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NXP Semiconductors MC9S08QB8CTGR
- Part No.:
- MC9S08QB8CTGR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MC9S08QB8CTGR.pdf
- Description:
- IC MCU 8BIT 8KB FLASH 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
MC9S08QB8CTGR from NXP (formerly Freescale) is an 8-bit HCS08 microcontroller designed for ultra-low-power battery-operated systems. It features 8 KB flash, 512 bytes RAM, 8-channel 10-bit ADC (10-bit resolution in 16-pin TSSOP), 16-bit TPM, UART (SCI), analog comparator, keyboard interrupt module, and operates from 1.8V to 3.6V at up to 20 MHz CPU speed.
For engineers reviewing the MC9S08QB8CTGR datasheet, MC9S08QB8CTGR pinout, MC9S08QB8CTGR application, or MC9S08QB8CTGR equivalent, key selection considerations include its 16-pin TSSOP package, 10-bit ADC resolution (vs. 12-bit in larger packages), 6 µs wake-up from stop mode, dual ultra-low-power stop modes with peripheral retention, and compatibility with QE8 pinout for drop-in migration in space-constrained designs.
Technical Context
The MC9S08QB8CTGR implements the HCS08 CPU core with backward object-code compatibility to 68HC08/68HC05, supporting bus speeds up to 10 MHz at 1.8V. Its internal clock system includes an FLL-controlled ICS and an ultra-low-power OSC supporting 31.25 kHz–38.4 kHz or 1–16 MHz crystals/resonators.
Peripherals are managed via clock gating to reduce dynamic power; the 16-bit TPM supports input capture, output compare, and edge-/center-aligned PWM on PTA0 (relocatable to PTB5); the SCI module provides full-duplex asynchronous communication with 13-bit break detection and hardware parity support.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | HCS08 8-bit core with BGND instruction and 68HC08/68HC05 object-code compatibility |
| Max CPU Speed | 20 MHz at 1.8–3.6 V, enabling high responsiveness in low-voltage battery systems |
| Flash Memory | 8 KB on-chip flash with read/program/erase over full voltage/temperature range |
| RAM | 512 bytes with low-retention voltage support and security lock for protected data storage |
| ADC Resolution | 10-bit (8-channel) - confirmed for 16-pin TSSOP package per datasheet specification |
| Wake-up Time | 6 µs typical from stop mode - critical for rapid sensor sampling in duty-cycled applications |
| Operating Voltage | 1.8 V to 3.6 V - allows direct operation from single-cell Li-ion or two-cell alkaline batteries |
Pinout & Package
MC9S08QB8CTGR is housed in a 16-pin thin shrink small-outline package (TSSOP) with 0.65 mm pitch, measuring 5.0 mm × 4.4 mm × 1.2 mm. Pin functions align with the QB family's standardized 16-pin mapping, matching MC9S08QE8CTG pinout for mechanical and electrical compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual supply pins enable stable core/peripheral rail decoupling in compact layouts |
| PTA0–PTA7 | General-purpose I/O port A | 8-bit GPIO bank including TPM channel default pin (PTA0) and KBI-capable inputs |
| PTB0–PTB5 | General-purpose I/O port B | 6-bit GPIO bank with software-relocatable TPM channel option (PTB5) |
| RESET | Active-low reset input | Accepts external reset or internal COP/LVD reset assertion; supports low-voltage detection interrupt |
| OSC1/EXTAL, OSC2/XTAL | Crystal/resonator interface | Supports 31.25 kHz–38.4 kHz or 1–16 MHz external timing sources for precision or ultra-low-power clocking |
Key Features
| Feature | Design Value |
|---|---|
| Two ultra-low-power stop modes | One enables limited peripheral operation (e.g., ADC sampling) while drawing sub-µA current - extends battery life in intermittent-sensing applications |
| 6 µs wake-up from stop mode | Enables rapid response to external events (e.g., door opener trigger or smoke alarm threshold crossing) without sacrificing energy efficiency |
| 10-bit 8-channel ADC with internal reference | Provides calibrated analog sensing across 1.8–3.6 V supply range - eliminates need for external reference in cost-sensitive smoke detectors or remote controls |
| Keyboard interrupt (KBI) on 8 pins | Hardware-accelerated keypad scanning with polarity select - reduces firmware overhead in garage door remotes and window shutter controllers |
| SCI with 13-bit break and HW parity | Robust UART communication for host MCU or RF transceiver interfacing - supports noise-immune command framing in wireless remote applications |
Applications
| Garage Door Opener Remote | Smoke Detector Sensor Node |
|---|---|
Use Scenario: Handheld remote transmitting open/close commands via RF link upon button press. IC Role / Device Role / Timing Role: Main controller managing KBI-driven button scan, SCI-based RF module command framing, and ultra-low-power stop/wake cycles between transmissions. Use Value: 6 µs wake-up and dual stop modes minimize average current draw, enabling >2-year battery life on two AA cells. | Use Scenario: Standalone optical smoke sensor with periodic self-test and alarm triggering. IC Role / Device Role / Timing Role: System-on-chip handling analog comparator-based smoke chamber monitoring, internal temperature sensing, and latched alarm output via GPIO. Use Value: 10-bit ADC with internal bandgap reference ensures consistent smoke threshold detection across battery voltage decay (1.8–3.6 V). |
| Battery-Powered Toy Controller | Remote Window Shutter Actuator |
Use Scenario: Motion-triggered sound/light effects in handheld toys using accelerometer input. IC Role / Device Role / Timing Role: Low-voltage supervisor and real-time counter coordinating wake-on-interrupt, PWM-driven LED control, and audio playback timing. Use Value: Operation down to 1.8 V and 20 MHz performance allow responsive gameplay even as alkaline batteries deplete. | Use Scenario: Wireless-controlled motorized shutter with position feedback and obstacle detection. IC Role / Device Role / Timing Role: Motor driver interface controller using TPM-generated PWM, analog comparator for current-sense fault detection, and SCI for status reporting. Use Value: Clock gating disables unused peripherals during standby, reducing quiescent current to sustain multi-month operation on coin-cell backup. |
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 |
|---|---|---|---|
| MC9S08QE8CTG | Same 16-pin TSSOP package and pinout; offers 12-bit ADC (not 10-bit) and additional 2 KB flash (10 KB total) | Preferred where higher-resolution analog sensing or larger firmware footprint is required | Select MC9S08QE8CTG only if 12-bit ADC accuracy or extra flash is mandatory - otherwise MC9S08QB8CTGR delivers optimal cost/power balance |
| EFM8SB10F8G-A-QSOP16 | Silicon Labs EFM8 Sleepy Bee: 8051 core, 8 KB flash, 512 B RAM, 12-bit ADC, 350 nA deep sleep current (vs. QB8's ~1 µA) | Better suited for sub-µA always-on sensing; lacks native KBI but offers more flexible interrupt routing | Choose EFM8SB10F8G-A-QSOP16 when nanoamp-level sleep current outweighs legacy toolchain compatibility and KBI hardware acceleration |
Compared with MC9S08QE8CTG, MC9S08QB8CTGR trades ADC resolution and flash size for lower unit cost and identical pin-compatible deployment; versus EFM8SB10F8G-A-QSOP16, it prioritizes mature HCS08 ecosystem support and integrated keyboard interrupt logic over absolute lowest sleep current.
Availability
MC9S08QB8CTGR is available at Aetrix Electronics and suitable for battery-powered remote controls, residential smoke detectors, and garage door opener transmitters requiring stable component supply across extended production lifecycles.
Supply support for MC9S08QB8CTGR 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 company formed from the spin-off of Freescale Semiconductor and Philips' semiconductor division, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The MC9S08QB8CTGR belongs to NXP's S08QB ultra-low-power microcontroller family, engineered specifically for cost-sensitive, long-life battery applications where sub-microamp sleep current, fast wake-up, and minimal external components are essential design requirements.
FAQ
What is the ADC resolution of the MC9S08QB8CTGR?
The MC9S08QB8CTGR features an 8-channel, 10-bit analog-to-digital converter. This resolution is specified for the 16-pin TSSOP package variant (including MC9S08QB8CTGR) and is validated across the full 1.8–3.6 V operating voltage range. The 10-bit ADC includes internal temperature sensor and bandgap reference channels, and supports automatic compare functionality - making it suitable for precision threshold detection in smoke detectors and remote sensors.
Does the MC9S08QB8CTGR support pin-compatible replacement with the MC9S08QE8CTG?
Yes, the MC9S08QB8CTGR is pin-compatible with the MC9S08QE8CTG in the 16-pin TSSOP package. Both share identical pinout, electrical characteristics, and footprint, enabling direct PCB-level substitution. However, MC9S08QE8CTG provides 12-bit ADC resolution and 10 KB flash versus MC9S08QB8CTGR's 10-bit ADC and 8 KB flash - functional compatibility depends on whether the application requires those enhanced resources.
What is the minimum operating voltage for the MC9S08QB8CTGR?
The MC9S08QB8CTGR operates down to 1.8 V while maintaining full functionality, including 20 MHz CPU speed and peripheral operation. This low-voltage capability enables reliable use with aging alkaline or lithium primary cells, and supports extended runtime in battery-powered applications such as remote controls and smoke alarms without requiring voltage regulation circuitry.
How fast can the MC9S08QB8CTGR wake from stop mode?
The MC9S08QB8CTGR achieves a typical wake-up time of 6 µs from ultra-low-power stop mode. This rapid transition allows immediate response to external interrupts (e.g., KBI pin change or SCI start bit), making it ideal for event-driven systems like wireless remotes and intrusion sensors where latency and energy efficiency must both be optimized.
Which development tools support the MC9S08QB8CTGR?
The MC9S08QB8CTGR is supported by Freescale/NXP's CodeWarrior Development Studio for Microcontrollers (v6.2 Special Edition), the DEMO9S08QB8 demonstration kit ($69 MSRP), and the DC9S08QB8 daughter card ($10 MSRP). These tools provide in-circuit debugging via USB-BDM, ultra-low-power lab examples, and reuse of the QE-family base board - enabling rapid validation of MC9S08QB8CTGR's stop-mode behavior and peripheral integration.
MC9S08QB8CTGR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Series:
- S08
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not 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:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 512 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:
MC9S08QB8CTGR FAQ
1.How can I place an order for MC9S08QB8CTGR through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S08QB8CTGR 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 MC9S08QB8CTGR reliable?
The price and inventory of MC9S08QB8CTGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S08QB8CTGR is usually 5 days.
3.What payment methods are accepted for MC9S08QB8CTGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S08QB8CTGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S08QB8CTGR?
MC9S08QB8CTGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S08QB8CTGR 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 MC9S08QB8CTGR?
For technical support, including MC9S08QB8CTGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S08QB8CTGR requirements.
6.How does Aetrix verify that MC9S08QB8CTGR is sourced from the original manufacturer or authorized distributors?
All MC9S08QB8CTGR 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 MC9S08QB8CTGR meets industry standards.
7.What is the process for return or replacement of MC9S08QB8CTGR?
All MC9S08QB8CTGR units undergo pre-shipment inspection (PSI). If there is an issue with MC9S08QB8CTGR, 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 MC9S08QB8CTGR part is unused and in its original packaging.
Return procedure for MC9S08QB8CTGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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