Интегральные схемы

MC68HC705C8AB

MC68HC705C8AB - 8KB OTP 8-Bit HC05 MCU 2.1MHz | NXP | 42-PDIP

The NXP (formerly Motorola/Freescale) MC68HC705C8AB is an 8-bit CMOS microcontroller built on the HC05 core, integrating 8 KB of one-time-programmable (OTP) program memory, 304 bytes of on-chip RAM, and 24 general-purpose I/O lines in a 42-pin PDIP package. It operates from a single 3.3 V or 5 V supply and executes instructions at up to 2.1 MHz from an internal oscillator, making it well-suited for cost-sensitive embedded control. Background: An 8-bit microcontroller (MCU) is a single-chip computer integrating a CPU, non-volatile program memory, volatile data RAM, timers, and programmable I/O. The MC68HC705C8AB belongs to the M68HC05 family - a long-running CISC architecture that influenced the later HC08 and HCS08 lines. Within the embedded hierarchy, this part sits at: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. It targets legacy automotive body controllers, appliance controls, and industrial sensor front-ends where deterministic bit-manipulation and small code footprint matter more than raw MIPS. Key features include 8 KB OTPROM (8K x 8) for firmware storage, 304 bytes of RAM for variables and stack, 24 bidirectional I/O pins with programmable direction, a 16-bit timer with capture/compare, a fixed internal oscillator, and a serial communications interface (SCI). The 42-pin PDIP form factor supports through-hole assembly on legacy and prototype boards where socketed designs and easy programming are priorities. The HC05 CPU uses a fixed instruction set with bit-manipulation primitives, an accumulator-based architecture, and a memory-mapped I/O scheme. Its 2.1 MHz bus clock yields an instruction cycle of 0.95 microseconds (4-cycle bus), providing adequate throughput for slow control loops rather than DSP-class workloads. Typical applications include automotive body and chassis subsystems (window lift, seat control, instrument clusters), white-goods motor controllers (washing machines, dishwashers), HVAC damper and thermostat controls, and simple sensor-conditioning front-ends. The OTP memory allows low-NRE production runs while keeping per-unit cost low. When designing with this device, note that OTP cannot be re-programmed in-circuit - debugging requires a windowed EPROM sister (MC68HC705C8A with 'B' ceramic package) or a modern emulation adapter. Plan firmware revisions accordingly. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical HC05 design notes that go beyond what is printed in the manufacturer datasheet, helping engineers validate substitution choices for legacy 42-PDIP layouts.

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MC68HC705C8AFNE

MC68HC705C8AFNE - 8-bit HC05 MCU 8KB OTP 44-PLCC | NXP

The NXP MC68HC705C8AFNE is an 8-bit HC05-family microcontroller unit (MCU) with 8KB of one-time programmable (OTP) program memory, 304 bytes of on-chip RAM, and a 2.1 MHz bus clock, housed in a 44-pin PLCC (J-lead) package rated for the commercial temperature grade. Background: An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (ROM/Flash/OTP), data memory (RAM), and programmable I/O peripherals on one die. The HC05 family from Motorola/Freescale/NXP is one of the longest-lived M68HC05 architectures, designed for low-cost, high-reliability embedded control in appliances, automotive body electronics, and industrial sensors. HC05 sits within the broader taxonomy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. Key features include a CISC HC05 core, 8KB OTPROM for code storage, 304-byte RAM, 16-bit timer with input capture/output compare, an 8-bit PWM timer, a synchronous serial peripheral interface (SPI) and a serial communications interface (SCI/UART), an 8-channel 8-bit ADC, and a programmable low-voltage reset. Operating voltage is 3.0V to 5.5V with commercial temperature grade (0C to +70C). The 44-pin PLCC package gives ample I/O for human-machine-interface and motor-control front-ends. The HC05 core uses a fixed instruction set with multiple addressing modes, an accumulator-based ALU, and a 16-bit program counter that can address up to 8KB. Program memory is implemented as UV-erasable EPROM on the C8A die, but the FNE suffix denotes the OTPROM windowless production variant intended for factory programming. The 304-byte SRAM is split between a 192-byte user RAM block and 112 bytes of stack/I/O register area. Typical applications include appliance control boards (washing machines, microwave ovens, HVAC dampers), automotive body controllers (window lift, mirror, seat modules where the part remains in production or service stock), security alarm panels, and low-cost industrial timer/counter boards. Its on-chip ADC and PWM also suit white-goods inverter control loops at modest switching rates. Design consideration: because OTPROM is one-time programmable, code must be fully validated in emulation (using the EPROM-based MC68HC705C8ACE or RAM-part EVB) before committing to the OTPROM FNE variant. Provision a self-boot mode and consider the 44-pin PLCC socket footprint for field-replaceability. This page consolidates distributor pricing, drop-in alternative 68HC05 family parts, and practical design notes that are not all present in the legacy MC68HC705C8A datasheet.

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MC68HC705L32FU

MC68HC705L32FU - 8-Bit MCU, 8KB ROM, 256B RAM | Freescale

The Freescale Semiconductor MC68HC705L32FU is an 8-bit HC05-series embedded microcontroller with 8 Kbytes of user ROM, 256 bytes of static RAM, and five parallel ports identified as ports A, B, C, D, and E. The verified family documentation describes the MC68HC705L family as an 80-pin microcontroller unit, although the exact package designation and lead count of the FU ordering variant require confirmation. The device is intended for embedded control systems that combine a compact processor core with parallel digital I/O and legacy HC05-compatible peripherals. A microcontroller is a semiconductor device that integrates a CPU core, program memory, data memory, and peripherals into one component. In the product hierarchy, the MC68HC705L32FU is an embedded microcontroller, an 8-bit microcontroller, and an HC05-family MCU. Its value lies in consolidating deterministic control functions into a single package, reducing the number of discrete logic components needed for industrial equipment, appliance controllers, and legacy embedded platforms. The available verified data confirms an 8-bit HC05 CPU and identifies the broader family as having sophisticated on-chip peripheral functions. The documented memory map includes 8 Kbytes of user ROM and 256 bytes of static RAM. Five parallel I/O ports provide a practical interface to switches, indicators, relays, sensors, and other digital peripheral devices. The product search data does not provide verified operating voltage, clock frequency, package dimensions, pin-level function assignments, or absolute maximum ratings. The HC705L architecture is a legacy embedded-control platform rather than a high-performance processor. It is best suited to firmware that coordinates digital inputs and outputs, timing, and simple peripheral interactions. Because exact timing and electrical limits are not present in the supplied verified data, design engineers should not infer them from modern MCU families. The manufacturer family datasheet should be consulted for clock, reset, interrupt, port, power, and timing details before schematic capture or firmware deployment. Typical application domains include industrial control equipment, appliance and appliance-adjacent controllers, instrumentation interfaces, legacy machine controls, and embedded systems that already use HC05-family software or peripherals. The five documented parallel ports make the device particularly relevant when a system requires several digital lines rather than a high-speed serial interface. Exact MCU selection still depends on checking the package footprint, pin multiplexing, memory requirements, and electrical limits. A key design consideration is legacy-toolchain compatibility. Engineers should preserve the original HC05 memory map, port assignments, reset behavior, and interrupt conventions unless a complete hardware review confirms that a substitute is electrically and software compatible. The supplied search results identify availability and pricing resources, but do not establish that any alternative is pin-to-pin drop-in. This product page consolidates the verified family memory description, distributor availability references, package-related uncertainty, and procurement links. It also distinguishes documented MC68HC705L characteristics from parameters that still require verification in the exact MC68HC705L32FU datasheet and package drawing.

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MC68HC705L5FUE

MC68HC705L5FUE - 8-Bit HC05 MCU 8KB EPROM 80-QFP | NXP

The NXP Semiconductors MC68HC705L5FUE is an 8-bit HC05-family microcontroller (MCU) based on the M68HC05 CPU core, delivering 2.1 MHz CPU clock speed with 8KB (8K x 8) on-chip EPROM (UV-erasable) program memory, housed in an 80-pin QFP (14x14 mm) surface-mount package. Per the NXP/Freescale datasheet family, the device integrates 176 bytes of RAM, multiple 8-bit parallel ports, a programmable timer, and serial peripheral interfaces, targeting cost-sensitive embedded control applications. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (ROM/EPROM/Flash), working RAM, and a range of peripheral interfaces (timers, serial ports, GPIO, ADCs) into one package. Within the broader semiconductor hierarchy, an MCU sits below microprocessors (MPUs, which need external memory) and above generic logic ICs; the HC05 family specifically belongs to the 8-bit CISC category originally introduced by Motorola and now maintained by NXP. The 'HC705' prefix denotes an EPROM/OTP-programmable derivative of the masked-ROM HC05, intended for prototyping and low-volume production. Key features of the MC68HC705L5FUE include 8KB of user-programmable EPROM with on-chip charge pump for in-circuit programming, 176 bytes of on-chip RAM, a 16-bit programmable timer with input-capture/output-compare, an 8-bit A/D converter (per family datasheet), a Serial Communications Interface (SCI), and a Serial Peripheral Interface (SPI). The 80-pin QFP (QFP-80, 14x14 mm, gull-wing) package provides ample I/O for LCD drive, keypad scanning, and bus expansion. The architecture is a fully static CMOS design with low-power STOP and WAIT modes, supporting operation from a single 3.3 V or 5 V supply. The M68HC05 instruction set is well documented and supported by legacy assemblers and C compilers from Cosmic, IAR, and Metrowerks. Typical applications include industrial control panels, low-end consumer appliances, security/keypad systems, and legacy instrumentation where the HC05 ecosystem is already deployed. The EPROM windowed package (UV-erasable) is most useful for engineering development and low-volume programming iterations. As of 2026-10-09, the part is in mature/legacy status with NXP/Freescale; new designs should evaluate ColdFire or Kinetis replacements.

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MC68HC711E20CFU4

MC68HC711E20CFU4 - 8-Bit 20KB EPROM 64-PQFP MCU

The Freescale Semiconductor MC68HC711E20CFU4 is an 8-bit M68HC11-family microcontroller with 20 KB of EPROM, operation from a single 5 V supply, and a 64-pin PQFP package. It is designed for embedded control systems requiring deterministic digital I/O, serial communications, timer resources, and EEPROM capability. The verified distributor listing identifies the HC11 CPU, 20 KB EPROM, 5 V supply, and 64-pin PQFP package; additional electrical limits and complete timing parameters are not supplied in the verified excerpts. A microcontroller such as the MC68HC711E20CFU4 sits above simple logic ICs in the semiconductor hierarchy: it integrates CPU, program memory, data memory, timers, serial interfaces, and parallel I/O into one device. An 8-bit microcontroller executes instructions over an 8-bit data bus, making it well suited to appliances, industrial controllers, instrumentation, and legacy embedded platforms where cost, deterministic control, and peripheral integration matter more than high computational throughput. The most useful verified features are the 8-bit HC11 CPU, 20 KB EPROM, 5 V operation, 64-pin PQFP package, and the listed SPI capability. The EPROM provides permanent program storage for firmware, while the large pin count supports multiple peripheral functions and dedicated I/O. The manufacturer-family description confirms that M68HC11E-series devices combine the CPU with high-performance on-chip peripherals, but exact pin functions, interrupt vectors, and peripheral limits must be taken from the complete datasheet. MC68HC711E20CFU4 belongs to the M68HC11 E-series architecture. Its legacy 8-bit design is appropriate for embedded controllers that were originally developed around the HC11 instruction set. The part is typically programmed and qualified against the original M68HC11E documentation rather than modern high-performance MCU platforms. The verified sources identify both Motorola-era documentation and later Freescale/NXP-related distribution records, reflecting the device's long legacy support history. Typical uses include industrial equipment, motor and process-control systems, automotive and transportation modules, communications interfaces, and embedded products where an 8-bit HC11 architecture is already established. In these applications, the controller can supervise sensors, operate actuators, manage timers, and communicate through serial peripherals while retaining a straightforward legacy software model. The most important design consideration is supply continuity: this is a legacy microcontroller and is offered by Rochester Electronics through the verified distributor listing. Engineers should confirm stock, package suffix, memory configuration, temperature grade, and programming requirements before committing a new design. A replacement must match the exact pinout, memory map, peripheral arrangement, clock behavior, and software assumptions rather than merely having a similar instruction set. This page consolidates the verified distributor pricing snippet, source traceability, legacy-MCU context, package information, and engineering selection cautions. The alternative section intentionally avoids unverified cross-device claims because the supplied cross-reference results did not identify enough exact, pin-compatible drop-in MPNs.

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MC68HC711MA8FU

MC68HC711MA8FU - 8-Bit HC11 MCU, 12KB EPROM, 5V | Freescale / NXP

The Freescale Semiconductor (NXP) MC68HC711MA8FU is an 8-bit M68HC11-family microcontroller featuring an HC11 CPU core, 12 KB of on-chip EPROM program memory, and 5V single-supply operation, all integrated into a 64-pin ceramic-windowed Quad Flat Package (QFP) for field-programmable prototyping and embedded-control applications. The MA8 variant in the MC68HC711 family combines the classic HC11 instruction set with EPROM programmability via an external programming voltage applied to the on-package quartz window, making it suitable for development, low-volume production, and end-of-line calibration tasks where code revisions are expected. A microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, data RAM, timers, serial interfaces, and I/O peripherals onto a single silicon die. The 8-bit HC11 family occupies the historical role of a mid-range general-purpose embedded controller in the broader taxonomy of microcontrollers and microprocessors -> microcontrollers -> M68HC11 family -> HC11 CPU -> semiconductor; this is the same architectural lineage as the MC68HC11E and MC68HC711E9, sharing the HC11 instruction set for source-code compatibility. Key specifications for the MC68HC711MA8FU include 12 KB of EPROM, 256 bytes of on-chip RAM (family-typical, mark this as nominal for the family), a 5V supply with a typical HC11 operating range of 4.5 V to 5.5 V, 8-channel 8-bit ADC on most variants of the family, an enhanced 16-bit timer/counter system with capture and compare, and a non-multiplexed address/data bus available in expanded modes for external memory interfacing. The ceramic-windowed QFP package allows the EPROM to be erased under UV light and reprogrammed, a feature now restricted to legacy and educational designs but historically vital for embedded development. Typical applications for the MC68HC711MA8FU include industrial control systems, automotive subsystems (pre-CAN network nodes), instrumentation with on-chip ADC, motor-control front-ends using the timer's PWM outputs, and legacy equipment drop-in replacements where the HC11 instruction set is mandatory for code reuse. The combination of EPROM flexibility, on-chip peripherals, and a stable HC11 toolchain ecosystem still keeps the part in service for industrial and aerospace sustainment programs. When designing with the MC68HC711MA8FU, pay attention to AVDD/VSS separation and decoupling: place a 100 nF ceramic capacitor within 5 mm of each supply pin and a single 10 uF bulk capacitor near the package. The HC11 expanded-mode bus signals (AS, E, R/W, D0-D7, A0-A15) require careful PCB impedance control when interfacing external memory. The part is classified as obsolete or last-time-buy at most authorized distributors; remaining stock is held by Rochester Electronics, a licensed aftermarket supplier that supports end-of-life components. New designs should select a current-generation Freescale / NXP S08 or S12 MCU unless code compatibility or legacy support mandates the HC11.

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MC68HC908AP16CFB

MC68HC908AP16CFB - 8-Bit HC08 MCU 16KB Flash 44-QFP | NXP

The NXP (formerly Motorola/Freescale) MC68HC908AP16CFB is an 8-bit HC08-family microcontroller IC featuring a 16KB FLASH program memory, an 8MHz CPU core, and a 44-pin QFP (10x10mm) package. According to the MC68HC908AP16CFB datasheet (Advance Information - Rev 4.0), this device integrates an enhanced M68HC08 central processor unit (CPU08) with on-chip FLASH, RAM, and a rich set of peripherals optimized for low-power embedded designs. An 8-bit microcontroller (MCU) is a small computer-on-a-chip combining a CPU, program memory, data memory, and I/O peripherals on a single die. The MC68HC908AP16CFB belongs to the M68HC08 family of 8-bit MCUs, which evolved from the earlier M68HC05 family and added a fully static CPU with enhanced addressing modes. Within the broader taxonomy, MC68HC908AP16CFB sits at: microcontroller (MCU) -> 8-bit MCU -> HC08 family -> M68HC08 -> AP16 sub-family. It is also closely related to the MCHC908 line because MC68HC908 and MCHC908 are equivalent prefixes used across the same silicon (per NXP community confirmation). Key features of the MC68HC908AP16CFB include 16KB of in-application programmable FLASH, an internal bus architecture supporting byte-efficient instruction execution, multiple 16-bit timer interfaces, an analog-to-digital subsystem, and serial communication modules. The 44-QFP (10x10) plastic quad flat pack is a JEDEC-standard surface-mount package with gull-wing leads on all four sides, suitable for production SMT lines and hand-rework on development boards. The HC08 CPU08 core uses a Von Neumann architecture with a 16-bit stack pointer and index register, enabling compact C and assembly code. The device includes on-chip in-circuit debug (ICD) support and a FLASH security feature to protect IP. Operating voltage is typically 5V (3V to 5.5V supply range is common across the family, exact range should be confirmed in the datasheet). Typical applications include remote keyless entry (RKE) transmitter designs, automotive body electronics, industrial control panels, low-power sensor signal conditioning, and small appliance controllers. The HC08 instruction set and wide peripheral set make this device well-suited for cost-sensitive, deterministic control tasks that do not require the performance of a 32-bit MCU. When designing with this MCU, ensure the oscillator and reset circuits follow the application note recommendations in the MC68HC908AP16 datasheet family. Use the on-chip FLASH security bit to lock code against unauthorized read-back, and follow Freescale/NXP programming specifications for in-application FLASH updates if required. This page synthesizes datasheet specifications, lifecycle status, available alternatives from the DigiKey cross-reference tool, and design considerations not found in any single source on the open market.

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MC68HC908AP32CB

MC68HC908AP32CB - 8-Bit HC08 MCU, 32KB Flash, 42-PDIP | NXP

The NXP MC68HC908AP32CB is an 8-bit HC08 family microcontroller integrating 32KB of on-chip Flash program memory and 2KB of RAM into a 42-pin PDIP through-hole package. It is part of the legacy Freescale/Motorola AP32 sub-family designed for cost-sensitive 8-bit embedded control with an HC08 core running up to 8 MHz and connectivity peripherals including I2C, IRSCI, SCI, and SPI. An 8-bit microcontroller (MCU) is a single-chip processor with an 8-bit data bus, on-chip program and data memory, and integrated peripherals such as timers, communication controllers, and general-purpose I/O. The MC68HC908AP32CB belongs to the hierarchy: microcontroller -> 8-bit MCU -> HC08 family -> Freescale/NXP AP32 sub-family -> 42-pin PDIP variants. This taxonomy places the part in the broader class of embedded processors used in industrial control, automotive body electronics, and consumer appliances. Key features include 32 programmable I/O lines, low-voltage detection (LVD), power-on reset (POR), a pulse-width modulation (PWM) module, and an LED driver capability. The HC08 core uses a von Neumann architecture with 16-bit index register and stack pointer, enabling C and assembly-language development using the COSMIC or Metrowerks CodeWarrior toolchains. The device operates across an industrial temperature range typical of the AP32 family. Typical applications include industrial sensor interfaces, low-end motor control loops, automotive body controllers (non-safety), white goods / appliance control boards, and consumer remote/keypad modules. The 42-pin PDIP package simplifies prototyping and rework on through-hole production boards. When designing with this part, note that it is in the obsolete lifecycle per distributor records, so designers should verify long-term availability or plan migration to a current-generation NXP S08 or Kinetis E-series MCU that offers pin-compatible or footprint-similar replacements with active production status. This page synthesizes distributor pricing (DigiKey, Octopart), drop-in / same-footprint alternatives, and practical design notes that complement the manufacturer datasheet and accelerate obsolescence-risk mitigation planning.

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MC68HC908BD48I

MC68HC908BD48I - 8-Bit 6MHz MCU with 48KB Flash

The Freescale Semiconductor MC68HC908BD48I is an 8-bit HCMOS microcontroller operating at up to 6 MHz, with 48 KB of embedded Flash memory and a 42-pin PDIP package. It belongs to the HC08 microcontroller family and combines a compact CPU, on-chip flash, analog conversion, timing, serial, and USB-related resources for embedded-control designs. An 8-bit microcontroller is a programmable controller designed for modest data widths, real-time control, and peripheral integration. In the product hierarchy, the MC68HC908BD48I is a microcontroller, an embedded-processing IC, and a semiconductor rather than a general-purpose computer. Its integrated flash reduces external program-memory requirements, while the integrated analog and timing peripherals can reduce the component count in control, sensing, and communication systems. Key features identified in the verified distributor listing include an 8-bit architecture, 6 MHz operation, and 48 KB of Flash memory. The manufacturer datasheet search result additionally identifies a 6-channel, 8-bit analog-to-digital converter, a 16-channel, 8-bit pulse-width modulator, and USB 1.0 low-speed bus support with three endpoints. These functions make the device suitable for applications requiring embedded control alongside basic sensing, timing, and low-speed connectivity. The MC68HC908BD48I is based on the HC08 platform, whose HCMOS implementation supports a compact embedded-control architecture. Its 8-bit processing core is intended for control logic, state machines, keypad or switch handling, and peripheral coordination rather than computationally intensive workloads. The 48 KB Flash capacity provides a meaningful program-memory budget for embedded firmware while eliminating the need for an external program-memory device in many designs. Typical applications include industrial control equipment, instrumentation, consumer products, USB-connected peripherals, and low-cost embedded systems. The analog-to-digital and PWM resources can support sensing, actuator control, motor or lamp modulation, and periodic signal generation. USB support can simplify connection to a host system when the firmware implements the required low-speed USB behavior and the board provides suitable signal routing. When designing a new board, use the manufacturer datasheet and package pinout as the authority for pin assignment, power, clocking, programming, and peripheral multiplexing. The 42-pin PDIP package is through-hole and is not electrically interchangeable with a surface-mount package without a deliberate PCB redesign. Firmware toolchain, programming method, timing requirements, and USB implementation should be validated before production use. This page consolidates the verified distributor identification, manufacturer datasheet link, package information, key embedded resources, and practical selection considerations. It does not invent electrical values, pricing, pin functions, or replacement parts that were not present in the supplied verified data.

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MC68HC908BD48IB

MC68HC908BD48IB - 8-bit HC08 MCU 48KB Flash USB | NXP

The NXP MC68HC908BD48IB is an 8-bit HC08-family microcontroller featuring 48KB of Flash program memory, 1KB of RAM, an integrated low-speed USB 1.0 interface with three endpoints, a 6-channel 8-bit ADC, and a 16-channel 8-bit PWM, housed in a 42-pin SDIP (Shrink DIP) package. It executes instructions from the HC08 core at an internal bus speed of 6 MHz and is targeted at consumer and industrial human-interface devices that need embedded USB connectivity. An HC08 microcontroller is a member of the 8-bit microcontrollers category, which falls under the broader hierarchy of microcontrollers -> microprocessors -> processors -> semiconductor devices -> integrated circuits. The HC08 architecture uses a von-Neumann memory map with a HCMOS process technology and is the predecessor of the enhanced HCS08 family, sharing the same instruction set for software portability. Within NXP's (formerly Motorola/Freescale) 8-bit roadmap, the MC68HC908BD48 belongs to the BD-series, which is specifically optimized for USB-enabled peripherals such as keyboards, mice, game pads, and pointer devices. Key differentiating features of the MC68HC908BD48IB include on-chip USB 1.0 low-speed transceiver compliant with the Universal Serial Bus specification, a 6-channel 8-bit ADC for analog sensing, a 16-channel 8-bit PWM for motor control or LED dimming, and an internal oscillator that reduces external component count. The device integrates 32 general-purpose I/O pins and includes a 42-pin SDIP through-hole package for robust prototyping and field-replaceable modules. The architecture combines an 8-bit HC08 CPU, security features to lock Flash memory against unauthorized reads, and a low-power STOP/WAIT mode for battery-aware USB peripherals. The integrated USB PHY eliminates the external transceiver typically required for low-speed USB on other 8-bit MCUs, reducing BOM cost and PCB area while maintaining full USB 1.0 compliance. Typical applications include USB keyboards, USB mice and pointing devices, USB game pads and joysticks, USB barcode scanners, and low-speed USB industrial input devices. The integrated ADC and PWM allow the same MCU to drive both analog sensors and actuators alongside the USB interface. When designing with the MC68HC908BD48IB, ensure proper USB bus-power decoupling (per USB 1.0 specification) and respect the 5V VCC tolerance of the USB D+/D- pins. The internal oscillator eliminates an external crystal for USB-synchronized applications, simplifying the BOM and reducing the PCB footprint compared to crystal-driven alternatives. This page synthesizes distributor pricing, drop-in same-package alternatives, and design considerations not found in the manufacturer datasheet to help engineers evaluate this legacy USB 8-bit MCU for both new designs and field replacements.

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MC68HC908GP32CB

MC68HC908GP32CB - 8-Bit 8MHz MCU 32KB Flash 42-PDIP | NXP

The NXP (formerly Motorola/Freescale) MC68HC908GP32CB is a member of the M68HC08 family of 8-bit microcontroller units featuring a CPU08 core running at 8 MHz bus frequency, 32 KB of on-chip FLASH program memory, 512 bytes of RAM and a 42-pin PDIP package. The device integrates a 33 I/O line count with extensive on-chip peripherals including multiple timers, an SPI, an SCI, and a 10-channel 8-bit ADC. Background knowledge: An 8-bit microcontroller is a single-chip computer that integrates a CPU, RAM, non-volatile program memory (Flash/ROM/EPROM) and configurable peripheral I/O onto a single IC. Within the taxonomy, MCUs fall under microcontrollers -> integrated circuits -> semiconductors. The M68HC08 family from Motorola/Freescale (now NXP) was a popular successor to the earlier M68HC05 family, adding a stack pointer-based CPU08 core with X/Y index registers, a wider 16-bit address space and improved instruction set while preserving HC05 software compatibility. The 'GP' sub-family is general-purpose with a balanced mix of timers, serial ports and A/D. Key features include 32 KB FLASH (32K x 8) with in-system programming support, 512 bytes of on-chip RAM, a 10-channel 8-bit ADC, two 16-bit timers with capture/compare/PWM, an SPI, an SCI for asynchronous serial, and a programmable COP watchdog. A built-in 12 V high-voltage programming interface allows FLASH updates without an external bootloader ROM. Architecturally the CPU08 runs from a 3.0-5.5 V supply with internal clock generation from an on-chip oscillator driving a PLL-less 8 MHz bus. The 42-pin PDIP variant (CB suffix) provides a DIP-package form factor for through-hole prototyping, breadboards and legacy industrial retrofits. Memory addressing is 16-bit with banking at the upper 4 KB. Typical applications include automotive body controllers, appliance control boards, simple sensor interfaces, industrial sensor hubs and educational/legacy embedded systems. The general-purpose peripheral mix makes the GP32 suitable wherever moderate I/O and modest computation are required without stepping up to 32-bit cost. Design consideration: Plan for a 5V supply tolerance window (3.0-5.5 V), bulk decoupling near VDD/VSS pairs, and ensure oscillator startup time is accounted for during the reset sequence. When migrating from the older HC05, verify that the indexed addressing mode, stack page register and interrupt vectors are remapped to match the HC08 memory map. This page synthesizes distributor pricing, drop-in alternative MPNs, package-pin details and practical design notes not found in the bare manufacturer datasheet.

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MC68HC908GR16MFA

MC68HC908GR16MFA - 8MHz 8-bit HC08 MCU 16KB Flash 48-LQFP | NXP

The NXP (formerly Freescale/Motorola) MC68HC908GR16MFA is a member of the HC08 family of 8-bit microcontrollers featuring a 16 KB FLASH program memory, 1 KB of RAM, and an 8 MHz maximum internal bus frequency, housed in a 48-pin LQFP (7x7 mm) package with a FLASH-based HC08/S08 CPU core. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (ROM/FLASH), working memory (RAM), and a set of peripherals such as timers, ADC, communication interfaces, and GPIO onto one semiconductor die. Within the broader hierarchy, the MC68HC908GR16MFA sits at: microcontroller -> 8-bit microcontroller -> HC08 family -> FLASH-based HC08 microcontrollers. It targets cost-sensitive, mid-complexity embedded designs where deterministic 8-bit performance is sufficient. Key features include two 16-bit timer interface modules (TIM1 and TIM2), each with 2 channels supporting input capture, output compare, and pulse-width modulation (PWM). The device integrates an 8-channel, 10-bit successive-approximation analog-to-digital converter (ADC), enabling direct sensor interfacing without external components. Additional peripherals include a serial communications interface (SCI), serial peripheral interface (SPI), keyboard interrupt module, and a BREAK (BRK) module that supports single-breakpoint in-circuit debugging. The HC08 core uses a von Neumann architecture with FLASH-based program storage and an integrated clock generator with user-programmable trim, eliminating the need for an external crystal in many applications. The 48-LQFP package exposes up to 39 general-purpose I/O pins and supports an internal bus speed up to 8 MHz with low-voltage operation down to 2.7 V, making it compatible with both 3.3 V and 5 V system rails. Typical applications include white-goods and home-appliance motor control (washing machines, dishwashers), automotive body controllers, simple sensor conditioning nodes, HVAC damper and fan control, low-end consumer electronics, industrial timers and sequencers, and educational/development platforms for 8-bit embedded training. When designing with this part, note that the HC08 instruction set is source-compatible with the older HC05 family, easing migration. Watch the maximum ADC clock and reference-voltage requirements, and ensure the internal oscillator trim is calibrated for UART baud-rate accuracy in SCI applications. This page synthesizes distributor stock data, drop-in compatible alternatives, and practical design notes that go beyond the manufacturer datasheet to help engineers select, source, and deploy the MC68HC908GR16MFA in production designs.

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MC68HC908GR4CFAE

MC68HC908GR4CFAE - 8-bit HC08 MCU, 4KB Flash, 32-LQFP | NXP

The NXP MC68HC908GR4CFAE is an 8-bit HC08 microcontroller with 4KB of Flash program memory, an 8 MHz internal bus frequency, and an SCI plus SPI serial communication block, housed in a 32-pin LQFP package (7x7 mm). It targets general-purpose consumer and industrial embedded control applications and is part of NXP's M68HC08 family of low-cost, high-performance 8-bit microcontrollers (MCUs). An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (ROM/Flash), data memory (RAM), and various peripherals such as timers, ADCs, and communication interfaces onto one die. Within the embedded hierarchy, the M68HC08 family sits between legacy M6805/M68HC05 designs and the modern S08/Coldfire lines, providing upward-compatible object code and C-friendly architecture. Key features of the MC68HC908GR4CFAE include 4KB of Flash, 384 bytes of RAM, 21 general-purpose I/O pins, plus on-chip peripherals such as PWM, an LVD/POR supervisory block, an 8-bit timer, and the previously noted SCI and SPI ports. A high-performance M68HC08 CPU core optimized for C compilers delivers an 8 MHz internal bus and supports system protection features such as low-voltage detection and power-on reset. The part uses a 3.3V/5V dual-voltage operating range and ships in a 32-pin LQFP (7x7 mm) with 21 GPIOs suitable for through-hole-free surface-mount assembly. NXP positions this device for general-purpose applications; this specific variant is flagged as End of Life/Not For New Designs on current NXP product pages, with parts continuing to ship via authorized distributors like Rochester Electronics. Typical applications include appliance control, white-goods user interfaces, simple sensor conditioning, low-cost motor drivers, and industrial control front-ends. Combined SCI and SPI peripherals make this MCU a fit for networked appliance nodes and remote sensor hubs that require point-to-point or short-distance multi-drop connectivity. When designing with this part, verify NXP's current lifecycle status before committing to new designs, plan for PCN (Product Change Notice) review, and ensure a long-term supply path through authorized distributors. Designers should also confirm Flash programming/erasure endurance and in-application programming support for field-update requirements. This page combines distributor pricing from DigiKey, Mouser, and Newark with NXP datasheet specifications and a curated set of same-family and alternative candidates, giving engineers a single-pass view of availability, lead-time risk, and pin-compatible replacements not found in any single vendor listing.

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MC68HC908GR8CDW

MC68HC908GR8CDW - 8-Bit HC08 MCU 7.5KB Flash 8MHz 28-SOIC | NXP

The NXP (formerly Motorola/Freescale) MC68HC908GR8CDW is an 8-bit HC08 CISC microcontroller with 7.5KB of Flash program memory running at 8MHz internal bus speed, housed in a 28-pin SOIC wide-body package. It operates from a 3.3V to 5V supply and targets low-cost embedded control applications. The device is part of the M68HC08 family of 8-bit microcontrollers optimized for low-power operation and is well-suited for applications such as remote keyless entry (RKE) transmitters, small consumer appliances, and industrial control. A microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory (Flash/ROM), peripherals (timers, ADC, communication ports), and sometimes EEPROM into one IC. Hierarchy: MCU -> microcontroller unit -> embedded controller -> semiconductor IC. The 8-bit class represents the largest installed base of MCUs worldwide, prized for deterministic interrupt response, low cost, and ultra-low sleep current. Key features of the MC68HC908GR8CDW include 7.5KB of on-chip Flash memory (7.5K x 8), 384 bytes of RAM, an internal 8MHz oscillator with trim, brownout/low-voltage detection (LVD), power-on reset (POR), multiple 16-bit timers, a 10-bit ADC on selected variants, and a serial communications interface (SCI/SPI). The 28-SOIC wide-body package (0.295 inch / 7.50mm width) provides a robust through-hole-equivalent footprint compatible with hand-prototyping and standard SMT assembly lines. Architecturally, the part uses the enhanced M68HC08 CPU08 core, a true CISC design with flexible addressing modes, a 16-bit stack pointer, and the HC08 BCD math subset. The instruction set is binary-compatible with the earlier M68HC05 family, easing migration for older designs. On-chip in-circuit programmable Flash allows field firmware updates via a background debug mode (BDM). Typical applications include remote keyless entry (RKE) transmitters, security panels, small appliance controllers, simple sensor signal conditioning, low-end motor control, and battery-powered measuring instruments. The 3.3V/5V dual-voltage capability and low-power wait/stop modes also make the part a candidate for portable handheld devices. Designers should configure the LVD threshold and oscillator trim bits during production to ensure reliable reset behavior across temperature. Flash programming must follow the Erase-Program-Verify sequence specified in the Freescale/NXP datasheet to avoid disturb on neighboring bytes. This page synthesizes distributor pricing, drop-in NXP same-family alternatives, and practical design notes not found in the manufacturer datasheet.

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MC68HC908GR8CFA

MC68HC908GR8CFA - 8-Bit HC08 MCU, 7.5KB Flash, 32-LQFP | NXP

The NXP MC68HC908GR8CFA is a member of the low-cost, high-performance M68HC08 family of 8-bit microcontroller units (MCUs). It integrates 7.5 KB of on-chip Flash program memory (7.5K x 8), 384 bytes of RAM, and a CPU08 core running at up to 8 MHz internal bus speed, all housed in a 32-pin LQFP (7x7 mm) package. The device offers 21 general-purpose I/O lines and is optimized for low-power operation. What is an 8-bit microcontroller? An 8-bit microcontroller is a small computer-on-a-chip built around a CPU with an 8-bit data path, on-chip program memory (Flash/ROM), data memory (RAM), and integrated peripherals such as timers, ADCs, and communication interfaces. The M68HC08 family sits within the broader taxonomy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. The HC08 architecture specifically evolved from the earlier HC05 by adding a 16-bit index register, page-free linear addressing, and a more powerful instruction set, making it well suited to cost-sensitive, low-power embedded designs. Key features of the MC68HC908GR8CFA include on-chip peripherals for serial communication (one SCI, one SPI), a PWM module, low-voltage detect (LVD) and power-on reset (POR), an internal oscillator (no external crystal required for basic operation), and a Flash program memory that supports in-system programming. The 32-LQFP package is a low-profile quad flat pack suited to compact surface-mount designs. From a technical depth standpoint, the device uses an enhanced M68HC08 central processor unit (CPU08) with 16-bit stack pointer and index register, page-free linear memory addressing up to 64 KB, and a Flash memory controller supporting block-erase and security modes. It is specified for the standard 5V (or 3V extended) automotive/industrial operating envelope typical of the GR family. Typical applications include remote keyless entry (RKE) transmitters, simple motor control, white-goods and appliance control, low-cost sensor interfaces, and automotive body electronics where small footprint and low power matter. When designing with this part, note that it is part of an NRND/Obsolete M68HC08 line; plan for second-source alternatives or modern Kinetis/EZ80 migration paths. Always check the latest NXP PCN notices before committing to new designs.

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MC68HC908GR8CP

MC68HC908GR8CP - 8-Bit HC08 MCU 7.5KB Flash 8MHz 28-PDIP | NXP

The NXP MC68HC908GR8CP is an 8-bit member of the low-cost, high-performance M68HC08 Family of microcontroller units (MCUs) with 7.5KB of on-chip Flash memory, an 8 MHz CPU08 core, and a 28-pin PDIP through-hole package. It ships in a -40C to +85C industrial temperature grade and operates from a 3.0V to 5.5V supply. A microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory (Flash or ROM), and a range of peripherals such as timers, ADC, serial ports, and GPIO. The MC68HC908GR8CP belongs to the HC08 architecture hierarchy: 8-bit microcontroller -> CISC MCU -> embedded controller -> semiconductor. Within the broader NXP/Freescale portfolio, the GR8 family sits in the low-power, general-purpose 8-bit segment aimed at replacing legacy 68HC05 designs while adding Flash and a richer peripheral mix. Key features include 7.5KB (7.5K x 8) of Flash program memory, 384 bytes of RAM, an internal 8 MHz bus clock, a 6-channel 8-bit ADC, two 16-bit timers, an SCI (UART) port, an SPI port, and up to 21 GPIO lines. The CPU08 core retains HC05 source compatibility while adding a Multiply (MUL) instruction and a higher bus clock. Built-in security includes Flash security and a low-voltage inhibit (LVI) module. Typical applications include legacy industrial control boards, white-goods user interfaces, low-end appliance controllers, automotive body modules (non-safety), HVAC zone controllers, and educational / development platforms. The PDIP-28 footprint also makes it a friendly target for through-hole prototyping and field service replacements. When designing with this device, place decoupling capacitors close to VDD/VSS pairs and leave the IRQ/Reset pin accessible for in-system debugging. Note that the GR8 is now in Obsolete / Last Time Buy status - design new platforms around the S08 or S12 families, but treat the GR8 as a long-life replacement for installed HC05/HC08 bases.

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MC68HC908GT16CB

MC68HC908GT16CB - 8-Bit 8MHz 16KB FLASH HC08 MCU | NXP 42-PDIP

The NXP (formerly Freescale) MC68HC908GT16CB is an 8-bit HC08-family microcontroller with 16KB of FLASH program memory, an 8 MHz internal bus clock, and a 42-pin PDIP through-hole package, designed for cost-sensitive embedded control applications. It integrates a 16-channel 10-bit ADC, multiple timers, and standard serial communication peripherals in a single CMOS device, making it suitable for automotive body electronics, appliance control, and industrial monitoring. A microcontroller (MCU) is a single-chip computer that contains a processor core, program memory, data memory, and peripheral interfaces on one integrated circuit. The HC08 family is an 8-bit CMOS architecture descended from the original Motorola 6800, offering a low-cost, high-performance upgrade path for legacy 68HC05 designs. The MC68HC908GT16CB belongs to the GT series, which is optimized for general-purpose embedded control with an integrated 10-bit ADC for analog signal acquisition. Key features include 16KB of on-chip FLASH for program storage, 512 bytes of RAM for data, a 16-channel 10-bit analog-to-digital converter, a serial communications interface (SCI), a serial peripheral interface (SPI), and a 6-channel timer interface. The device operates from a single 3V to 5.5V supply, supports a maximum internal bus frequency of 8 MHz (equivalent to 8 MIPS), and includes a low-voltage inhibit (LVI) module for brown-out protection. An on-chip in-circuit programmable FLASH allows firmware updates without removing the device from the board. Architecturally, the MC68HC908GT16CB uses the HC08 CPU core with a 16-bit stack pointer, 16-bit index register, and an 8-bit accumulator-based programming model. The integrated analog multiplexer routes up to 16 external channels into the 10-bit successive-approximation ADC, supporting ratiometric measurements when the supply is used as the reference. FLASH memory is organized in pages and supports both in-circuit programming and security-locked modes for IP protection. Typical applications include HVAC control modules, appliance user interfaces (washing machines, microwaves), automotive body controllers (window lift, seat control), security alarm panels, and battery-powered sensor readers. The 16-channel ADC and 8 MHz bus speed strike a balance between analog measurement capability and deterministic control-loop performance for these mid-tier embedded systems. When designing with this part, ensure the oscillator and reset circuits follow the datasheet recommended layout. The device's 42-pin PDIP footprint simplifies breadboarding and hand-soldered prototypes. Watch for the minimum VDD ramp time for proper FLASH programming and verify the LVI threshold matches your supply tolerance for reliable brown-out behavior.

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MC68HC908GT16CFB

MC68HC908GT16CFB - 8-bit HC08 MCU, 16KB FLASH, 44-QFP | NXP

The NXP (formerly Freescale) MC68HC908GT16CFB is an 8-bit microcontroller unit (MCU) belonging to the M68HC08 family, featuring a CPU08 core with 16KB of on-chip FLASH program memory and housed in a 44-pin QFP (10x10 mm) package. It operates at a maximum internal bus frequency of 8 MHz and integrates on-chip peripherals including a 10-bit ADC, up to 36 general-purpose I/O lines, a serial communications interface (SCI), a serial peripheral interface (SPI), and a 16-bit timer with capture/compare/PWM channels. What is an HC08 microcontroller? An HC08 (or M68HC08) is a high-performance, low-cost 8-bit microcontroller architecture from Motorola/Freescale/NXP that succeeded the earlier HC05 family. It uses the enhanced CPU08 core, which adds a BGND instruction for in-circuit debugging and an XIRQ interrupt input alongside the original HC05 ISA. Within the broader taxonomy, an HC08 sits under 8-bit microcontrollers, which are themselves a subset of microcontrollers (MCUs) and ultimately embedded processors / semiconductors. HC08 devices typically integrate FLASH or ROM program memory, RAM, multiple timers, ADCs, and serial interfaces on a single die, making them cost-effective for volume embedded control. Key features of the MC68HC908GT16CFB include 16KB FLASH with in-circuit programmability, 1KB on-chip RAM, an on-chip oscillator that can operate with an external crystal or resonator, a low-power STOP and WAIT mode with peripheral wakeup, a 10-bit successive-approximation ADC with up to 8 input channels, and a programmable timebase module with selectable periodic interrupts. The device supports single-wire background debug mode (BDM) for non-intrusive in-circuit development and FLASH programming. Architecturally, the MC68HC908GT16CFB pairs the CPU08 core with a low-power CMOS process and an integrated oscillator/PLL block. The FLASH array includes a security feature that prevents unauthorized code readout, and the on-chip regulator supports wide operating voltages with low quiescent current draw. The 44-QFP package provides generous GPIO count and ADC channels for cost-sensitive industrial and appliance applications that do not require the throughput of a 16- or 32-bit MCU. Typical applications for this device include appliance control boards (washing machines, dishwashers, microwave ovens), industrial sensor interfaces, automotive body and convenience modules, HVAC thermostat controllers, battery chargers, motor-control edge nodes, and consumer remote controls. Its robust peripheral set and mature toolchain make it attractive for designs where code-portability and long-term stability outweigh raw compute performance. When designing with this MCU, ensure that decoupling capacitors (typically 100 nF + 10 µF) are placed close to the VDD/VSS pins and that the BDM debug header is reachable on the PCB to simplify field firmware updates. Engineers migrating from the earlier HC908GT8 (8KB FLASH) to this 16KB variant gain additional code space within the same 44-QFP footprint, easing in-field firmware expansion. This page synthesizes distributor pricing, drop-in-compatible same-family and cross-brand alternatives, pinout annotations, and practical design notes not found in the bare manufacturer datasheet.

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MC68HC908GZ16CFA

MC68HC908GZ16CFA - 8-Bit HC08 MCU, 16KB Flash, 48-LQFP | NXP

The NXP MC68HC908GZ16CFA is an 8-bit HC08-family microcontroller with 16 KB of on-chip FLASH program memory, 1 KB of RAM, and an integrated MSCAN08 (CAN 2.0B) controller, housed in a 48-pin LQFP (7x7 mm) package. It executes instructions from a 8 MHz internal bus clock driven by a clock-generation module that supports 1 MHz to 8 MHz external crystals, and includes FLASH security plus in-system programming via a host PC (no high-voltage entry required). The 'CFA' suffix designates the 48-LQFP industrial-temperature variant in the M68HC08 GZ family. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (FLASH/ROM), volatile data memory (RAM), and a rich set of programmable peripherals (timers, ADC, communications, GPIO) onto one die. The MC68HC908GZ16CFA belongs to the 8-bit MCU category, sitting within the HC08 (HCMOS 8-bit) product hierarchy: HC08 family -> M68HC08 line -> HC908 sub-family -> GZ CAN-integrated series -> low-cost automotive/industrial edge-node controller tier. Key features include an 8-channel 10-bit ADC with internal bandgap reference, two 16-bit timer/PWM modules, a serial communications interface (SCI), a serial peripheral interface (SPI), up to 37 general-purpose I/O pins, and a low-power STOP/WAIT mode with internal COP watchdog. The integrated MSCAN08 module implements the BOSCH CAN 2.0B specification (September 1991 revision), enabling the MCU to serve as a low-end CAN node on automotive and industrial networks. From an architectural standpoint, the HC908GZ16 uses a Von Neumann-style unified address map with FLASH mapped into the program space and supporting in-application re-programming through a ROM-resident monitor. The 5V-tolerant I/O ring and wide operating-voltage range make the part friendly to legacy 5V sensors and actuator drivers found in body-electronics modules. The MSCAN08 peripheral buffers up to 15 CAN messages in hardware, offloading the CPU from bus arbitration tasks. Typical applications include automotive body controllers (door modules, mirror controllers, seat controllers), industrial CANopen/J1939 slave devices, low-end HVAC control boards, appliance control panels, and simple sensor-fusion nodes that require a CAN physical layer but do not justify a 16-bit or 32-bit MCU. The wide 4.5 V - 5.5 V supply range and -40 C to +85 C industrial temperature grade also fit remote telemetry and energy-metering peripherals. When designing with this MCU, pay close attention to the bypass-capacitor guidance shown in Figure 1-4 of the datasheet. Because the HC908GZ16 I/O drivers source fast edges, VDD/VSS pins must each have a 100 nF ceramic placed within a few millimeters of the package. Designers should preserve the IRQ/TBG/Reset pin-out compatibility when migrating between HC908GZ8 and HC908GZ16 variants on the same PCB. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes that are not found in the manufacturer datasheet alone, helping engineers evaluate the MC68HC908GZ16CFA against modern 8-bit alternatives for both new designs and legacy maintenance.

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MC68HC908GZ60CFA

MC68HC908GZ60CFA - 8-Bit HC08 MCU 60KB Flash 48-LQFP | NXP

The NXP MC68HC908GZ60CFA is an 8-bit HC08-family microcontroller (MCU) with 60 KB of on-chip FLASH program memory, an 8 MHz internal bus frequency, and a 48-pin LQFP (7x7 mm) package. It integrates an MSCAN08 CAN 2.0B controller, a 10-bit analog-to-digital converter (ADC), and clock generation supporting 1 MHz to 8 MHz external crystals, targeting cost-sensitive industrial and automotive body-electronics designs. A microcontroller (MCU) is a single-chip computer that contains a CPU core, program memory (FLASH/ROM), working memory (RAM), and peripheral set. The HC08 is a mature 8-bit M68HC08 architecture from NXP (originally Motorola/Freescale), positioned as a low-cost, high-performance successor to the HC05 family. LDOs, switching regulators, and bus transceivers normally surround the MCU on the board, while the HC08 itself sits at the LDO -> linear regulator -> voltage regulator -> power management IC -> semiconductor hierarchy on the BOM. The MC68HC908GZ60CFA belongs to the CAN-enabled GZ sub-family, which adds an automotive-style CAN controller. Key features include 60 KB FLASH with security, 2 KB RAM, an 8-channel 10-bit ADC, an 8-bit keyboard interrupt module, a serial peripheral interface (SPI) and serial communications interface (SCI), and a clock generation module (CGM) with phase-locked loop (PLL). On-chip programming firmware allows in-system FLASH programming from a personal computer without external programmers, and FLASH security prevents unauthorized read-back. The device is built around the HC08 CPU core with a von Neumann-style unified memory map and 16-bit stack pointer. The 8 MHz internal bus is sourced from either a crystal (1-8 MHz) or the on-chip PLL. The MSCAN08 controller implements the BOSCH CAN 2.0B specification dated September 1991, supporting both standard (11-bit) and extended (29-bit) identifiers, with hardware acceptance filtering for bus offload. Typical applications include automotive body controllers, CAN nodes, HVAC modules, industrial sensor interfaces, low-cost appliance controllers, and instrumentation. The wide operating temperature range and robust peripheral set also suit battery management and CAN-connected supervisory nodes. When designing with this MCU, ensure the supply rail (VDD/VSS) is decoupled close to the pins with at least a 100 nF ceramic capacitor, route the crystal traces short and symmetric, and confirm the chosen CAN transceiver matches the MSCAN08's TX/RX logic levels. FLASH security must be set after final firmware load to prevent in-circuit extraction. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers shorten sourcing and design-review cycles.

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MC68HC908GZ60CFJ

MC68HC908GZ60CFJ - 8-Bit MCU 60KB Flash | NXP | Industrial

The NXP (formerly Freescale) MC68HC908GZ60CFJ is an 8-bit HC08 microcontroller featuring 60KB of on-chip Flash program memory and an 8-MHz internal bus frequency, housed in a 32-pin LQFP (7x7) package. It integrates a configurable clock-generation module supporting 1-MHz to 8-MHz crystals, an MSCAN08 controller implementing the CAN 2.0B protocol per the September 1991 BOSCH specification, and the HC08 CPU core optimized for low-cost, high-performance 8-bit applications. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals. In the broader semiconductor taxonomy the MC68HC908GZ60CFJ belongs to the 8-bit microcontroller family -> HC08 family -> M68HC08 family -> embedded microcontrollers -> microprocessors & controllers -> integrated circuits (semiconductors). The 8-bit class remains widely deployed because it offers mature toolchains, deterministic behavior, and excellent code density for control-oriented tasks. Key features include 60KB of Flash program memory with security, 8-MHz maximum internal bus frequency, an integrated 10-channel 8-bit ADC, a serial communication interface (SCI), a serial peripheral interface (SPI), and 33 general-purpose I/O (GPIO) pins. The device operates from 3.0V to 5.5V across the industrial -40C to +125C temperature range and supports in-circuit programming (ICP) via an on-chip programming firmware loader that communicates with a host PC over the standard serial monitor ROM. The HC08 core uses a von-Neumann architecture with a 16-bit stack pointer and a hardware-friendly instruction set that runs at up to 8 MHz from an on-chip oscillator or external crystal. The MSCAN08 module implements the full CAN 2.0B specification (passive and active frames, 29-bit identifier), making this part a strong fit for legacy industrial networks, building automation, and automotive body-electronics nodes that predate widespread adoption of 32-bit Cortex-M controllers. Typical applications include CAN node endpoints in industrial machinery, HVAC controls, appliance control boards, security and access panels, automotive body controllers (window, seat, mirror), and any 5V-tolerant CAN/SCI/SPI gateway. The wide 3.0V-5.5V supply range and the rugged -40C to +125C operating window also make it suitable for outdoor instrumentation and legacy factory-floor replacements. When designing with the MC68HC908GZ60CFJ, ensure decoupling with at least one 100nF ceramic capacitor as close as possible to each VDD/VDDA pin pair, leave the OSC1/OSC2 layout symmetrical, and reserve PTA pins for the background-debug system if in-circuit debug is desired. This page synthesizes distributor pricing, drop-in alternatives within the 32-LQFP footprint, and design notes that complement the manufacturer datasheet to support both new designs and legacy board bring-up.

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MC68HC908GZ8MFJ

MC68HC908GZ8MFJ - 8MHz 8KB Flash HC08 MCU with CAN | NXP

The NXP MC68HC908GZ8MFJ is an 8-bit HC08-family microcontroller with an 8MHz internal bus, 8KB of on-chip Flash program memory, 1KB of RAM, and integrated MSCAN08 (CAN 2.0B) plus SCI, SPI, and LINbus connectivity, housed in a 32-pin LQFP (7x7mm) package. It belongs to the cost-sensitive M68HC08 family of Freescale/NXP microcontrollers designed for automotive body and industrial CAN-node applications where a small, deterministic 8-bit core is preferred over a more complex 16/32-bit device. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (ROM/Flash), data memory (RAM), and a set of peripheral blocks onto one silicon die. The HC08 core uses an enhanced instruction set derived from the earlier M68HC05, with a stack-based architecture, 16-bit index registers, and a linear 64KB address space. Compared with larger ARM Cortex-M0 parts, the HC08 trades raw throughput for predictable interrupt latency, very low peripheral complexity, and long-term toolchain familiarity, which is why the family remains in production for safety subsystems, body controllers, and simple sensor nodes. Key features of the MC68HC908GZ8MFJ include 21 general-purpose I/O lines, an enhanced PWM module, low-voltage detection (LVD) with power-on reset (POR), Flash program memory security, an on-chip clock generator that supports 1MHz to 8MHz crystals, and 8KB of in-application programmable Flash with security lock. The MSCAN08 block implements the Bosch CAN 2.0B active protocol (dated September 1991), and the device is qualified for the temperature range and ESD/EMC margins typical of automotive underhood and body modules. The part uses a 2.7V to 5.5V single-supply architecture with low-power STOP and WAIT modes, making it suitable for body-electronics modules that must wake from CAN traffic. The 32-LQFP package supports standard surface-mount assembly and offers easy access to all peripheral pins for entry-level developers using NXP's HC08 tool chain and the on-chip bootstrap ROM for Flash programming without high voltage. Typical applications include CAN-based body controllers, instrument cluster slaves, HVAC flap/motor controllers, simple sensor interfaces, and LIN/CAN gateway nodes. The wide operating voltage and built-in LVD/POR simplify automotive 12V battery-direct designs. Designers should ensure the IRQ pin has a proper pull-up, route the CANH/CANL differential pair with 120-ohm termination, and use the on-chip COP watchdog to recover from bus stalls. The 32-LQFP ground/power pinout requires at least one decoupling capacitor per VDD pair and a single bulk cap near the package. This page consolidates NXP datasheet specifications, distributor inventory signals, drop-in compatible parts within the HC08 family, and practical design notes not bundled on the manufacturer's product folder.

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MC68HC908GZ8VFJ

MC68HC908GZ8VFJ - 8MHz 8KB Flash 8-bit HC08 MCU | NXP

The NXP MC68HC908GZ8VFJ is a member of the M68HC08 Family of 8-bit microcontroller units (MCUs), featuring an 8 MHz internal bus frequency, 8 KB of on-chip FLASH program memory, and CAN (MSCAN08) connectivity in a 32-pin LQFP (7x7 mm) package. It targets low-cost, high-performance embedded applications in automotive and industrial segments. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (ROM/FLASH), data memory (RAM), timers, communication peripherals, and I/O onto one die. The MC68HC908GZ8 belongs to the HC08 family, NXP/Freescale's widely deployed 8-bit architecture that evolved from the earlier M68HC05 series. Within the broader taxonomy, HC08 sits below 16/32-bit cores such as HCS12, ColdFire, and ARM Cortex-M, and is selected when cost, deterministic behaviour, and code density outweigh raw MIPS needs. Key features of the MC68HC908GZ8VFJ include an 8 MHz internal bus frequency from a Clock Generation Module that supports 1-8 MHz crystals, an MSCAN08 controller implementing CAN 2.0B (per Bosch September 1991 spec), FLASH program memory security, and on-chip programming firmware that allows in-system programming without high voltage. Additional peripherals typical of the GZ family include an 8-channel 10-bit ADC, multiple timers (TBM, TIM08), and SCI/SPI interfaces. Architecturally, the HC08 core uses a von Neumann bus with 16-bit addressing for linear memory access, a B accumulator pair, and H register for indexed operations. The integrated MSCAN08 peripheral enables robust CAN networking for automotive body and chassis applications. Security features include FLASH security bytes to prevent unauthorized read-out of program code, plus a monitor ROM for factory test and user programming. Typical applications include CAN node automotive body controllers, HVAC control modules, instrument clusters, industrial CAN-based sensor interfaces, and low-cost appliance control. The combination of FLASH, CAN, ADC, and timer resources makes the GZ8 particularly suited to distributed nodes on a CAN bus that require local analog sensing and actuator drive. When designing with this device, plan for an external CAN transceiver such as the TJA1050 or MC33901 to interface between the MCU's TTL-level MSCAN08 pins and the physical CAN bus. The 32-LQFP is footprint-compatible with other 68HC908GZ-family variants, enabling reuse when scaling FLASH/RAM up to the GZ16 or GZ60. This page synthesizes distributor pricing, drop-in compatible alternatives from the same GZ family, and practical design notes not consolidated in the manufacturer datasheet.

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MC68HC908JB8ADW

MC68HC908JB8ADW - 8-bit USB MCU, 8KB Flash, 3MHz | NXP

The NXP (formerly Motorola/Freescale) MC68HC908JB8ADW is an 8-bit HC08-family USB microcontroller (MCU) integrating a full-speed USB 1.1 device peripheral with 8 KB of on-chip FLASH memory and 256 bytes of RAM in a 28-pin SOIC package. The CPU runs at up to 3 MHz internal bus frequency from a 3.0V-5.5V supply, and the part is identified as the ADW temperature-grade (-40C to +85C) tray-pack variant. Background: The HC08 is a Customer-Specified Integrated Circuit (CSIC) 8-bit MCU family introduced by Motorola in the 1990s that uses a 68HC08 instruction set, an enhanced version of the HC05 architecture with a 16-bit index register, 16-bit stack pointer and additional addressing modes. The MC68HC908JB8 specifically targets low-cost USB peripherals (HID-class mice and keyboards, USB-to-UART bridges, USB I/O dongles) by integrating a USB 1.1 full-speed (12 Mbps) device controller, an integrated 3.3V USB voltage regulator, and a 5-channel 8-bit ADC together with standard HC08 timers and I/O. MCUs of this class belong to the broader hierarchy of 8-bit microcontrollers -> microcontrollers -> embedded processors -> semiconductor ICs. Key features include 8 KB FLASH (with security), 256 bytes of RAM, an integrated USB 1.1 device transceiver with on-chip 3.3V regulator, dual 16-bit timers (TIM1/TIM2), a 5-channel 8-bit ADC, an SCI/UART, and 23 general-purpose I/O lines. The ADW suffix denotes the -40C to +85C industrial-grade SOIC-28 wide-body (300 mil) package supplied in tube/tray. Architecture uses the HC08 CPU with a 16-bit program counter, 8-bit accumulator A plus combined accumulator B, HIDX index register, 16-bit stack pointer (H:X), and 64 KB linear address space. The USB module implements endpoint 0 control and up to 2 additional endpoints for interrupt or bulk transfers. The internal 3.3V regulator eliminates the need for an external LDO for the USB D+/D- transceiver, simplifying bus-powered designs. Typical applications include USB HID input devices (mouse, keyboard, gamepad), USB-to-serial COM-port bridges, USB flash-memory readers, USB joysticks/readers, low-speed industrial I/O modules with USB diagnostics, and legacy PC peripherals where 8-bit processing is sufficient. The integrated USB peripheral plus on-chip regulator make it particularly attractive for cost-sensitive, bus-powered designs. Design consideration: The USB module draws its 3.3V supply from the internal regulator; ensure adequate bulk decoupling at the VUSB pin (1 uF minimum). The FLASH programming voltage is generated on-chip from VDD; do not exceed 5.5V on any pin during in-circuit programming. This page synthesizes distributor stock and pricing data, the NXP/Freescale datasheet, and parametric drop-in alternatives not consolidated in any single manufacturer catalog.

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MC68HC908GT16CB - 8-Bit 8MHz 16KB FLASH HC08 MCU | NXP 42-PDIP

MC68HC908GT16CFB - 8-bit HC08 MCU, 16KB FLASH, 44-QFP | NXP

MC68HC908GZ16CFA - 8-Bit HC08 MCU, 16KB Flash, 48-LQFP | NXP

MC68HC908GZ60CFA - 8-Bit HC08 MCU 60KB Flash 48-LQFP | NXP

MC68HC908GZ60CFJ - 8-Bit MCU 60KB Flash | NXP | Industrial

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MC68HC908JB8ADW - 8-bit USB MCU, 8KB Flash, 3MHz | NXP