MC9S08QG4CDTE - 20MHz 8-Bit 4KB MCU | NXP
MPN: MC9S08QG4CDTE ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.7576 | $2.76 |
| 10 | $2.7576 | $27.58 |
| 100 | $2.7576 | $275.76 |
| 500 | $2.7576 | $1,378.80 |
| 1,000 | $2.7576 | $2,757.60 |
MC9S08QG4CDTE Overview
A microcontroller is a programmable embedded-system component that integrates a CPU, memory, I/O, and peripherals on one semiconductor die. The S08 belongs to the 8-bit MCU hierarchy and uses a CISC architecture, meaning instructions execute through a defined internal sequence. The S08QG family adds compact packaging and low-power characteristics for embedded controls, while the enhanced HCS08 core and background debugging support target cost-sensitive applications that still require development features.
The verified data identifies 20 MHz operation, 4 KB of flash, 8-bit processing, and 6 I/O ports. The family documentation also identifies serial interfaces and peripherals for communication and control. At 1.8 V to 3.6 V, the device can operate from common low-voltage rails used in embedded products. The 16-TSSOP package supports compact PCB layouts, but the exact pin functions, RAM size, EEPROM size, and complete timing limits are not stated in the supplied search data and should be confirmed in the manufacturer datasheet.
Typical applications include low-cost battery-powered controllers, compact sensor interfaces, simple keypad and LED control, small appliance controls, and embedded products requiring an 8-bit MCU with flash memory. Its 20 MHz CPU provides a defined performance point, while the low-power family positioning makes it appropriate where simplicity and compactness matter more than high processing bandwidth.
When designing around the MC9S08QG4CDTE, confirm the exact package pinout, memory map, reset behavior, clock configuration, peripheral allocation, and programming requirements against the manufacturer datasheet and reference manual. Use the supported S08 toolchain and programming/debug adapter for production programming. Distributor availability and lifecycle status should be checked before committing to a new design because the verified NXP page indicates an end-of-life overview.
This page consolidates verified distributor specifications, lifecycle information, sourcing links, and design-oriented context for engineers evaluating the MC9S08QG4CDTE. Missing detailed electrical, timing, and pin-level values are explicitly marked for data completion rather than inferred from the target MPN.
Drop-in alternatives for MC9S08QG4CDTE — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MC9S08QG4CDTE (same form factor and footprint) — differing in Package, Operating Temperature, Program Memory Size, RoHS Status, ADC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MC9S08QG4CPAE
✅ Drop-In✓ In Stock
$1.71 / Unit
View Datasheet →MC9S08QG4CFFER
✅ Drop-In📋 Reference alternative (not in catalog)
MC9S08QG4CFFE
✅ Drop-In✓ In Stock
$1.1 / Unit
View Datasheet →MC9S08QE8CTG
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$6.3214 / Unit
View Datasheet →MC9S08SH4CTJ
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.85 / Unit
View Datasheet →MC9S08QG4CDTE Maximum Ratings & Electrical Characteristics
| Product Type | 8-bit S08 CISC microcontroller |
| CPU Clock | 20 MHz |
| Program Memory | 4 KB flash |
| Program Memory Organization | 4K x 8 bits |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Architecture | HCS08 enhanced 8-bit core |
| Instruction Set | HC08 instruction set with BGND instruction |
| I/O Port Count | 6 |
| Package | 16-TSSOP |
| Mounting Type | Surface mount |
| Debug Support | Background debugging system with single breakpoint capability |
| Product Family | S08QG |
| Core Category | 8-bit microcontroller |
| Application Category | Low-power embedded control |
MC9S08QG4CDTE 16-tssop Pin Configuration Guide
Pin configuration for MC9S08QG4CDTE (16-tssop package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for MC9S08QG4CDTE.
Refer to the datasheet for full pin configuration.
Typical Applications
MC9S08QG4CDTE is suitable for 7 applications: Battery-Powered Embedded Controller, Simple Sensor Interface, Compact Appliance Control, LED and Indicator Control, Small Keypad and Menu Interface, Low-Cost Communication Node, Embedded Control and Data Logging.
Battery-Powered Embedded Controller
The MC9S08QG4CDTE fits compact battery-powered products because the verified data identifies a 1.8 V to 3.6 V supply range and places the device in the low-power S08QG family. Its 20 MHz 8-bit CPU and 4 KB flash are suitable for modest control loops, state machines, sensor polling, and local actuator decisions. A typical design powers the MCU from a regulated low-voltage rail and uses available I/O for indicators, buttons, or a simple actuator. The trade-off is limited flash and no supplied RAM, EEPROM, or active-current figures; battery-life and firmware sizing must therefore be checked against the complete manufacturer datasheet.
Recommended
Simple Sensor Interface
The MC9S08QG4CDTE can serve as the control MCU in a small sensor interface when the required peripherals and I/O fit the S08QG feature set. Its 20 MHz processing point is more than adequate for digital sensor polling, threshold handling, filtering, and status reporting in many low-power systems. The 16-TSSOP package helps reduce board area, while the 4 KB flash provides room for a compact firmware image. Verify the exact I/O count, serial-interface availability, RAM, and peripheral assignments in the datasheet, since only six I/O ports are confirmed by the supplied data and detailed RAM information is unavailable.
Recommended
Compact Appliance Control
The MC9S08QG4CDTE is suitable for compact appliance controls that require a deterministic 8-bit MCU, low-voltage operation, and flash-resident firmware. The 20 MHz HCS08-based device can coordinate button inputs, LEDs, relays, or other simple loads while keeping the design within a small 16-TSSOP footprint. The 1.8 V to 3.6 V range allows integration with common embedded power rails. Before selecting it, check the target appliance’s voltage transients, isolation needs, relay-drive requirements, and whether the MCU’s specified I/O can safely handle the required loads.
Recommended
LED and Indicator Control
The MC9S08QG4CDTE can implement LED indication, status sequencing, and basic user-interface logic in a compact embedded product. The six confirmed I/O ports provide a defined digital-control resource for LEDs, switches, and simple output signals, while the 4 KB flash is useful for compact display-state and animation software. The 20 MHz CPU gives ample headroom for non-timing-critical multiplexing or scanning. Confirm pin drive strength, current limits, port multiplexing, and timing behavior in the manufacturer datasheet before driving LEDs directly or using the MCU in a high-current lighting design.
Recommended
Small Keypad and Menu Interface
The MC9S08QG4CDTE can support a small keypad, mode selector, or menu controller when the product does not require a high-resolution display interface. Its 8-bit architecture and 20 MHz clock are appropriate for debouncing, state-machine navigation, and simple output updates. The compact 16-TSSOP package supports space-constrained handheld or panel electronics, and flash allows firmware to be stored directly on the MCU. The main design constraint is the verified 4 KB flash capacity and unspecified RAM/EEPROM resources; keyboard buffering, display storage, and future expansion should be budgeted before final firmware selection.
Recommended
Low-Cost Communication Node
The MC9S08QG4CDTE may be used in a low-cost communication node when the required serial function, protocol stack, and memory footprint are compatible with the S08QG family. The 20 MHz 8-bit CPU can handle short polling loops, framing, and basic device-control tasks, while background debugging helps develop and validate embedded firmware. Its 1.8 V to 3.6 V operation is compatible with low-voltage system rails. Do not assume a particular UART, SPI, or other peripheral without checking the complete datasheet, because the supplied data confirms the family includes serial interfaces but does not enumerate the target device’s complete peripheral map.
Recommended
Embedded Control and Data Logging
The MC9S08QG4CDTE can serve as a compact embedded control hub for low-rate data acquisition, event counting, and simple local logging where 4 KB flash is sufficient for the application firmware. The 20 MHz S08 core provides timing flexibility for sampling and state management, and the six confirmed I/O ports can support sensors, indicators, or a host interface. Because RAM, EEPROM, and detailed timing values are not supplied, the designer should first estimate buffers, retention needs, and worst-case execution paths. Background debugging support is useful during bring-up, especially when the application depends on intermittent events and low-power behavior.
Recommended
Recommended Products Summary
Engineering reference data for MC9S08QG4CDTE — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MC9S08QG4CPAE | MC9S08QG4CFFER | MC9S08QG4CFFE | MC9S08QE8CTG | MC9S08SH4CTJ |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 16-TSSOP | 16-TSSOP | QFN-16 | 16-TSSOP | 16-TSSOP | 16-TSSOP |
Key Differentiators
- Verified compact 8-bit MCU positioning (vs MC9S08QG8CDTE)
- Confirmed 16-TSSOP package and 1.8 V to 3.6 V range (vs MC9S08QG4CFFER)
- Background debugging support (vs Generic 8-bit MCU alternatives)
- Low-power family positioning (vs Higher-performance MCU alternatives)
- Compact embedded-control resource set (vs MC9S08QE8CTG)
Design Notes
Design the supply around the verified 1.8 V to 3.6 V operating range, but confirm the complete electrical limits from the NXP datasheet before connecting external circuitry. Include local bulk and bypass capacitors according to the manufacturer guidance, and account for startup, reset, and supply-transient requirements. Estimated power dissipation cannot be calculated from the supplied data because active current, sleep current, and voltage-current limits are not provided.
Reserve the correct 16-TSSOP land pattern and verify the pin-one orientation against the current NXP package drawing before routing. Keep programming and debug-access signals routed for reliable manufacturing test, maintain the required clearance around exposed or sensitive pins shown in the package documentation, and place decoupling close to the supply pins. The complete pin list was not present in the supplied data, so do not finalize the PCB footprint from a generic TSSOP drawing alone.
Do not assume that related S08 MPNs are drop-in replacements. The supplied cross-reference results mention MC9S08QG4CPAE, MC9S08QG4CFFER, and MC9S08QG4CFFE, but they do not provide a complete verified pin, memory, peripheral, and lifecycle comparison. Check the exact package, pin functions, supply limits, clock settings, flash size, RAM, EEPROM, and software constraints before substituting a part.
Place the MCU close to the low-frequency support circuitry while keeping switching nodes, high-current relays, and noisy analog sources separated from sensitive control traces. Use a stable ground reference and route programming signals away from sources of electromagnetic interference. If the design uses serial communication or external sensors, verify signal levels and pin multiplexing against the datasheet rather than inferring them from the six-port count.
The MC9S08QG4CDTE is identified as a 4 KB-flash device, so firmware size should be checked before adding serial protocols, logging, or elaborate user-interface logic. The supplied data does not state RAM or EEPROM capacity. Use CodeWarrior for HCS08 or another currently supported compatible toolchain, and validate the final image against the exact device and package selected for production.
Compliance Information
The supplied search results do not explicitly provide RoHS, REACH, lead-free, halogen-free, or conflict-minerals declarations for the target. AEC-Q100 is not applicable based on the supplied data. Verify current compliance documents with NXP and the selected distributor.