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MC908QB4CDWE - 8-bit 8MHz MCU 4KB Flash | NXP (Tape & Reel)
MC908QB4CDWE

MC908QB4CDWE - 8-bit 8MHz MCU 4KB Flash | NXP (Tape & Reel)

The NXP MC908QB4CDWE is an 8-bit M68HC08 (HC08) microcontroller with 4KB (4K x 8) of Flash program memory, 128 bytes of RAM, and an 8 MHz internal bus capability, housed in a 16-pin SOIC (0.295 in, 7.50 mm width) package supplied on tape and reel. An 8-bit MCU is a single-chip computer whose CPU processes data 8 bits at a time. Within the system hierarchy, the MC908QB4 belongs to the NXP (formerly Freescale/Motorola) HC08 family, a CISC-architecture descendant of the classic 68HC05, positioned under the microcontroller category for cost-sensitive embedded control. The Nitron designation refers to NXP's entry-level Flash MCUs targeting low-pin-count, high-volume applications. Key features of the MC908QB4CDWE include the 4KB in-system-programmable Flash program memory that eliminates external EPROM/OTP programming, 13 general-purpose I/O lines for direct sensor and actuator interfacing, and dual 3.3V/5V supply operation that eases migration between legacy 5V systems and modern 3.3V rails. The 16-pin SOIC wide-body footprint keeps PCB area small while remaining hand-solderable for prototyping. Technically, the device executes the HC08 instruction set, an enhanced and fully upward-compatible expansion of the 68HC05 core with an indexed addressing model and stack pointer relative addressing. Peripherals typical of the QB4 family include an 8-bit timer module, analog capabilities, and oscillator options suited to low-cost resonator or RC clocking, allowing deterministic low-jitter timing for small control loops. Typical applications include small appliance control, battery chargers, lighting and fan control, and simple industrial sensing nodes where a compact 8-bit MCU with Flash memory reduces bill-of-materials cost. Design consideration: verify supply-voltage choice (3.3V versus 5V) early, since I/O thresholds and timing margins differ; decouple VDD with 0.1uF ceramic capacitors placed close to the package pins. This page synthesizes distributor pricing, family drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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MC908QB4CDWER - 8-bit 8MHz MCU 4KB Flash | NXP
MC908QB4CDWER

MC908QB4CDWER - 8-bit 8MHz MCU 4KB Flash | NXP

The NXP MC908QB4CDWER is an 8-bit M68HC08 (HC08) microcontroller with 4KB (4K x 8) of Flash program memory, 128 bytes of RAM, and an 8 MHz internal bus capability, housed in a 16-pin SOIC (0.295 in, 7.50 mm width) package supplied on tape and reel. An 8-bit MCU is a single-chip computer whose CPU processes data 8 bits at a time. Within the system hierarchy, the MC908QB4 belongs to the NXP (formerly Freescale/Motorola) HC08 family, a CISC-architecture descendant of the classic 68HC05, positioned under the microcontroller category for cost-sensitive embedded control. The Nitron designation refers to NXP's entry-level Flash MCUs targeting low-pin-count, high-volume applications. Key features of the MC908QB4CDWER include the 4KB in-system-programmable Flash program memory that eliminates external EPROM/OTP programming, 13 general-purpose I/O lines for direct sensor and actuator interfacing, and dual 3.3V/5V supply operation that eases migration between legacy 5V systems and modern 3.3V rails. The 16-pin SOIC wide-body footprint keeps PCB area small while remaining hand-solderable for prototyping. Technically, the device executes the HC08 instruction set, an enhanced and fully upward-compatible expansion of the 68HC05 core with an indexed addressing model and stack pointer relative addressing. Peripherals typical of the QB4 family include an 8-bit timer module, analog capabilities, and oscillator options suited to low-cost resonator or RC clocking, allowing deterministic low-jitter timing for small control loops. Typical applications include small appliance control, battery chargers, lighting and fan control, and simple industrial sensing nodes where a compact 8-bit MCU with Flash memory reduces bill-of-materials cost. Design consideration: verify supply-voltage choice (3.3V versus 5V) early, since I/O thresholds and timing margins differ; decouple VDD with 0.1uF ceramic capacitors placed close to the package pins. This page synthesizes distributor pricing, family drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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MC908QB4CPE - 8-Bit HC08 MCU 4KB Flash 16-PDIP | NXP
MC908QB4CPE

MC908QB4CPE - 8-Bit HC08 MCU 4KB Flash 16-PDIP | NXP

The NXP MC908QB4CPE is an 8-bit member of the Freescale M68HC08 family of microcontrollers featuring a 4 KB FLASH program memory array and a 16-pin PDIP (Plastic Dual-Inline Package, 0.300 inch / 7.62 mm) through-hole footprint. It integrates an HC08 CPU core capable of up to 8 MHz internal bus operation together with on-chip RAM, an analog-to-digital converter (ADC) and a 16-bit timer for general-purpose embedded control. According to manufacturer documentation, the MC908QB4 series was designed as a low-cost, high-performance 8-bit MCU intended for cost-sensitive consumer, appliance, automotive body and industrial control applications. What is an HC08 8-bit microcontroller? The HC08 is Freescale/NXP's 8-bit CISC microcontroller architecture that evolved from the earlier M68HC05 family, retaining binary code compatibility with HC05 while offering an enhanced instruction set, improved stack handling, and FLASH program memory. Within the broader taxonomy, the HC08 sits as a member of the 8-bit microcontroller category, which itself is part of the microcontroller unit (MCU) -> embedded processor -> semiconductor hierarchy. Compared with newer 16- and 32-bit ARM Cortex-M parts, HC08 devices trade raw throughput for ultra-low cost, deterministic interrupt response, and a simple tool chain that suits high-volume, latency-tolerant products. Key features of the MC908QB4CPE include 4 KB (4K x 8) of embedded FLASH, 128 bytes of RAM, a multi-channel 8-bit ADC, a 16-bit timer with pulse-width modulation capability, and a user-selectable internal oscillator. The device supports in-circuit reprogramming, hardware breakpoints and a built-in monitor ROM that simplifies firmware development with Freescale/NXP HC08 tool chains. Compared with mask-ROM HC908 variants, the FLASH-based C-suffix part allows field upgrades and late-stage prototype iteration without package re-spin. Architecture and process details: the MC908QB4CPE is fabricated with CMOS FLASH technology and pairs the HC08 CPU core with standard on-chip peripherals including serial communications and general-purpose I/O. Performance is driven by the 8 MHz internal bus clock, which delivers roughly 1 MIPS per MHz of operation. Designers should consult the MC908QB4 datasheet for the exact peripheral map and memory register layout. Typical application use-cases include small-appliance controllers, white-goods user interfaces, remote-control transmitters, automotive body electronics (mirror, lighting, seat modules), industrial sensor signal conditioning blocks, and battery-powered low-end consumer products. The wide operating voltage range (typical 2.7 V-5.5 V) and small 16-pin PDIP form factor also suit hobbyist and educational platforms. Key design consideration: verify whether HC08 assembly or C tool-chain support meets the project timeline. Many modern compilers have deprecated HC08 support, and engineers may need to source legacy Freescale CodeWarrior HC08 or compatible third-party tools. Also confirm that long-term supply is acceptable - the device is approaching end-of-life per distributor listings, so consider an NXP/Freescale 9S08 or small-pin PIC/AVR drop-in alternative as a hedge. This page synthesizes current distributor pricing from DigiKey/Mouser/Octopart, cross-reference alternatives and practical design notes not found in the bare manufacturer datasheet, optimized for engineers selecting or replacing the MC908QB4CPE in legacy 8-bit designs.

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MC908QB4MDTE - HC08 8-Bit MCU 8MHz 4KB Flash 16-TSSOP | NXP
MC908QB4MDTE

MC908QB4MDTE - HC08 8-Bit MCU 8MHz 4KB Flash 16-TSSOP | NXP

The NXP (formerly Freescale) MC908QB4MDTE is an 8-bit HC08-family microcontroller with a 8 MHz internal bus clock, 4 KB of on-chip FLASH program memory, and a 16-pin TSSOP package. The device integrates a M68HC08 CPU core, on-chip FLASH for in-application reprogramming, RAM, an internal oscillator, and a peripheral set suitable for cost-sensitive embedded control, all in a compact surface-mount outline measuring roughly 4.40 mm body width. Background knowledge: An 8-bit microcontroller is a single-chip computer built around an 8-bit data path and a primitive instruction set optimized for deterministic control rather than computational throughput. Within the broader hierarchy, MCUs sit inside the integrated-circuits family, and as a sub-family of microcontrollers HC08 parts target cost- and code-density-sensitive applications. FLASH-based variants allow ISP (in-system programming) via background debug mode, eliminating the need for external EPROMs or masked-ROM contracts in low-to-mid-volume production. The 16-TSSOP footprint keeps the part small enough for hand-held consumer appliances while retaining enough I/O for typical sensor and switch interfaces. Key features of the MC908QB4MDTE include the HC08 CPU with BDM (background-debug mode) interface, integrated oscillator supporting multiple bus-clock options, an analog-to-digital converter for mixed-signal designs, timers, and general-purpose I/O mapped onto the 16-TSSOP pins. Industrial-grade operating temperature range and a wide VDD window accommodate both battery-powered and mains-derived supplies, while the FLASH memory supports at least several thousand program/erase cycles. The architecture is a Harvard-style single-chip design with FLASH on one bus and SRAM on another, which keeps instruction fetches from contending with data accesses. Because the part was originally designed for high-volume consumer applications, Freescale/NXP optimized die size, peripheral count, and dynamic current draw together to give a balanced cost-per-feature ratio rather than headline performance. Typical applications for the MC908QB4MDTE include small appliance controllers, sensor-conditioning front ends, battery chargers, remote-control transmitters, AC-line white-goods control boards, and consumer-grade IoT edge nodes where 8-bit determinism at low current is more useful than raw MHz. Designers also use it in industrial user-interface panels and as a glue MCU on legacy 24V control boards. Designers should note that HC08 parts require a compatible programmer or BDM pod and a CodeWarrior or P&E Micro toolchain to bring up code. Plan decoupling, OSC stability, and RESET pin biasing into the PCB layout before prototype bring-up; also budget enough FLASH for boot-loader + application partitioning if field updates are required. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that complement the manufacturer datasheet with XAIPART-curated engineering guidance.

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MC908QB4MDWE - 8-Bit 8MHz 4KB Flash MCU | NXP | SOIC-16
MC908QB4MDWE

MC908QB4MDWE - 8-Bit 8MHz 4KB Flash MCU | NXP | SOIC-16

The NXP Semiconductors MC908QB4MDWE is an 8-bit HC08 CISC microcontroller with an 8 MHz maximum clock, 4 KB of flash program memory, and a 16-pin SOIC package. It belongs to the low-cost M68HC08 family and uses the enhanced CPU08 core with Von Neumann architecture. The verified distributor listing identifies the device as an HC08 microcontroller with 4 KB flash memory and a 16-SOIC package. A microcontroller is a programmable embedded-control IC that integrates a CPU, memory, and peripheral interfaces on one semiconductor device. In the product hierarchy, this MCU is an embedded microcontroller within the M68HC08 family and uses the CPU08 CISC architecture. This architecture is suited to compact control systems that require deterministic peripheral operation, low pin count, and straightforward firmware-driven state machines. The verified product information identifies flash program memory, an 8 MHz system clock, and an 8-bit CPU as the principal technical characteristics. The part is also listed in a 16-SOIC package, with industrial operating-temperature information reported by a distributor result. Because the supplied data does not include complete electrical tables, pin names, memory map details, or peripheral specifications, those values are not inferred here. Typical embedded uses for this device include low-cost industrial controllers, small motor and relay-control systems, instrumentation, and compact consumer equipment. A designer should confirm the exact peripheral set, I/O assignments, clock requirements, and electrical limits against the manufacturer documentation before laying out a PCB. The main design consideration is package and pinout validation: the MC908QB4MDWE is identified as a 16-SOIC device, so the footprint, programming header, and firmware configuration must match that package exactly. This page combines verified product, distributor, and cross-reference information with explicit data gaps rather than guessing unreported specifications.

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MC908QB4MDWER - 8-Bit 8MHz MCU, 4KB Flash, 16-SOIC | NXP
MC908QB4MDWER

MC908QB4MDWER - 8-Bit 8MHz MCU, 4KB Flash, 16-SOIC | NXP

The NXP Semiconductors MC908QB4MDWER is an 8-bit HC08 microcontroller operating at 8MHz, with 4KB (4K x 8) flash memory, in a 16-SOIC package. It is identified by distributor records as an HC08 microcontroller IC and is suitable for embedded control, industrial automation, appliance control, and legacy peripheral-controller designs where a compact 8-bit architecture and established software ecosystem are useful. The verified distributor listing identifies the device as a 16-SOIC microcontroller with 8-bit processing and 8MHz operation. An 8-bit microcontroller is a compact embedded-control semiconductor that integrates a processor core, program memory, data memory, and peripheral interfaces on one integrated circuit. In the broader electronics hierarchy, an MCU belongs to the embedded processor family and semiconductor category. The HC08 family is associated with simple control tasks such as digital I/O, timing, communications, motor or relay control, and sensor acquisition. It is generally selected when a system needs deterministic embedded behavior without the cost and complexity of a higher-bit processor. The verified MC908QB4MDWER specification identifies 4KB of flash program storage and an 8MHz maximum operating frequency. Those values position the device for compact firmware rather than resource-intensive applications. The 16-SOIC package provides a standard surface-mount footprint with leads on both sides, making it suitable for conventional PCB assembly. Distributor listings classify the part as a 16-SOIC (0.295-inch, 7.50mm width) device. The principal design consideration is firmware and peripheral compatibility. Before replacing an existing HC08 design, engineers should verify the exact memory map, pin functions, interrupt behavior, and required development tools against the manufacturer datasheet. The supplied data does not specify supply voltage, RAM, I/O count, timers, communication peripherals, operating-temperature limits, or electrical timing values; those parameters require confirmation before production release. The same caution applies to any substitute: package fit alone does not establish functional equivalence. Typical uses for this controller include small motor or pump controllers, simple industrial equipment, appliance-control boards, sensor interfaces, and legacy embedded systems. For applications needing higher processing capacity, larger memory, or more communication peripherals, a more capable MCU may be a better architectural choice. For a new design using the same HC08 ecosystem, the MC908QB4MDWER can be considered only after its complete datasheet requirements and toolchain are confirmed. This page consolidates verified distributor specifications, sourcing links, application context, and engineering cautions. It does not invent electrical ratings, pin functions, lifecycle claims, or alternative-device equivalence where those facts were not provided.

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MC908QB8CDTE - 8KB Flash 8-bit HC08 MCU 16-TSSOP | NXP
MC908QB8CDTE

MC908QB8CDTE - 8KB Flash 8-bit HC08 MCU 16-TSSOP | NXP

The NXP MC908QB8CDTE is an 8-bit M68HC08 (HC08QB family) microcontroller featuring 8KB of on-chip Flash program memory and a 16-pin TSSOP package. Operating at a maximum bus frequency of 8 MHz, the device integrates a low-power HC08 core with on-chip peripherals intended for cost-sensitive embedded control. The 'CDTE' suffix indicates the 16-TSSOP industrial-temperature shipping option with Tape & Reel packaging. Background: A microcontroller (MCU) is a single-chip computer that combines a CPU core, program memory (Flash/ROM), working memory (RAM), and peripheral interfaces (timers, ADC, GPIO, communications) into one package. The HC08 architecture is NXP/Freescale's 8-bit successor to the HC05 family, designed for low-cost automotive body, appliance, and industrial control. Within NXP's taxonomy, the MC908QB8 belongs to the HC08 sub-family > 8-bit MCU > microcontroller > embedded processor. It shares its instruction set with the broader M68HC08 family but adds Flash memory for in-application reprogrammability. Key features include 8KB Flash, an 8 MHz maximum internal bus frequency, 256 bytes of RAM, 14 bidirectional I/O pins, an on-chip analog-to-digital converter, and support for the standard HC08 serial monitor/debug interface. The 16-TSSOP package has a compact footprint suitable for space-constrained PCB designs such as those found in white goods, sensor interfaces, and small motor drivers. Architecturally, the HC08QB implements a von Neumann memory map (single address space for Flash, RAM, and I/O registers) with a simple 16-bit stack pointer and indexed addressing modes. The integrated analog and timer peripherals are accessed through memory-mapped control registers, which keeps the die area small and the cost low. Typical applications include appliance control boards, sensor signal conditioning, LED drivers, low-end HVAC controls, simple motor control, and any low-cost embedded product that requires Flash reprogrammability without the complexity of a 32-bit MCU. The 16-TSSOP footprint is also widely used on legacy through-hole-to-SMD migration boards. Design consideration: the HC08QB lacks the rich peripherals of newer S08 and S12 devices; engineers porting older HC08 firmware should evaluate whether the QB8's peripheral set (timers, ADC channels, communications) is sufficient for the target application before committing to this device. Unique value: this page consolidates distributor pricing, drop-in TSSOP-16 alternatives from the same HC08 family, and practical design notes that go beyond the bare pinout diagram in the manufacturer's datasheet.

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MC908QB8CDWE - 8-Bit 8MHz MCU with 8KB Flash | NXP
MC908QB8CDWE

MC908QB8CDWE - 8-Bit 8MHz MCU with 8KB Flash | NXP

NXP Semiconductors MC908QB8CDWE is an 8-bit HC08 microcontroller operating at up to 8MHz, with 8KB flash memory, 192 bytes RAM, and 16 I/O lines, supplied in a 16-pin SOIC package. It belongs to the M68HC08 family of CISC microcontrollers with Von Neumann architecture. A microcontroller is a compact embedded-control device integrating a processor core, program memory, data memory, I/O, timers, and communication peripherals on one semiconductor die. The MC908QB8CDWE provides a low-cost, low-complexity platform for cost-sensitive automotive and industrial products where an 8-bit control engine is sufficient. Its 8KB flash stores firmware, while 192 bytes RAM supports working variables and stack operations. The verified product information identifies an enhanced M68HC08 CPU core, 8-bit data width, 8MHz maximum clock frequency, and 8KB flash organized as 8K x 8. The 16 I/O lines provide interfaces for sensors, switches, indicators, actuators, and control logic. The device operates from 3.3V/5V according to the distributor datasheet listing, supporting both legacy 5V and lower-voltage industrial or embedded designs. The HC08QB family is positioned for compact embedded controllers, particularly applications requiring economical flash programmability and broad I/O availability. Because this MCU is an 8-bit CISC device rather than a high-performance digital signal processor, its strength is deterministic control and simple peripheral integration, not intensive computation or high-bandwidth data processing. Firmware architecture, interrupt handling, and memory-efficient code design are therefore important. Typical uses include automotive accessory controllers, industrial sequence controllers, motor or relay logic, sensor interfaces, and compact embedded control modules. The 16-pin SOIC package is also straightforward for through-hole assembly and prototype construction. Designers should verify pin multiplexing, timing, electrical limits, and peripheral availability against the manufacturer datasheet before committing a new design, because the supplied search results do not include every register or pin-level parameter. This product page consolidates verified manufacturer and distributor information, lifecycle status, package data, and cross-reference findings. The manufacturer page identifies the device as end of life, so new production should be confirmed before use. Existing designs should verify stock, sourcing, and approved lifecycle-transition options rather than assuming a drop-in replacement is electrically identical.

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MC908QB8MDTE - 8KB Flash 8-Bit HC08 MCU, 16-TSSOP | NXP
MC908QB8MDTE

MC908QB8MDTE - 8KB Flash 8-Bit HC08 MCU, 16-TSSOP | NXP

The NXP (formerly Freescale) MC908QB8MDTE is an 8-bit HC08-family Flash microcontroller with 8KB program memory, 256 bytes of RAM, 13 general-purpose I/O lines, an internal oscillator, and SCI/SPI connectivity, housed in a 16-pin TSSOP package rated for the automotive temperature grade. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash/ROM), data memory (RAM), I/O peripherals, and a clock source onto one die. The HC08 family sits in the hierarchy 8-bit MCU -> microcontroller -> embedded processor -> semiconductor, and has historically been used in cost-sensitive automotive, appliance, and industrial control applications where deterministic execution and small footprint matter more than raw throughput. Key features include 8KB of on-chip Flash (8K x 8), 256 bytes of RAM, an 8MHz internal bus, 13 GPIO pins, an integrated SCI (UART) and SPI peripheral, an internal clock source eliminating the need for an external crystal, and automotive-grade temperature rating (M-grade) suitable for under-hood and dashboard environments. The 16-TSSOP package has a 4.40 mm body width and is pin-compatible with other members of the MC908QB family. The MC908QB8MDTE uses the M68HC08 CPU core, a von Neumann architecture with a 16-bit stack pointer, 16-bit index register (H:X), and an enhanced instruction set that adds several 16-bit operations on top of the original HC05 ISA. The 8MHz internal oscillator feeds the bus clock generator and can be trimmed by user code to compensate for temperature drift. Typical applications include automotive body controllers, HVAC actuators, instrument cluster sub-modules, simple sensor interfaces, white-goods control boards, and low-cost remote keyless entry transmitters. The combination of internal oscillator, small Flash footprint, and SCI/SPI connectivity makes it well-suited as a low-cost slave controller or peripheral expander. When designing with this MCU, note that the 16-TSSOP variant only exposes 13 I/O - some package pins are shared with supply, ground, or the on-chip debug interface, so plan your pin allocation before PCB layout. The 256-byte RAM limits stack depth to roughly 4-6 call levels, so large local buffers should be placed in Flash-emulated EEPROM or external memory. This page synthesizes distributor stock levels, drop-in alternative MPNs, and practical design notes not found in the manufacturer datasheet alone, helping engineers evaluate the MC908QB8MDTE against modern replacements for new designs versus its intended role in long-lifecycle automotive systems.

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MC908QB8MDWE - 8-bit HC08 MCU 8KB Flash 16-SOIC | NXP
MC908QB8MDWE

MC908QB8MDWE - 8-bit HC08 MCU 8KB Flash 16-SOIC | NXP

The NXP MC908QB8MDWE is an 8-bit HC08 CISC microcontroller with 8KB of Flash program memory and an 8MHz CPU core, housed in a 16-pin SOIC (Wide, 0.295 inch / 7.50mm) package. Designed for cost-sensitive embedded applications, it combines a mature HC08 instruction set with integrated peripherals including an analog-to-digital converter, timers, and serial communication interfaces. What is an 8-bit microcontroller? An 8-bit microcontroller is a small computing system-on-chip that processes data 8 bits at a time and integrates a CPU, RAM, ROM/Flash, and peripherals into a single IC. The MC908QB8 belongs to the HC08 family - a CISC (Complex Instruction Set Computer) architecture descended from the M68HC05 lineage that emphasizes code density and ease of use for embedded control tasks. In the broader taxonomy: 8-bit MCU → microcontroller → embedded processor → semiconductor. Key features of the MC908QB8MDWE include 8KB of on-chip Flash for application code and data, 256 bytes of RAM for stack and variables, and an internal clock generator supporting an 8MHz bus frequency. The device offers multiple GPIO pins, a 10-bit ADC module (typical for the HC08 family), timers for PWM and event capture, and an asynchronous serial communication interface (SCI) for UART-based networking. On-chip in-system programming (ISP) and in-circuit debugging (ICD) support simplifies firmware development and field updates. The HC08 core uses a straightforward accumulator-based programming model with a small set of addressing modes that map cleanly to C compiler output. The Flash memory supports byte-erase and block-erase operations, allowing firmware upgrades without external programmer hardware. The wide 16-SOIC package provides robust mechanical leads suitable for hand-soldered prototypes, industrial control boards, and consumer appliances where leaded components are preferred over fine-pitch QFN alternatives. Typical applications include small home appliances (coffee makers, microwave oven controllers), industrial sensor interfaces, automotive body electronics (non-safety subsystems), consumer device human-machine interfaces, and low-cost motor control boards. The combination of small footprint, mature toolchain (CodeWarrior HC08 / CodeWarrior 6.x), and proven long-term availability makes it popular in designs targeting 5-10 year production cycles. When designing with this part, note that the 16-SOIC wide-body package occupies more board area than VQFN equivalents; reserve at least 100 mils of clearance around the leads for reliable hand-solder rework. Ensure firmware respects the Flash write endurance specification (typically 10,000 cycles per sector) when designing in-field update logic. Decoupling capacitors of 100nF plus a bulk 4.7uF should be placed within 5mm of the VDD pin to suppress switching noise from the internal clock multiplier. This page synthesizes distributor pricing, drop-in HC08 family alternatives, and practical design notes not found in the standalone NXP datasheet.

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MC908QB8VDWE - 8KB Flash 8MHz HC08 MCU 16-SOIC | NXP
MC908QB8VDWE

MC908QB8VDWE - 8KB Flash 8MHz HC08 MCU 16-SOIC | NXP

The NXP MC908QB8VDWE is an 8-bit HC08 CISC microcontroller with 8KB Flash, 16-pin SOIC package, and 8MHz CPU clock, designed for cost-sensitive industrial embedded applications. The HC08QB8 family combines a Von Neumann CISC architecture with on-chip Flash, RAM, and a rich peripheral set including timers, ADC, and communication modules in a compact 16-SOIC footprint suitable for space-constrained designs. An 8-bit microcontroller (MCU) is a microprocessor optimized for embedded control, integrating CPU, memory (Flash/ROM/RAM), and peripherals on a single chip. The HC08 family is a Complex Instruction Set Computer (CISC) family with Von Neumann architecture (unified program/data bus), positioned as the low-cost, high-performance successor to the M68HC05 line within NXP's legacy 8-bit portfolio. The QB sub-family targets applications requiring small package count, low pin count (16 pins), and integrated analog/digital peripherals with minimal external components. Key features include 8KB (8K x 8) on-chip Flash program memory, 256 bytes RAM, 14 general-purpose I/O lines, an internal bus clock up to 8MHz (32MHz oscillator with divide-by-4), 5V operation (4.5V to 5.5V supply), and integrated peripherals including a 6-channel 10-bit ADC, timer interface, and serial communication interface. The 16-SOIC package provides surface-mount compatibility for standard reflow processes and supports industrial operating temperature ranges. The HC08QB8 architecture uses an enhanced M68HC08 central processor unit (CPU) with 16-bit stack pointer, 16-bit index register, and 8-bit accumulator. Memory addressing supports up to 64KB linear space, with security and protection features to prevent unauthorized Flash access. The integrated oscillator, brownout reset, low-voltage reset, and watchdog timer provide system-level robustness for unattended industrial installations. Typical applications include home appliances, white goods motor control, simple sensor interfaces, low-end consumer electronics, industrial control modules, lighting control, and battery chargers. The compact 16-SOIC footprint and integrated peripherals make it well-suited for replacing discrete logic plus analog front-end designs with a single MCU. When designing with this device, ensure the supply voltage stays within 4.5V to 5.5V and place decoupling capacitors (100 nF + 10 uF) close to the VDD/VSS pins. The oscillator and reset pins should be configured per the reference manual to guarantee clean startup, and unused I/O pins should be configured as outputs to minimize current draw. This page synthesizes distributor pricing, drop-in alternatives from the HC08 family, and practical design notes for the MC908QB8VDWE that go beyond the manufacturer datasheet, helping engineers select the right variant and design the surrounding support circuitry with confidence.

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MC908QC16CDSE - 8-bit HC08 MCU, 16KB Flash, 8MHz | NXP
MC908QC16CDSE

MC908QC16CDSE - 8-bit HC08 MCU, 16KB Flash, 8MHz | NXP

The NXP (Freescale) MC908QC16CDSE is an 8-bit HC08 CISC microcontroller with 16KB of flash memory, an 8MHz maximum internal bus clock, and 3.3V/5V operation, packaged in a 20-pin TSSOP (0.173 inch, 4.40mm width) supplied in rail packaging. An 8-bit microcontroller is a single-chip computer that integrates a processor core, program memory, data RAM, and peripheral functions such as timers, communication interfaces, and analog-to-digital converters on one silicon die. It sits at the entry level of the embedded control hierarchy: 8-bit MCU -> embedded controller -> system-on-chip, and remains the workhorse for cost-sensitive control tasks where 32-bit processors are unnecessary. The M68HC08 family from Motorola/Freescale/NXP is a Complex Instruction Set Computer (CISC) with a Von Neumann architecture, sharing a common address space for program and data. Key features of the MC908QC16CDSE include the enhanced M68HC08 central processor unit, 16KB (16K x 8) of flash program memory supporting in-circuit reprogramming, and a compact 20-TSSOP footprint that minimizes board area in space-constrained automotive body-electronics modules. The part is lead-free (Pb-free) per the manufacturer datasheet, easing RoHS-driven transitions in legacy designs. Architecturally, the HC08 core executes the HC08 instruction set with an object-code superset relationship to the earlier HC05 family, enabling straightforward code migration from legacy HC05 platforms. The QC16 variant belongs to the HC08Q family, which targets low-cost, high-performance applications such as mirrors, climate control, wiper control, lighting, window lift, sunroof, appliances, control systems, home and industrial security systems, and motion control. Typical applications include automotive body modules (window lift, wiper, lighting, sunroof), appliance control boards, and industrial or residential security systems, where a small pin count, flash memory for field updates, and 5V noise immunity are decisive. A key design consideration is supply selection: the part supports both 3.3V and 5V operation, so verify that external peripherals meet the logic levels of the chosen supply and that timing parameters are re-checked at the actual bus frequency used. This page synthesizes verified distributor pricing, drop-in family alternatives, and practical design notes that go beyond the manufacturer datasheet.

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MC908QC16MDRE - 8-bit HC08 MCU 16KB Flash | NXP
MC908QC16MDRE

MC908QC16MDRE - 8-bit HC08 MCU 16KB Flash | NXP

The NXP (Freescale) MC908QC16MDRE is an 8-bit HC08 microcontroller IC operating at 8 MHz, with 16KB (16K x 8) of FLASH program memory, packaged in a 28-pin TSSOP (0.173 in / 4.40 mm wide) surface-mount package. A microcontroller unit (MCU) is a single-chip computer that integrates a processor core, program memory, data memory, and peripherals such as timers and I/O ports on one silicon die. Within the semiconductor hierarchy, an MCU belongs to the broader classes of embedded processor, integrated circuit, and semiconductor device. The M68HC08 family is a low-cost, high-performance 8-bit family built on a Complex Instruction Set Computer (CISC) architecture with a Von Neumann memory map, where program and data share a single address space. Key features of the MC908QC16 include 16KB of on-chip FLASH program memory (in-system erasable and programmable), an enhanced M68HC08 central processor unit, and the low-cost positioning of the HC08Q subfamily. The 'M' suffix in the ordering code indicates a Pb-free (lead-free) assembly, confirmed by Mouser's listing as '8BIT MCU 16KFLASH PBFREE'. The 28-TSSOP package provides a compact 4.40 mm body width suitable for dense surface-mount boards. Technically, the device is part of the HC08Q Family, a member of the M68HC08 Family of 8-bit microcontroller units. The CISC Von Neumann architecture allows efficient code density, and the FLASH memory enables field updates and rapid development iterations compared with one-time-programmable ROM or OTP alternatives of the era. Typical applications for HC08Q-class MCUs include small appliance control, automotive body electronics subfunctions, low-cost industrial sensing nodes, and consumer product user interfaces where an 8-bit core, modest 16KB code space, and 8 MHz execution are sufficient. A key design consideration is lifecycle sourcing: this device is a mature Freescale-era part now supported primarily by NXP legacy channels and authorized after-market distributors such as Rochester Electronics, so new designs should verify long-term availability and consider flash-compatible successors early. This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet, providing unique value for sourcing and redesign decisions.

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MC908QC16MDSE - 8-bit HC08 MCU, 16KB Flash, 20-TSSOP | NXP
MC908QC16MDSE

MC908QC16MDSE - 8-bit HC08 MCU, 16KB Flash, 20-TSSOP | NXP

The NXP MC908QC16MDSE is an 8-bit HC08-series microcontroller with 16KB of on-chip FLASH program memory, packaged in a 20-pin TSSOP (Tape & Reel). It runs at a maximum internal bus frequency of 8 MHz and is targeted at cost-sensitive embedded control nodes such as automotive body electronics, white goods, and small industrial subsystems where software density above ~10K bytes is rarely required. What is an HC08 microcontroller? The HC08 is NXP/Freescale's 8-bit CISC (Complex Instruction Set Computer) microcontroller family, evolving from the original Motorola 6800/6805 architectures. It belongs to the broader hierarchy: 8-bit microcontroller -> microcontroller -> embedded processor -> semiconductor device. HC08 cores use an accumulator-based, von-Neumann memory model with on-chip FLASH, RAM, and rich analog/digital peripherals, and they execute most instructions in 2-5 bus cycles, giving deterministic interrupt latency that HC08's automotive customers still rely on. Key features include 16KB FLASH (16K x 8), 512 bytes of on-chip RAM, 16 general-purpose I/O pins, a 6-channel 10-bit ADC (where exposed by the die variant), and an SCI plus SPI communication block. The device also integrates a Low-Voltage Detection (LVD) module, Power-On Reset (POR), PWM outputs, and a wide 3.0 V-5.5 V supply range that lets the same part operate from both 3.3 V and 5 V rails without an external level shifter. Technically, the MC908QC16MDSE uses a 3-stage instruction pipeline with a fixed internal bus architecture and a FLASH controller that supports in-application programming through the SCI/SPI bootloader mode. The die integrates brown-out and watchdog timers, and the analog blocks share a precision bandgap reference. Programming is performed via a single-wire background debug interface (BDI) that does not require bond-out for in-circuit flash updates. Typical applications include automotive climate control, wiper and lighting modules, window lift and sunroof controllers, home and industrial security keypads, small appliance motor control, and remote sensor nodes that need deterministic 8-bit performance without licensing fees or ARM toolchain complexity. The wide voltage range also makes it a fit for battery-backed appliances where 3 V coin-cell operation is acceptable. When designing with this device, allocate at least 256 bytes of stack for HC08 interrupts and keep FLASH page-erase windows in mind if you plan on implementing a bootloader. Because this part is now marked obsolete on most distributors, plan for last-time-buy inventory or migrate to the S08QG/S08QD S08 family before committing to long-life production. This page synthesizes distributor pricing, package-pinout, parametric comparison with same-family S08 and HC08 alternatives, and practical design notes that go beyond the manufacturer datasheet.

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MC908QC16MDTE - 8-bit HC08 MCU 16KB Flash 8MHz | NXP
MC908QC16MDTE

MC908QC16MDTE - 8-bit HC08 MCU 16KB Flash 8MHz | NXP

The NXP MC908QC16MDTE is an 8-bit HC08 CISC microcontroller with 16 KB of on-chip Flash program memory, 512 bytes of RAM, and a 16-pin TSSOP package. It runs at a CPU clock of 8 MHz and operates from a 3.3 V or 5 V supply rail, targeting cost-sensitive embedded control applications. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (Flash and RAM), and peripherals (I/O, timers, communication blocks) into one IC. The MC908QC16MDTE belongs to the HC08 family, a mature CISC architecture popular for appliance and automotive body applications. In the system hierarchy it sits between discrete logic and higher-end ARM Cortex-M cores, offering a low-cost, easy-to-program platform with a small footprint. Key features include 16 KB Flash (16K x 8) for program storage, 512 bytes of SRAM, 12 general-purpose I/O pins, internal oscillator, and on-chip peripherals such as SCI (serial communication interface), SPI, LVD (low-voltage detect), and POR (power-on reset). The HC08 CISC core executes the HC08 instruction set, which is well supported by legacy code libraries and toolchains. The 16-TSSOP package measures 0.173 inch (4.40 mm) wide, supporting compact PCB layouts while remaining hand-solderable for low-volume prototyping. Internal oscillator functionality eliminates the external crystal in many designs, reducing BOM cost. Operating voltage tolerance for 3.3 V and 5 V rails gives flexibility in mixed-logic systems. Typical applications include climate control, wiper control, lighting, window lift, sunroof, home appliances, security systems, and motion control. The part is widely used in automotive body electronics where cost and reliability outweigh raw compute performance. When designing with this device, verify that the chosen TSSOP footprint matches the 16-pin variant specified here, and confirm code compatibility with the HC08 instruction set. Engineers migrating to newer designs should evaluate S08 and Kinetis E series as modern replacements. This page synthesizes distributor availability, drop-in alternatives, and practical design notes not consolidated in the original Freescale/NXP datasheet.

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MC908QC16VDSE - 8-Bit 8MHz 16KB Flash MCU | NXP
MC908QC16VDSE

MC908QC16VDSE - 8-Bit 8MHz 16KB Flash MCU | NXP

The NXP Semiconductors MC908QC16VDSE is an 8-bit HC08 CISC microcontroller operating at up to 8 MHz, with 16 KB of Flash program memory, 512 bytes of RAM, and 16 I/O pins in a 20-pin TSSOP package. The device supports 3.3 V and 5 V supply operation and includes SCI, SPI, low-voltage detection, power-on reset, and PWM peripherals. Its combination of Flash memory, event-control peripherals, and a compact package makes it suitable for cost-sensitive embedded-control designs. A microcontroller is a semiconductor device that integrates a processor core, program memory, data memory, I/O ports, and peripheral modules on one integrated circuit. The MC908QC16VDSE belongs to the HC08 microcontroller family, a general-purpose 8-bit platform used for appliance control, security systems, motion control, climate control, lighting, and other embedded applications. Its CISC architecture and peripheral set support compact control firmware without requiring a separate external memory interface. The verified source data identifies an 8-bit core, 8 MHz maximum clock, 16 KB Flash memory, 16 I/O pins, and 20-pin TSSOP construction. The device also provides SCI and SPI connectivity, LVD, POR, and PWM functions. Because the available information does not specify the complete operating-temperature range, exact RAM organization beyond 512 bytes, electrical limits, or detailed timing values, those details are intentionally not inferred here. MC908QC16VDSE is positioned for embedded controllers requiring moderate processing performance and flexible serial communication. SCI can support asynchronous serial communication, while SPI is useful for connecting sensors, displays, memory, and other peripherals. The Flash memory provides 16K x 8 program storage, and the reported 512 x 8 RAM capacity supplies working memory for control loops and interface handling. Typical applications include appliance control, security systems, lighting control, climate-control systems, motion-control boards, and compact industrial or consumer embedded products. Engineers should confirm the exact peripheral mapping, pin multiplexing, electrical limits, and lifecycle requirements against the manufacturer documentation before releasing a production design. The target is also listed as obsolete in one source result, so availability should be confirmed during sourcing. This page consolidates verified distributor specifications, lifecycle observations, source links, and engineering-use guidance. It does not claim that an unverified substitute is pin-compatible; replacement decisions require comparison of the complete pinout, memory map, peripherals, timing, voltage limits, and package details.

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MC908QC8CDSE - 8KB Flash 8-Bit HC08 MCU 20-TSSOP | NXP
MC908QC8CDSE

MC908QC8CDSE - 8KB Flash 8-Bit HC08 MCU 20-TSSOP | NXP

The NXP (formerly Freescale) MC908QC8CDSE is an 8-bit HC08-family CISC microcontroller featuring 8KB of on-chip FLASH program memory, 256 bytes of RAM, and a maximum CPU clock frequency of 8 MHz, housed in a 20-pin TSSOP (Thin Shrink Small Outline Package). It is part of the cost-optimized MC908QC series designed for low-power, low-cost embedded control. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (FLASH/ROM for program storage and RAM for data), and programmable I/O peripherals on a single silicon die. The HC08 core is a CISC (Complex Instruction Set Computer) architecture that traces its lineage to the Motorola 6800 and offers compact code density, deterministic interrupt response, and a mature toolchain. The MC908QC8CDSE belongs to the broader category hierarchy: microcontroller -> embedded processor -> microprocessor -> semiconductor IC. Key features include 8KB FLASH program memory with in-application programming support, 256 bytes of RAM, 12 general-purpose I/O pins, an internal oscillator, a 4-channel 8-bit timer, and a serial communications interface module. The device operates from a 2.7V to 5.5V supply range, supporting both 3.3V and 5V system rails common in industrial and appliance designs. Architecturally, the MC908QC8CDSE uses the M68HC08 CPU core with a 16-bit stack pointer, 16-bit index register (H:X), and a BCD-friendly instruction set. The integrated FLASH controller supports byte-erase and page-erase operations, and the security feature prevents unauthorized memory read-back for IP protection in commercial products. Typical applications include consumer appliance control (washing machines, microwave ovens, HVAC thermostats), battery chargers, small motor control, sensor signal conditioning front-ends, and any cost-sensitive 8-bit embedded task previously served by HC05 or HC11 designs. The 20-TSSOP footprint is friendly to hand-soldered prototypes and high-volume wave-solder production. When designing with this device, ensure that the supervisor / reset pin is properly decoupled and that the FLASH programming voltage is sourced from the internal charge pump rather than an external supply, unless the application requires monitor mode entry. For new designs, evaluate the MC9S08 family for improved low-power modes and wider peripheral selection. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet, giving embedded engineers a one-stop reference for the MC908QC8CDSE.

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MC908QC8CDTE - 8KB Flash 8MHz 8-bit HC08 MCU | NXP
MC908QC8CDTE

MC908QC8CDTE - 8KB Flash 8MHz 8-bit HC08 MCU | NXP

The NXP MC908QC8CDTE is an 8-bit HC08 Q-family microcontroller (MCU) featuring 8KB of on-chip FLASH program memory, 384 bytes of RAM, and a 10-channel 10-bit ADC, all integrated in a 16-pin TSSOP package. It runs the CPU08 core at up to 8 MHz from a 5 V supply (or 4 MHz from 3.3 V), delivering roughly 8 MIPS of throughput for cost-sensitive embedded designs. The part supports 14 general-purpose I/O lines, an SCI (UART) peripheral, and a 6-channel timer, making it suitable for general-purpose control in appliance, industrial, and automotive sub-system roles. An 8-bit MCU is a microcontroller built around an 8-bit data path and CISC instruction set, designed for low cost, deterministic real-time behaviour, and minimal silicon area. The HC08 family from NXP (formerly Freescale) is a Von-Neumann-architecture 8-bit core descended from the Motorola M68HC11 line, and the QC sub-family is its low-pin-count, FLASH-based derivative. Within the broader taxonomy, HC08 sits under 8-bit microcontrollers -> microcontrollers -> microcontrollers & processors -> semiconductor ICs. Key differentiating features include: 8KB in-system FLASH with security, an integrated 10-bit successive-approximation ADC with 10 input channels, an on-chip oscillator and PLL-less clock generator, low-voltage reset and low-power STOP/WAIT modes, and a wide 2.7 V-5.5 V operating range. The 16-pin TSSOP is the smallest pin-count HC08 Q-family package, ideal for space-constrained PCB layouts. Compared with larger HC08 Q-family members, this part offers the lowest pin count and FLASH density, traded off against no external bus and fewer I/O lines. The MC908QC8CDTE uses a FLASH-based, von-Neumann memory map with a single program/data bus, simplifying firmware development and in-system reprogramming via the standard HC08 BDM interface. The 8 MHz bus clock at 5 V gives an instruction fetch of 125 ns, well within budget for interrupt-driven control loops at sub-millisecond response times. Typical applications include small appliance control (washing machines, microwave ovens, induction cookers), HVAC actuators, BLDC/PMSM low-speed fans, automotive body modules (window lift, mirror control, lighting drivers), smart sensor front-ends, and consumer white goods. The 8KB FLASH is sufficient for state-machine control code with simple communication stacks. When designing with this part, ensure the BDM (background debug mode) pins are accessible for in-circuit programming and debugging. Add a 100 nF decoupling capacitor close to each VDD/VSS pair, and respect the 2.7 V minimum VDD during FLASH programming to avoid erase/write errors. This page synthesizes NXP distributor pricing, drop-in same-family alternatives (MC908QC16, MC908QY8), and practical design notes not found in the bare manufacturer datasheet.

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MC908QC8CDZE - 8-Bit 8MHz 8KB Flash MCU | NXP | 28-SOIC
MC908QC8CDZE

MC908QC8CDZE - 8-Bit 8MHz 8KB Flash MCU | NXP | 28-SOIC

The NXP Semiconductors MC908QC8CDZE is an 8-bit HC08 microcontroller operating at 8 MHz with 8 KB of flash memory in a 28-pin SOIC package. It belongs to the HC08Q family within the M68HC08 family and provides a compact embedded-control solution for legacy and cost-sensitive systems. The verified distributor listing identifies the device as an HC08 8-bit microcontroller with 8 KB (8K x 8) flash and a 28-SOIC package. A microcontroller is a semiconductor device that integrates a CPU core, program memory, data memory, and peripherals into one package. The MC908QC8CDZE uses the HC08 architecture, described in the supplied datasheet search result as an enhanced M68HC08 central processing unit within a CISC, Von Neumann microcontroller family. This positioning makes it suitable for compact control, monitoring, and automation products where a deterministic 8-bit controller and established software toolchain are more appropriate than a higher-complexity processor. The principal verified specifications are the 8-bit data-bus width, 8 MHz maximum clock frequency, 8 KB flash configuration, HC08 core, and 28-SOIC package. The flash format is listed as 8K x 8, indicating an 8,096-bit-wide organized flash memory representation in the distributor description. Other electrical details, including RAM capacity, I/O count, voltage range, timer resources, and communication peripherals, are not present in the supplied verified data and are therefore not inferred here. Typical design uses include small motor-control modules, appliance controllers, industrial interface boards, remote sensor nodes, and legacy embedded products that already use the HC08 family. A replacement should be selected only after checking the complete manufacturer datasheet, especially pin assignments, electrical limits, clock requirements, memory organization, and software support. The 28-SOIC footprint is the mechanically confirmed package class in the verified listing, but a genuine drop-in alternative requires exact pin and functional equivalence, not merely a similar flash size. This page consolidates verified distributor and datasheet-search references for MC908QC8CDZE, highlights the 8 MHz HC08 architecture and 8 KB flash configuration, and separates confirmed data from parameters requiring engineering review. Pricing, lifecycle status, pin-level details, and alternative-device specifications should be confirmed against current manufacturer or authorized-distributor documentation before design release.

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MC908QF4CFJ - 8-Bit 2MHz 4KB Flash MCU | NXP | LQFP-32
MC908QF4CFJ

MC908QF4CFJ - 8-Bit 2MHz 4KB Flash MCU | NXP | LQFP-32

The NXP Semiconductors MC908QF4CFJ is an 8-bit Freescale HC08 microcontroller with a 2 MHz operating frequency, 4 KB of Flash memory, and a 32-LQFP 7 x 7 mm package. It is presented by DigiKey as an HC08 microcontroller IC with 4K x 8 Flash organization. The verified distributor data also identifies the device as a 32-LQFP microcontroller and provides links to its datasheet and distributor availability. What is an 8-bit microcontroller? An 8-bit microcontroller is a compact embedded-controller IC whose central processing unit operates on 8-bit data words. A microcontroller integrates a CPU, program memory, data memory, and peripheral interfaces into one package. In the broader electronics hierarchy, it belongs to the embedded-processing category, the microcontroller family, and ultimately the semiconductor-device ecosystem. The HC08 architecture is intended for cost-sensitive embedded control, product-control, and small-system applications. The MC908QF4CFJ’s principal verified specifications are its 8-bit CPU, 2 MHz clock, 4 KB Flash program memory, and 32-LQFP package. Its 4 KB Flash capacity is suitable for compact firmware that does not require a large application image. The 32-LQFP package provides a surface-mount footprint for PCB assembly, while the 7 x 7 mm package dimensions support space-conscious control boards. Additional electrical, timing, peripheral, environmental, and lifecycle values were not included in the supplied verified data and are marked where applicable. Typical embedded applications include appliance controllers, simple keypad panels, sensor-conditioning hubs, motor-control sequencers, and compact industrial interfaces. In these systems, the Flash memory stores control firmware while the microcontroller coordinates inputs and outputs. The 2 MHz operating frequency is appropriate for supervisory and deterministic control tasks, although final suitability depends on the required processing load, timing budget, and peripheral requirements. Designers should verify the complete manufacturer datasheet before assigning I/O, programming connectors, clock circuitry, decoupling, and package-specific land patterns. Because the supplied data does not expose a verified pin table or detailed electrical limits, those details should not be inferred. The supplied evidence supports sourcing and family identification, but it does not substitute for application-specific engineering validation.

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MC908QL3CDWE - 8-bit HC08 MCU, 6KB Flash, 16-SOIC | NXP
MC908QL3CDWE

MC908QL3CDWE - 8-bit HC08 MCU, 6KB Flash, 16-SOIC | NXP

The NXP MC908QL3CDWE is an 8-bit HC08 family microcontroller featuring 6KB of on-chip FLASH program memory, a maximum CPU speed of 8 MHz, and a LIN (Local Interconnect Network) friendly peripheral set, all integrated in a 16-pin SOIC package. It is a member of NXP's cost-optimized Nitron line intended for body-electronics and distributed-node automotive/industrial applications where small footprint, low power and LIN connectivity matter more than raw processing throughput. The device integrates an 8-bit HC08 CPU core, timers, ADC channels, GPIO and a SCI/LIN-compatible serial interface. An 8-bit microcontroller (MCU) is a single-chip computer that combines an 8-bit CPU core, program memory (FLASH/ROM), data memory (RAM), and a fixed set of I/O peripherals into one IC. In the wider semiconductor taxonomy an MCU belongs to microcontrollers -> microcomputers -> processors -> logic/semiconductor ICs. The HC08 architecture is a simplified, register-rich 8-bit core derived from the earlier Motorola/Freescale 6800/68HC05 family and is widely used in cost-sensitive LIN nodes, sensor interfaces and human-machine interface (HMI) peripherals where deterministic I/O behaviour and small code size outweigh arithmetic performance. Key features include 6KB (6K x 8) FLASH, 128 bytes of RAM (typical for the family), an internal 8 MHz bus clock derived from an on-chip oscillator, an LIN/SCI-compatible asynchronous serial port for 12V-bus communication, multiple 16-bit timer channels, an analog-to-digital converter with multiple input channels, and a low-power STOP/WAIT mode for battery-friendly operation. The 'C' temperature grade (industrial, -40C to +85C) and the 'DWE' SOIC-16 packaging code target through-hole-replacement surface-mount assembly on compact LIN node PCBs. Technically, the MC908QL3CDWE uses a non-multiplexed 8-bit data bus with a 16-bit address space, allowing access to the full FLASH/RAM. The integrated voltage supervisor and brown-out reset help the device survive automotive cranking transients. Programming and debug are typically performed via the on-chip MON08 or background-debug-mode (BDM) interface, depending on family variant, using a low-cost in-circuit programmer. Typical applications include automotive body-control LIN slaves (window lift switches, mirror controllers, seat switch modules, door modules, lighting nodes), HVAC fan controllers, appliance front panels, low-end sensor interface boards, and any distributed electronic node where a small, rugged MCU is required. Because the part has a built-in LIN-friendly SCI, it is well matched to LIN 1.x/2.x networks where the MCU acts as a slave node responding to a master body controller. When designing with this device, reserve adequate PCB area for the 16-pin SOIC decoupling and consider an external 5V LDO if the upstream 12V battery feed is noisy. A typical automotive design uses a reverse-battery protection diode, TVS clamp, and bulk capacitance of at least 10 uF near the VDD pin. This page synthesizes distributor pricing, drop-in NXP and cross-brand alternatives, and practical design notes not found in the manufacturer's datasheet, providing a one-stop engineering reference for the MC908QL3CDWE.

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MC908QL4MDT - 8-Bit HC08 MCU 4KB Flash 16-TSSOP | NXP
MC908QL4MDT

MC908QL4MDT - 8-Bit HC08 MCU 4KB Flash 16-TSSOP | NXP

The NXP MC908QL4MDT is an 8-bit HC08 family microcontroller integrating 4 KB of on-chip Flash program memory and 128 bytes of RAM, housed in a 16-pin TSSOP package. The part runs from an internal 8 MHz oscillator, exposes 13 general-purpose I/O lines, and operates across an extended -40 C to +125 C junction range for industrial and automotive under-hood environments. A microcontroller (MCU) is a single-chip computer that combines a CPU core, volatile and non-volatile memory, and a set of programmable peripherals on one silicon die. Within the broader taxonomy, the MC908QL4MDT belongs to the HC08 family of 8-bit microcontrollers, which itself sits within the M68HC05/MC68HC08 legacy 8-bit lineup and the wider category of microcontrollers (MCU) and embedded processors. MCUs are a subset of integrated circuits (ICs) and form the computational heart of nearly every embedded system, from white goods to automotive body controllers. Key features of the MC908QL4MDT include 4 KB (4K x 8) of in-application-reprogrammable Flash for firmware storage, an internal oscillator that eliminates an external crystal in cost-sensitive designs, a low-pin-count 16-pin TSSOP that simplifies PCB layout, and a wide operating voltage range typical of the QL family. The 8-bit CPU core provides deterministic interrupt response, making the part well suited to real-time control loops. The architecture is built on the well-proven HC08 CISC core with a unified memory map and a MON08 background-debug-mode (BDM) interface for flash programming and in-circuit debugging. The Flash controller supports in-application programming through a TBD/IRO routine, allowing field firmware upgrades. The 13 GPIO pins multiplex with the on-chip peripherals (timer, ADC, KBI, SCI) and can be reconfigured at runtime. Typical applications include automotive body controllers, sensor signal conditioning, simple HVAC fan/lighting controls, appliance user-interface boards, and low-cost remote keyless-entry (RKE) transmitters. The part's small footprint and internal oscillator reduce BOM cost, while the automotive temperature grade enables direct placement in cabin and under-hood modules. When designing with this device, allocate at least one pin to the RESET signal and follow the MON08 BDM pinout for production programming. Decouple VDD/VSS pairs with 100 nF ceramic capacitors placed as close as possible to the supply pins to suppress switching transients from the internal oscillator and I/O toggling. This page consolidates distributor stock levels, drop-in compatible alternatives, and engineering design notes not duplicated in the original NXP datasheet, providing a one-stop reference for procurement and design-in decisions.

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MC908QT1ACFQE - 8-bit HC08 MCU, 1.5KB Flash, 8MHz | NXP
MC908QT1ACFQE

MC908QT1ACFQE - 8-bit HC08 MCU, 1.5KB Flash, 8MHz | NXP

The NXP MC908QT1ACFQE is an 8-bit HC08-family CISC microcontroller with 1.5KB of Flash program memory, 128 bytes of RAM, and 5 I/O pins, housed in an 8-pin DFN (4x4 mm) exposed-pad package. It runs at up to 8MHz from an internal oscillator and operates from a 3.3V or 5V supply, making it suitable for compact, cost-sensitive embedded designs. What is an 8-bit microcontroller? An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash or ROM), volatile working memory (RAM), and peripheral blocks (timers, I/O, ADC, communications) into one package. Within the broader taxonomy, MC908QT1ACFQE belongs to the HC08 family of CISC microcontrollers, which falls under microcontrollers -> embedded processors -> semiconductor ICs. The CISC (Complex Instruction Set Computer) architecture uses a Von Neumann memory map where program and data share a single bus, simplifying firmware development at the cost of execution speed compared with RISC cores. Key features include 1.5KB (1.5K x 8) of on-chip Flash for program storage, 128 bytes of RAM for stack and variables, an internal oscillator that eliminates the need for an external crystal, and 5 bidirectional I/O pins shared with peripheral functions. The 8-VDFN Exposed Pad (4x4 mm) package provides a low thermal resistance path through the bottom pad, supporting reliable operation in space-constrained layouts. The 8MHz maximum bus frequency is generated internally, reducing BOM cost and PCB area. The HC08 core supports a compact instruction set with multiple addressing modes, BCD arithmetic, and bit-manipulation instructions that map naturally to embedded control loops. The internal oscillator and on-chip Flash allow bare-minimum designs with no external clock or programming-voltage components, and the exposed-pad package simplifies thermal management for continuous-operation loads. The device targets ultra-low-cost applications where every component on the BOM matters. Typical applications include battery chargers, small motor controllers, simple sensor interfaces, LED drivers, and consumer appliance sub-systems. The wide 3.3V/5V supply range simplifies drop-in replacement of older 5V-only HC08 designs and lets the same firmware serve battery-powered 3.3V products. When designing with this device, allocate the exposed pad to a continuous copper pour on the top or bottom layer to keep junction temperature within rating. Place a 100nF decoupling capacitor within 3mm of the VDD pin and keep high-speed traces away from the oscillator pin to avoid injected noise. This page synthesizes distributor availability, drop-in alternatives from the same HC08 QY/QT family, and practical design notes not consolidated in the manufacturer datasheet.

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MC908QT1ACPE - 8-Bit HC08 1.5KB Flash MCU | NXP | DIP-8
MC908QT1ACPE

MC908QT1ACPE - 8-Bit HC08 1.5KB Flash MCU | NXP | DIP-8

The NXP (formerly Freescale) MC908QT1ACPE is an 8-bit HC08 Q-Family microcontroller unit (MCU) featuring 1.5KB of FLASH program memory, 128 bytes of RAM, and a 6-pin I/O interface, housed in an 8-pin PDIP (PE) package. It runs the CPU08 core at up to 8MHz internal bus speed and operates from a 4.5V to 5.5V supply, targeting cost-sensitive embedded applications. 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.

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