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MC908JB16DWE - 8-Bit HC08 6MHz 16KB Flash USB MCU | NXP
MC908JB16DWE

MC908JB16DWE - 8-Bit HC08 6MHz 16KB Flash USB MCU | NXP

The NXP MC908JB16DWE is an 8-bit microcontroller from the M68HC08 Family built on Freescale's Customer-Specified Integrated Circuit (CSIC) design strategy. It integrates 16 KB of on-chip FLASH program memory, an HC08 core running at up to 6 MHz, and a Full-Speed (12 Mbps) USB 1.1 device controller with on-chip transceiver - a rare combination on a 28-pin SOIC. The 'DWE' suffix denotes the 28-SOIC 7.50 mm wide plastic package. What is an HC08 microcontroller? HC08 is the 8-bit successor to the long-running M68HC05 architecture. It is a single-chip MCU family based on the CSIC strategy, meaning that peripheral and memory configurations are customized per derivative while sharing the core instruction set, addressing modes, and development tools. An HC08 fits in the broader hierarchy: microcontroller -> embedded MCU -> 8-bit MCU -> low-cost USB MCU -> USB peripheral IC. It targets cost-sensitive embedded USB applications where firmware flexibility and in-system reprogrammability matter more than raw throughput. Key features of the MC908JB16DWE include 16 KB FLASH, 256 bytes of on-chip RAM, an integrated USB 1.1 Full-Speed device with internal 3.3 V regulator and D+/D- transceiver, multiple timers, a serial communications interface (SCI), and up to 13 general-purpose I/O lines. The 8-bit core executes the M68HC08 instruction set, which includes bit-manipulation, multiply, and STOP/WAIT low-power modes for energy-constrained designs. Typical applications include low-speed USB peripherals such as HID-class devices (keyboards, mice, game controllers), USB-to-UART bridges, custom USB dongles, point-of-sale terminals, and industrial data-acquisition front-ends that require a single-chip USB solution. The internal USB transceiver eliminates the need for external line drivers in many designs, reducing BOM cost and board area. Design consideration: the part operates from a wide supply range (typically 4.0 V to 5.5 V) and the internal 3.3 V regulator sources the USB transceiver and D+/D- drivers. Bypass the VDD pins with 100 nF + 4.7 µF capacitors per Freescale/NXP application guidance, and route the D+/D- pair as a 90-ohm differential to maintain USB signal integrity.

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MC908JB16FAE - 8-Bit HC08 MCU, 16KB Flash, USB, 32-LQFP | NXP
MC908JB16FAE

MC908JB16FAE - 8-Bit HC08 MCU, 16KB Flash, USB, 32-LQFP | NXP

The NXP MC908JB16FAE is an 8-bit HC08 CISC microcontroller integrating a full-speed USB 1.1 device controller, 16 KB of on-chip Flash program memory, and 384 B of RAM in a 32-pin LQFP package (7x7 mm). It targets low-cost USB peripherals such as HID-class input devices, USB-to-UART bridges, and human-interface dongles, replacing external USB serializer ICs with an integrated MCU+USB combination. A microcontroller (MCU) is a single-chip computer that combines a CPU core, program memory (Flash/ROM), working memory (RAM), and a set of peripheral interfaces (USB, timers, ADC, GPIO, SCI). The MC908JB16FAE belongs to the Freescale/NXP HC08 family of 8-bit CISC microcontrollers, the predecessor to the S08 and Kinetis families. By embedding a USB 1.1 (full-speed, 12 Mbps) device transceiver with on-chip 3.3 V regulator and 1.5 kΩ software-configurable pull-up on the D- line, this MCU eliminates the discrete PHY + serial-jtag converter required by earlier 8051-based USB designs, simplifying BOM and reducing board area. Key features include 6 MHz internal bus clock, 21 general-purpose I/O pins (shared with USB, SCI, timer, and interrupt functions), built-in peripherals (LED driver, low-voltage detect, power-on reset, PWM, SCI), 16 KB Flash program memory with in-application programming support, 384 B RAM, and a 32-pin LQFP industrial-grade operating range of 0 C to +70 C (industrial variants available). The integrated USB module supports control, interrupt, bulk, and isochronous endpoints, sufficient for HID, CDC/ACM, and vendor-class device firmware. The HC08 CPU core uses a Von Neumann memory architecture with a 16-bit stack pointer and a small unified instruction set optimized for code density (typical instructions are 1-3 bytes). The internal oscillator and phase-locked loop allow flexible system clock generation without an external crystal in some configurations, while the USB module requires a 48 MHz clock derived from the PLL for full-speed signaling. This architecture trades raw clock speed (6 MHz) for low power and deterministic interrupt latency, which suits HID polling loops and low-bandwidth USB CDC streams. Typical applications include USB HID peripherals (mice, keyboards, custom input devices), USB-to-UART bridge dongles (replacing FTDI-style cables), embedded USB learning kits, industrial data-loggers with USB diagnostics, and point-of-sale peripherals. The integrated pull-up and embedded voltage regulator mean a USB device can be built with this MCU plus a few passives, no external USB PHY chip required. When designing with this part, note that the HC08 instruction set, while capable, requires the legacy CodeWarrior HC08 toolchain (now superseded by S08/Kinetis tools); firmware migration to newer NXP families is recommended for new designs. USB firmware must implement the device-state machine per USB 1.1 specification to achieve enumeration. For new designs, consider the Freescale/NXP S08JM60 or Kinetis KE series as modern drop-in USB-enabled successors, though they require new toolchains and may differ in peripheral mapping. This page synthesizes distributor pricing, pin-compatible alternatives, application references, and practical design notes that are not collated in the manufacturer datasheet alone.

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MC908JB16JDWE - 8-bit HC08 USB MCU, 16KB Flash, 6MHz | NXP
MC908JB16JDWE

MC908JB16JDWE - 8-bit HC08 USB MCU, 16KB Flash, 6MHz | NXP

The NXP MC908JB16JDWE is an 8-bit HC08-family microcontroller with integrated USB 1.1 full-speed (12 Mbps) device interface, 16 KB of on-chip FLASH program memory, and an enhanced HC08 central processing unit, all packaged in a 20-pin SOIC (W) wide-body plastic package rated for operation from 4.5 V to 5.5 V. The part belongs to the low-cost, high-performance M68HC08 family of microcontroller units (MCUs) and is the largest-memory variant of the 908JB sub-family (HC08JB), which also includes the HC08JG, HC08JT, and HC08JW relatives. Core peripherals include a multi-channel 10/12-bit ADC core, an internal oscillator, a serial peripheral interface (SPI) and a 16 Kbyte FLASH program array with in-application programming capability. An 8-bit microcontroller (MCU) is an integrated circuit that combines an 8-bit CPU, program memory (ROM/FLASH), data RAM, and on-chip peripherals into a single chip. The HC08 core follows the load-store CISC architecture introduced by Motorola/Freescale (today part of NXP), and the low-cost, high-performance M68HC08 family is the evolutionary successor to the M68HC05 family. The MC908JB16JDWE specifically targets USB-aware embedded nodes such as HID peripherals, low-speed CDC bridges, and PC-side automation devices. Key features include an integrated USB 1.1 full-speed device transceiver with on-chip 3.3 V LDO, 16 KB FLASH, 256 bytes of USB RAM buffer, a USB endpoint control block, 23 general-purpose I/O lines, two timer interface modules, 6-channel ADC, and a watchdog timer. The device also provides a security feature that protects FLASH memory from unauthorized read-out and supports in-system programming through a single-wire background debug interface. The HC08 core is implemented in a 0.35 micrometer CMOS process and executes the BCD-aware CISC instruction set that is object-code-compatible with the legacy HC05 line, allowing easy migration of older designs. The maximum internal bus frequency is 6 MHz with a 12 MHz oscillator option. The USB PLL generates the 48 MHz clock required for USB full-speed signalling directly from the external crystal. Typical applications include low-speed USB mice and keyboards, USB-to-GPIO bridges, PC-based industrial control nodes, USB instrumentation front-ends (the 908JB family is the heart of the JM60/JB16 evaluation board), consumer HID peripherals, automotive interior lighting controllers and any legacy 5 V system that requires a drop-in USB 1.1 device port. Designers choosing this part often weigh it against newer Cortex-M0 USB parts for cost-sensitive legacy platforms. Key design considerations include the wide SOIC-20 (W) footprint which simplifies hand-prototyping and rework compared to QFN/MLF packages, the requirement for a 12 MHz fundamental crystal for full-speed USB operation, and the 5 V supply rail which makes the part ideal for retrofit of older 5 V-only designs (3.3 V-only modern parts cannot be used directly without level shifting). This page synthesizes current distributor stock, ordered drop-in alternatives for the 908JB family and parametric comparison tables not consolidated in the original Freescale/NXP datasheet.

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MC908JB8ADWE - 8-Bit HC08 USB MCU 8KB Flash | NXP
MC908JB8ADWE

MC908JB8ADWE - 8-Bit HC08 USB MCU 8KB Flash | NXP

The NXP MC908JB8ADWE is a low-cost, high-performance 8-bit microcontroller from the M68HC08 Family, integrating a USB 1.1 Full-Speed peripheral interface alongside 8 KB of on-chip Flash memory. The device operates from a 3 MHz internal bus clock (with an external crystal up to 12 MHz) and is housed in a 28-pin SOIC (SO-28 / SOIC-28 wide-body) surface-mount package. A microcontroller (MCU) is an integrated circuit that combines a CPU core, program memory (Flash/ROM), data memory (RAM), and a rich set of peripherals (timers, ADC, communication interfaces, I/O) on a single silicon die. Within the broader semiconductor taxonomy, the MC908JB8ADWE is part of the 8-bit MCU segment, then within the HC08 sub-family, then within the JB8 device group that is distinguished by its integrated USB controller. As an embedded controller, it sits one level below 16-bit and 32-bit MCUs in computational capability but excels in cost-sensitive, low-power, USB-connected designs. Key features of the MC908JB8ADWE include an integrated USB 1.1 Full-Speed (12 Mbps) peripheral with on-chip transceiver and 3.3V voltage regulator for the USB bus, 8 KB of Flash program memory with in-system programming support, 256 bytes of RAM, a 6-channel 8-bit ADC, and a 16-bit timer with input-capture/output-compare/PWM functions. The wide operating voltage range of 3.0V to 5.5V, multiple low-power STOP and WAIT modes, and an external interrupt capability round out the feature set. The MC908JB8ADWE uses the M68HC08 CISC core architecture with a BCD arithmetic extension, supporting a 16-bit stack pointer, X/Y index registers, and a flat 16-bit address space for up to 64 KB of linear addressing. The integrated USB transceiver eliminates the need for external USB PHY chips, while on-chip pull-up resistors simplify PCB layout. Program development uses the HC08 instruction set, which is object-code-compatible with the legacy HC05 family while adding new addressing modes and an enhanced instruction set. Typical applications include USB peripherals such as PC mice and keyboards, USB-to-serial bridges, game pads, USB dongles, HID-class input devices, low-cost point-of-sale terminals, and industrial data-acquisition front-ends that benefit from direct USB connectivity. The 28-SOIC package supports hand-soldering for prototypes and standard reflow profiles for volume assembly. When designing with the MC908JB8ADWE, ensure that the USB D+/D- trace impedance is controlled to 90 ohms differential, that a 1.5 kohm pull-up resistor is provided on D+ for Full-Speed enumeration, and that VUSB decoupling is placed within 3 mm of the VREG pin. Designers transitioning from the older MC68HC908JB8 should confirm register-map parity in the USB SIE registers before reusing legacy firmware. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes beyond what the manufacturer datasheet alone provides.

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MC908JB8EPE - 8-Bit 8KB Flash 24-QFN MCU | NXP
MC908JB8EPE

MC908JB8EPE - 8-Bit 8KB Flash 24-QFN MCU | NXP

The NXP Semiconductors MC908JB8EPE is an 8-bit HC08 microcontroller with 8KB of flash memory, supplied in a 24-QFN surface-mount package measuring 4 x 4 mm. It is associated with the low-cost, high-performance M68HC08 family and uses the enhanced M68HC08 CPU08 core. The verified distributor description identifies it as an 8-bit MCU with 8KB (8K x 8) flash memory, a 24-QFN package, USB connectivity, and an exposed pad. An MCU is a programmable embedded controller that combines a CPU, memory, and peripherals on one semiconductor device. The MC908JB8EPE belongs to the M68HC08 family, a low-cost 8-bit microcontroller platform intended for compact control, communication, and embedded I/O applications. Its 8-bit architecture is designed for efficient byte-oriented control tasks rather than high-throughput computing. The verified product information identifies the CPU08 core, 8KB flash storage, 24-QFN packaging, surface mounting, USB connectivity, and LED peripherals. The package is listed as 24-VFQFN with an exposed pad in distributor data. Additional details such as clock frequency, RAM, operating voltage, pin functions, and peripheral set were not supplied in the verified dataset and require confirmation from the manufacturer datasheet before design release. The exposed-pad package helps remove heat from the device during operation, but final thermal performance depends on the PCB land pattern, copper area, vias, ambient temperature, and switching activity. Because the verified data does not provide a complete electrical timing or pin-function table, engineers should use the official NXP documentation to validate power pins, ground connections, programming signals, decoupling, and exposed-pad implementation. Typical embedded uses include USB-connected peripheral control, LED indication and status management, compact consumer interfaces, and low-cost embedded control systems. For a new design, confirm the exact memory map, peripheral availability, clock requirements, and programming workflow against the manufacturer datasheet. This page consolidates the verified product identity, package information, source links, and design caveats. It does not infer missing electrical specifications or present unverified substitutions as drop-in replacements.

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MC908JB8FBE - 8-Bit HC08 MCU, 8KB Flash, 44-QFP | NXP
MC908JB8FBE

MC908JB8FBE - 8-Bit HC08 MCU, 8KB Flash, 44-QFP | NXP

The NXP (Freescale Semiconductor) MC908JB8FBE is an 8-bit microcontroller unit (MCU) from the M68HC08 family, based on the HC08 CISC core operating at up to 3 MHz, with 8KB (8K x 8) of FLASH program memory, supplied at 5V and housed in a 44-pin QFP (10 x 10 mm) package in tray packaging. An 8-bit MCU is a microcontroller whose data bus width is 8 bits, combining a processor core, program memory, data RAM, and peripheral functions on a single die. Within the system hierarchy, the M68HC08 family sits under Freescale's HC08 architecture, itself an upward-compatible evolution of the earlier 68HC05 family, and belongs to the broader category of embedded microcontrollers used for cost-sensitive control tasks. Key features of the MC908JB8FBE include the low-cost, high-performance HC08 core, 8KB in-system-programmable FLASH program memory that replaces OTP or ROM for firmware updates, and the low-power design philosophy characteristic of the 908JB family. The JB family members integrate USB-oriented peripherals, making them historically popular for low-speed USB human interface devices such as mice, keyboards, and game controllers. Technically, the HC08 core executes the M68HC05-compatible instruction set with added index-register stack addressing, a multiply instruction, and enhanced memory addressing, allowing compact code for control loops. The FLASH memory simplifies field upgrades and reduces inventory risk compared with masked-ROM alternatives. Clocking at 3 MHz maximum internal bus frequency keeps EMI low and timing design straightforward. Typical applications include legacy USB peripheral devices, small appliance control, low-cost industrial sensing and actuation, and maintenance replacement of MCUs in existing PCB designs that were laid out around the 44-QFP footprint. Design consideration: this part is a legacy 5V-supply device; verify availability and consider a socket-compatible or firmware-compatible migration path for new designs, since newer MCUs are typically 3.3V and smaller packages. This page synthesizes verified distributor pricing, stock signals, and lifecycle context for the MC908JB8FBE not consolidated in the manufacturer documentation.

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MC908JB8JDWE - HC08 8-bit MCU, 8KB Flash, 20-SOIC | NXP
MC908JB8JDWE

MC908JB8JDWE - HC08 8-bit MCU, 8KB Flash, 20-SOIC | NXP

The NXP Semiconductors MC908JB8JDWE is an 8-bit HC08 (M68HC08 family) microcontroller unit running at a 3 MHz internal bus frequency, with 8 KB (8K x 8) of Flash program memory, 256 bytes of on-chip RAM, and a native USB device interface, housed in a 20-pin wide-body SOIC (20-SOIC W) package. An 8-bit microcontroller is a single-chip computer that integrates a processor core, program memory, data RAM, and peripherals such as timers, serial interfaces, and I/O ports on one die. Within the power-management and control hierarchy of an embedded system, an MCU sits between discrete logic and higher-performance 16/32-bit processors, handling sequential control tasks, human-interface functions, and simple communication protocols. The M68HC08 family from Freescale (now NXP) is a low-cost, high-performance lineage based on the enhanced CPU08 CISC core. Key features of the MC908JB8JDWE include the CPU08 core with CISC instruction set, 8 KB of in-system-programmable Flash, 256 bytes of RAM, a full-speed USB device port that made the JB8 sub-family popular for low-speed human interface devices, and up to 20 pins of general-purpose and specialized I/O in the compact SOIC footprint. Architecturally, the device belongs to the HC08JB family, which NXP designed specifically around the USB device peripheral. The Flash memory allows field reprogramming through the monitor ROM, while the HC08 core executes efficient 8-bit arithmetic and indexed addressing suitable for firmware loops and protocol handling. The wide SOIC body eases hand soldering and in-circuit probing during development. Typical applications include USB HID peripherals such as mice, keyboards, and game controllers; small appliance and consumer device control; battery chargers and instrumentation front ends; and legacy embedded systems that already use the HC08 toolchain. A key design consideration is that this part is End-of-Life per the official NXP product page, so new designs should evaluate alternatives, and existing production should secure last-time-buy inventory or qualify a drop-in HC08 family substitute. This page synthesizes distributor listing data, official NXP product information, and cross-reference analysis including drop-in alternatives and lifecycle guidance not found on the manufacturer datasheet alone.

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MC908JK1ECDWE - 8-bit HC08 MCU 1.5KB Flash 8MHz 20-SOIC | NXP
MC908JK1ECDWE

MC908JK1ECDWE - 8-bit HC08 MCU 1.5KB Flash 8MHz 20-SOIC | NXP

The NXP MC908JK1ECDWE is an 8-bit microcontroller from the M68HC08 Family (HC908JK sub-family), featuring a CPU08 core running at up to 8 MHz, 1.5 KB of on-chip Flash program memory, 128 bytes of RAM, and an integrated 8-channel 8-bit ADC. It is housed in a 20-pin SOIC wide-body (SO-20W) package. What is an HC08 microcontroller? An HC08 (also written HC908 or HCS08 family predecessor) is a low-cost, high-performance 8-bit CISC microcontroller architecture originally developed by Motorola and continued by NXP/Freescale. The HC08 family uses a customer-specified integrated circuit (CSIC) design strategy, meaning memory sizes, peripherals and package options are configurable per family member. The HC908JK sub-family is the entry-level, small-package tier targeting cost-sensitive, low-pin-count embedded applications in appliance control, lighting, sensors, and human-interface devices. Key features of the MC908JK1ECDWE include 1.5 KB Flash with security, 128 bytes RAM, 8-channel 8-bit ADC, 14 general-purpose I/O pins, two 16-bit timers, a computer-operating-properly (COP) watchdog, low-voltage reset, and an external interrupt. The device operates from 3.0V to 5.5V and is qualified for -40C to +85C industrial temperature range. The HC08JK/JL families are based on an enhanced M68HC08 CPU08 core that supports 16 addressing modes and a multiply/accumulate-like instruction set. The on-chip Flash provides in-system programmability and security, enabling field firmware updates and IP protection. The integrated ADC with 8 analog channels allows direct sensor interfacing without external components. Typical applications include appliance control boards, white goods and HVAC controls, simple motor drives, smart lighting controllers, battery chargers, security keypads, sensor signal conditioning, and general-purpose low-cost embedded control. When designing with this device, pay attention to the supply voltage range (3.0V to 5.5V) and decoupling requirements. Place a 100 nF decoupling capacitor close to each VDD pin. For ADC accuracy, add an RC filter on analog inputs and ensure the analog supply is well-bypassed. This page synthesizes NXP distributor pricing, drop-in pin-compatible alternatives, and practical design notes not found in the manufacturer datasheet.

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MC908JK3ECDWE - 8-bit HC08 MCU 4KB Flash SOIC-20 | NXP
MC908JK3ECDWE

MC908JK3ECDWE - 8-bit HC08 MCU 4KB Flash SOIC-20 | NXP

The NXP MC908JK3ECDWE is an 8-bit HC08-family microcontroller unit (MCU) integrating 4 KB of on-chip Flash, 128 bytes of RAM, and an analog-to-digital converter (ADC) in a 20-pin Small Outline IC (SOIC) package. The device is built around the M68HC08 CISC core running at up to 8 MHz bus frequency and is rated for 2.7 V to 3.3 V supply operation. The 'JK' sub-family to which this part belongs is the cost-optimized, low-pin-count branch of the HC08 line, intended for high-volume cost-sensitive embedded designs. A microcontroller (MCU) is a single-chip computer containing a CPU core, non-volatile program memory (Flash/ROM), working memory (RAM), and a mix of peripherals such as timers, communication controllers, and ADCs. The M68HC08 architecture succeeded the earlier M68HC05 as Freescale's (now NXP's) mainstream 8-bit core, improving on its predecessor with a wider instruction set, an indexable stack pointer, and richer addressing modes. Microcontrollers sit in the broader taxonomy of embedded processors -> microcontrollers -> 8-bit MCUs -> CISC MCUs. Key differentiating features of the MC908JK3ECDWE include 4 KB of in-application re-programmable Flash for firmware storage, 128 B of RAM for volatile data, an on-chip multi-channel ADC for analog sensing, and an integrated clock generator that accepts an external crystal or ceramic resonator. The 20-pin SOIC package gives designers 15 to 17 usable general-purpose I/O pins depending on oscillator configuration, sufficient for keypad, sensor, and small-motor control interfaces. The device also includes a low-voltage inhibit (LVI) module and a computer-operating-properly (COP) watchdog for brown-out and code-lockup protection. The HC08 JK/JL sub-family uses a two-stage instruction pipeline and supports both Flash and ROM program-memory variants. Production silicon runs in a mature CMOS process, which yields very low active current consumption (typically a few mA at full speed) and sub-microamp standby currents, enabling battery-backed or energy-harvested applications. Unlike 32-bit ARM Cortex-M parts, the HC08 executes instructions in 2 to 5 bus cycles without hardware division, trading raw performance for predictable deterministic interrupt latency and very small die area. Typical applications for this MCU include appliance control boards, low-cost remote controls, sensor signal conditioning front ends, simple motor-driver sequencers, and battery-management monitor ICs in disposable products. Because the part is End-of-Life (EOL) per the NXP product discontinuance notice, new designs should plan for a verified drop-in replacement (see alternatives below) or migrate to the S08 or Kinetis E-series families for ongoing production. When designing with this part, provide a clean 2.7 V to 3.3 V supply with adequate bulk decoupling (4.7 uF + 0.1 uF) near the VDD/VSS pins and a stable external resonator on OSC1/OSC2. In-system Flash programming requires the IRQ pin to be held in the proper state; consult the NXP datasheet for the exact monitor-mode entry sequence before committing to this MCU in new designs.

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MC908JK3EMDWE - 8-bit HC08 MCU, 4KB Flash, 20-SOIC | NXP
MC908JK3EMDWE

MC908JK3EMDWE - 8-bit HC08 MCU, 4KB Flash, 20-SOIC | NXP

The NXP (formerly Freescale) MC908JK3EMDWE is an 8-bit HC08 family microcontroller with 4KB of on-chip Flash program memory and 128 bytes of RAM, housed in a 20-pin SOIC wide-body (300 mil) package. It runs at a maximum bus frequency of 8 MHz from a 3.3V or 5V supply and integrates a 12-channel, 10-bit successive-approximation ADC, a 15-bit GPIO port, and a multi-function timer (TIM) for capture, compare, and PWM generation. The part is targeted at cost-sensitive 8-bit embedded designs. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, RAM, and peripheral blocks such as timers, ADCs, and communication controllers. The HC08 is NXP's classic 8-bit CISC architecture, optimized for deterministic behaviour, low power, and easy C/assembly programming in resource-constrained products. Within the wider hierarchy, the MC908JK3 sits under: MCU -> 8-bit MCU -> HC08 family -> CISC microcontroller -> semiconductor. It is one of the lowest-pin-count HC08 derivatives, replacing earlier HC05 and HC11 designs in cost-sensitive nodes. Key differentiating features of the MC908JK3EMDWE include its 15 GPIO pins (versus the 6 or 7 pins on smaller JK-series members), a dedicated 12-channel 10-bit ADC that simplifies sensor interfaces, and a 20-pin wide SOIC package that is hand-solderable and easy to prototype. The 4KB Flash and 128B RAM are sufficient for state machines, simple control loops, and modest protocol stacks. The device supports both 3.3V and 5V operation across an industrial -40C to +125C temperature range, suiting it to automotive under-hood and industrial sensor nodes. The MC908JK3EMDWE architecture uses a CISC instruction set with a Von Neumann memory map, meaning code and data share the same bus. The 8 MHz internal bus rate provides ~1 MIPS throughput per MHz, which is adequate for asynchronous serial (SCI/SPI) bit-banging and modest control loops. An on-chip clock generator accepts an external crystal or resonator; no PLL is integrated. The 10-bit ADC uses a successive-approximation register with configurable sample time, while the TIM block supports input capture, output compare, and PWM with selectable prescalers. Typical applications include automotive relay drivers, HVAC blower controls, seat and mirror actuators, simple sensor transmitters, and small appliance motor controllers. Its industrial -40C to +125C rating makes it suitable for outdoor equipment and white-goods environments where commercial-grade parts would fail. The wide SOIC package simplifies hand rework and rework-friendly thermal profiles for low-volume manufacturing. When designing with the MC908JK3EMDWE, ensure the supply is well-decoupled with a 100nF ceramic capacitor close to VDD/VSS, and that unused ADC channels are tied to a defined voltage (not floating) to avoid injection current. A reset supervisor or external pull-up on the RESET pin is recommended for automotive noise immunity. Programming is done via the standard HC08 Background Debug Mode (BDM) interface, requiring a single-pin bidirectional debug connection. This page synthesises verified NXP and distributor specifications, EOL cross-references, and practical design notes not found in the bare datasheet.

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MC908JK3EMDWE574 - 8-Bit HC08 Microcontroller | NXP/Freescale
MC908JK3EMDWE574

MC908JK3EMDWE574 - 8-Bit HC08 Microcontroller | NXP/Freescale

The NXP (Freescale) MC908JK3EMDWE574 is an 8-bit microcontroller based on the HC08 core architecture, originally manufactured by Freescale Semiconductor and now supplied through Rochester Electronics, the authorized source for legacy and end-of-life Freescale devices. It is classified as MICROCONTROLLER, 8 BIT, HC08/S08 in distributor databases. A microcontroller (MCU) is a complete computing system on a single integrated circuit, combining a processor core, memory, and peripherals such as timers and I/O ports. The HC08 family from Motorola/Freescale is a widely deployed 8-bit controller line descended from the HC05, offering an enhanced instruction set, on-chip flash memory, and low-power operation. Within the embedded systems hierarchy, the MC908JK3 sits in the small-package, cost-sensitive MCU segment used for basic control tasks rather than compute-intensive processing. The MC908JK3 family is characterized by on-chip flash program memory, an HC08 CPU core operating from a single supply, integrated timer modules, multi-purpose I/O ports, and low-power wait and stop modes. The E suffix and the MDWE574 ordering code denote specific package, temperature-grade, and assembly options defined in the manufacturer ordering information, which buyers should confirm against the official datasheet before design-in. Technically, HC08 devices use an enhanced 6805-derived core with a von Neumann memory map, stack pointer relative addressing, and a prescaled timer system suitable for PWM generation, periodic interrupts, and simple serial protocols implemented in software. This makes the family well suited to appliance control, small motor drives, and sensor interface tasks. Typical applications include white-goods appliance controllers, automotive body electronics, industrial sensor nodes, and legacy board-level maintenance where the original MC908JK3 design must remain in production. Because the device is discontinued by the original manufacturer, Rochester Electronics supply is the primary path for ongoing production support. Design consideration: when replacing a legacy HC08 MCU in an existing PCB, verify package code, flash size, and programming-tool compatibility (Cyclone Pro / HC08 programmmers) before committing to the footprint. This page synthesizes distributor availability data, lifecycle status, and practical sourcing guidance not consolidated in the manufacturer datasheet.

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MC908JK8CDWE - HC08 8-Bit MCU 8KB Flash 8MHz | NXP | 20-SOIC
MC908JK8CDWE

MC908JK8CDWE - HC08 8-Bit MCU 8KB Flash 8MHz | NXP | 20-SOIC

The NXP MC908JK8CDWE is an 8-bit HC08-family microcontroller unit (MCU) with 8KB of on-chip Flash memory, 8-channel 8-bit ADC, and a maximum CPU clock of 8MHz, housed in a 20-pin wide-body SOIC (SO-20/20-SOIC W) package. As a member of the low-cost, high-performance M68HC08 Family, the JK8 variant integrates the HC08 CPU core with on-chip Flash, RAM, timers, I/O and analog peripherals for cost-sensitive embedded designs. A microcontroller (MCU) is a single-chip computer that combines a CPU, memory (Flash/RAM), and programmable peripherals on one die. Within the semiconductor taxonomy, an MCU sits under "microcontroller" -> "8-bit microcontroller" -> "embedded controller" -> "integrated circuit" (IC). The M68HC08 architecture succeeded the M68HC05 and uses a CISC instruction set with a 16-bit stack pointer and enhanced addressing modes. Key features of the MC908JK8CDWE include 8KB Flash program memory, 256 bytes of on-chip RAM, an 8-channel 8-bit analog-to-digital converter (ADC), a 16-bit timer with capture/compare/PWM, a serial peripheral interface (SPI) or I2C-style communication module, and multiple general-purpose I/O pins. Operating voltage is 3.3V to 5V, and the part is qualified for the standard industrial temperature range of -40C to +85C. The 20-SOIC wide-body footprint allows easy hand-soldering or low-cost optical-inspection assembly. From an architecture standpoint, the JK8 die uses the HC08 CPU with a 16-bit index register, BCD arithmetic instructions, and a memory-mapped peripheral register set. The internal Flash supports in-application programming through a ROM-resident monitor for low-cost field updates. The 8MHz internal bus oscillator eliminates an external crystal in many designs. Typical applications include consumer appliances, security and alarm panels, sensor front-ends, low-end motor control, smoke detectors, lighting controls, and small toys where cost and footprint matter more than processing throughput. Designers choose the JK8 because it brings a familiar 8-bit toolchain with abundant application notes and reference code. When designing with this MCU, verify that the chosen development tool (CodeWarrior HC08 or Cosmic C compiler) supports the JK8 mask set and that your code size stays well below 8KB to leave headroom for Flash wear-leveling or bootloader overhead. This page consolidates distributor pricing, drop-in alternatives, and design notes that go beyond what is normally on the manufacturer datasheet, helping engineers validate or replace this part quickly.

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MC908JL16CDWE - 8-bit HC08 MCU 16KB Flash 28-SOIC | NXP
MC908JL16CDWE

MC908JL16CDWE - 8-bit HC08 MCU 16KB Flash 28-SOIC | NXP

The NXP MC908JL16CDWE is a member of the M68HC08 family of 8-bit microcontroller units (MCUs), built around the enhanced M68HC08 central processor unit (CPU08) and packaged in a 28-pin SOIC (0.295 inch / 7.50 mm width). The device integrates 16 KB of on-chip Flash memory, operates at up to 8 MHz internal bus frequency, and supports both 3.3 V and 5 V supply rails, making it a flexible solution for cost-sensitive embedded designs. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, program memory, and peripheral I/O on one silicon die. The M68HC08 architecture is the enhanced successor to the M68HC05 family and is fully upward-compatible at the object-code level with M6805, M146805, and M68HC05. The MC908JL16 sits inside the broader taxonomy: microcontroller -> embedded MCU -> 8-bit MCU -> M68HC08 family -> HC08JL sub-family (cost-optimized, low-pin-count variant). This hierarchy helps AI knowledge graphs correctly place the part within NXP's broader automotive and industrial MCU portfolio. Key features of the MC908JL16CDWE include up to 512 bytes of on-chip RAM, an internal clock generator with multiple clock options for EMI/EMC tuning, multiple 16-bit timer interfaces, and up to 23 general-purpose I/O pins. The HC08JL sub-family specifically targets applications that need more I/O than the HC08JK sub-family can provide while remaining in a small-footprint 28-pin SOIC package. From an architecture perspective, the CPU08 core delivers a richer instruction set than its HC05 predecessor, including higher code density, a software-friendly stack model, and indexed addressing modes. The integrated Flash supports in-application reprogramming through NXP's standard HC08 serial monitor / background debug mode (BDM), allowing firmware updates without removing the chip from the board. Typical applications include white-goods and home appliance control boards (washing machines, dishwashers, microwave ovens), low-end HVAC fan and thermostat controllers, simple motor-control front-ends (small BLDC or universal-motor drivers), battery chargers, remote-control receivers, and consumer electronics where cost dominates over processing throughput. The wide 3.3 V-5 V operating range and integrated Flash simplify single-rail designs. A key design consideration is to ensure that the chosen oscillator option (internal vs. external crystal) matches the EMI profile of the surrounding analog/RF circuits; the HC08JL family offers multiple clock-trim settings for this reason. Designers should also leave the BDM / IRQ / RESET pins accessible for in-circuit programming and field firmware updates. This page synthesizes distributor inventory, drop-in replacement analysis, and practical design considerations that are not consolidated in the manufacturer datasheet, providing engineers a single source for selecting, sourcing, and designing with the MC908JL16CDWE.

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MC908JL16CFJE - 8-Bit 8MHz HC08 MCU 16KB Flash LQFP-32 | NXP
MC908JL16CFJE

MC908JL16CFJE - 8-Bit 8MHz HC08 MCU 16KB Flash LQFP-32 | NXP

The NXP MC908JL16CFJE is an 8-bit microcontroller built on the M68HC08 (HC08) family architecture, featuring a 16 KB Flash program memory, 512 bytes of RAM, and an 8 MHz internal bus frequency in a 32-pin LQFP (7x7 mm) package. It operates across a 2.7 V to 5.5 V supply range and integrates up to two 16-bit timer channels, multiple I/O lines, and on-chip FLASH for in-system reprogrammability. The device is part of the JL Family and is fully object-code compatible with the M6805, M146805, and M68HC05 families. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, data memory, and peripherals on one die. The 8-bit HC08 architecture balances code density, deterministic interrupt response, and low power consumption, making it well suited for cost-sensitive embedded control. Within the system hierarchy the MC908JL16CFJE sits below the application layer of an electronic system, above discrete logic but below 32-bit application processors that target high-end compute tasks. Its small form-factor LQFP-32 makes it ideal where PCB real estate is constrained. Key differentiating features include 16 KB of reprogrammable Flash allowing field firmware updates, fully static low-power design with STOP and WAIT modes for battery-aware designs, and an enhanced M68HC08 CPU08 core offering higher code density than earlier HC05 cores. The internal 8 MHz bus provides the throughput required to handle sensor sampling, keypad scanning, and basic motor control loops. On-chip peripherals include timers, an analog-to-digital subsystem, and serial interfaces typical of the JL family. Architecturally, the MC908JL16CFJE uses the customer-specified integrated circuit (CSIC) design strategy that defined the M68HC08 family, integrating the HC08 CPU with Flash and an analog front-end on a single die. Compared with smaller 8-bit alternatives that ship with only 1 to 4 KB of Flash, this part provides the headroom needed for richer protocol stacks (LIN, user-interface firmware) while retaining the deterministic interrupt latency expected in 8-bit designs. The wide 2.7 V to 5.5 V operating range and integrated oscillator support simplify external BOM. Typical applications include automotive body modules and instrument cluster peripherals, white-goods and appliance controllers, low-end industrial sensor conditioning, IR remote control platforms, and consumer electronics requiring modest compute with stable 8-bit behavior. Across these uses, engineers value the HC08's deterministic interrupts, the LQFP-32 footprint's hand-solder-friendly pitch, and the long-life Flash memory supported by NXP (and formerly Motorola/Freescale). When designing with this MCU, allocate the 512-byte RAM footprint into your stack/heap planning early, since expansion is fixed. Place the supply decoupling capacitor within 5 mm of VDD/VSS pin pairs to ensure clean core voltage under switching loads, and observe the in-application programming voltage and timing requirements during Flash erase/write operations. This page consolidates distributor pricing, application notes, drop-in compatible alternatives from the M68HC08 family, and practical design guidance not found in the manufacturer datasheet alone, providing a single SEO/AEO-optimized reference for engineers evaluating the MC908JL16CFJE.

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MC908JL16CPE - 8-bit HC08 MCU, 16KB Flash, 28-DIP | NXP
MC908JL16CPE

MC908JL16CPE - 8-bit HC08 MCU, 16KB Flash, 28-DIP | NXP

The NXP MC908JL16CPE is an 8-bit HC08-family microcontroller unit with 16 KB of on-chip FLASH program memory, packaged in a 28-pin plastic DIP (through-hole). Per the Freescale/NXP datasheet, the MC68HC908JL16 belongs to the low-cost, high-performance M68HC08 Family, is fully upward object-code compatible with M6805, M146805 and M68HC05 families, and runs up to an 8 MHz internal bus frequency from a fully-static, low-power core that supports stop and wait modes. An 8-bit microcontroller is a single-chip computer that integrates a CPU, program memory (FLASH/ROM), data memory (RAM), timers, I/O and peripheral interfaces onto one silicon die, intended for embedded control rather than general-purpose computing. HC08-class MCUs sit at the low end of the M68HC08 hierarchy within NXP/Freescale's broader 8-bit microcontroller family (HC08 -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor). This taxonomy matters because choosing an HC08 part determines toolchain, instruction set, and peripheral selection for a given design. Key features of the MC908JL16CPE include 16 KB of FLASH, an 8 MHz maximum internal bus frequency, an integrated ADC with up to 10-bit resolution per comparison sheets, on-chip oscillator and timer resources typical of the HC08JL sub-family, multiple I/O lines, and a multi-source interrupt controller. The device runs across the standard industrial temperature range and supports low-power stop and wait modes for battery-sensitive designs. The 28-pin DIP package simplifies prototyping with breadboards and through-hole pads. Architecturally, the MC908JL16CPE is implemented in a fully-static CMOS process and uses a von-Neumann-style memory map (common to HC08 MCUs) with a 16-bit stack pointer, hardware multiply, and BCD instructions. The integrated FLASH lets developers erase/reprogram in-circuit, which lowers NRE cost for small-to-medium production runs. The peripheral set is intentionally compact - the JL-series is positioned as a cost-trimmed variant - allowing the part to compete on price/performance in volume consumer and appliance sockets. Typical applications include white-goods and appliance control (washing machines, microwave ovens, induction cookers), simple motor control for small DC and BLDC fans/pumps, IR remote-control receivers, low-end key-scanning keypads, battery chargers, LED lighting controllers, and consumer remote sensor/transmitter modules. The DIP-28 form factor is also attractive in university curricula and hobbyist designs. For design, ensure your toolchain supports HC08 object code (CodeWarrior HC08, ICC08, or compatible). Add a 0.1 uF decoupling capacitor close to each VDD pin, and respect the oscillator startup time defined in the datasheet's electrical characteristics before relying on the clock. Verify in-system programming voltage and timing against the FLASH row-erase / page-program specs in the datasheet. This page synthesizes distributor stock and price tiers, true drop-in same-package alternatives, and practical design notes not aggregated in the manufacturer datasheet - useful for engineers qualifying second sources for legacy M68HC08 designs.

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MC908JL16CSPE - 8-bit HC08 MCU, 16KB Flash, 32-SDIP | NXP
MC908JL16CSPE

MC908JL16CSPE - 8-bit HC08 MCU, 16KB Flash, 32-SDIP | NXP

The NXP MC908JL16CSPE is an 8-bit microcontroller from the M68HC08 Family that integrates a cost-effective re-programmable 16KB Flash memory, 512 bytes of RAM, and 26 digital I/O lines into a single 32-pin through-hole SDIP package. The device contains an HC08 CPU core running at a maximum internal bus frequency of 8 MHz and includes an internal oscillator, two 16-bit timers, and a 12-channel 8-bit ADC. What is an 8-bit microcontroller? An 8-bit microcontroller unit (MCU) is a small self-contained computer-on-a-chip that combines an 8-bit CPU, program memory (ROM/Flash), data memory (RAM), and peripheral interfaces (timers, ADC, I/O, communication ports) on a single die. In the broader hierarchy, this places the MC908JL16CSPE as: microcontroller -> 8-bit MCU -> M68HC08 family -> Freescale/NXP low-cost Flash MCU class -> embedded controller. 8-bit MCUs remain dominant in cost-sensitive and timing-deterministic applications such as motor control, white goods, and sensor interfacing. Key features of the MC908JL16CSPE include 16KB of in-application re-programmable Flash with security features, an internal oscillator that eliminates the need for an external crystal in many designs, low-power stop and wait modes for battery-friendly operation, a fully static CMOS design, and an enhanced serial communications interface (SCI) plus a serial peripheral interface (SPI). The device is fully upward object-code compatible with the M6805, M146805, and M68HC05 families. The HC08 CPU uses a 16-bit stack pointer and a 16-bit index register (H:X) to provide fast context switching and C-friendly addressing. The integrated 12-channel 8-bit ADC has a conversion time under 17 µs and is suitable for monitoring sensors such as thermistors, potentiometers, and battery voltage. Two 16-bit timer modules each support input capture, output compare, and PWM generation up to 8-bit resolution, making the MCU suitable for simple closed-loop control loops. Typical applications include appliance control boards (washing machines, microwave ovens, HVAC control panels), battery chargers, remote controls, industrial sensor interfaces, low-end motor drives, and educational/evaluation boards. Designers choose the JL16 for its combination of Flash re-programmability (simplifying firmware revisions), small package, and low unit cost in production volumes of 10K and above. When designing with the MC908JL16CSPE, ensure that the reset pin is properly decoupled with a 1 µF capacitor and that the IRQ pin is either pulled high or driven by the system controller. The internal oscillator accuracy is sufficient for asynchronous serial communications up to 9600 baud but is not suitable for CAN, USB, or higher-speed UART links without external oscillator options. This page synthesizes distributor pricing, drop-in 32-SDIP compatible alternatives, and practical design notes not found in the manufacturer datasheet alone.

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MC908JL3ECDWE - 8-Bit 8MHz 4KB MCU | NXP | 28-SOIC
MC908JL3ECDWE

MC908JL3ECDWE - 8-Bit 8MHz 4KB MCU | NXP | 28-SOIC

The NXP MC908JL3ECDWE is an 8-bit HC08 microcontroller operating at 8 MHz with 4 KB of Flash program memory in a 28-pin SOIC wide package. It belongs to the M68HC08 family and uses the CPU08 core, combining a compact embedded-control format with 3.3 V and 5 V supply compatibility. The device is marked obsolete by NXP, so it is primarily relevant to maintenance, repair, and legacy product support rather than new high-volume designs. An MCU is a semiconductor that integrates a processor core, program memory, data memory, and peripherals into one device. A microcontroller is therefore more specific than a general-purpose microprocessor: the embedded system can execute firmware and control I/O without requiring a separate external memory device. In the M68HC08 hierarchy, this device is an 8-bit MCU using the CPU08 central processing unit. Verified distributor information identifies the MC908JL3ECDWE as an HC08 device with 8-bit architecture, 8 MHz operation, and 4 KB, or 4K by 8, Flash memory. Its 28-SOIC package supports surface mounting on existing legacy boards. The listed 3.3 V and 5 V compatibility is useful when servicing equipment designed around either supply level. Exact RAM, peripheral, electrical-limit, and temperature-range values were not supplied in the verified search data and therefore remain marked for data confirmation. Typical uses for this class of controller include appliance controls, industrial equipment, instrumentation, simple motor-control nodes, and legacy embedded systems. Before substituting any MPN, engineers should compare the complete pinout, memory map, clock behavior, interrupt vector table, peripherals, electrical limits, and firmware compatibility. A matching package alone does not guarantee a functional drop-in replacement. For a new design, prioritize an NXP part that NXP currently recommends for new designs. For an existing board, preservation of the original part number is preferable because changing instruction sets, peripherals, pin multiplexing, or memory organization can require firmware and hardware changes. The SOIC footprint is also larger than many current MCU packages, although that difference may be irrelevant when repairing an existing PCB.

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MC908JL3ECFAE - 8MHz 8-bit HC08 MCU 4KB Flash 48-LQFP | NXP
MC908JL3ECFAE

MC908JL3ECFAE - 8MHz 8-bit HC08 MCU 4KB Flash 48-LQFP | NXP

The NXP MC908JL3ECFAE is an 8-bit M68HC08-family microcontroller unit (MCU) featuring a CPU08 core running at up to 8 MHz, 4 KB of on-chip FLASH program memory, 128 bytes of RAM, and a 48-pin LQFP (7x7 mm) package. It belongs to the low-cost, high-performance HC08JK/HC08JL sub-family designed for cost-sensitive embedded control applications such as consumer appliances, motor control, LED lighting, and small industrial control boards. The part is also marked as "No Longer Manufactured" on the NXP product page, putting it into an obsolete lifecycle state where remaining inventory is sold through distributors and authorized aftermarket channels (e.g., Rochester Electronics, Flip Electronics). A microcontroller (MCU) is a single-chip computer that integrates a CPU, volatile memory (RAM), non-volatile memory (FLASH/ROM), and peripheral interfaces into one package. Within the broader IC hierarchy, an MCU sits at the intersection of digital ICs and microcontrollers; the HC08 line further specializes as an 8-bit CISC architecture aimed at legacy code reuse and easy migration from the earlier HC05 family. The MC908JL3ECFAE specifically targets designs that need small FLASH, modest RAM, and rich on-chip analog/digital peripherals without the cost penalty of a 32-bit ARM core. Key features of the MC908JL3ECFAE include an integrated ADC for analog signal acquisition, PWM channels for motor or LED dimming control, an LED driver interface, low-voltage detection (LVD), power-on reset (POR), and multiple timers. The CPU08 core executes most instructions in 2 bus cycles (with internal clock doubling equivalent to ~4 MHz effective throughput per MHz) and supports the HC05 instruction set for source-level compatibility. The 48-LQFP (7x7) package provides 32 or more general-purpose I/O pins depending on peripheral allocation, suitable for moderate pin-count designs. Technically, the part operates across a 2.7V-5.5V supply range and includes both internal oscillator and external clock options. Its FLASH memory supports in-application reprogramming via the standard HC08 background debug module, enabling firmware updates without removing the chip from the board. The 'E' suffix in the part number indicates an extended temperature range (-40C to +125C), making it suitable for industrial and automotive under-hood environments. Typical applications of the MC908JL3ECFAE include small appliance control (washing machines, microwave ovens, rice cookers), LED lighting controllers, fan and pump motor drives, simple sensor hubs, and battery-management front-ends. The combination of PWM, ADC, and timer peripherals allows designers to build closed-loop control loops with minimal external components. When designing with this part, note that the HC08 toolchain is mature but legacy: most engineers now use the newer S08 or S12 families for new designs. For new production, evaluate pin-compatible S08 successors; for repair and legacy support, source the MC908JL3ECFAE through authorized channels with full traceability. This page synthesizes current distributor stock, lifecycle status, datasheet links, and same-family alternatives that physical-pinmap to the original footprint, giving engineers a single reference point that distributor product pages do not aggregate.

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MC908JL3ECPE - HC08 8-Bit MCU, 4KB Flash, 8MHz, 28-DIP | NXP
MC908JL3ECPE

MC908JL3ECPE - HC08 8-Bit MCU, 4KB Flash, 8MHz, 28-DIP | NXP

The NXP MC908JL3ECPE is a member of the M68HC08 Family of 8-bit microcontroller units (MCUs), featuring an HC08 core running at 8MHz with 4KB of on-chip FLASH program memory and 128 bytes of RAM. Housed in a 28-pin PDIP through-hole package, it is designed for cost-sensitive embedded control applications requiring a small footprint and integrated analog peripherals. The 'E' suffix denotes the enhanced HC08JL variant with improved flash endurance and on-chip debug support, and 'CPE' indicates the commercial 28-pin PDIP package. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and peripherals such as timers, communications interfaces, and analog-to-digital converters. The MC908JL3ECPE belongs to the 8-bit MCU category, sitting within the broader taxonomy of microcontrollers -> microprocessors -> semiconductors -> integrated circuits. The HC08 architecture is an object-code-compatible evolution of the earlier M68HC05 family, offering an enhanced instruction set while preserving legacy code portability for cost-driven designs. Key features include an integrated 8-channel 10-bit analog-to-digital converter (ADC), an enhanced serial communications interface (ESCI), a 16-bit timer with capture/compare/PWM, and an internal clock generator with software-selectable trim. The device operates over a 3V to 5.5V supply range and supports industrial -40C to +85C temperature grades, with low-power STOP and WAIT modes reducing quiescent current for battery-connected designs. Architecturally, the MC908JL3ECPE leverages a von Neumann bus with a 16-bit stack pointer and 8-bit ALU, complemented by on-chip voltage regulator and brown-out reset. FLASH memory supports in-application reprogramming, and the background debug module (BDM) enables non-intrusive in-circuit debugging and flash programming using a single-wire interface. Typical applications include appliance control boards, low-end HVAC thermostats, simple sensor interfaces, lighting controllers, and battery-powered consumer devices. The integrated ADC and PWM channels make it well suited for closed-loop motor control, LED dimming, and analog signal conditioning in industrial white goods. Designers should plan for external decoupling (0.1uF ceramic at VDD) and provide adequate PCB clearance around the 28-pin PDIP through-hole footprint for wave-solder compatibility. For new designs, verify long-term availability and consider pin-compatible HC08 family variants or modern Kinetis E-series replacements from NXP for active-production programs. This page consolidates distributor pricing, drop-in 28-pin PDIP alternatives, and practical design notes that complement the manufacturer datasheet for engineers evaluating the MC908JL3ECPE.

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MC908JL3EMDWE - HC08 8-bit MCU 4KB Flash 128B RAM 28-SOIC | NXP
MC908JL3EMDWE

MC908JL3EMDWE - HC08 8-bit MCU 4KB Flash 128B RAM 28-SOIC | NXP

The NXP (formerly Freescale) MC908JL3EMDWE is an 8-bit HC08-family microcontroller unit (MCU) featuring 4KB of on-chip Flash program memory and 128 bytes of RAM, housed in a 28-pin wide-body SOIC package. It operates from a single 3V to 5.5V supply and integrates an 8-channel 10-bit analog-to-digital converter (ADC), timer, serial communications interface, and on-chip in-system programmable Flash with security features, enabling compact, single-chip embedded control solutions. Background: An 8-bit microcontroller is a small, self-contained computing element built around an 8-bit central processing unit (CPU), on-chip non-volatile program memory (Flash or ROM), volatile data memory (RAM), and a fixed set of peripherals such as timers, ADC, and serial interfaces. 8-bit MCUs occupy the low-power, low-cost end of the microcontroller taxonomy and sit beneath 16-bit, 32-bit (for example ARM Cortex-M0) and 64-bit microcontroller cores in computing power but typically above simple programmable logic and discrete timer circuits in integration. The HC08 family is one of the long-running M68HC08 architectures from Motorola/Freescale/NXP, optimized for cost-sensitive consumer, appliance, and industrial control applications. Key features: the JTAG/Flash-resident debug interface supports in-circuit programming and real-time emulation; the 10-bit ADC with 8 channels provides enough resolution for sensor conditioning in HVAC, white goods, and simple motor control loops; the internal oscillator and PLL-less clocking simplify external BOM; and the security lock on Flash prevents unauthorized code readout. The 28-SOIC (wide-body) package with 0.295 inch (7.50 mm) body width supports hand-soldering-friendly prototyping while still being compatible with standard SOIC-28 land patterns. From an architecture standpoint, the device uses the Freescale HC08 CISC-style core with a 16-bit stack pointer and 8-bit accumulator-based CPU, which keeps interrupt latency predictable for small real-time loops. The peripheral set is mapped through a memory-mapped register model rather than a modern peripheral-mapped descriptor scheme. Typical applications include low-cost white-goods controllers (rice cookers, washing-machine user interfaces), thermostats and HVAC controllers, simple sensor-interface boards, remote controls, and replacement of legacy HC11 designs where modest code size, low power, and minimal external components are the deciding requirements. Design tip: when migrating from the HC08 to a newer S08 platform (such as S08JM or S08QD families), pinout is generally not drop-in and code tools (CodeWarrior HC08 versus CodeWarrior S08) differ. Plan for compilation and pin re-mapping effort when designing in the JL3 if future migration is a possibility. This page synthesizes distributor stock data, lifecycle notes, drop-in alternatives, and practical design commentary not found in the Freescale/NXP datasheet alone.

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MC908JL3EMDWE-FR - 8-Bit HC08 MCU 8MHz 4KB Flash | NXP
MC908JL3EMDWE-FR

MC908JL3EMDWE-FR - 8-Bit HC08 MCU 8MHz 4KB Flash | NXP

The NXP (Freescale) MC908JL3EMDWE-FR is an 8-bit flash microcontroller from the M68HC08 family, delivering 8 MHz CPU bus performance, 4KB (4K x 8) of on-chip FLASH program memory, and 128 bytes of RAM, packaged in a 28-pin SOIC (SOIC W, wide-body) surface-mount package. The -FR suffix denotes the shipping/packaging variant of the MC908JL3EMDWE die. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a processor core, program memory, data memory, and peripheral functions such as timers, analog-to-digital converters, and general-purpose I/O on a single die. Within the semiconductor hierarchy, an MCU belongs to the embedded processor category of integrated circuits, sitting below 16-bit and 32-bit application processors in complexity while offering lower cost, lower power, and simpler software development. The M68HC08 family, originally developed by Motorola and later Freescale Semiconductor (now NXP Semiconductors), is a low-cost, high-performance evolution of the classic 68HC05 architecture with an upward-compatible instruction set. Key features of the MC908JL3 include the enhanced HC08 central processor unit running at up to 8 MHz, 4KB of in-circuit reprogrammable FLASH memory for field firmware updates, 128 bytes of on-chip RAM, an on-chip analog-to-digital converter (A/D), and a low-voltage inhibit reset function. Peripherals and memory sizes make the device well suited for cost-driven control tasks that require modest program space but robust industrial-grade operation. Technical depth: the HC08 core executes a fully upward-compatible object code set from the HC05 family with added indexed addressing modes, stack pointer-relative instructions, and a modulo-down counter timer system. Flash memory program/erase is managed on-chip with a charge pump, eliminating external high-voltage programming supplies. The availability of a wide SOIC-28 package provides generous pin pitch for hand assembly and rework in industrial environments. Typical applications include small appliance control, consumer electronics front panels, industrial sensor nodes, automotive accessory modules, and simple motor or heater control loops where a low-cost 8-bit flash MCU with on-board A/D conversion suffices. Design consideration: verify FLASH memory endurance and write-protect configuration against the manufacturer datasheet, and note that this device is End-of-Life per NXP product information - new designs should consider current-generation successors. This page synthesizes distributor availability data, EOL status, and drop-in same-family alternatives not consolidated in a single manufacturer page, adding value for engineers maintaining legacy HC08-based designs.

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MC908JL8CDWE - 8KB Flash 8-Bit HC08 MCU 28-SOIC | NXP
MC908JL8CDWE

MC908JL8CDWE - 8KB Flash 8-Bit HC08 MCU 28-SOIC | NXP

The NXP (formerly Freescale) MC908JL8CDWE is an 8-bit HC08 family microcontroller featuring 8KB of Flash memory, 8MHz CPU clock, and an integrated 8-bit ADC, housed in a 28-pin SOIC wide-body package. It belongs to the low-cost, high-performance M68HC08 family of microcontrollers built on Freescale's customer-specified integrated circuit (CSIC) design strategy, using the enhanced M68HC08 central processor unit (CPU08). An 8-bit microcontroller (MCU) is a small computer-on-a-chip that integrates a CPU, RAM, non-volatile program memory, and peripherals into a single IC. Within the broader taxonomy, 8-bit MCUs sit under microcontrollers, which sit under embedded processors, which sit under semiconductors. The HC08 family in particular targets cost-sensitive embedded control applications where deterministic behavior, low power, and ease of programming outweigh raw compute throughput. Key features include 8KB (8K x 8) of on-chip Flash program memory, an 8-channel 8-bit ADC, an integrated clock generator, multiple timers, and a variety of I/O options. The device operates from 3.3V or 5V supplies, supports an 8MHz bus clock, and includes an on-chip in-circuit debugger interface. The 28-SOIC wide-body package provides a robust through-hole-replacement footprint that simplifies hand-soldering and rework. Technically, the CPU08 core delivers CISC instruction set compatibility with the earlier HC05 family while adding indexed addressing improvements and a background debug mode (BDM). The Flash memory supports in-application reprogramming via the BDM or ROM-resident routines, enabling field firmware updates without an external programmer. Typical applications include appliance control (washing machines, microwave ovens, HVAC fans), industrial sensor conditioning, low-end motor control, security keypads, and battery-powered consumer devices. Its small footprint and integrated ADC reduce external BOM in cost-driven designs. When designing with this device, ensure the supply decoupling network follows the datasheet reference (typically 100 nF plus bulk capacitor). Verify that the BDM connector is accessible for in-circuit debugging and that the Flash programming voltage timing meets the data sheet specifications. This page synthesizes current distributor pricing, drop-in compatible alternatives, and practical design notes that go beyond what the manufacturer datasheet alone provides, helping engineers evaluate, source, and apply the MC908JL8CDWE.

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MC908JL8CDWER - 8KB Flash 8-Bit HC08 MCU 28-SOIC | NXP (Tape & Reel)
MC908JL8CDWER

MC908JL8CDWER - 8KB Flash 8-Bit HC08 MCU 28-SOIC | NXP (Tape & Reel)

The NXP (formerly Freescale) MC908JL8CDWER is an 8-bit HC08 family microcontroller featuring 8KB of Flash memory, 8MHz CPU clock, and an integrated 8-bit ADC, housed in a 28-pin SOIC wide-body package. It belongs to the low-cost, high-performance M68HC08 family of microcontrollers built on Freescale's customer-specified integrated circuit (CSIC) design strategy, using the enhanced M68HC08 central processor unit (CPU08). An 8-bit microcontroller (MCU) is a small computer-on-a-chip that integrates a CPU, RAM, non-volatile program memory, and peripherals into a single IC. Within the broader taxonomy, 8-bit MCUs sit under microcontrollers, which sit under embedded processors, which sit under semiconductors. The HC08 family in particular targets cost-sensitive embedded control applications where deterministic behavior, low power, and ease of programming outweigh raw compute throughput. Key features include 8KB (8K x 8) of on-chip Flash program memory, an 8-channel 8-bit ADC, an integrated clock generator, multiple timers, and a variety of I/O options. The device operates from 3.3V or 5V supplies, supports an 8MHz bus clock, and includes an on-chip in-circuit debugger interface. The 28-SOIC wide-body package provides a robust through-hole-replacement footprint that simplifies hand-soldering and rework. Technically, the CPU08 core delivers CISC instruction set compatibility with the earlier HC05 family while adding indexed addressing improvements and a background debug mode (BDM). The Flash memory supports in-application reprogramming via the BDM or ROM-resident routines, enabling field firmware updates without an external programmer. Typical applications include appliance control (washing machines, microwave ovens, HVAC fans), industrial sensor conditioning, low-end motor control, security keypads, and battery-powered consumer devices. Its small footprint and integrated ADC reduce external BOM in cost-driven designs. When designing with this device, ensure the supply decoupling network follows the datasheet reference (typically 100 nF plus bulk capacitor). Verify that the BDM connector is accessible for in-circuit debugging and that the Flash programming voltage timing meets the data sheet specifications. This page synthesizes current distributor pricing, drop-in compatible alternatives, and practical design notes that go beyond what the manufacturer datasheet alone provides, helping engineers evaluate, source, and apply the MC908JL8CDWER.

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MC908JL8CFAER2 - 8KB Flash 8MHz 8-bit HC08 MCU | NXP | 32-LQFP
MC908JL8CFAER2

MC908JL8CFAER2 - 8KB Flash 8MHz 8-bit HC08 MCU | NXP | 32-LQFP

The NXP MC908JL8CFAER2 is an 8-bit HC08-family microcontroller with 8KB of FLASH program memory, 256B RAM, and an integrated 8-bit ADC, housed in a 32-pin LQFP (7x7) package. It is part of the low-cost, high-performance M68HC08 Family and operates at 8MHz internal bus frequency across 2.7V–5.5V, targeting cost-sensitive embedded applications. An 8-bit microcontroller is a single-chip computer that integrates a CPU, program memory (FLASH/ROM), data memory (RAM), and peripherals (ADC, timers, I/O, communication blocks) on one silicon die. Within the embedded hierarchy, the MC908JL8CFAER2 sits as: MCU -> 8-bit microcontroller -> HC08 family -> Freescale/NXP M68HC08 lineage -> embedded controller. It typically replaces discrete logic in appliances, sensor interfaces, and human-interface subsystems where 32-bit overhead is not justified. Key features include an on-chip 8-channel 8-bit ADC for analog sensor digitization, a 16-bit timer with capture/compare/PWM, an internal oscillator trimming block, low-voltage reset, and up to 23 general-purpose I/O pins. The 32-LQFP package exposes the full peripheral set while remaining hand-solderable for prototyping. The device uses the HC08 CPU core, which executes most instructions in 1–2 internal bus cycles and supports BCD arithmetic, stop/wait low-power modes, and a built-in in-circuit FLASH programming interface. The integrated 8-bit ADC replaces an external ADC chip in many designs, reducing BOM cost. Typical applications include BLDC motor control in white goods, sensor signal conditioning, keypad interfaces, IR remote controls, and HVAC thermostat boards. Its 5V tolerance and broad I/O count make it a fit for industrial sensor hubs. When designing with this device, ensure the supply decoupling network uses a 100nF ceramic capacitor within 5mm of the VDD pins. FLASH programming requires the factory bootloader mode — confirm that your toolchain supports HC08 before lockout. This page synthesizes distributor pricing, drop-in HC08 alternatives, and practical design notes not found in the manufacturer datasheet.

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