main controller executing periodic sensor sampling, alarm logic, and low-power wake-on-event via analog comparator or KBI. Use Value: 6 µs wake-up and sub-µA stop mode current enable >5-year battery life with standard AA cells. | Use Scenario: Wireless receiver module interpreting RF commands and driving motor control logic. IC Role / Device Role / Timing Role: System-on-chip managing RF demodulation interface, safety timeout timers, and relay/actuator sequencing. Use Value: 10-bit ADC monitors battery voltage and motor current; TPM generates precise timing for safety interlocks. |
| Remote Window Shutters | Low-Power Toys & Games |
Use Scenario: Solar/battery-powered actuator node receiving encrypted RF commands and controlling stepper/servo position. IC Role / Device Role / Timing Role: Command interpreter, position feedback processor (via ADC or ACMP), and low-power scheduler. Use Value: Keyboard interrupt pins detect physical limit switches; clock gating reduces active power during idle motion phases. | Use Scenario: Handheld interactive device with push-button inputs, LED/audio feedback, and motion-triggered wake. IC Role / Device Role / Timing Role: Primary MCU handling button scan, sound generation (PWM-driven buzzer), and sleep/wake state machine. Use Value: 8 KBI pins support multi-button matrix; 1.8 V minimum operation enables direct use of single-cell alkaline batteries. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S08QB8CTG | 8 KB flash, 12-bit ADC, same 16-pin TSSOP package and pinout | Higher memory and ADC resolution suit more complex sensor fusion or firmware-over-the-air update needs | Select when application requires >4 KB code space or 12-bit measurement precision without changing PCB layout |
| MC9S08QD4CTG | Same flash/RAM, adds SPI interface and enhanced KBI with debounce; identical 16-pin TSSOP | Better suited for systems requiring serial sensor interfacing (e.g., digital ambient light or humidity sensors) | Choose when SPI peripheral is mandatory and KBI debounce improves mechanical switch reliability |
Compared with MC9S08QB4CTG, the QB8CTG offers higher flash and ADC resolution within identical footprint, while QD4CTG adds SPI and robust KBI-both retain the same ultra-low-power architecture, wake-up latency, and voltage range critical for battery longevity.
Availability
MC9S08QB4CTG is available at Aetrix Electronics and suitable for smoke detectors, garage door openers, remote window shutters, and battery-operated toys requiring stable component supply, long-lifecycle assurance, and consistent parametric performance across production batches.
Supply support for MC9S08QB4CTG 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 applications.
The MC9S08QB4CTG belongs to NXP's S08QB ultra-low-power microcontroller family, engineered specifically for cost-sensitive, battery-constrained applications demanding multi-year operation without maintenance.
FAQ
What is the maximum operating frequency of the MC9S08QB4CTG at 1.8 V?
The MC9S08QB4CTG supports a maximum CPU speed of 20 MHz across its full 1.8 V to 3.6 V operating range, including at 1.8 V. This enables high computational throughput even under minimal battery voltage, making MC9S08QB4CTG ideal for applications where brown-out conditions must not degrade real-time responsiveness.
Does the MC9S08QB4CTG support in-circuit debugging?
Yes, the MC9S08QB4CTG integrates an on-chip background debug module (BDM) compatible with standard USB-BDM cables. It supports one hardware breakpoint and three additional breakpoints via the debug module, enabling full firmware inspection and real-time execution control during development of MC9S08QB4CTG-based systems.
What ADC resolution does the MC9S08QB4CTG provide, and how does it differ from the QB8 variant?
The MC9S08QB4CTG provides a 10-bit analog-to-digital converter, whereas the MC9S08QB8CTG offers 12-bit resolution. Both share identical conversion time (2.5 µs) and low-power stop-mode operation. The 10-bit ADC in MC9S08QB4CTG meets requirements for basic voltage monitoring and simple sensor interfacing in cost-optimized designs.
Can the TPM channel on the MC9S08QB4CTG be reassigned to different pins?
Yes, the single 16-bit TPM channel on MC9S08QB4CTG can be software-configured to operate on either PTA0 (default) or PTB5. This pin relocation capability allows flexible PCB routing and functional reuse of I/O resources without hardware modification, enhancing design adaptability for MC9S08QB4CTG implementations.
Is the MC9S08QB4CTG pin-compatible with other S08QB family members in the same package?
Yes, the MC9S08QB4CTG is pin-compatible with MC9S08QB8CTG and MC9S08QD4CTG in the 16-pin TSSOP package. All share identical pin functions, electrical characteristics, and thermal profiles, enabling drop-in replacement for memory or peripheral upgrades without PCB changes-subject to firmware validation for new features.
MC9S08QB4CTG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Series:
- S08
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Verified
- Core Processor:
- S08
- Core Size:
- 8-Bit
- Speed:
- 20MHz
- Connectivity:
- LINbus, SCI
- Peripherals:
- LVD, PWM, WDT
- Number of I/O:
- 12
- Program Memory Size:
- 4KB (4K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 256 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 8x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S08QB4CTG FAQ
1.How can I place an order for MC9S08QB4CTG through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S08QB4CTG 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 MC9S08QB4CTG reliable?
The price and inventory of MC9S08QB4CTG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S08QB4CTG is usually 5 days.
3.What payment methods are accepted for MC9S08QB4CTG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S08QB4CTG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S08QB4CTG?
MC9S08QB4CTG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S08QB4CTG 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 MC9S08QB4CTG?
For technical support, including MC9S08QB4CTG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S08QB4CTG requirements.
6.How does Aetrix verify that MC9S08QB4CTG is sourced from the original manufacturer or authorized distributors?
All MC9S08QB4CTG 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 MC9S08QB4CTG meets industry standards.
7.What is the process for return or replacement of MC9S08QB4CTG?
All MC9S08QB4CTG units undergo pre-shipment inspection (PSI). If there is an issue with MC9S08QB4CTG, 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 MC9S08QB4CTG part is unused and in its original packaging.
Return procedure for MC9S08QB4CTG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MC9S08QB4CTG 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…
