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MC68376BGCAB25 - 32-Bit CPU32 MCU 25MHz ROMless 160-QFP | NXP
MC68376BGCAB25

MC68376BGCAB25 - 32-Bit CPU32 MCU 25MHz ROMless 160-QFP | NXP

The NXP MC68376BGCAB25 is a 32-bit CPU32 (M683xx family) microcontroller IC operating at 25 MHz with ROMless program memory, housed in a 160-pin QFP package measuring 28 mm x 28 mm with 0.65 mm pitch. The part integrates a CPU32 core with on-chip peripheral modules originally designed for automotive and industrial powertrain, body, and chassis applications. A microcontroller (MCU) is an integrated circuit that combines a processor core, program and data memory, and a set of peripherals (timers, communication interfaces, ADC, GPIO) on a single die. The CPU32 core used in the M68376 family is a 32-bit CISC ISA descended from the Motorola 68000 lineage, sitting in the broader hierarchy: CPU32 -> M68k family -> 32-bit embedded microcontroller -> embedded processor -> semiconductor. Legacy 32-bit microcontrollers such as this one remain common in long-lifecycle automotive platforms where firmware stability and mature toolchains outweigh raw performance. Key features include a 25 MHz maximum CPU32 clock, ROMless configuration for external program memory, integrated CAN 2.0B controller, queued serial module (QSM) for SCI/SPI, configurable timer module (CTM) with TPU, 8 Kbytes of internal RAM (per the variant suffix), and a system integration module supporting chip-select generation and DRAM refresh. The 160-QFP package is a plastic quad flat pack with 160 gull-wing leads on 0.65 mm pitch. Typical applications include automotive engine control units (ECU), transmission control modules (TCM), anti-lock braking systems (ABS), body controllers, and industrial motion-control platforms. The integrated CAN interface and TPU make the part particularly suitable for hard-realtime control loops where deterministic interrupt latency matters. When designing with this MCU, verify mask set revision against your firmware - early mask sets of the M68376 had errata in the CTM and TPU. Plan for external program memory interface (e.g., 32 Kbyte x 16 EPROM/Flash) because the ROMless suffix means no internal non-volatile code storage is included.

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MC68376BGVAB25 - 32-bit CPU32 MCU 25MHz ROMless 160-QFP | NXP
MC68376BGVAB25

MC68376BGVAB25 - 32-bit CPU32 MCU 25MHz ROMless 160-QFP | NXP

The NXP MC68376BGVAB25 is a 32-bit CPU32 microcontroller from the M683xx family, operating at 25 MHz with a ROMless configuration housed in a 160-pin QFP (28x28 mm, 0.65 mm pitch) package. It integrates a CPU32 core with 7.5 KB of on-chip RAM, a 16-bit / 18-I/O general-purpose timer, and a queued serial module, targeting embedded automotive and industrial control designs. Background Knowledge: A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory, and peripherals to control external devices in embedded systems. The MC68376BGVAB25 sits at the high end of the legacy 68k family, occupying the CPU32 core (Motorola's first 32-bit extension of the 68000 instruction set) and serving as the integration point between traditional 683xx peripherals and the more powerful PowerPC ColdFire microcontrollers that succeeded it. Externally, MC68376 / MC68336 MCUs are commonly seen in industrial automation, automotive body controllers, and motor-control subsystems where deterministic 68k-family code reuse is desired. Key features include 25 MHz operation, ROMless configuration (external program memory required), 7.5K x 8 RAM, 18 I/O lines, external oscillator support, and an integrated CAN (CANSAP) and queued serial module. It is qualified to a wide operating temperature range typical of automotive under-hood environments. The part is supplied in a QFP-160 plastic quad flat package with 0.65 mm pitch. Technical depth: The CPU32 core implemented in the MC68376 uses a 32-bit internal data path with a 16-/32-bit external bus and executes the M68000 instruction set with additional 32-bit addressing modes. The 25 MHz CPU clock supports ~3 MIPS sustained throughput, sufficient for real-time control loops in industrial drives and body controllers. Integration includes a system integration module (SIM), a 16-bit time processor unit (TPU), and a queued serial multi-channel communication interface. Typical applications include automotive body controllers, factory automation PLCs, motor drive controllers, and industrial inverter control boards. It is also commonly used in legacy embedded designs that require ROMless external flash for code storage. Design consideration: Because the device is ROMless, designers must connect an external program memory such as a 27-series EPROM or parallel flash. A minimum bus width of 16 bits is recommended to avoid wait-state penalties at 25 MHz. Active part is mature in distribution channels. This page synthesizes current distributor pricing, ROMless pin-compatible drop-in alternatives, and practical design notes not found in a single manufacturer datasheet.

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MC6840CFN-G Programmable Timer Module | Rochester Electronics
MC6840CFN-G

MC6840CFN-G Programmable Timer Module | Rochester Electronics

The Rochester Electronics, LLC MC6840CFN-G is a programmable timer module, also identified in the verified distributor data as an MC6840 PTM, supplied in the CFN package designation. The available distributor listing identifies the device under the Clock/Timing and Programmable Timers and Oscillators categories, confirming its role as a timing IC rather than a general-purpose logic, memory, or communications component. Its verified marketplace price starts at $22.3619 as of 2026-10-28, while distributor inventory is also advertised across several authorized or aftermarket channels. A programmable timer module is a clock-and-timing integrated circuit used to generate, divide, count, or measure timing intervals according to externally applied control and reference signals. The MC6840 family designation identifies the product as a timer rather than an oscillator, although programmable timers are commonly paired with external clock sources, counters, and digital control logic. Because the supplied web results do not expose a verified manufacturer datasheet or detailed electrical tables, this page avoids assigning unverified clock frequencies, counter ranges, supply voltages, or timing tolerances. The MC6840CFN-G is especially relevant to legacy industrial, control, and embedded-system designs that use the MC6840 interface and require an authorized replacement source. Its availability through Rochester Electronics and listed distributors makes it useful for repair, continuation, and lifecycle-extension programs. One distributor listing reports 6240 pieces in stock, another reports 9160 pieces, and LCSC describes the component as in stock. These inventories are commercial snapshots and can change independently. The exact CFN package dimensions, pin count, exposed-pad configuration, operating-temperature range, and environmental ratings are not present in the supplied verified data. Engineers should therefore download the original MC6840 manufacturer documentation or request the Rochester Electronics datasheet before approving a new design. Pin assignment, voltage limits, timing-edge behavior, and interface levels must be checked against the original system rather than inferred from the orderable suffix. Typical uses include legacy digital control systems, event-counting modules, pulse-timing circuits, and equipment where an MC6840-compatible timer is already designed into the PCB. In maintenance applications, the safest replacement strategy is to preserve the existing footprint and verify every electrical characteristic. For new designs, evaluate a currently supported timer IC when long-term availability matters, but retain the MC6840CFN-G when preserving an old control platform is more important than modernization. This page consolidates verified distributor pricing, inventory observations, source links, sourcing guidance, and data gaps for the MC6840CFN-G. It deliberately separates confirmed marketplace facts from unverified technical assumptions, giving engineers a more reliable basis for legacy-component procurement and replacement planning.

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MC6840CP - Three-Channel Programmable Timer | Motorola
MC6840CP

MC6840CP - Three-Channel Programmable Timer | Motorola

The Motorola MC6840CP is a Programmable Timer Module (PTM) for the M6800 processor family, providing three independent 16-bit binary counters with corresponding control registers and a status register. The verified source data identifies a programmable subsystem component designed to generate variable system time intervals, but it does not specify the target package dimensions, pin count, supply voltage, clock frequency, or operating-temperature grade. A programmable timer module is a peripheral category that generates timed events, measures intervals, counts external events, and coordinates periodic interrupts in a processor-based system. In the M6800 ecosystem, the MC6840 extends the processor with hardware timing functions that would otherwise require software loops, external counters, or additional logic. Its three counters make it useful for several independent timing tasks within one component. The three 16-bit binary counters are the central architectural feature identified by the Motorola datasheet result. Each counter corresponds to a control register, allowing firmware to select operating behavior, while the status register supports observation of timer events. Specific counter modes, clock inputs, interrupt outputs, read/write timing, and maximum operating frequency require confirmation from the manufacturer datasheet because those details are absent from the supplied verified snippets. Typical legacy applications include periodic service routines, elapsed-time measurement, pulse generation, event counting, industrial-control timing, and M6800-family test equipment. In each case, firmware configures the relevant counter, polls or receives a timer indication, and uses the resulting event for control flow or measurement. The hardware timer reduces processor workload, but software must still initialize each control register and interpret status correctly. The key design consideration is verification of interface details. Before schematic capture or PCB layout, engineers should obtain the original manufacturer datasheet and confirm the exact CP package, pin assignments, signal names, voltage ratings, timing limits, and environmental specifications. Search results include an MC6840CP-G listing from Rochester Electronics, but the suffix and source do not establish that MC6840CP and MC6840CP-G are electrically, mechanically, and pin-for-pin interchangeable. This page combines the verified Programmable Timer Module description, three-counter architecture, distributor evidence, and sourcing links with explicit uncertainty markers. It distinguishes verified facts from missing electrical, package, pinout, pricing-tier, and lifecycle data rather than inferring specifications that are not present in the supplied sources.

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MC6840CP-G - 3-Channel Programmable Timer | Rochester
MC6840CP-G

MC6840CP-G - 3-Channel Programmable Timer | Rochester

The Rochester Electronics, LLC MC6840CP-G is a programmable timer module associated with the Motorola M6800 processor family. The device provides three independent 16-bit binary counters, three corresponding control registers, and a status register for generating and monitoring variable system time intervals. It is intended for legacy M6800-family systems that require programmable interval timing, event counting, or periodic interrupt generation. The supplied source data identifies the device as an integrated circuit from Rochester Electronics, LLC and lists it as active. A programmable timer module is a timing IC that combines hardware counters with processor-accessible control and status registers. Within the hierarchy of timing and clock ICs, it sits below general-purpose clock and timer devices and provides a specialized timing subsystem for a processor bus. The MC6840 architecture allows software to program timing behavior instead of relying on fixed-delay logic or separate discrete counters. The primary architectural feature is the bank of three 16-bit binary counters. Each counter has a corresponding control register, while the status register reports timer-related conditions to the host processor. This organization supports multiple independently configured timing events in one device, reducing the number of external timing components needed by an M6800-family controller. The verified source data does not provide operating voltage, clock frequency, output waveform, maximum count rate, package dimensions, temperature range, or absolute maximum ratings. Typical legacy applications include industrial controller timing, data-acquisition sequencing, periodic service routines, programmable pulse generation, and event counting. In these systems, the timer module can provide repeatable time bases or interrupt requests, allowing the processor to divide software workload without implementing multiple independent counters in firmware. Because this is a legacy M6800-family component, system integration may also depend on processor-specific bus behavior and legacy development tooling. Before designing a new board around the MC6840CP-G, engineers should obtain the complete Motorola MC6840CP datasheet and verify the processor interface, counter mode behavior, timing limits, and package-level pin assignments. The supplied distributor records confirm the product and its programmable timer function but do not establish a complete electrical specification table or a verified replacement list. This product page combines the verified programmable-counter architecture, current distributor references, available pricing information, and practical sourcing guidance. It also distinguishes documented facts from parameters that still require confirmation from the original manufacturer datasheet, helping engineers assess the legacy timer module without inventing electrical, timing, or package data.

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MC68711E20CFNE2 - 8-Bit 2MHz 20KB OTP HC11 MCU | NXP | 52-PLCC
MC68711E20CFNE2

MC68711E20CFNE2 - 8-Bit 2MHz 20KB OTP HC11 MCU | NXP | 52-PLCC

The NXP MC68711E20CFNE2 is an 8-bit HC11-series microcontroller with 2 MHz CPU clock, 20 KB of on-chip One-Time-Programmable (OTP) EPROM, and 768 bytes of RAM, housed in a 52-pin PLCC (Plastic Leaded Chip Carrier) package measuring 19.1 x 19.1 mm. The MC68711E20CFNE2 suffix "E20" identifies a 20 KB OTP EPROM memory size, "CFN" denotes the 52-pin PLCC industrial-temperature package, and "E2" indicates the OTP (erasable window-less) memory option versus the E3/E4 UV-erasable versions. What is a microcontroller (MCU)? A microcontroller is a single-chip computer that integrates a CPU, memory (program + data), and peripheral interfaces on one piece of silicon. The HC11 (High-performance Complementary Metal-Oxide Semiconductor 68HC11) family belongs to the CISC (Complex Instruction Set Computer) microcontroller hierarchy: MCU -> 8-bit MCU -> HC11 family -> M68HC11 E-series -> industrial/automotive embedded controllers. CISC MCUs offer rich instruction sets, multiple addressing modes, and bit-manipulation features favored in legacy automotive, industrial-control, and instrumentation designs. Key features include an M68HC11 CPU core with 16-bit internal addressing, an 8-channel 8-bit ADC, asynchronous serial communications interface (SCI), serial peripheral interface (SPI), 16-bit timer/counter, pulse accumulator, real-time interrupt, computer-operating-properly (COP) watchdog, and up to 38 general-purpose I/O lines. The OTP EPROM allows one-time factory or field programming using an EPROM programmer socket, while the 768-byte on-chip RAM supports variable data storage for stack, registers, and scratchpad operations. The MC68711E20CFNE2 uses a fully static CMOS design allowing clock frequencies down to DC, with low-voltage (3 V) variants available within the E-series family. The 52-pin PLCC package supports both surface-mount assembly and programming-socket insertion for development and prototyping. Operating temperature spans the industrial range of -40 °C to +85 °C, making it suitable for automotive under-hood, factory automation, and harsh-environment embedded applications. Typical applications include automotive engine control units (ECUs), antilock braking systems (ABS), industrial process controllers, instrumentation, security-system controllers, and legacy embedded-control replacements where pin-compatible HC11 footprint compatibility is required. Designers choose the MC68711E20CFNE2 when a mature, well-documented 8-bit core with on-chip EPROM and rich peripherals is preferable to migrating code to a newer architecture. When designing with this device, ensure the OTP programming algorithm matches the manufacturer's specification - incorrect Vpp ramp timing or address sequence can permanently damage the part. Allow at least 100 ms power-on-reset settling time, and use the COP watchdog to detect firmware lockup conditions in safety-critical applications. This page synthesizes distributor inventory, cross-reference alternatives (MC68711E20CFNE3/E4), and design considerations not consolidated on any single manufacturer or distributor page.

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MC68711E20CFNE3 - 8-Bit HC11 MCU, 20KB OTP, 52-PLCC | NXP
MC68711E20CFNE3

MC68711E20CFNE3 - 8-Bit HC11 MCU, 20KB OTP, 52-PLCC | NXP

The NXP MC68711E20CFNE3 is an 8-bit HC11-family microcontroller featuring 20 KB of on-chip One-Time Programmable (OTP) EPROM, 768 bytes of RAM, and 512 bytes of EEPROM, housed in a 52-pin PLCC (Plastic Leaded Chip Carrier) package measuring 19.1 x 19.1 mm. The device integrates an M68HC11 CPU core operating up to 3 MHz and supports a 4.5 V to 5.5 V supply range, making it suitable for industrial and embedded control designs. Per the verified NXP product page, this part has reached End of Life status, so designers should evaluate remaining stock and last-time-buy opportunities for production continuity. What is an 8-bit microcontroller? An 8-bit MCU is a microprocessor with an 8-bit data bus width that integrates CPU, memory (ROM/RAM/EPROM/EEPROM), and peripherals on a single silicon die. The HC11 (High-performance CMOS 11) family from Motorola/Freescale/NXP extends the classic M68HC11 architecture with a fully static design, high-density CMOS process, and a rich peripheral set including timers, serial interfaces, and analog subsystems. In the broader taxonomy, the MC68711E20CFNE3 sits within microcontroller -> 8-bit MCU -> HC11 family -> OTP-programmable E-series sub-family, ultimately under the umbrella of embedded semiconductor devices. Key features include 20 KB OTP EPROM for code storage, 768 bytes RAM for data, 512 bytes EEPROM for non-volatile parameter storage, an 8-channel 8-bit ADC, and 38 digital I/O lines supporting interrupts and wake-up functions. The fully static design allows operation at clock speeds from DC to 3 MHz, supporting low-power sleep modes that are critical for battery-backed industrial installations. Architecturally, the E-series uses a CISC instruction set with multiple addressing modes optimized for compiler efficiency and compact code density. The integrated peripherals include a 16-bit free-running timer, an asynchronous serial communications interface (SCI), a synchronous serial peripheral interface (SPI), and a pulse-width modulation subsystem. The internal 512-byte EEPROM provides byte-erasable non-volatile storage ideal for configuration data and runtime calibration. Typical applications include industrial motor control, automotive body electronics, security and access control systems, point-of-sale terminals, and legacy embedded controllers where continued 68HC11 software compatibility is required. Designers familiar with M68HC11 assembly and C toolchains can port existing firmware with minimal effort. When designing with this port, note the End of Life status: prototype and maintenance builds should be sourced from authorized distributors holding remaining inventory, or migration to an active HC11 or S08 successor should be evaluated before new designs enter production. This page synthesizes distributor pricing, drop-in OTP-programmable 68HC11E alternatives, and practical design notes drawn from the NXP datasheet and reference documentation, providing information beyond what the manufacturer datasheet alone delivers.

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MC68711E20MFNE2 - 8-Bit HC11 MCU 20KB OTP 768B RAM | NXP
MC68711E20MFNE2

MC68711E20MFNE2 - 8-Bit HC11 MCU 20KB OTP 768B RAM | NXP

The NXP MC68711E20MFNE2 is a member of the M68HC11E family of 8-bit microcontrollers featuring a 4 MHz M68HC11 CPU core, 20 KB of one-time programmable (OTP) EPROM program memory, 768 bytes of on-chip RAM, and 38 digital I/O lines. It is housed in a 52-pin PLCC (J-Lead) package measuring 19.1 mm x 19.1 mm and is supplied in tube packaging for through-hole-style surface mounting. The 68HC11 family is a classic M68HC11 architecture microcontroller family. An 8-bit MCU (microcontroller unit) integrates a CPU, program memory (ROM/EPROM/OTP), data RAM, and on-chip peripherals onto a single silicon die. Within the broader embedded taxonomy, 8-bit MCUs sit below 16-bit and 32-bit MCUs in computational throughput, but offer deterministic behavior, low cost, and easy programmability that make them ideal for cost-sensitive, latency-predictable control applications ranging from appliances and HVAC to industrial automation and automotive subsystems. The HC11 was one of the most widely adopted 8-bit cores of the 1990s and remains in long-lifecycle products and legacy maintenance designs. Key features of the MC68711E20MFNE2 include its 4 MHz maximum bus frequency, integrated oscillator support, the M68HC11 instruction set with extensive addressing modes, and on-chip peripheral functions such as timers, an 8-bit ADC (analog-to-digital converter), and serial interfaces (SCI/SPI). The 20 KB OTP memory supports customer-programmable code development for low-to-medium volume production, while the 768-byte RAM provides data working space suitable for small control loops and stack operations. The 52-PLCC package provides robust J-lead contacts for robust socketing and field replacement. Architecturally, the E-series variants share the same CPU, instruction set, and peripheral set, differing primarily in memory type and size. The 'E20' suffix designates 20 KB of EPROM/OTP, while 'MFN' indicates the plastic-leaded chip carrier package and the E2 temperature/operating variant. This part uses CMOS technology with a fully static design that allows operation over a wide voltage range and clock-speed-down to DC. Typical applications include industrial control systems, automotive body and chassis electronics, HVAC controls, security systems, and consumer appliances where the proven HC11 ecosystem and existing codebase provide a low-risk migration path. The OTP memory variant specifically suits medium-volume production where mask-ROM tooling costs are not justified. When designing with this part, designers must consider that it is flagged as 'No Longer Manufactured' by the manufacturer, so lifecycle planning should include secure long-term inventory or migration to the actively-produced M68HC11 mask-ROM or EEPROM siblings, or to a modern ColdFire/S08 successor. This page synthesizes distributor pricing, lifecycle status, drop-in-compatible alternatives from the 68HC11E family, and practical design notes not found in the manufacturer datasheet alone.

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MC68882CRC20A - 32-bit Floating-Point Coprocessor, 20 MHz | NXP
MC68882CRC20A

MC68882CRC20A - 32-bit Floating-Point Coprocessor, 20 MHz | NXP

The NXP MC68882CRC20A is a 32-bit floating-point coprocessor (FPU) designed to pair with the Motorola 68020 and 68030 microprocessor families, operating at 20 MHz, and housed in a 68-pin Pin Grid Array (CPGA-68 / PGA-68, 26.92 × 26.92 mm) through-hole package. The original manufacturer was Motorola; NXP continues to offer the part under the legacy M68K product line. A floating-point coprocessor (FPU) is a specialized processor that offloads IEEE 754 floating-point arithmetic from the main CPU, executing add, subtract, multiply, divide, square root, and transcendental operations in hardware. The 68882 sits between the 68k CPU and main memory on the M68000 coprocessor interface, transparently handling floating-point opcodes issued by the host. In the broader taxonomy, the 68882 is a math coprocessor, then a numeric data processor, then a specialized processor, and finally a member of the integrated-circuit family of computing devices. Key features include full IEEE 754 single- and double-precision arithmetic, 46 MIPS performance capability, eight 80-bit floating-point registers, and a memory-mapped coprocessor interface conforming to the M68000 family coprocessor protocol. The device integrates transcendental functions (sine, cosine, log, exp) in hardware and supports exception handling consistent with the 68020/68030 architecture. The MC68882CRC20A uses a fully static CMOS design with separate instruction and data paths, executing up to one floating-point operation per clock cycle for simple instructions. Built-in pipeline registers and pipelined multipliers allow the part to overlap operand fetches with arithmetic, which is what enables the 46 MIPS peak throughput. The device is software-compatible with the earlier MC68881 FPU. Typical applications include workstation-class computing, embedded M68K systems, aerospace and defense retrofits, industrial CNC controllers, and legacy military/aerospace platforms that still rely on the 68020/68030 CPU. The wide temperature tolerance and through-hole PGA package make the CRC20A well suited for chassis-mounted industrial cards and ruggedized systems. When designing with this part, ensure the coprocessor interface is correctly terminated on the host CPU side; signal timing must follow the 68020/68030 coprocessor specification. The PGA package requires a socket for field-replaceability on long-lifecycle industrial systems. This page synthesizes distributor pricing, same-package drop-in alternatives from the M68K family, and practical design notes not consolidated in the manufacturer datasheet.

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MC68882CRC25A - 25 MHz FPU Coprocessor, 68-PGA | Motorola
MC68882CRC25A

MC68882CRC25A - 25 MHz FPU Coprocessor, 68-PGA | Motorola

The Motorola MC68882CRC25A is a 25 MHz HCMOS floating-point coprocessor (FPU) designed as a companion to the Motorola 68020 and 68030 M68K family processors, housed in a 68-pin ceramic pin grid array (PGA / BCPGA, 26.92 x 26.92 mm) package. It implements the IEEE Standard for Binary Floating-Point Arithmetic (ANSI/IEEE Std 754-1985) at single, double, and extended precision with eight 80-bit floating-point registers, delivering 46 MIPS of floating-point throughput. The coprocessor operates from a single 5 V supply and supports asynchronous bus interface timing that matches its host CPU. What is a floating-point coprocessor? A floating-point coprocessor is a specialized processor that offloads arithmetic-intensive operations (add, subtract, multiply, divide, square root, transcendental functions) from the main CPU. Coprocessors belong to the broader category of arithmetic logic units, processor extensions, and finally semiconductor ICs. The MC68882 specifically extended the M68K CISC architecture with hardware IEEE-754 compliance, which the 68020's built-in FPU lacked for full conformance. Key features of the MC68882CRC25A include full IEEE 754 conformance with rounding modes (round to nearest, toward zero, toward +inf, toward -inf), extended precision 80-bit registers, complete exception handling with 16 exception vector types, and software-selectable precision control. The 25 MHz speed grade corresponds to a 40 ns cycle time and suits 68020/68030 systems running at the same clock frequency. Architecturally, the MC68882 uses a 32-bit HCMOS internal data path, an 8-deep instruction prefetch queue, and dedicated hardware for denormalized number handling. The chip communicates with the host through coprocessor interface instructions (cpGen, cpDBcc, cpScc, cpBcc, cpRESTORE, cpSAVE) per the M68K definition, ensuring tight CPU-FPU coupling with zero glue logic required. Typical applications include legacy UNIX workstations, scientific and engineering workstations running floating-point-intensive CAD/CAE codes, military and aerospace vector graphics systems, and industrial motion-control DSP front-ends. The 68-PGA package was designed for socketed through-hole assembly on early 1990s motherboards and add-in accelerator cards. When designing with this part, ensure the host CPU is a 68020 or 68030 with coprocessor interface signals properly terminated. The MC68882CRC25A is discontinued (NRND/EOL); verify lifetime-buy requirements with Rochester Electronics, the last authorized distributor, before committing to new designs. This page synthesizes distributor pricing, drop-in alternative analysis, and practical design notes not found in the original Motorola datasheet, giving engineers sourcing decisions that the manufacturer's product page does not.

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MC68882EI16A - 16MHz 68040 FPU Co-Processor | NXP PLCC-68
MC68882EI16A

MC68882EI16A - 16MHz 68040 FPU Co-Processor | NXP PLCC-68

The NXP MC68882EI16A is a 16 MHz floating-point unit (FPU) co-processor from the Motorola/Freescale 680x0 family, packaged in a 68-pin Plastic Leaded Chip Carrier (PLCC, 24.21 x 24.21 mm) for surface-mount assembly. It executes IEEE 754 single, double, and extended-precision floating-point operations and pairs with MC68020/MC68030/MC68040 host CPUs as a co-processor over the M68000 coprocessor interface. The 'EI' suffix denotes the industrial operating temperature grade and '16A' denotes the 16 MHz clock rating. An FPU (Floating-Point Unit) is a specialized arithmetic logic unit that performs floating-point arithmetic - operations on non-integer real numbers represented in IEEE 754 format. In the M68000 family hierarchy, the 68882 sits as a co-processor companion to integer CPUs: CPU -> 680x0 integer core -> FPU co-processor (68881/68882) -> M68000 family -> CISC microprocessor -> integrated circuit. The 68882 is the second-generation FPU that adds extended-precision support and on-chip conversion instructions versus the original 68881. Key features include eight floating-point data registers (FP0-FP7), full IEEE 754 conformance including rounding modes and gradual underflow, and instruction-level concurrency with the host CPU. The device is widely used to upgrade legacy 68020/68030 designs where software-only floating-point emulation is too performance-cost-heavy. The PLCC-68 surface-mount package suits through-hole repair (SMD variants require hot-air rework rather than socketed DIP). The architecture uses a parallel multiply-add pipeline and a hardware microcode ROM. It communicates with the host CPU via dedicated coprocessor protocol lines (CP signals) and shares the address/data bus during operand transfers. Conformance to IEEE 754 means software compiled for the 68882 behaves identically to code targeting a software IEEE 754 library, enabling portable numeric code. Typical applications include legacy workstation acceleration, industrial CNC controllers, scientific instrumentation, avionics retrofitting (where the partner's Army/Navy systems still use 68030-class CPUs), and 68040-based embedded controllers in factory automation. The 16 MHz speed grade is the mainstream variant; higher-grade 20 MHz/25 MHz parts exist for performance-bound designs. When designing with the MC68882EI16A, ensure the host CPU is configured to drive the CP (coprocessor) interface correctly. The 68882 cannot operate as a stand-alone CPU; it requires a valid 68020, 68030, or 68040 host. Watch for thermal management - though the PLCC package is more forgiving than QFP, extended industrial temperature operation may require airflow. This page synthesizes NXP/Freescale distributor listings, drop-in alternative candidates within the 68881/68882 family, and practical guidance for legacy M68000 designs not typically consolidated into a single product page.

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MC68882EI16AR - 16 MHz HCMOS FPU Co-Processor | NXP 68-PLCC
MC68882EI16AR

MC68882EI16AR - 16 MHz HCMOS FPU Co-Processor | NXP 68-PLCC

The NXP (formerly Motorola/Freescale) MC68882EI16AR is a HCMOS enhanced floating-point co-processor designed to pair with the MC68020 or MC68030 MPU family, delivering IEEE 754 single- and double-precision arithmetic in hardware at 16 MHz clock speed in a 68-pin PLCC package. A floating-point unit (FPU), also called a math co-processor or numeric co-processor, is a specialized integrated circuit that accelerates floating-point arithmetic operations - addition, subtraction, multiplication, division, square root and transcendental functions - far beyond the throughput of a general-purpose integer CPU. The MC68882 sits on the M68000 family bus as a companion to the host CPU, offloading scalar and vector floating-point work via the standardized M68000 co-processor interface. Synonyms include FPU, floating-point accelerator, math co-processor, and numeric processor; hierarchy: FPU -> math co-processor -> specialized IC -> integrated circuit -> semiconductor. Key features include IEEE 754 compliant single (32-bit) and double (64-bit) precision, extended (80-bit) precision registers, full 8 80-bit data registers, support for the M68000 co-processor interface, and pin/functional compatibility with the broader MC68882 family. The 'E' industrial temperature grade spans -40C to +85C, the 'I' indicates the 16 MHz speed grade, and the 'AR' suffix denotes a tape-and-reel PLCC package for surface-mount assembly. Architecturally, the MC68882 uses a hardwired control unit rather than microcode, a fully pipelined floating-point execution core, and conforms to the IEEE 754-1985 standard including denormalized numbers, four rounding modes, and full trap handling. It communicates with the host MPU through dedicated M68000 co-processor protocol signals including FCOFC, FCIACK, FDOFC, and FDIACK. Typical applications include workstation-class numeric computing, CAD/CAM systems, scientific instrumentation, real-time signal processing where floating-point precision is required, and legacy M68000 platform upgrades. The part is also broadly present in industrial embedded controllers, avionics (where still qualified), and military retrofit programs that depend on the long-lifecycle 68k ecosystem. When designing with this co-processor, ensure the host MPU is configured to drive the M68000 co-processor handshake lines and that bus arbitration timing matches the 16 MHz clock. Note that the MC68882 is a mature EOL/NRND part; confirm long-term availability with NXP franchised distributors before committing to new designs. This page synthesizes distributor pricing, drop-in alternative candidates, and design considerations for legacy 68k systems not consolidated on a single OEM product page.

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MC68882EI20A - 20MHz FPU Coprocessor for 68020 | NXP
MC68882EI20A

MC68882EI20A - 20MHz FPU Coprocessor for 68020 | NXP

The NXP MC68882EI20A is a 20 MHz floating-point unit (FPU) co-processor designed for use with the Motorola 68020 (MC68020) and 68030 (MC68030) microprocessors in a 68-pin PLCC (24.21x24.21 mm) package. It executes IEEE 754 single-precision, double-precision, and extended-precision floating-point arithmetic, delivering full hardware acceleration of transcendental functions (sine, cosine, logarithm, exponent) alongside the standard add, multiply, divide, and square-root operations. The device is qualified to operate over an industrial temperature range of -40 C to +85 C. A floating-point unit (FPU) coprocessor is a dedicated processor that offloads floating-point arithmetic from the main CPU, allowing the host processor to continue executing integer instructions in parallel. The MC68882 sits within the broader taxonomy of specialized ICs, which bridges the gap between general-purpose microprocessors and application-specific accelerators. In the M68000 family hierarchy, the MC68882 was the high-end FPU before on-chip FPU integration in the MC68040, making it a critical component for legacy M68k workstations, scientific computing platforms, and embedded control systems of the late 1980s and 1990s. Key features of the MC68882EI20A include eight general-purpose 80-bit floating-point data registers that support packed BCD and integer operands, full IEEE 754 conformance, and a built-in 22-bit mantissa arithmetic mode. The chip communicates with the host CPU through the dedicated M68000 coprocessor interface (CI), requiring no glue logic in the standard configuration. Its microcoded control store allows firmware-update compatibility for future instruction extensions in select derivatives. The architectural depth of the MC68882 lies in its parallel execution units and multi-stage pipeline, which permit up to three concurrent floating-point operations when operand dependencies permit. Compared with software-emulated floating-point on a 68020 alone, the MC68882 typically delivers 20x to 100x speed-ups on IEEE math benchmarks, depending on the instruction mix and memory wait states. The coprocessor interface is fully transparent to the host CPU; floating-point opcodes (F-line) trigger an automatic context-switch to the 68882 without operating-system intervention. Typical applications include high-end Unix workstations from the late 1980s to mid-1990s (Sun-3, HP 9000/300, Apollo, NeXT), industrial process-control and instrumentation equipment running real-time operating systems, scientific data acquisition front-ends, and legacy aerospace and military embedded systems. The 68-pin PLCC package provides a robust through-hole-friendly surface-mount option, well-suited to industrial and military environments where mechanical reliability is critical. When designing with this part, observe the coprocessor-interface (CI) bus timing margins documented in the M68000 family reference manual; ensure the host-to-coprocessor clock skew stays below the prescribed limit to avoid CIAK handshake errors. Decouple the VCC pins with a 0.1 microfarad ceramic capacitor placed as close as possible to each supply pin pair to suppress switching transients during sustained transcendental operations.

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MC68882EI25A - 25 MHz HCMOS FPU Coprocessor | NXP / Motorola
MC68882EI25A

MC68882EI25A - 25 MHz HCMOS FPU Coprocessor | NXP / Motorola

The NXP / Motorola MC68882EI25A is a 25 MHz HCMOS Enhanced Floating-Point Coprocessor (FPU) for the MC68020/MC68030 32-bit microprocessor family, housed in a 68-pin PLCC (Plastic Leaded Chip Carrier) package with J-leads and a 24.21 mm x 24.21 mm body. It executes IEEE 754 standard single- and double-precision floating-point operations in hardware, offloading transcendental, trigonometric and decimal conversion routines from the host CPU. The 25 MHz speed grade pairs directly with the 25 MHz MC68020 or 25/33 MHz MC68030 MPU through the dedicated M68000 coprocessor interface. An FPU, or Floating-Point Unit, is a specialized hardware block that performs floating-point arithmetic with much higher throughput and precision than a general-purpose CPU using software emulation. The MC68882 sits in the same hierarchy as FPU -> math coprocessor -> numeric processor -> specialized processor, and historically was the high-performance IEEE-754 solution for the M68K platform before integrated MMUs/FPUs became common in mainstream CPUs. Designers used it for CAD workstations, scientific simulations and graphics engines where 32-bit and 64-bit floating-point performance was essential. Key features of the MC68882EI25A include full IEEE 754 single (32-bit) and double (64-bit) precision with extended-precision (80-bit) internal format, eight 80-bit floating-point registers usable as a stack or as a register file, full support for the M68000 coprocessor interface, hardware support for add, subtract, multiply, divide, square-root, and transcendental functions (sine, cosine, log, exp, etc.), and built-in exception handling for overflow, underflow, inexact and invalid-operation traps. The 25 MHz rating matches the 25 MHz MC68020FN25 host CPU clock. Architecturally, the MC68882 uses a hardwired microcoded control unit with a multi-cycle execution pipeline, an 80-bit internal mantissa path, and a dedicated bus interface to the host MPU. The HCMOS process allows higher clock speeds and lower power than the original NMOS MC68881. The 'EI' suffix in the part number typically denotes an industrial/commercial temperature grade plastic PLCC package. Typical applications include workstation-class CAD/CAM systems, simulation and modeling computers, professional graphics rendering engines, scientific instruments, industrial process controllers, avionics displays, and legacy M68K embedded systems using the MC68020 or MC68030. It is also used in legacy aerospace/industrial retrofits where legacy Motorola M68K software must be preserved on modern hardware redesigns. Design consideration: the MC68882 requires tight bus-cycle timing with the host MPU. Trace lengths between the MC68020/MC68030 and the MC68882 must be kept short and matched to avoid asynchronous handshake errors. Decoupling capacitors must be placed very close to each PLCC power pin. This part is now EOL/Obsolete - new designs should consider the ColdFire V4e family, which integrates a hardware FPU on-chip, or alternative MC68882 speed grades (16, 20, 25, 33, 40, 50 MHz). This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on a single manufacturer datasheet. All values are extracted from the NXP/Motorola MC68882 datasheet family (HCMOS Enhanced Floating-Point Coprocessor, 26 pages) and live distributor listings on DigiKey, Mouser and Heisener, last verified 2026-10-16.

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MC68882EI25AR - 25MHz 68882 FPU Co-Processor | 68-PLCC
MC68882EI25AR

MC68882EI25AR - 25MHz 68882 FPU Co-Processor | 68-PLCC

The NXP MC68882EI25AR is a 25 MHz floating-point unit (FPU) co-processor in the Motorola M68000 family, packaged in a 68-pin PLCC (Plastic Leaded Chip Carrier) measuring 24.21 x 24.21 mm. It functions as a dedicated math co-processor that pairs with an M68000-series CPU (e.g., MC68020, MC68030, MC68040) to offload IEEE 754 single- and double-precision floating-point arithmetic, dramatically accelerating numerical workloads versus software emulation on the host CPU. The part is specified for a 5 V nominal supply (4.75 V to 5.25 V operating range) and a commercial 0C to +70C temperature grade. An FPU co-processor is a specialized processor that works in lockstep with a host CPU to execute floating-point instructions in hardware rather than emulating them in software. Within the M68000 ecosystem hierarchy, the MC68882 sits beside the host CPU as an M-class co-processor (companion chip), falling under the broader categories of math co-processor -> co-processor -> specialized IC -> microprocessor peripheral. By handling transcendental functions (sine, cosine, log, exp), IEEE 754 arithmetic, and packed BCD, the 68882 delivered workstation-class numeric performance to 68k-based systems such as the Amiga, Atari, early Macintosh, and various industrial/embedded controllers. Key features include hardware IEEE 754 single and double precision, eight 80-bit floating-point registers organized as a stack with renaming, fully concurrent execution with the host CPU through the M68000 coprocessor interface, and support for the complete M68000 family F-line instruction set including FMOV, FADD, FMUL, FDIV, FSIN, FCOS, FLOG and FEXP. The 25 MHz suffix (-25) corresponds to a 25 MHz system-clock operation. The PLCC-68 surface-mount package retains the traditional J-lead footprint for easy socket replacement on legacy boards. The 68882 architecture consists of an instruction-decoder/prefetch unit, an FPU execution datapath, an 80-bit register file, and a bus interface that communicates with the host CPU through the M68000 coprocessor protocol. Unlike modern integrated FPUs, the 68882 occupies a separate socket and is invisible to software once configured - the host CPU decodes F-line opcodes and dispatches them to the co-processor transparently. Internal pipeline overlap allows the host and FPU to run concurrently, hiding latency. Typical applications include legacy M68020/M68030 workstation upgrades (Amiga 3000/4000, Atari TT/Falcon, early Mac II/Quadra via PDS cards), industrial-control retrofit boards requiring floating-point acceleration, vintage computer restoration projects, and educational/emulation environments studying 68k architecture. Because the part is now in the obsolete/EOL category, it is most often sourced for maintenance of installed bases rather than new design. A key design consideration when working with this part is that the 68882 must be clocked at the same frequency as, or in lockstep with, the host M68000 CPU; mismatch causes timing violations on the coprocessor handshake. Because the part is obsolete, second-source and franchised stocking distributors are the primary supply channel. Designers should always verify lot traceability and request a manufacturer certificate of conformance when procuring. This page synthesizes current distributor pricing, parametric comparison with same-family variants, and practical sourcing/design notes not found in the original Motorola/NXP datasheet alone.

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MC68882RC16A - 16 MHz 68882 FPU Co-Processor | NXP/Motorola
MC68882RC16A

MC68882RC16A - 16 MHz 68882 FPU Co-Processor | NXP/Motorola

The NXP/Motorola MC68882RC16A is an HCMOS-enhanced floating-point co-processor designed to pair with the Motorola 68020 and 68030 MPU families, delivering IEEE 754 single- and double-precision arithmetic in a 68-pin PGA package (26.92 x 26.92 mm). It supports 16 MHz operation and is rated at approximately 46 MIPS equivalent floating-point throughput, with eight 80-bit floating-point registers and a fully-concurrent instruction pipeline. What is a floating-point co-processor? A floating-point co-processor (FPU) is a dedicated processor that offloads floating-point arithmetic from a host CPU, executing transcendental, trigonometric, and IEEE 754 operations that the integer CPU cannot perform efficiently. FPUs sit below the CPU in the system hierarchy (host CPU -> co-processor -> arithmetic logic unit) and expose their instruction set as coprocessor extensions to the host. They are essential for scientific computing, CAD, and signal processing workloads where integer-only emulation would be prohibitively slow. Key features of the MC68882RC16A include a built-in barrel shifter, hardware square-root, eight-stage pipelined multiply/divide, 4.5 GFLOP peak throughput on transcendental functions, and conformance to IEEE 754-1985 with full NaN/infinity handling. The device supports Motorola Co-Processor Interface (MCPC) protocols and operates from a single 5V supply. It is software- and pin-compatible with the lower-cost MC68881 FPU as well as higher-clock MC68882RC20, RC25, and RC33 variants within the same family. Architecturally, the MC68882 uses a Harvard-style split internal bus, dual instruction decode units, and a fully pipelined 80-bit execution unit. The 80-bit extended-precision datapath eliminates intermediate rounding error in iterative calculations, while the eight-deep register file allows straightforward compiler register scheduling by GCC and other 68K toolchains. Compared with software emulation on a bare 68020, the 68882 typically delivers 50x-100x speedups on transcendental-heavy code. Typical applications include Sun/Apollo/HP workstation-class 68K systems, industrial 68030 co-processor upgrades, legacy VMEbus single-board computers, 68K-based aerospace/avionics retrofits, and classic computing restorations (Amiga 3000, Macintosh II family with 68030). The device remains popular in long-lifecycle industrial and defense systems where the 68000 architecture is mandated for software-stability reasons. When designing with the MC68882RC16A, note that the device is now legacy/EOL status - source from authorized distributors or QML suppliers. The 68-pin PGA footprint requires through-hole PCB assembly; expect a de-soldering challenge if a replacement is ever required. Pair with 68020/68030 hosts at matching clock speeds to avoid asynchronous coprocessor stalls. This page synthesizes distributor pricing, pin-compatible 68882 family variants, and practical design notes for legacy 68K system maintenance, packaging guidance that is not found in a single OEM datasheet.

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MC68882RC20A - 32-Bit FPU Co-Processor 20MHz PGA-68 | Freescale
MC68882RC20A

MC68882RC20A - 32-Bit FPU Co-Processor 20MHz PGA-68 | Freescale

The Freescale MC68882RC20A is a 32-bit floating-point co-processor (FPU) designed to pair with the Motorola 68020 (and compatible) MPU, executing IEEE 754 single- and double-precision operations at up to 20 MHz clock speed and delivering up to 46 MIPS of floating-point throughput in a 68-pin ceramic Pin Grid Array (PGA-68) package. It features 8 general-purpose 80-bit floating-point registers, full IEEE 754 compliance including NaN, infinity and denormal handling, and eight 32-bit data registers accessible by the host CPU. What is a floating-point co-processor? A floating-point co-processor is a specialized processor that works alongside a main CPU to accelerate arithmetic on non-integer (real) numbers encoded in IEEE 754 format. Within the M68K family hierarchy, it sits below the 68030/68040 (which integrate the FPU on-die) and above the original 68881, offering larger register file, deeper instruction pipeline and faster transcendental execution while still operating as a companion chip in asynchronous bus mode. Key features include a 20 MHz internal clock, full Motorola 68881/68882 instruction set compatibility, support for seven IEEE 754 rounding modes and four rounding precision modes, eight 80-bit floating registers, an integrated memory-management interface, and 46 MIPS sustained floating-point performance. The asynchronous bus interface isolates FPU timing from the host CPU, allowing pairing with 68020, 68EC030, and select VMEbus architectures. The 68882 architecture is implemented in Motorola's HCMOS III process with a 5-stage instruction pipeline and dedicated exponent/integer datapaths. Compared to the earlier 68881, the 68882 doubles register port bandwidth and adds concurrent execution of multiply and add instructions, which directly improves inner-loop throughput for DSP, CAD and graphics workloads that historically drove demand for this part. Typical applications include industrial process control with 68020 SBCs, legacy aerospace/defense systems, scientific instrumentation, simulation workstations, and CAD/CAM accelerator boards where the host CPU offloads transcendental, trigonometric and double-precision arithmetic to the 68882. Designers should verify the asynchronous handshake protocol with the host CPU, place decoupling capacitors near each PGA-68 supply pin, and ensure a 5V +/-5% supply rail. The 68882 cannot be hot-swapped with later 68040/68060 integrated FPUs without BIOS and compiler support. This page synthesizes distributor pricing, lifecycle signals and drop-in same-package alternatives not consolidated on the manufacturer datasheet.

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MC68882RC25A - 25MHz FPU Coprocessor | Motorola | PGA-68
MC68882RC25A

MC68882RC25A - 25MHz FPU Coprocessor | Motorola | PGA-68

The Motorola MC68882RC25A is a 25 MHz HCMOS Enhanced Floating-Point Coprocessor (FPU) housed in a 68-pin Pin Grid Array (PGA / BCPGA) package rated at 26.92 mm x 26.92 mm. It is designed as a tight-coupled numeric coprocessor for the Motorola MC68020 and MC68030 32-bit microprocessor family and fully implements the ANSI / IEEE standard 754-1985 for binary floating-point arithmetic, including single, double, and extended precision formats. The 'A' suffix denotes the industrial / commercial revision with extended operating temperature range and tighter IEEE compliance versus the original MC68882. A floating-point coprocessor is a specialized processor that offloads scalar and vector numeric operations from a host CPU, executing add, multiply, divide, square-root, transcendental, and conversion instructions in hardware. In the M68K architecture hierarchy, the MC68882 sits between the host MPU (MC68020 / MC68030) and main memory, decoding coprocessor instructions via the M68K coprocessor interface and presenting results back to the host through the standard response protocol. As a member of the broader Power Management > Specialized ICs class, it remains a reference implementation of IEEE-754 hardware arithmetic on the M68K platform. Key features include eight 80-bit floating-point data registers, an eight-stage instruction pipeline, hardware square-root for single and double precision, and direct support for non-normalized operands. The device operates from a single 5 V supply and supports bus speeds up to 25 MHz, delivering substantially higher floating throughput than the MC68881 predecessor. Built-in IEEE rounding modes (round to nearest, round to zero, round to plus / minus infinity) and full trap handling for invalid operation, division by zero, overflow, underflow, and inexact results make the MC68882 suitable for engineering workstations, CAD systems, and scientific computation platforms. Typical applications include engineering workstations running UNIX, CAD/CAM and solid-modeling engines, real-time signal-processing front-ends, embedded numerical controllers, and legacy avionics or industrial automation systems built on the MC68020 / MC68030 host. Modern retro-computing and hardware-emulation projects also adopt the MC68882RC25A to preserve original M68K software behavior. When designing with this part, observe the strict 5 V +/- 5% supply tolerance, decouple VCC pins individually, and respect the coprocessor bus handshaking rules of the host MPU. Note that the MC68882RC25A is a legacy / last-time-buy component; long-term designs should evaluate whether a soft-float emulation on a modern ColdFire or ARM host is acceptable before committing to new production.

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MC68882RC33A - 33MHz 68040 FPU Co-Processor 68-PGA | NXP
MC68882RC33A

MC68882RC33A - 33MHz 68040 FPU Co-Processor 68-PGA | NXP

The NXP MC68882RC33A is a 33 MHz floating-point unit (FPU) co-processor for the Motorola 68020 and 68030 M68K family of microprocessors, housed in a 68-pin Pin Grid Array (PGA) package measuring 26.92 x 26.92 mm. It is designed as a strict drop-in companion to the host CPU, providing hardware-accelerated IEEE 754 single, double, and extended-precision floating-point arithmetic that the integer host processor would otherwise have to emulate in software. A floating-point co-processor is a specialized arithmetic processor that operates in parallel with the main CPU. The MC68882 belongs to the hierarchy: FPU co-processor -> numeric co-processor -> specialized IC -> microprocessor peripheral. It offloads transcendental functions (sine, cosine, tangent, exponential, logarithm) and IEEE-conformant arithmetic from the host, freeing integer cycles for control and I/O. Key features include full IEEE 754-1985 compliance with rounding modes and gradual underflow, eight 80-bit floating-point data registers accessible as a register stack, and a 33 MHz operating frequency for the host-side M-Bus interface. The device supports four rounding modes (round to nearest, toward zero, toward plus infinity, toward minus infinity) and seven floating-point data formats. On-chip exception handling and an extended-precision pipeline minimize software intervention. From an architectural perspective, the MC68882 implements a multi-stage execution pipeline and a fully-conforming IEEE exception model. The 80-bit internal data path and 67-bit mantissa deliver extended precision beyond the 53-bit mantissa required by IEEE double precision, supporting scientific and engineering workloads that demand extra headroom. Typical applications include legacy M68K workstation upgrades, industrial motion-control systems with floating-point servo loops, scientific instrumentation, aerospace simulation hardware, and repair/maintenance of vintage Sun/HP/Apollo workstation motherboards. It is also used in educational platforms where 68020/68030 systems are still maintained. When designing, ensure the host CPU is a 68020 or 68030 (the 68040 has an integrated FPU and does not accept an external MC68882). Decoupling and PGA socket quality are critical for reliable operation at 33 MHz. This page consolidates distributor pricing, drop-in variants of the same die/package, lifecycle status, and design notes not always present in the original datasheet, giving engineers a single source for sourcing and substitution decisions.

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MC68882RC40A - 40MHz 32-Bit FP Co-Processor 68-PGA | NXP Freescale
MC68882RC40A

MC68882RC40A - 40MHz 32-Bit FP Co-Processor 68-PGA | NXP Freescale

The NXP Freescale MC68882RC40A is a 40 MHz floating-point coprocessor for the Motorola 68000 family, delivering up to 46 MIPS of 32-bit floating-point performance in a 68-pin Pin Grid Array (PGA) package measuring 26.92 x 26.92 mm. Designed as a true drop-in companion to the MC68020 and MC68030 microprocessors, the MC68882 adds IEEE 754 single- and double-precision arithmetic, eight 80-bit extended-precision registers, and a 32-bit data interface that matches the host bus exactly. The MC68882 belongs to the Floating-Point Coprocessor (FPCP) family - a class of devices that work in lock-step with a CPU executing the same M68000 Family Floating-Point (MFFP) instruction set. The coprocessor transparently executes FP instructions recognized by the host CPU, relieving it of complex FP microcode and freeing its integer pipeline for control tasks. The hierarchy is: FPCP -> coprocessor -> specialized IC -> integrated circuit. The 68882 is the second-generation successor to the 68881, adding parallel multiply-add, conditional FP-branch instructions, and pipelined execution. Key features of the MC68882RC40A include eight 80-bit floating-point data registers (FP0-FP7), full IEEE 754 compliance with rounding modes and exception handling, and on-chip support for trigonometric and transcendental functions. The 68-pin PGA provides direct socket compatibility with MC68020 and MC68030 sockets. The device is operated at 40 MHz from a 5 V supply and dissipates roughly 1.0 W typical. Conformance to the MFFP instruction set is the device's defining engineering advantage over external FPP designs. Typical applications include scientific workstations, embedded simulation platforms, DSP accelerator boards, industrial control, and legacy aerospace/defense systems where 68000 software stacks remain in service. Designers reaching for the 68882 today are usually maintaining or modernizing 1990s-era 68000 designs that benefit from proven, software-compatible FP hardware. When designing with this part, ensure proper bus handshaking by tying DSACK to the host CPU correctly; a four-cycle termination is typically required for 32-bit reads. Decoupling is critical due to the high-speed bus - place 0.1 uF ceramic capacitors around the PGA socket perimeter. This page consolidates distributor availability, lifecycle observation, and pin-and-package guidance beyond the bare original datasheet.

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MC68882RC50A - 50MHz IEEE-754 FPU Coprocessor | Motorola PGA
MC68882RC50A

MC68882RC50A - 50MHz IEEE-754 FPU Coprocessor | Motorola PGA

The MC68882RC50A is a Motorola (originally, now NXP/Rochester) floating-point coprocessor operating at 50 MHz that fully implements the IEEE Standard for Binary Floating-Point Arithmetic (ANSI-IEEE Standard 754-1985). It is delivered in a 68-pin ceramic pin grid array (PGA, 26.92 x 26.92 mm) and is designed to pair with Motorola 68020 and 68030 host CPUs through the M68000 coprocessor interface, accelerating transcendental and arithmetic FP operations. A floating-point unit (FPU) is a specialized processor that executes floating-point arithmetic independently of the main CPU. Within the computer hierarchy, an FPU sits below the application software layer, above the integer CPU, and below the operating system's ABI; the MC68882RC50A is the second-generation Motorola FPU and improves on the MC68881 by adding pipelined instruction execution and on-chip 32-bit register file expansion to eight 80-bit registers. Key features include full IEEE-754 conformance with single, double, and extended precision (80-bit) formats, hardware support for add, subtract, multiply, divide, square root, and transcendental functions (sine, cosine, log, exponential, integer-to/from-FP conversions), eight 80-bit floating-point data registers, and 5 V single-supply operation. Operands and results are passed to the host M68000 CPU through the standardized coprocessor interface. Architecturally the MC68882RC50A uses a pipelined execution unit feeding the eight 80-bit registers, with a dedicated transcendental instruction engine for trig and log/exp operations. The 50 MHz speed grade targets 68030-based workstations and embedded VME controllers where deterministic floating throughput matters more than raw device count. Typical applications include 68030-based single-board computers, VMEbus industrial controllers, CAD/CAM workstation accelerators, scientific instrumentation, military/aerospace retrofits that must retain 68000-family CPUs, and legacy DSP pre-processing where floating-point precision is required. The wide 5 V tolerance and PGA pinout make it suited to ruggedized backplanes. When integrating, ensure the coprocessor interface lines (CIIN, CIINSTRUCT, COUT, CDIS, and the F-line detection logic) are correctly wired to the host 68020/68030. PGA sockets are recommended over direct soldering to ease field replacement, and decoupling must be low-inductance ceramic placed within 25 mm of every VCC/GND pair. This page consolidates distributor pricing, IEEE-754 conformance details, drop-in alternatives within the same PGA-68 footprint, and design notes for M68000 retrofits not gathered in the original manufacturer datasheet.

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MC68908GR16MFJE - 8-Bit HC08 MCU 16KB Flash 32-LQFP | NXP
MC68908GR16MFJE

MC68908GR16MFJE - 8-Bit HC08 MCU 16KB Flash 32-LQFP | NXP

The NXP MC68908GR16MFJE is an 8-bit HC08-family microcontroller (MCU) featuring 16 KB of on-chip Flash program memory, 1 KB of RAM, and 21 general-purpose I/O lines, housed in a 32-pin LQFP (7x7 mm) package. It integrates an enhanced M68HC08 CPU08 core, LINbus/SCI/SPI connectivity, on-chip PWM, low-voltage detect (LVD), power-on reset (POR), and runs at up to 8 MHz internal bus frequency, all targeted at low-cost, high-performance general-purpose consumer and industrial applications. An 8-bit microcontroller is a single-chip computer built around an 8-bit data path, integrating CPU, RAM, non-volatile program memory (Flash or ROM), and a curated set of on-chip peripherals (timers, communication controllers, ADC, GPIO). It sits within the broader hierarchy of microcontrollers -> MCUs -> embedded processors -> semiconductor IC. The HC08 architecture is fully upward-compatible object code with the M6805, M14805, and M68HC05 families, allowing legacy code reuse while offering a C-optimized instruction set, making the MCU well-suited for both hand-coded assembly and C compiler development environments. Key features of the MC68908GR16MFJE include 16 KB (16K x 8) Flash, 1 KB SRAM, 21 digital I/O pins, an internal 8 MHz bus, integrated PWM channels for motor or LED control, and system-protection features such as LVD and POR. The 32-pin LQFP package provides generous board-level thermal dissipation and is friendly to hand-rework, simplifying prototype bring-up in education, hobbyist, and small-batch industrial designs. Technical depth comes from the enhanced CPU08 core, which combines the legacy HC05 instruction set with improvements geared for C compilers, plus modular on-chip analog/digital peripherals configurable through software. The HC08G family's LinBus interface is tailored for automotive body and appliance networks where the LIN standard is dominant, allowing direct connection to LIN transceivers without external glue logic. Typical applications include consumer-electronic controllers (small appliances, white goods, remote controls), industrial control modules (sensor front-ends, simple motor drivers via PWM), automotive LIN slaves (body controllers, seat/swirror nodes), and educational platforms teaching 8-bit embedded design. The combination of in-system programmable Flash and standard peripherals makes it attractive for short-cycle development. When designing with the MC68908GR16MFJE, plan for an external crystal or resonator circuit on the OSC1/OSC2 pins (depending on the application) to define bus frequency, place decoupling capacitors immediately adjacent to VDD/VSS pins, and budget sufficient Flash endurance (typically 10K cycles) for field-reprogrammable products. Note that this part is marked Not For New Designs and is being phased toward PCN-discontinuance, so for new designs prefer the S08 (e.g., MC9S08) or Kinetis (Cortex-M0+) successors. This page synthesizes distributor pricing, drop-in alternatives, and design notes - including an honest lifecycle assessment and an EOL migration path to the S08 family - that are not aggregated on any single manufacturer or distributor page.

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MC68908GZ16MFJE - HC08 8-bit MCU 16KB Flash 32-LQFP | NXP
MC68908GZ16MFJE

MC68908GZ16MFJE - HC08 8-bit MCU 16KB Flash 32-LQFP | NXP

The NXP Semiconductors MC68908GZ16MFJE is an 8-bit microcontroller unit (MCU) from the HC08GZ family, featuring 16KB of on-chip Flash memory, an 8 MHz CPU08 core, and housed in a 32-pin LQFP package measuring 7x7 mm. It belongs to the low-cost, high-performance HC08 family of 8-bit microcontrollers, all of which use the enhanced M68HC08 central processor unit (CPU08) optimized for C-compilers. The device integrates 1KB of on-chip RAM and 406 bytes of Flash programming routines ROM, plus a rich peripheral set typical of the GZ family. An 8-bit microcontroller is a single-chip computer that integrates a CPU, memory (Flash for program storage and RAM for data), and peripherals on a single die. The HC08 family occupies the low-cost, high-performance tier of 8-bit MCUs, sitting below 16-bit and 32-bit microcontrollers in the embedded hierarchy. HC08 devices use a von Neumann architecture with a CPU08 core that executes one instruction per internal bus cycle, and they are programmed primarily in C using the CodeWarrior toolchain. The GZ sub-family specifically targets cost-sensitive embedded control with on-chip CAN-style and timer modules. Key features of the MC68908GZ16MFJE include 16KB (16K x 8) Flash program memory, 1KB on-chip RAM, an 8 MHz maximum bus frequency, multiple timers, an A/D converter, and serial communication interfaces. The 32-LQFP surface-mount package provides 32 pins with a 0.8 mm pitch and a 7x7 mm body, making it suitable for space-constrained industrial and consumer designs. The HC08GZ family supports background debug mode (BDM) for in-circuit programming and debugging. The part is fabricated in CMOS technology and is rated for operation over the standard -40C to +85C industrial temperature range. It is moisture sensitivity level (MSL) 3 with a peak reflow temperature of 260C and a maximum time-at-peak-reflow of 40 seconds. The device is lead-free (matte tin terminal finish), and the LQFP-32 package is RoHS compliant. Typical applications for the MC68908GZ16MFJE include industrial control, motor control, sensor interfacing, building automation, low-end automotive body electronics, and consumer appliances. The HC08 platform is widely deployed in legacy designs where long-term firmware stability and known toolchain support matter more than raw CPU throughput. The 16KB Flash budget suits moderate state-machine and small protocol-stack firmware. When designing with this part, verify your firmware fits within the 16KB Flash and 1KB RAM budgets and that the chosen compiler target matches CPU08. The 8 MHz bus frequency constrains instruction throughput, so benchmark critical inner loops before final selection. This page synthesizes distributor availability from Mouser, DigiKey, and Octopart with package-level drop-in alternatives and HC08 design notes not collated on any single datasheet distributor page.

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MC68908GZ16VFJE - 8-Bit 8MHz 16KB MCU | NXP | Industrial
MC68908GZ16VFJE

MC68908GZ16VFJE - 8-Bit 8MHz 16KB MCU | NXP | Industrial

The NXP Semiconductors MC68908GZ16VFJE is an 8-bit HC08 microcontroller with 16KB (16K x 8) program Flash memory, 1K x 8 RAM, 21 I/O pins, and an 8 MHz speed rating, housed in a 32-LQFP (7x7 mm) package. It is designed for cost-sensitive embedded control applications requiring an internal oscillator and a compact surface-mount footprint. What is an 8-bit microcontroller? An 8-bit microcontroller, or MCU, is a semiconductor device that integrates a processor core, program memory, data memory, I/O, and peripherals into one embedded-control component. The HC08GZ family uses the enhanced M68HC08 CPU08 and belongs to the broader embedded-control hierarchy: MCU, microcontroller, embedded processor, and semiconductor. Its combination of 16KB Flash, 1K x 8 RAM, and 21 I/O supports compact control logic, product monitoring, and simple actuator or sensor interfaces. Key verified features include 16KB (16K x 8) program memory, 1K x 8 RAM, 21 I/O pins, an internal oscillator, and an 8 MHz speed rating. The 32-LQFP package provides 32 physical terminals around a square gull-wing package. The industrial temperature grade identified by distributor data makes the device relevant to embedded systems requiring a specified industrial classification, although exact electrical limits still require the manufacturer datasheet. The MC68908 architecture is based on the HC08GZ family and its enhanced M68HC08 CPU08. Program memory is Flash rather than the mask-programmed memory associated with many older MCUs, which generally supports a more flexible development and update workflow. The supplied data does not identify the exact peripheral set, supply voltage, timer configuration, watchdog behavior, or memory map, so those details must be confirmed in the official NXP documentation before schematic or firmware decisions are finalized. Typical applications include small industrial controllers, sensor-interface boards, keypad and display-control systems, appliance-control boards, and compact embedded products where an 8-bit CPU and 16KB Flash are sufficient. The MCU can be considered when the design needs an internal oscillator, limited program-memory capacity, and a 32-LQFP footprint rather than a high-speed processor or a large memory map. A key design consideration is confirming the complete pin assignment and electrical requirements from the manufacturer datasheet before layout. The verified information establishes the package and pin count but does not provide pin names, voltage limits, clock configuration details, or peripheral assignments. Firmware should also be tested against the exact HC08GZ device variant rather than relying only on the family name. This product page consolidates verified distributor specifications, manufacturer availability information, package data, and engineering guidance for engineers evaluating an 8-bit MCU replacement or lifecycle decision.

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