Microcontroladores

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MC9S08QD2MSC - 8-bit 16MHz 2KB MCU | NXP Semiconductors
MC9S08QD2MSC

MC9S08QD2MSC - 8-bit 16MHz 2KB MCU | NXP Semiconductors

NXP Semiconductors MC9S08QD2MSC is an 8-bit S08QD microcontroller with a 16 MHz maximum clock frequency, 2 KB of flash memory, and an 8-pin SOIC package. It is positioned as the lowest-end member of the S08 8-bit microcontroller architecture, providing a compact and cost-conscious platform for embedded control designs that do not require a high-pin-count MCU or extensive on-chip memory. The device is supplied in reel-reel packaging with a minimum package quantity of 2500 units. An S08QD microcontroller is a small, event-oriented embedded controller within the broader hierarchy of microcontrollers, embedded processors, and semiconductors. Its role is to execute firmware, read inputs, control outputs, and coordinate low-complexity peripheral functions. The 8-bit S08 CPU and 16 MHz operating rate make this device appropriate for compact products where a deterministic, straightforward control architecture is preferred over a higher-performance processor platform. The principal verified feature set includes 8-bit processing, 2 KB of program flash, a 16 MHz operating frequency, and an 8-pin SOIC package. These values define the part's strongest design positions: small control logic, compact PCB implementation, and low component cost. Because the verified product information does not expose RAM size, supply-voltage limits, GPIO count, ADC characteristics, or peripheral configurations, those attributes must be confirmed in the manufacturer datasheet before a design is released. The S08 architecture provides a dedicated hardware-debug-oriented development ecosystem and a compact instruction set suited to basic embedded control. Engineering use should account for the limited 2 KB flash allocation, which can constrain code size, lookup tables, and multi-function firmware. Firmware organization, bootloader requirements, and production programming method should therefore be evaluated early rather than after PCB layout is frozen. Typical use cases include simple appliance controls, small sensor-interface products, compact actuator controllers, low-pin-count embedded nodes, and cost-sensitive products where the 16 MHz S08 core provides sufficient execution speed. The 8-pin SOIC package simplifies hand assembly and automated assembly while supporting a modest number of external connections. The primary design consideration is memory availability. With only 2 KB of flash, modular firmware, extensive diagnostics, and multiple communication stacks may not fit. Designers should preserve pin-compatible PCB options, verify the final pin mapping and electrical limits from the NXP datasheet, and validate any production programming and debug configuration before volume manufacturing. This page consolidates verified manufacturer and distributor information, practical memory-planning guidance, package constraints, pricing context, and verified same-family replacement information that is not consolidated on a typical distributor listing.

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MC9S08QD2VSC - 8-bit S08 MCU, 2KB Flash, 16MHz, SOIC-8 | NXP
MC9S08QD2VSC

MC9S08QD2VSC - 8-bit S08 MCU, 2KB Flash, 16MHz, SOIC-8 | NXP

The NXP MC9S08QD2VSC is an 8-bit HCS08-family microcontroller with 2KB Flash, 256B RAM, 16MHz CPU clock, and a 4-channel 10-bit ADC, housed in an 8-pin SOIC (SO-8) package. It is the cost-optimized entry point in NXP's S08QD series of low-end 8-bit microcontrollers and operates across 2.7V to 5.5V with 6 general-purpose I/O pins. An 8-bit microcontroller (MCU) is a small, self-contained computing system-on-chip built around an 8-bit central processing unit, integrating program memory, working RAM, I/O peripherals, timers, and analog blocks into a single silicon die. The S08QD family sits at the very bottom of NXP's HCS08 architecture tree (HCS08 -> S08 -> S08QD -> MC9S08QD2), positioned for cost-sensitive embedded control in appliances, white goods, sensor interfaces, and consumer devices. The CPU executes the HC08 instruction set (with the added BGND instruction for background debugging), giving it a broad installed-code base and tool support. Key features include 2KB of on-chip Flash (1.5KB usable with 0.5KB reserved for EEPROM-like emulation), 256 bytes of RAM, a 4-channel 10-bit analog-to-digital converter, up to 16MHz bus clock, and an asynchronous background debug interface. The device integrates a low-power wait and stop mode with wakeup from interrupts, plus internal pull-ups on selected I/O to reduce external component count. The 8-SOIC footprint keeps board area small for tightly-packed designs. Technically, the MC9S08QD2VSC builds on the same HCS08 core that powers higher-tier S08 devices, so engineers can move up the family (QD4, SH, QG, AC) for more memory or peripherals without rewriting code. An integrated voltage regulator and brownout detector simplify the analog supply chain, while the internal clock source option removes the need for an external crystal in cost-sensitive applications. Typical applications include small appliance control, BLDC motor commutation in fans and pumps, sensor conditioning, LED lighting controllers, and battery-powered consumer toys where low BOM cost and small footprint dominate the design. The 4-channel 10-bit ADC handles basic analog sensing without an external converter. A key design consideration is to plan I/O pin count early: only 6 GPIO pins are exposed on the 8-SOIC package, so designs needing more I/O should consider the larger S08QD4 in TSSOP-16 or migrate to the S08AC family. The internal oscillator is sufficient for most tasks, but timing-critical serial communication may require an external reference. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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MC9S08QD4CPC - 16MHz 8-bit MCU 4KB Flash DIP-8 | NXP
MC9S08QD4CPC

MC9S08QD4CPC - 16MHz 8-bit MCU 4KB Flash DIP-8 | NXP

NXP Semiconductors MC9S08QD4CPC is an 8-bit S08QD microcontroller with an enhanced HCS08 core, 16 MHz maximum operating frequency, 4 KB internal Flash memory and an 8-pin DIP package. It is positioned as a low-cost member of the S08 8-bit microcontroller architecture for compact control systems that require modest processing performance, embedded program memory and mixed-signal measurement capability. An HCS08 microcontroller is an 8-bit embedded controller used to execute firmware, read inputs, control outputs and manage system timing. Within the hierarchy of embedded processing, the HCS08 core belongs to the 8-bit MCU family, while the MC9S08QD4 device adds Flash program storage, RAM, general-purpose I/O and an analog-to-digital converter. The MC9S08QD4 family is specifically described as the lowest-end member of the S08 8-bit architecture. The device operates at up to 16 MHz and contains 4 KB of Flash organized as 4K x 8. Cross-reference information also identifies 0.256 KB of internal RAM, a four-channel 10-bit A/D converter and six general-purpose I/O pins. These resources suit compact consumer products, simple industrial controls, digital keypads, small motor or relay controllers, and low-cost sensing nodes where a larger MCU would add unnecessary cost and board area. The MC9S08QD4CPC is packaged in DIP-8, making it useful for prototype boards, through-hole educational platforms and manually assembled control modules. Its small pin count keeps the device appropriate for applications requiring limited external signals. The enhanced HCS08 instruction set and background debugging support help developers inspect program execution, set breakpoints and use in-circuit debugging during firmware development. Designers should confirm the exact pin assignments, peripheral multiplexing, voltage limits, clock configuration and power requirements in the NXP MC9S08QD4 data sheet before laying out a PCB. For battery-operated or low-energy designs, verify current consumption in each operating mode and whether the chosen clock and peripheral configuration meet the available power budget. This product page brings together the NXP device identity, manufacturer data sheet, distributor listing and a practical comparison with the documented MC9S08QD4MPC variant. It is intended to help engineers confirm package, memory, clock and peripheral requirements before requesting a quote or beginning a design-in.

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MC9S08QD4CSC - 8-bit S08 MCU 4KB Flash 16MHz | NXP
MC9S08QD4CSC

MC9S08QD4CSC - 8-bit S08 MCU 4KB Flash 16MHz | NXP

The NXP Semiconductors MC9S08QD4CSC is an 8-bit S08 (HCS08) microcontroller IC running at up to 16 MHz bus speed, integrating 4 KB (4K x 8) of Flash memory, 256 bytes of RAM, and a 4-channel 10-bit ADC in an 8-pin SOIC package. An 8-bit microcontroller (MCU) is a single-chip computer that combines a processor core, memory, and peripherals on one die, sitting at the entry level of the embedded control hierarchy: MCU -> microcontroller unit -> embedded processor -> semiconductor IC. The MC9S08QD4 belongs to the low-cost, high-performance HCS08 family, the lowest-end member of the S08 8-bit architecture from Freescale Semiconductor (now NXP). Key features include the enhanced HCS08 CPU with the HC08 instruction set plus the added BGND instruction, a background debugging system supporting non-intrusive in-circuit emulation, and single-breakpoint capability (plus two additional on-chip breakpoints). The device operates from 3.3V or 5V supplies and provides 6 general-purpose I/O pins. Technical depth comes from the S08 CISC architecture, which delivers efficient code density for small embedded control tasks. The on-chip 10-bit ADC with 4 input channels enables direct analog sensor acquisition, while the background debug controller (BDC) allows flash programming and debugging through a single-wire interface, reducing development cost in space-constrained designs. Typical applications include small appliances, low-cost analog sensor nodes, battery chargers, small motor control, and industrial auxiliary control where an 8-pin footprint and minimal BOM count matter. The SOIC-8 package suits compact, surface-mount PCBs. Design consideration: this part is listed as End of Life (EOL) on the NXP product page, so new designs should evaluate remaining-lifetime sourcing and consider the MC9S08QD2 or automotive S9S08QD4 family members where available. This page synthesizes distributor availability data, the NXP MC9S08QD4 datasheet, drop-in family alternatives, and EOL lifecycle guidance not found on standard distributor listings.

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MC9S08QD4MPC - 8-bit HCS08 MCU, 4KB Flash, DIP-8 | NXP
MC9S08QD4MPC

MC9S08QD4MPC - 8-bit HCS08 MCU, 4KB Flash, DIP-8 | NXP

The NXP MC9S08QD4MPC is an 8-bit HCS08 microcontroller with 4 KB of on-chip Flash, 256 bytes of RAM, and a 16 MHz enhanced HCS08 CPU core, housed in an 8-pin PDIP (DIP-8) through-hole package. It belongs to the cost-effective S08QD family, the lowest-end member of the S08 8-bit microcontroller architecture, and integrates a 4-channel 10-bit ADC, an internal clock source, and a background debug module (BDM) for in-circuit programming and debugging. An HCS08 microcontroller is a low-power, enhanced 8-bit CPU core derived from the legacy HC08 instruction set with the addition of the BGND instruction for background debug mode and a CISC architecture. Microcontrollers in this class sit beneath the broader category of embedded microcontrollers, themselves a subset of microprocessors and integrated circuits, and are typically deployed as the primary system controller in cost- and power-sensitive appliances, sensors, and human-interface devices where a 32-bit core would be overkill. Key features include 4 KB of Flash program memory, 256 bytes of RAM, six general-purpose I/O pins, a 4-channel 10-bit successive-approximation ADC, and an on-chip clock generator that supports an external crystal or resonator. The CPU executes instructions from the HC08 instruction set augmented by BGND, runs at up to 16 MHz (8 MHz bus), and supports single breakpoint setting during in-circuit debugging plus two additional breakpoints in on-chip debug logic. Typical applications include white-goods and small appliance controls, toys, low-end consumer electronics, LED lighting controllers, and battery-powered sensor nodes. The DIP-8 package makes it suitable for prototyping, breadboarding, education, and low-volume production runs where through-hole assembly is preferred over surface mount. When designing with this part, ensure the supply voltage stays within the MCU's specified VDD range and that the background debug pins are reserved on the PCB for in-circuit programming access. The DIP-8 footprint is intentionally chosen for hand-solderable, hobbyist-friendly designs rather than high-density production. This page synthesizes distributor pricing, drop-in same-package alternatives within the S08QD family, and practical design notes not collected in any single manufacturer document.

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MC9S08QD4MSC - 8-bit S08 MCU 16MHz 4KB Flash | NXP
MC9S08QD4MSC

MC9S08QD4MSC - 8-bit S08 MCU 16MHz 4KB Flash | NXP

The NXP MC9S08QD4MSC is an 8-bit S08 (HCS08) microcontroller with a 16 MHz bus-clocked S08 core, 4 KB (4K x 8) of FLASH program memory, and 256 bytes of RAM, housed in an 8-pin SOIC package. As the lowest-end member of the S08 8-bit architecture, it targets cost-sensitive embedded control designs. An 8-bit microcontroller (MCU) is a single-chip computing device that integrates a processor core, memory, and peripherals on one die. Within the system hierarchy, the S08QD family sits below larger S08, S12 (HCS12) and 32-bit families in the NXP portfolio, offering minimal pin count and minimal BOM cost for basic control tasks where a full-featured MCU is unnecessary. Key features include the enhanced HCS08 CISC CPU operating at up to 16 MHz, 4 KB of in-system-programmable FLASH, a 4-channel 10-bit ADC, and 6 general-purpose I/O pins. Background debug communication remains possible in STOP mode when ENBDM is set, enabling non-intrusive debugging through the single-wire background debug interface without consuming on-chip resources. Architecturally, the MC9S08QD4 shares the S08 core used across the broader QD family (QD2 and QD4 variants), which means code developed for the QD2 scales upward to the QD4 with more FLASH. The internal oscillator options and low pin count reduce external component count, and the ADC supports basic analog measurement such as temperature, voltage, or trim-pot sensing in compact products. Typical applications include small appliance control, simple battery-charger supervision, low-end automotive and industrial auxiliary functions, and replacement of discrete logic with a programmable device. The 8-pin SOIC fits space-constrained and cost-reduced PCB layouts. Design consideration: this part is officially listed by NXP as End of Life, so new designs should plan a migration path or secure last-time-buy inventory; NXP indicates automotive-specific variants of the QD series use part numbers starting with "S" (e.g., S9S08QD4). This page synthesizes distributor availability data, drop-in family alternatives, and EOL cross-reference guidance not consolidated in the manufacturer datasheet.

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MC9S08QD4MSCR - 8-bit S08 MCU, 4KB Flash, 16MHz | NXP
MC9S08QD4MSCR

MC9S08QD4MSCR - 8-bit S08 MCU, 4KB Flash, 16MHz | NXP

The NXP MC9S08QD4MSCR is an 8-bit HCS08 microcontroller in the cost-effective S08QD family, offering 4KB of Flash program memory, 256B RAM, and a 16MHz CPU in a compact 8-pin SOIC package. It integrates a 10-bit ADC, multiple timers, and an internal clock source for BOM-minimized designs. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data bus, optimized for cost, deterministic real-time behavior, and low-power operation in embedded systems. Within the broader taxonomy, the MC9S08QD4MSCR belongs to the 8-bit MCU -> HCS08 family -> S08QD sub-family -> NXP Kinetis/Motorola legacy 8-bit MCU line -> microcontroller -> semiconductor. 8-bit MCUs are widely deployed in white goods, sensor interfaces, simple motor control, and automotive body electronics where cost per IO dominates over raw compute throughput. Key features include the HCS08 CPU core with the BGND instruction, 4-channel 10-bit ADC, two 16-bit timers (TPM1/TPM2), 8-pin SOIC small-footprint packaging, and an operating voltage range of 2.7V to 5.5V. The MC9S08QD4MSCR also includes an internal clock, low-voltage detect (LVD), and an SCI/UART interface for asynchronous serial communication. Multiple package and pin variants in the S08QD family enable pin-compatible scaling between 2KB, 4KB, and 8KB Flash densities. Architecturally, the device uses a Von Neumann bus with separate Flash and RAM regions, background debug mode (BDM) for in-circuit programming and single-breakpoint debugging, and a hardware interrupt controller. The 16MHz internal bus clock provides 1.5 MIPS/MHz performance, sufficient for state-machine control loops in cost-sensitive applications. Typical applications include automotive body controllers, sensor signal conditioning, low-end BLDC/PMSM motor drivers, replacement of discrete logic in appliance controls, and consumer IR/RF remote controls. The S08QD family is automotive-qualified (select S-prefix parts), making the platform a natural fit for under-the-hood and chassis-adjacent designs. When designing with the MC9S08QD4MSCR, allocate sufficient Flash for boot-loader or application code growth above the 4KB baseline. Decouple VDD/VSS with 100nF ceramic capacitors placed within 5mm of the package pins, and use the BDM interface for fast in-circuit programming during development. This page synthesizes distributor pricing, drop-in alternatives, application guidance, and design notes that complement the manufacturer datasheet, helping engineers rapidly evaluate the MC9S08QD4MSCR for new designs or as a second-source replacement for legacy 8-bit MCU sockets.

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MC9S08QD4VPC - 8-bit S08 MCU, 4KB Flash, 16MHz, DIP-8 | NXP
MC9S08QD4VPC

MC9S08QD4VPC - 8-bit S08 MCU, 4KB Flash, 16MHz, DIP-8 | NXP

The NXP MC9S08QD4VPC is an 8-bit S08QD family microcontroller featuring an enhanced HCS08 CPU core, 4 KB of on-chip Flash, 256 bytes of RAM, and 8 MHz internal bus operation, housed in an 8-pin PDIP package. It is the cost-optimized lowest-end member of the S08 8-bit microcontroller architecture, targeting space-constrained and price-sensitive embedded designs. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash), volatile data memory (RAM), and a set of peripheral blocks into one package. The S08 core belongs to the Freescale/NXP HCS08 family, which uses a CISC instruction set with the legacy HC08 instruction set plus added BGND (background debug) support. The MC9S08QD4VPC operates from a 2.7 V to 5.5 V supply and integrates peripherals such as an analog-to-digital converter (ADC), timers, a multimaster I2C module, and an SCI/UART interface, making it suitable for simple control, sensing, and user-interface tasks. Key features of the MC9S08QD4VPC include 4 KB of Flash memory, 256 bytes of RAM, an 8 MHz bus frequency (16 MHz maximum internal CPU clock), a 4-channel 10-bit ADC, 6 general-purpose I/O pins, low-power stop and wait modes, and an on-chip background debug system that supports in-circuit debugging with a single breakpoint plus two more breakpoints in on-chip memory. The 8-pin PDIP (plastic dual in-line package) footprint simplifies hand-prototyping and through-hole assembly while keeping the bill of materials small. The device integrates an internal clock generator, a real-time interrupt (RTI) source, a keyboard interrupt (KBI) module on selected pins, and a programmable watchdog timer for safety-critical applications. Flash security prevents unauthorized memory reads, and the BGND instruction allows non-intrusive debug entry without disrupting the application. The architecture prioritizes deterministic behavior and low power consumption, making it well-suited to battery- or line-powered appliances. Typical applications for the MC9S08QD4VPC include low-end home appliances, motor-control signal conditioning, automotive body electronics sub-modules, lighting controls, sensor interfaces, and small consumer devices. It is commonly used where an 8-bit MCU with modest memory and peripherals is sufficient, and where an inexpensive PDIP-8 footprint accelerates prototyping or hand-rework. Designers should note that the 8-pin PDIP package exposes a limited I/O count (6 GPIO pins), which constrains simultaneous peripheral use. Pin functions must be multiplexed carefully between ADC, KBI, SCI, and timer resources. The internal clock accuracy may be insufficient for tight UART baud-rate matching in some applications, so an external crystal/oscillator option should be considered if timing precision is critical. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes not found in a single source, supporting procurement and design engineers evaluating the S08QD family for cost-sensitive 8-bit applications.

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MC9S08QD4VSC - 8-bit S08 MCU 4KB Flash SOIC-8 | NXP
MC9S08QD4VSC

MC9S08QD4VSC - 8-bit S08 MCU 4KB Flash SOIC-8 | NXP

The NXP Semiconductors MC9S08QD4VSC is an 8-bit microcontroller unit (MCU) based on the enhanced HCS08 CISC core, operating at up to 16 MHz, with 4 KB of flash memory and 256 bytes of RAM, housed in an 8-pin SOIC (SOIC 8) surface-mount package. It integrates a 4-channel 10-bit ADC and 6 general-purpose I/O pins, making it one of the smallest members of the S08 architecture. An 8-bit microcontroller is an integrated circuit that combines a processor core, memory, and peripherals on a single chip, executing embedded control tasks in appliances, sensors, and small industrial systems. Within the hierarchy of embedded processors, the S08 family descends from the HC08 architecture and occupies the low-cost, low-pin-count end of NXP's 8-bit MCU portfolio, below devices such as the MC9S08DZ and MC9S08AW series. Key features of the MC9S08QD4VSC include the 20 MHz-capable HCS08 CPU with the added BGND background-debug instruction, on-chip background debugging (BDM) that eliminates the need for an external emulator, single-breakpoint in-circuit debugging, and internal oscillator options that reduce external component count. According to the NXP MC9S08QD4 data sheet, the QD family is the lowest-end member of the S08 8-bit architecture, aimed at cost-sensitive designs. Technically, the device pairs the CISC HCS08 core with flash-based program memory, allowing field reprogramming, and provides a 10-bit successive-approximation ADC suitable for reading sensors such as thermistors and potentiometers. Its 6 GPIO pins support direct LED drive, switch inputs, and simple serial bit-banged interfaces. Typical applications include small appliance control, low-end automotive sub-systems (automotive variants are ordered with S-prefixed part numbers such as S9S08QD4), battery chargers, and simple sensor nodes where pin count and cost dominate. Design consideration: because the MC9S08QD4VSC is an End-of-Life part per the NXP product page, new designs should plan a migration path to active S08/Kinetis devices or secure last-time-buy inventory. This page synthesizes distributor data, cross-reference information, and drop-in replacement guidance not found in the manufacturer data sheet.

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MC9S08QE128CLH - 8-bit S08 MCU, 128KB Flash, 50MHz | NXP
MC9S08QE128CLH

MC9S08QE128CLH - 8-bit S08 MCU, 128KB Flash, 50MHz | NXP

The NXP MC9S08QE128CLH is an 8-bit HCS08-family microcontroller with 128 KB on-chip Flash, 8 KB RAM, a 50.33 MHz CPU, and a 64-pin LQFP package. It is part of the Flexis series and includes an integrated LCD driver, 12-bit ADC, and multiple serial interfaces. An 8-bit microcontroller (MCU) is a microprocessor integrated with memory (Flash/RAM), peripherals, and I/O on a single silicon die. The S08 core is NXP's enhanced HCS08 implementation of the HC08 instruction set, and it belongs to the broader MCU taxonomy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The Flexis series pairs pin-compatible 8-bit and 32-bit devices, enabling migration to ColdFire without PCB redesign. Key features of the MC9S08QE128CLH include 50.33 MHz bus speed (20 MHz below 2.1 V), 128 KB Flash with Flash block protection and security, 8 KB RAM, 54 general-purpose I/O pins, 22-channel 12-bit ADC, two SCI, one SPI, two I2C, and an on-chip LCD driver supporting up to 8x36 segments. Architecturally, the device integrates a background debugging system (BDCS), real-time clock, low-voltage detect, and a multi-channel timer/PWM block. Power management offers wait, stop3, and stop4 modes with fast wakeup, suitable for battery-powered applications. Typical applications include portable medical and consumer devices with segmented LCD displays, smart metering, white goods with integrated HMI, and embedded control modules that need a balance of low power, abundant I/O, and on-chip analog. A key design consideration is the supply voltage: the part runs from 2.1 V to 3.6 V at full speed and down to 1.8 V at 20 MHz. Designers must respect the minimum voltage for the chosen CPU clock and provide adequate decoupling to the analog VREF pin. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes for engineers evaluating or sourcing the MC9S08QE128CLH for new designs and legacy support.

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MC9S08QE128CLK - 8-bit S08 MCU, 128KB Flash, 50MHz | NXP
MC9S08QE128CLK

MC9S08QE128CLK - 8-bit S08 MCU, 128KB Flash, 50MHz | NXP

The NXP MC9S08QE128CLK is an 8-bit HCS08 microcontroller with 128KB (128K x 8) Flash memory, a 50MHz core clock rating, and 2.5V/3.3V operation, housed in an 80-pin LQFP (14x14 mm) package. It belongs to the S08QE family, NXP's first Flexis series pairing a pin-, peripheral- and tool-compatible 8-bit S08 device with a 32-bit ColdFire MCF51QE128 device, enabling migration between 8-bit and 32-bit platforms without board redesign. A microcontroller unit (MCU) is a single-chip computer that integrates a processor core, memory, and peripherals such as timers, serial interfaces, and ADCs into one package. MCUs sit at the center of the embedded systems hierarchy: within it, the S08QE family occupies the 8-bit microcontroller tier of NXP's broader portfolio of embedded processors and power-management-adjacent control devices. Key features include 128KB in-application-programmable Flash, a 12-bit ADC (S08ADC12V1), an internal clock source (S08ICSV3) supporting an optional external reference clock, background debugging with in-circuit breakpoint capability, and the HC08 instruction set extended with the BGND instruction for background debugging. The CLK suffix indicates a specific speed/bin and tray packaging option. Architecturally, the MC9S08QE128 is built around the HCS08 Central Processor Unit (S08 CPU), a CISC core executing the HC08 instruction set. The on-chip Internal Clock Source module allows fully internal clocking or external crystal/reference operation, and the 32KHz RTC and low-power modes support battery-operated designs; per NXP, a related family variant adds an LCD driver for portable electronics. Typical applications include industrial control and automation nodes, consumer appliance interfaces, low-power portable electronics, and legacy 8-bit system maintenance where the Flexis migration path to MCF51QE128 is valuable. The 80-pin LQFP provides generous GPIO for keypad scanning, display driving, and multi-sensor interfacing. Design consideration: because this part is End-of-Life per the NXP product page, new designs should verify remaining authorized distributor stock and plan a migration strategy using the Flexis-compatible MCF51QE128 family. This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet, with all pricing stated as of 2026-10-18.

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MC9S08QE16CFM - 8-Bit 50MHz 16KB MCU | NXP Semiconductors
MC9S08QE16CFM

MC9S08QE16CFM - 8-Bit 50MHz 16KB MCU | NXP Semiconductors

NXP Semiconductors MC9S08QE16CFM is an 8-bit S08QE microcontroller rated at 50 MHz, with 16 KB of flash memory and a 32-QFN-EP surface-mount package measuring 5 mm by 5 mm. The verified product listing also identifies integrated USB and low-power operating modes, making the device suitable for compact embedded-control designs that require a modest memory footprint and a fast peripheral-processing core. A microcontroller is a semiconductor device that combines a processor core, program memory, data memory, peripherals, and interface circuitry on one integrated circuit. The S08QE family belongs to the broader embedded-processor hierarchy: MCU, embedded controller, semiconductor, and electronic control component. In a system, this device executes firmware, samples inputs, controls outputs, and manages communications through hardware peripherals rather than relying on external discrete processing components. The verified data identifies an 8-bit architecture, 50 MHz operating frequency, and 16 KB flash organized as 16K x 8 bits. These headline values define a processor intended for compact embedded applications. The 50 MHz clock provides execution headroom for event handling and peripheral control, while 16 KB of flash limits firmware capacity and should be checked during application planning. Integrated USB expands the interface options for connected equipment, while low-power modes support designs where energy consumption between active operations is important. The MC9S08QE16CFM is housed in a 32-QFN-EP package with a 5 mm by 5 mm footprint. The exposed-pad package is intended for surface-mount assembly and provides a central thermal and electrical land pattern rather than a large through-hole body. Because the NXP product page marks the device as End of Life, procurement should begin with stock verification and a manufacturer-approved migration review rather than assuming unrestricted new production. Typical uses include compact USB-connected control nodes, industrial interface modules, appliance controllers, sensor-hub assemblies, and low-power embedded instruments. These applications benefit from the 8-bit S08 core, integrated USB, 16 KB flash, and low-power modes. Firmware size, USB class support, peripheral mapping, clock configuration, and board-level power requirements must still be confirmed against the complete manufacturer datasheet before design release. A key design consideration is lifecycle risk. Because the NXP page identifies this MPN as End of Life, engineers should verify inventory authenticity, inspect date codes, and compare any migration device by pinout, voltage, memory, clock, USB, and firmware requirements. Do not assume that a similarly named S08QE device is a drop-in replacement without complete datasheet validation. This page consolidates the verified 50 MHz, 16 KB, 8-bit, USB, package, lifecycle, distributor, and sourcing information while separating documented facts from parameters that still require manufacturer-datasheet confirmation. It is intended to support initial component selection and procurement planning, not to replace the complete electrical and pin-level documentation.

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MC9S08QE32CFM - 8-bit S08QE MCU, 32KB Flash, 50MHz | NXP
MC9S08QE32CFM

MC9S08QE32CFM - 8-bit S08QE MCU, 32KB Flash, 50MHz | NXP

The NXP (formerly Freescale) MC9S08QE32CFM is an 8-bit HCS08 microcontroller from the Flexis S08QE family, delivering 50.33 MHz CPU performance with 32 KB of on-chip Flash and 2 KB of RAM in a 32-pin QFN-EP (5x5 mm) package with exposed thermal pad. It is positioned as the 8-bit half of the pin-compatible Flexis 8-bit/32-bit duo, enabling a single PCB design to scale across S08QE and ColdFire V1 families. According to the NXP product page, the part is now flagged with an End-of-Life notice and is being discontinued, with replacement guidance available from NXP. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash), working memory (RAM), and peripherals such as timers, ADCs, communication controllers, and I/O. Within the broader semiconductor taxonomy, an MCU sits inside the embedded-processor category, which itself is a sub-class of microcontrollers and a key segment of integrated circuits. The S08 core from Freescale/NXP is a von-Neumann 8-bit CPU with a 16-bit internal index/offset register model, designed for low power and deterministic interrupt behavior in cost-sensitive embedded applications. Key features of the MC9S08QE32CFM include a 1.8 V to 3.6 V supply range, 28 general-purpose I/O pins, integrated USB 2.0 Full-Speed device controller, multiple low-power modes (Stop, Wait, Run), and on-chip peripherals such as ADC, SCI/UART, SPI, I2C, timers, and a real-time counter. The 50.33 MHz HCS08 core runs from 2.1 V and the CPU scales to 20 MHz at 1.8 V across the full -40C to +85C industrial temperature range. The exposed-pad QFN-32 package enables single-sided PCB cooling while keeping the footprint compact. Typical applications include USB peripherals (HID, CDC, custom classes), low-power sensor nodes, consumer appliances, and cost-sensitive industrial control. The integrated USB controller and small 5x5 mm footprint make the MC9S08QE32CFM especially useful for compact USB dongles, mice/keyboards, and battery-powered human-interface devices where USB connectivity and BOM cost are both critical. When designing with this part, note that the standard part is now in the NXP End-of-Life process - confirm replacement guidance before committing to a new design. Plan PCB layout around the exposed thermal pad for proper heat sinking and provide bulk capacitance close to the USB VBUS pin if USB is used in the application. This page synthesizes distributor availability (Rochester Electronics as a continuing source), the official NXP datasheet, parametric drop-in guidance, and end-of-life replacement context not present in a single manufacturer document.

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MC9S08QE32CLCR - 8-bit S08 MCU, 32KB Flash, 50MHz | NXP
MC9S08QE32CLCR

MC9S08QE32CLCR - 8-bit S08 MCU, 32KB Flash, 50MHz | NXP

The NXP Semiconductors MC9S08QE32CLCR is an 8-bit S08 CISC microcontroller delivering 50 MHz core performance with 32 KB of embedded Flash memory and 2 KB of RAM, housed in a 32-pin LQFP (7x7 mm) surface-mount package. The part integrates an LCD driver, an analog-to-digital converter, and multiple serial interfaces (SCI, SPI, I2C) on a single die, targeting cost-sensitive industrial and consumer embedded systems that need mixed-signal capability without external components. An 8-bit microcontroller (MCU) is a microprocessor integrated with program memory (Flash/ROM), data memory (RAM), and peripheral subsystems on a single silicon die. The S08 family from NXP uses a CISC (Complex Instruction Set Computer) core that runs an HC08-extended instruction set, allowing dense object code and easy migration from legacy HC08 and HCS08 designs. Within the broader taxonomy, the S08 sits below 16-bit S12/MagniV devices and 32-bit Kinetis / LPC MCUs, occupying the cost-optimized tier where GPIO count and on-chip analog integration dominate BOM savings. Key features of the MC9S08QE32CLCR include operation from a 2.5 V to 3.3 V supply (with 5 V-tolerant I/O on selected pins), an internal clock source with an external reference option, low-power stop and wait modes, an on-chip LCD driver capable of driving segment displays, a 12-bit ADC, and hardware CRC. The integrated peripherals reduce external component count and shrink PCB area in HMI, metering, and small-appliance designs. The device is built on NXP's proven S08 process and includes a built-in BDM (Background Debug Mode) interface for non-intrusive in-circuit debug and Flash programming. Hardware breakpoints, real-time bus capture, and a security mechanism that prevents unauthorized Flash readout are accessible through the BDM port, supporting both production programming and field firmware revisions. The integrated low-power oscillator and the S08 RTC block reduce BOM cost in battery-backed applications. Typical applications for the MC9S08QE32CLCR include home-appliance control boards (washing machines, microwave ovens), low-end industrial sensor transmitters, building-automation thermostats and HVAC controllers, consumer remote controls and small HMI panels with LCD displays, and battery-powered metering devices where the on-chip LCD driver eliminates an external display driver IC. When designing with the MC9S08QE32CLCR, verify the supply-rail decoupling scheme (a 100 nF plus 10 uF combination near the device), confirm the BDM pin map against your debug probe, and account for the LCD driver's segment-current budget when selecting the display. Routing the analog VREF pin separately from digital switching currents preserves ADC accuracy. This page synthesizes distributor pricing, drop-in alternatives within the S08QE family, application guidance, and practical design notes not found in the standalone NXP data sheet.

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MC9S08QE32CLD - 8-bit S08QE MCU, 32KB Flash, 50MHz, 44-LQFP | NXP
MC9S08QE32CLD

MC9S08QE32CLD - 8-bit S08QE MCU, 32KB Flash, 50MHz, 44-LQFP | NXP

The NXP MC9S08QE32CLD is an 8-bit HCS08 microcontroller with 32 KB of on-chip Flash, 2 KB of RAM, and a 50.33 MHz CPU (20 MHz bus at 1.8V), housed in a 44-pin LQFP (10x10 mm) package. It is part of the S08QE Flexis series, designed for ultra-low-power portable and battery-backed applications. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM), and a rich set of peripherals - timers, communication modules, analog blocks, and GPIOs - into one device. Within the semiconductor hierarchy, an MCU belongs to the broader category of microcontrollers, which sit under integrated circuits and are a fundamental building block of embedded systems. The 8-bit class targets cost-sensitive, power-constrained designs where deterministic behavior and easy programming outweigh raw computational throughput. Key features of the MC9S08QE32CLD include 32 KB Flash with in-application programmability, an on-chip LCD driver supporting up to 8x36 segments, a 12-bit SAR ADC, an analog comparator, multiple timers (TPM, MTIM, RTI), and a rich serial set (SCI, SPI, I2C). It supports 1.8V to 3.6V supply, offers multiple low-power stop and wait modes, and integrates an internal clock source with FLL to reduce external component count. The device operates across -40C to +85C industrial temperature range. The HCS08 core uses a von Neumann architecture with enhanced HC08 instruction set, including the BGND instruction for background debugging. The 50.33 MHz CPU at 2.1V drops to 20 MHz at 1.8V to maintain reliable operation across the full voltage range. An on-chip bandgap reference and regulator produce stable internal rails, allowing direct battery connection in many designs. Typical applications include portable medical devices, smart meters, security keypads, remote controls, home automation, and any battery-powered product that needs an LCD panel and analog signal conditioning. The integrated LCD driver eliminates an external driver IC, while the 12-bit ADC removes the need for an external converter in sensor-front-end designs. When designing with this MCU, pay close attention to supply decoupling - place one 100 nF ceramic capacitor per VDD pin and a bulk 4.7 uF near the regulator. Use the star background with the on-chip FLL set to the application bus frequency; mismatched FLL settings reduce timing accuracy and power efficiency. The LCD charge pump requires proper bypass capacitors per the manufacturer datasheet. This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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MC9S08QE4CLC - 8-Bit 20MHz 4KB MCU | NXP | 32-LQFP
MC9S08QE4CLC

MC9S08QE4CLC - 8-Bit 20MHz 4KB MCU | NXP | 32-LQFP

NXP Semiconductors MC9S08QE4CLC is an 8-bit HCS08 microcontroller with 20 MHz maximum clock frequency, 4 KB of Flash memory, and a 32-LQFP 7 x 7 mm package. The displayed distributor specification also identifies 28 I/O ports and a 1.8 V to 3.6 V supply-voltage range, making the device suitable for compact embedded-control products that require deterministic peripheral-driven operation without a high-cost external memory interface. A microcontroller is a programmable semiconductor that integrates a CPU core, memory, I/O ports, timers, serial interfaces, and other peripherals on one device. In the product hierarchy, MC9S08QE4CLC belongs to the S08QE 8-bit MCU family and uses the HCS08 architecture. Compared with a general-purpose processor, this MCU integrates the control functions needed to sense inputs, execute firmware, operate communication peripherals, and drive outputs on a single integrated circuit. The verified listing identifies 4 KB of programmable Flash, 28 I/O ports, an 8-bit CPU, and operation up to 20 MHz. Mouser describes the device specifically as an 8-bit microcontroller with 4 KB Flash and 512 bytes of RAM. Flash supports resident firmware, while the I/O count provides a practical interface budget for buttons, indicators, sensors, actuators, and bus-connected circuitry. The LQFP package also exposes enough pins for power, ground, reset, clock, programming, communications, and discrete I/O. MC9S08QE4CLC belongs to the S08QE family, identified in retrieved documentation as a pin-compatible 8-bit and 32-bit device duo within the Flexis series. Its architecture targets basic embedded-control applications rather than high-performance computing. The maximum 20 MHz frequency provides useful headroom for event handling, periodic timing, serial communication, and control loops, provided firmware observes the device's electrical and timing limits. Typical uses include compact appliance controls, small motor-control modules, digital I/O modules, sensor interfaces, and industrial or consumer sub-systems. A designer should also account for the 1.8 V to 3.6 V supply range, validate every peripheral connection, and program the device with a tool supported by the complete NXP S08QE documentation. The verified search results do not provide enough information to enumerate every peripheral or programming-tool detail without risking unsupported claims. PCB implementation should follow the package drawing and land pattern from the manufacturer datasheet, paying particular attention to supply decoupling, ground-return paths, programming access, and exposed test points. Because lifecycle information conflicts across search results, purchasing teams should confirm current status with NXP or an authorized distributor before committing a new design. This page consolidates verified distributor specifications, the official NXP product link, the S08QE datasheet, and procurement observations into a design-oriented reference. It does not infer a replacement that has not been proven to share the exact 32-LQFP pinout, peripheral mapping, voltage range, memory organization, and programming behavior.

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MC9S08QE4CPG - 8-Bit 20MHz 4KB Flash MCU | NXP DIP-16
MC9S08QE4CPG

MC9S08QE4CPG - 8-Bit 20MHz 4KB Flash MCU | NXP DIP-16

The NXP MC9S08QE4CPG is an 8-bit S08QE family microcontroller built around the HCS08 CPU core, delivering up to 20 MHz CPU operation from a 1.8 V to 3.6 V supply in a 16-pin PDIP through-hole package. It integrates 4 KB of on-chip Flash program memory, 512 B of RAM, and is targeted at cost-sensitive embedded applications that demand low power consumption and integrated analog peripherals. This device sits in NXP's Flexis-compatible S08QE series and is designed for straightforward migration to the pin-compatible 32-bit ColdFire V1 MCUs in the same family footprint. The S08QE is a family of low-power 8-bit microcontrollers whose closest hypernym is "low-power 8-bit MCU" — itself a subset of microcontrollers (MCU), embedded controllers, microprocessors, and ultimately semiconductors. An 8-bit MCU executes instructions on 8-bit-wide data paths and is widely used in cost- and power-constrained designs where 32-bit performance is unnecessary. The MCU category sits inside the broader embedded systems hierarchy: MCU -> microcontroller -> embedded processor -> semiconductor device. The S08QE in particular is engineered for ultra-low standby current (down to 1 µA in stop mode per the NXP product page), making it a member of the "low-power MCU" product class alongside competing MSP430 and PIC16F families. Key features of the MC9S08QE4CPG include the HCS08 CPU executing the S08 instruction set, 4 KB Flash with security, 512 B SRAM, multiple low-power modes including stop mode drawing approximately 1 µA, integrated analog (ADC and analog comparator), multiple timers including a periodic interrupt timer, and a robust set of serial communication peripherals. The 20 MHz CPU performance is achieved from a 50.33 MHz internal bus when operating at supply voltages above 2.1 V (per the device datasheet). The 16-pin PDIP package supports through-hole assembly, easing prototyping and breadboarding for hobbyist and industrial designs. Architecturally, the S08QE family shares background-debug mode (BDM), an internal voltage regulator that supports both 1.8 V and 3.3 V operation, and a peripheral set optimized for low-duty-cycle sensing applications. Flash memory is in-application reprogrammable, allowing field firmware updates via the standard Freescale/NXP BDM interface or via in-application programming routines. Typical applications include battery-powered sensor nodes, household appliances, simple human-interface devices, automotive body electronics, and low-cost industrial controllers. The wide operating voltage and ultra-low standby current also make the part a common choice for remote controls, security keypads, and metering peripherals. When designing with the MC9S08QE4CPG, place a 0.1 µF decoupling capacitor as close as practical to each VDD pin pair and follow NXP's recommended PCB layout for the analog supply. Ensuring proper bulk capacitance and following the datasheet's power-supply sequencing guidance eliminates most common noise and reset problems. This page synthesizes distributor pricing, drop-in compatible alternatives from the S08QE family and pin-compatible peer MCUs, and practical design notes not found in the standalone manufacturer datasheet, enabling faster component selection for low-power 8-bit designs.

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MC9S08QE4CTG - 8-Bit 20MHz MCU with 4KB Flash | NXP
MC9S08QE4CTG

MC9S08QE4CTG - 8-Bit 20MHz MCU with 4KB Flash | NXP

The NXP MC9S08QE4CTG is an 8-bit S08 microcontroller operating up to 20 MHz, with 4 KB of flash memory organized as 4K x 8 and 512 bytes of RAM, housed in a 16-pin TSSOP package. It belongs to the cost-effective S08QE family and is positioned for compact embedded-control designs requiring an integrated USB controller, flexible timer interface, and conventional microcontroller peripherals. An S08 microcontroller is an 8-bit embedded-processing device within the broader microcontroller and semiconductor hierarchy. It combines a CPU, program flash, data RAM, I/O ports, timers, serial interfaces, and analog or communication peripherals on one integrated circuit. The MC9S08QE4CTG is part of the S08 family, which targets cost-sensitive control systems, human-interface devices, simple data acquisition, and USB-connected accessories. The principal device characteristics include a 20 MHz maximum operating frequency, 4 KB of internal flash, 512 bytes of RAM, a 12-bit ADC feature, and an integrated USB controller. A flexible timer interface supports periodic timing and event-driven control functions. These resources allow the MCU to consolidate functions that might otherwise require discrete timing, interface, or conversion circuitry. The S08 architecture emphasizes compact code density and efficient control processing. Flash memory supports firmware retention and in-circuit programming, while the 512-byte RAM provides working memory for stack operations, state variables, and data buffers. The 16-pin TSSOP package reduces board area compared with larger leaded packages and is suitable for cost-sensitive, high-density consumer and industrial equipment. Typical applications include USB peripherals, keypad and menu interfaces, simple instrumentation, motor or relay control, low-speed data acquisition, and compact embedded-control modules. The 20 MHz clock rate provides sufficient response for supervisory control loops, while the integrated USB controller simplifies connection to a host computer or USB interface circuit. Designers should verify the power-supply voltage, available I/O count, oscillator requirements, ADC reference details, and exposed peripheral assignments against the manufacturer datasheet before layout. Because the NXP product page identifies this MPN as end of life, production purchasing should account for limited future availability and qualify any drop-in replacement for firmware, timing, USB, and brownout behavior. This page consolidates verified distributor pricing, lifecycle information, same-family drop-in candidates, and practical selection guidance that helps engineers evaluate replacement risk beyond a simple package and clock-frequency match.

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MC9S08QE4CWJ - 8-Bit 20MHz 4KB MCU | NXP | Embedded
MC9S08QE4CWJ

MC9S08QE4CWJ - 8-Bit 20MHz 4KB MCU | NXP | Embedded

The NXP Semiconductors MC9S08QE4CWJ is an 8-bit S08QE-series microcontroller operating up to 20 MHz, with 4KB flash memory and 512 bytes of RAM, housed in a 20-pin SOIC package. It is designed for cost-sensitive embedded systems that need a compact controller, keyboard interface, and integrated control peripherals. An 8-bit microcontroller is a complete embedded processing component containing a processor core, program memory, data memory, input/output ports, and peripherals on one integrated circuit. The MC9S08QE4CWJ belongs to the S08 family of 8-bit embedded processors, where the processor, memory, and peripherals provide a self-contained platform for control logic. Its stated features support applications where a modest instruction set and compact package are appropriate. The verified product information identifies 4KB of flash program memory, 512 bytes of RAM, 20 MHz operation, an integrated keyboard interface, and a 20-SOIC package. Flash memory provides nonvolatile program storage, while RAM supports temporary variables and stack operations. The 20 MHz maximum operating frequency gives the design a defined timing target for peripheral servicing and control-loop software, although actual performance depends on the specific firmware and peripheral configuration. MC9S08QE4CWJ is suitable for cost-sensitive embedded products such as keypad scanners, simple control panels, household appliances, industrial modules, sensor-conditioning controllers, and auxiliary embedded subsystems. Its integrated keyboard interface can reduce external hardware and firmware overhead when the device must detect regularly arranged keys. The 20-SOIC package also provides a conventional surface-mount option for compact control boards. The device is listed by NXP with an End of Life overview, so procurement should account for lifecycle constraints and possible availability through distributors. Before designing new production equipment, verify the exact package, pinout, electrical limits, programming method, and current supply status against the NXP datasheet. Existing applications should also confirm that their firmware and peripheral assignments are compatible with the selected device. For a new design, the 4KB flash and 512-byte RAM are the principal constraints. Code size, stack depth, interrupt routines, library overhead, and boot or update requirements should be budgeted before schematic capture. If the application exceeds these resources, select a higher-memory MCU rather than assuming a software-only workaround. This page combines verified distributor and manufacturer information with engineering guidance and explicitly identifies parameters that require datasheet confirmation.

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MC9S08QE64CFT - 8-Bit 50MHz MCU, 64KB Flash | NXP
MC9S08QE64CFT

MC9S08QE64CFT - 8-Bit 50MHz MCU, 64KB Flash | NXP

The NXP Semiconductors MC9S08QE64CFT is an 8-bit HCS08 microcontroller rated at 50 MHz, with 64 KB of embedded Flash memory and a 48-pin QFN exposed-pad package measuring 7 mm by 7 mm. It is designed for portable electronics and low-power embedded systems where an integrated keyboard interface and LCD driver can reduce external circuitry. An HCS08 microcontroller is a compact CISC-based embedded controller that combines a processor core, Flash program memory, RAM, peripherals, and general-purpose I/O on one semiconductor. The MC9S08QE family belongs to the Flexis MCU product line and combines low-power operation with dedicated human-interface functions. This makes it relevant to portable appliances, keypads, meters, simple control panels, and other systems that need local sensing and display support. Verified distributor data identifies a 50.33-MHz HCS08 CPU, a 1.8 V to 3.6 V supply range, 28 I/O ports, and a 48-QFN-EP package. One retrieved technical summary also states that the CPU can operate to 50.33 MHz from 2.1 V and to 20 MHz down to 1.8 V across temperature. Other verified family data identifies 4 KB RAM, a 10-channel 12-bit ADC, and 26 general-purpose I/O pins for MC9S08QE64CLC; those values are not assumed to be identical for MC9S08QE64CFT unless directly stated. The integrated keyboard interface and LCD driver distinguish this MCU from general-purpose small microcontrollers. Engineers can connect input controls and display signals directly to dedicated peripherals, reducing component count and board area. The 64 KB Flash capacity provides room for application firmware, while the 8-bit architecture can be adequate for straightforward control loops, state machines, and human-interface tasks. MC9S08QE64CFT is identified as active by one technical listing, while the official NXP search result also contains an End of Life overview. Because these signals conflict, engineers should confirm current lifecycle, ordering, and replacement status directly with NXP before committing a production design. For implementation, verify the voltage-dependent maximum bus speed, exposed-pad connection, decoupling, programming interface, and unused-pin requirements against the manufacturer datasheet. The QFN footprint is compact but requires careful land-pattern and reflow control. A hardware migration should compare pin multiplexing, interrupt mapping, timer resources, memory size, voltage limits, and software compatibility rather than treating a matching package as sufficient proof of interchangeability.

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MC9S08QE64CLC - 8-Bit 64KB Flash 50MHz MCU | NXP
MC9S08QE64CLC

MC9S08QE64CLC - 8-Bit 64KB Flash 50MHz MCU | NXP

The NXP Semiconductors MC9S08QE64CLC is an 8-bit S08QE-series microcontroller with 64 KB of flash memory, a maximum stated frequency of 50 MHz, and a 32-pin LQFP package measuring 7 x 7 mm. The verified distributor listings identify an enhanced HCS08 CPU, CISC architecture, 26 general-purpose I/O pins, and a 10-channel 12-bit A/D converter. One NXP search result states operation up to 20 MHz for cost-sensitive automotive and consumer applications, while other distributor data identify a 50 MHz maximum frequency; application timing must therefore be checked against the complete manufacturer documentation. A microcontroller is a programmable system-on-chip that executes firmware, coordinates digital inputs and outputs, and integrates memory and peripherals into one compact device. The S08 MCU belongs to the broader 8-bit microcontroller hierarchy, where an enhanced HCS08 CISC core provides a straightforward architecture for cost-sensitive control systems. Its integrated flash stores application code, while RAM supports working data and the stack. Verified features include 64 KB of internal flash, 4 KB of internal RAM, 26 general-purpose I/O pins, a 10-channel 12-bit A/D converter, and an integrated LCD driver. These resources support mixed digital and analog products without requiring a separate ADC in designs that operate within the device's documented electrical limits. The S08 family description also identifies flexible clock options, although exact clock-tree limits were not supplied in the verified data. The MC9S08QE64CLC is positioned for automotive and consumer applications where compact integration, 8-bit control, and LCD support are useful. Potential uses include instrument-cluster sub-systems, small motor controllers, appliance interfaces, meter electronics, and low-cost embedded control panels. The 32-LQFP package exposes more I/O than a small leadless package and remains easy to assemble and inspect at prototype and repair stages. Designers should resolve the 20 MHz versus 50 MHz listing discrepancy before setting the final clock configuration. They should also confirm the exact pin functions, memory map, electrical limits, temperature grade, and package drawing from the official datasheet. Because the NXP product page labels the device End of Life, new production should be conditioned on lifecycle, availability, and last-time-buy review rather than treated as an unrestricted active part. This data page combines verified distributor specifications, lifecycle information, sourcing context, and engineering cautions. It distinguishes confirmed values from unavailable electrical details and does not infer missing pin assignments, timing margins, temperature limits, or certification claims. That distinction is especially important for a discontinued MCU, where hardware reuse must be validated at both software and schematic levels.

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MC9S08QE64CLH - 8-bit S08QE MCU, 64KB Flash, 50MHz | NXP
MC9S08QE64CLH

MC9S08QE64CLH - 8-bit S08QE MCU, 64KB Flash, 50MHz | NXP

The NXP MC9S08QE64CLH is a 64-pin LQFP-packaged 8-bit microcontroller from NXP's S08QE (Flexis) family, built around the HCS08 CPU core with BGND instruction and capable of running at up to 50 MHz. It integrates 64 KB of on-chip Flash, 4 KB of RAM, a 22-channel 12-bit ADC, an analog comparator, and up to 54 general-purpose I/O pins. Operating from a 1.8 V to 3.6 V supply with an industrial -40 C to +85 C temperature range, it is positioned as a cost-sensitive upgrade path that pairs an 8-bit core with select 32-bit-compatible peripherals in the same pinout. What is an 8-bit MCU? An 8-bit microcontroller (MCU) is a single-chip computer whose central processing unit manipulates data in 8-bit chunks. Within the broader semiconductor hierarchy, MCUs belong to the embedded processing class, sitting between simple discrete logic and 32-bit microprocessors. The HCS08 family evolved from the original HC08 instruction set and adds the BGND instruction for cleaner background-debug entry, along with enhanced index addressing and faster interrupt response, while preserving object-code compatibility with legacy HC08 code. The S08QE 'Flexis' sub-family is NXP's bridge between 8-bit S08 and 32-bit ColdFire V1, sharing pinout, peripherals, and a development toolchain between the two architectures. Key features of the MC9S08QE64CLH include: an integrated internal clock generator that eliminates an external crystal in many designs; a 12-bit successive-approximation ADC with up to 22 input channels; multiple serial interfaces (typically SCI/UART, SPI, and I2C); a 6-channel flex timer/PWM module; low-power run, wait, and stop modes with wake-up from interrupts or the real-time counter; and an integrated LCD driver that complements the GPIO complement for HMI-style designs. The S08QE architecture uses a 2-stage pipelined HCS08 core with a 25 MHz internal bus and instruction-efficient CISC encoding, giving effective throughput that competes with mid-range 8-bit parts. The 64 KB Flash supports in-application programming through a flash controller that handles erase and program sequencing autonomously, freeing the CPU during updates. An on-chip voltage regulator powers the core logic from a single external 1.8 V to 3.6 V rail, simplifying PCB power design. Typical applications include consumer white goods and appliance control panels, low-end industrial sensor nodes, battery-powered metering peripherals, USB-CDC/HID human-interface devices, and small-form-factor display controllers. Designers favor the S08QE family because the QFP-64 footprint also accepts the pin-compatible 32-bit ColdFire V1 counterpart (the Flexis concept), enabling a one-BOM layout that scales from 8-bit cost targets to 32-bit performance when firmware requirements grow. Designers should note that the LQFP-64 'CLH' suffix indicates a 10x10 mm industrial-temperature package, while the 'CLD' suffix is the smaller LQFP-48 variant - both share S08 silicon but differ in pin count and analog channel count. Always confirm flash security and TFS (tiny flash security) configuration in volume production, as the device supports a back-door key for field firmware updates that must be protected against unauthorized access. This page synthesizes distributor pricing for the 64-LQFP (10x10) package, identifies same-package drop-in alternatives across the S08QE family, and provides practical design notes for ADC sampling, low-power mode entry, and PCB layout that go beyond what the NXP reference manual contains.

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MC9S08QE8CFM - 8-Bit 20MHz MCU, 8KB Flash | NXP Semiconductors
MC9S08QE8CFM

MC9S08QE8CFM - 8-Bit 20MHz MCU, 8KB Flash | NXP Semiconductors

NXP Semiconductors MC9S08QE8CFM is an 8-bit S08 microcontroller with a 20 MHz maximum clock, 8 KB flash memory, 512 bytes of RAM, and a 32-pin QFN package measuring 4 mm by 4 mm. The device includes IIC, SCI, SPI, and a 10-bit ADC, making it suitable for compact embedded control, automotive, and industrial systems. A microcontroller is a programmable semiconductor that integrates a CPU core, memory, peripheral interfaces, and input/output ports on one integrated circuit. MC9S08QE8CFM belongs to the HCS08/S08 family, combining an 8-bit embedded CPU with serial communications and analog measurement. Its QFN surface-mount package supports compact PCB layouts, while the exposed-pad construction provides a practical thermal path when the device operates continuously. Key features include 8 KB of flash for program storage, 512 bytes of RAM, a 10-bit ADC, and communication interfaces including IIC, SCI, and SPI. A 1.8 V to 3.6 V operating range allows operation from low-voltage 3.3 V systems and compatible mixed-voltage industrial equipment. The 20 MHz clock specification supports responsive control tasks without requiring a larger external processor. The S08 architecture is intended for embedded applications where deterministic peripheral access, compact code, and low system complexity are more important than high-bandwidth processing. Serial interfaces allow the MCU to connect sensors, transceivers, displays, and external nonvolatile memory. The ADC supports cost-sensitive analog sensing, while GPIO resources allow direct control of switches, indicators, actuators, and digital communication lines. Typical uses include automotive body-control modules, industrial sensors, building controls, appliance controllers, battery-powered instruments, and compact communication equipment. In each case, the MCU consolidates control logic, analog measurement, and external communication into a small surface-mount footprint. Its 8 KB flash capacity is best matched to focused applications with compact firmware rather than extensive graphical interfaces or large protocol stacks. Design the PCB with a short ground return and a solid thermal path beneath the exposed pad. Confirm that the selected programming tools, clock configuration, interface levels, and firmware memory requirements match the device. Because NXP marks this exact orderable part as end of life, long-life programs should verify availability and planned migration before committing to new production designs. This page organizes the manufacturer lifecycle information, package characteristics, interface capabilities, application fit, and engineering trade-offs. It also distinguishes exact drop-in alternatives from merely similar 8-bit microcontrollers, helping engineers avoid assumptions based only on memory size, clock rate, or pin count.

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MC9S08QE8CLC - 8-bit S08 MCU 8KB Flash 20MHz 32-LQFP | NXP
MC9S08QE8CLC

MC9S08QE8CLC - 8-bit S08 MCU 8KB Flash 20MHz 32-LQFP | NXP

The NXP Semiconductors MC9S08QE8CLC is an 8-bit S08 (HCS08) microcontroller with 8KB flash memory, 512B RAM, and a maximum CPU frequency of 20MHz, housed in a 32-pin LQFP (7x7 mm) surface-mount package. An 8-bit microcontroller is a single-chip computer whose CPU processes data in 8-bit words, occupying the entry level of the microcontroller hierarchy: MCU -> embedded processor -> system-on-chip. The S08 core is NXP (formerly Freescale Semiconductor) enhanced successor to the 68HC08 architecture, using a CISC instruction set with an internal bus clock up to 10MHz (20MHz CPU rate). MCUs of this class integrate program flash, RAM, clocks, analog peripherals and I/O on one die, eliminating external memory chips in cost-sensitive embedded designs. Key features of the MC9S08QE8CLC include 8KB (8K x 8) of flash program memory with in-circuit reprogramming, a 10-channel 12-bit ADC that resolves inputs to 0.8mV steps on a 3.3V reference, 26 general-purpose I/O pins, and an integrated analog comparator. The internal clock source option removes the need for an external crystal in non-timing-critical applications, and the device belongs to the Flexis QE series, the first family in Freescale's Flexis series pairing pin-compatible 8-bit and 32-bit devices. Technically, the S08QE family combines the enhanced HCS08 CPU with low-power wait and stop modes, background debug via a single-wire interface, and a rich analog front end (12-bit ADC plus comparator) unusual for 8-bit parts. The 32-LQFP 7x7mm body offers 0.8mm pin pitch for hand-solderable prototyping. Typical applications include automotive body modules and sensor nodes, industrial control panels, appliance user interfaces, battery chargers, and low-power monitoring systems where the 12-bit ADC and comparator replace external analog components. Design consideration: the part is End-of-Life per the NXP product page, so new designs should verify remaining distributor stock or plan migration to a recommended successor; operating temperature is -40C to +85C, adequate for industrial but not full automotive profiles. This page synthesizes distributor pricing (DigiKey, Mouser, LCSC, Octopart), drop-in alternatives, lifecycle status, and practical design notes not found in the manufacturer datasheet.

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