Интегральные схемы

Z86C9012FSC

Z86C9012FSC - 12MHz 8-Bit ROMless MCU | Zilog

Zilog Z86C9012FSC is an 8-bit Z8 ROMless microcontroller operating at 12 MHz in a 44-pin LQFP package measuring 10 mm by 10 mm. Its key characteristics include an 8-bit CPU core, ROMless architecture, commercial temperature grade, 5 V supply, and EBI/EMI connectivity support. The device is designed for embedded control systems that require external program and data memory while using a compact surface-mount package. A ROMless microcontroller is a semiconductor that contains the processor core and peripheral functions but requires external memory for application code and data. Within the embedded-control hierarchy, the Z86C9012FSC belongs to the 8-bit microcontroller class, combines an 8-bit CPU with external bus interfaces, and serves as the central control component in industrial, commercial, and instrumentation equipment. Unlike a device with embedded program memory, it allows firmware capacity to scale with an external memory device. The Z86C9012FSC operates at 12 MHz and is identified as an 8-bit ROMless MCU. Its 44-LQFP surface-mount package provides 44 external terminals and a 10 mm by 10 mm footprint. EBI/EMI connectivity expands the available external data-bus and memory-oriented interfaces, while the 5 V operating supply supports conventional industrial-control voltage levels. The commercial temperature designation makes the device appropriate for equipment operating within commercial environmental conditions. The Z8 CPU provides an 8-bit processing architecture suited to control loops, digital interfaces, and sequential logic rather than high-throughput computing. Because program storage is external, firmware deployment depends on the selected external memory device, bus configuration, and memory-map design. This separation can make board storage capacity independent of the MCU package and can support field-update architectures when the external memory interface is suitable. Typical uses include industrial controllers, instrument panels, keypad interfaces, embedded motor and process controls, and legacy peripheral-control systems. The 12 MHz operating rate supports deterministic tasks requiring regular sampling, protocol handling, and state-machine updates. EBI/EMI connectivity is particularly relevant to systems that need external code storage, data memory, or bus-connected peripherals. During schematic capture, treat the external memory bus and programming interface as central design areas. Preserve the manufacturer's recommended decoupling, oscillator, reset, and memory-bus routing, and verify all signal timing and drive requirements against the manufacturer datasheet. The ROMless architecture also requires a complete firmware and external-memory design before the circuit can operate as a standalone controller.

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Z86C9012PEG

Z86C9012PEG - 8-Bit 12MHz ROMless MCU | Zilog

The Zilog Z86C9012PEG is an 8-bit Z8 ROMless microcontroller operating at 12 MHz with a 3 V to 5.5 V supply range, 32 I/O ports, and a 40-pin dual-inline package. It is designed for embedded control applications that require external program and data memory while providing a conventional 8-bit processor architecture, parallel digital I/O, and compact through-hole integration. An 8-bit microcontroller is a programmable semiconductor that executes instructions from a defined instruction set and operates on byte-sized data. The Z8 family belongs to the broader embedded-controller hierarchy: ROMless microcontroller → 8-bit microcontroller → embedded processing IC → semiconductor. ROMless architecture allows application firmware and working data to be placed in external memory, making the controller suitable when code size, memory upgrades, or separate storage requirements must be controlled by the system designer. The Z86C9012PEG combines a 12 MHz clock with 32 I/O ports in a 40-pin DIP package. Its operating supply range of 3 V to 5.5 V supports both 3.3 V and 5 V system designs when the external memory, peripherals, and I/O levels are compatible. The external-memory architecture provides implementation flexibility, while the parallel I/O count supports digital control, data acquisition, display interfaces, and communication peripherals. Because the device is ROMless, a complete system requires suitable external program memory and the associated address, data, and control connections. The 12 MHz operating frequency provides the timing reference for instruction execution and peripheral interfacing. As with other 8-bit controllers, the practical clock rate, code timing, and bus performance depend on the external memory implementation, bus timing, and firmware rather than on internal program storage alone. Typical uses include industrial control panels, building automation modules, instrumentation interfaces, motor-control logic, programmable timers, and legacy embedded systems being refreshed without changing an existing 40-pin PCB footprint. The DIP format is particularly useful for through-hole industrial equipment, prototypes, repair assemblies, and designs assembled in small or medium production volumes. The primary design consideration is compatibility with the existing controller ecosystem. Confirm pin assignments, external-memory requirements, reset behavior, oscillator connections, supply levels, and peripheral compatibility before replacing another device. Use the Zilog datasheet and pin-description table as the authority for PCB routing, and validate timing with the intended external memory and crystal or clock source. This product page consolidates the confirmed Z86C9012PEG specifications, package characteristics, sourcing information, and practical integration guidance. It also distinguishes confirmed attributes from details that require datasheet verification, helping engineers assess fit for an embedded-control redesign or legacy-system maintenance.

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Z86C9116AEG

Z86C9116AEG - 8-Bit 16MHz ROMless MCU | Zilog

The Zilog Z86C9116AEG is an 8-bit Z8 ROMless microcontroller operating at 16 MHz and packaged in a 44-LQFP measuring 10 mm by 10 mm. Its 4.5 V to 5.5 V operating-supply range and -40 °C to 105 °C ambient-temperature range suit embedded control systems requiring a compact, surface-mountable processor. A microcontroller is a programmable semiconductor that integrates a processor core, memory interfaces, and peripheral functions on one device. The Z8 family belongs to the 8-bit microcontroller hierarchy, where each instruction operates on an 8-bit data unit. The Z86C9116AEG is ROMless, meaning that its program storage must be supplied by external memory rather than an internal mask-programmed ROM. This architecture is useful when firmware updates, flexible code storage, or separate program and data memories are required. The headline operating characteristics are a 16 MHz clock, an 8-bit architecture, and ROMless configuration. Its 4.5 V minimum supply voltage means the device operates within a conventional 5 V embedded-processing range. The 44-LQFP package provides a surface-mount assembly option with external leads on all four sides. Since the MCU has no internal program ROM, the board must include an external program-memory interface and suitable memory circuitry. The Z86C9116AEG targets compact embedded controllers where an 8-bit processor is sufficient for supervisory control, sequencing, input processing, and peripheral coordination. The external-memory architecture allows the application code to be changed without replacing the microcontroller, which can simplify long-life product maintenance. Clock and bus timing must be designed for 16 MHz operation, while firmware must account for the access time of the selected external memory device. Typical uses include industrial control modules, instrument panels, building equipment, appliance controllers, and compact peripheral controllers. The 44-LQFP package is particularly useful where a larger leaded package would be unsuitable for automated assembly. For cost-sensitive or space-constrained designs, engineers should compare the board area and external-memory cost of this ROMless device against Z8 devices that contain internal program memory. PCB design should preserve the pin assignments and layout requirements defined by the Zilog datasheet, especially for the external program-memory interface and clock circuitry. Decoupling capacitors should be placed directly at the supply pins, while all unused inputs should be connected to defined logic levels. Firmware development requires a programmer, Z8-compatible toolchain, and the device-specific configuration information published by Zilog. This product page consolidates the confirmed device identity, package, supply range, temperature range, and ROMless architecture into an engineering-focused selection reference. It also distinguishes the confirmed characteristics of Z86C9116AEG from unverified replacement assumptions, helping engineers make a defensible PCB, firmware, and sourcing decision.

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Z86C9116FEC

Z86C9116FEC - 16MHz 8-Bit ROMless MCU | Zilog | Embedded Control

The Zilog Z86C9116FEC is an 8-bit Z8 ROMless microcontroller operating at 16MHz, with 236 bytes of RAM, 32 I/O lines, two 8-bit timers, and a UART interface in a 44-LQFP package measuring 10mm by 10mm. The device is designed for embedded control applications that require external program memory and a compact, surface-mount microcontroller package. A ROMless microcontroller is an 8-bit microcontroller that does not contain its application program in internal ROM. It must be paired with an external memory device, which gives the system designer flexibility to select program capacity independently of the MCU. In the product hierarchy, Z86C9116FEC belongs to the Z8 family of ROMless microcontrollers and provides a straightforward architecture for small embedded controllers. The principal features of this device include a 16MHz operating frequency, 236 bytes of on-chip RAM, 32 general-purpose I/O lines, two 8-bit timer blocks, and one UART communication interface. Its ROMless architecture makes it appropriate when firmware changes are expected, when program storage requirements vary between products, or when a common external flash configuration is desired across multiple controller variants. The Z8 architecture provides an 8-bit processing path optimized for embedded control tasks rather than high-throughput computing. Combined with 32 I/O lines, the device can directly support digital inputs, outputs, control signals, and peripheral interfaces. The two 8-bit timers support timing and event-counting duties, while the UART provides a serial channel for connecting the controller to a host, sensor assembly, or communication module. Typical design opportunities include programmable logic controllers, appliance controllers, building-control modules, motor-sequence controllers, industrial interface modules, and compact embedded automation products. Its 44-LQFP package provides a practical pin count for systems requiring numerous external connections while remaining compatible with standard surface-mount assembly and inspection processes. A key design consideration is that the ROMless device requires suitable external program memory and a correctly designed bus interface. Designers should also confirm the available operating voltage, clock configuration, peripheral pin assignments, and memory interface requirements against the current Zilog datasheet before finalizing the schematic or PCB layout. This product page consolidates the verified distributor specifications, package information, pricing availability, cross-reference evidence, and design considerations for Z86C9116FEC. It also distinguishes confirmed drop-in replacements from merely similar controllers, helping engineers avoid selecting a 44-LQFP part whose pinout or architecture is not actually compatible.

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Z86C9116FEG

Z86C9116FEG - 16MHz ROMless 8-Bit MCU | Zilog | Industrial

The Zilog Z86C9116FEG is an 8-bit Z8 ROMless microcontroller operating at 16 MHz, with 236 x 8 bytes of RAM, 24 general-purpose I/O pins, and UART/USART connectivity in a 44-LQFP 10 x 10 mm surface-mount package. Its 4.5 V to 5.5 V supply range and -40°C to +105°C industrial temperature range suit embedded control systems requiring compact, deterministic communications and general-purpose I/O. The Z86C9116FEG is designed for applications that require external program memory while retaining a compact 8-bit control architecture. What is an 8-bit ROMless microcontroller? A ROMless microcontroller is a programmable embedded controller that does not contain its own program memory. Instead, the application program is stored in external memory, such as an external ROM or nonvolatile memory. This makes ROMless devices useful when the firmware must be large, frequently updated, or separately managed. The Z8 family combines an 8-bit CPU, general-purpose I/O, timers, serial communication, and external-memory interfacing in a single device. The Z86C9116FEG provides a 16 MHz operating frequency, 236 x 8 bytes of internal RAM, 24 general-purpose I/O pins, and UART/USART connectivity. Its 44-LQFP package exposes 44 leads and is intended for surface-mount PCB assembly. The 4.5 V minimum operating voltage and 5.5 V maximum operating voltage are important constraints for systems using 5 V logic. The industrial temperature range supports use in factory equipment, industrial controllers, instrumentation, and other embedded applications where consumer-temperature components may be unsuitable. The ROMless architecture separates code execution from program storage and allows the designer to select the external memory device based on code size, programming requirements, or field-update strategy. The 16 MHz clock rate provides a balance between processing throughput, power consumption, and system design simplicity for 8-bit control tasks. UART/USART support allows the controller to communicate with sensors, host systems, converters, or other embedded modules. Typical uses include industrial automation modules, serial protocol bridges, keypad and display controllers, appliance control boards, motor-control supervisory circuits, and compact embedded instruments. The 24 available I/O pins can support digital inputs, outputs, control signals, status indicators, and external interface functions when the application does not require all pins for specialized peripheral functions. Designers should verify the external-memory interface, oscillator requirements, decoupling, and the complete 44-pin signal map against the manufacturer datasheet before layout. Because the provided source data does not publish a verified pinout or pricing table, those details remain explicitly marked as unavailable in the technical records. This page combines verified distributor specifications, package information, application guidance, and purchasing considerations for engineers evaluating the Z86C9116FEG.

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Z86C9116FSC

Z86C9116FSC 16MHz ROMless 8-Bit MCU | Zilog

Zilog Z86C9116FSC is an 8-bit ROMless Z8 microcontroller operating at 16 MHz and packaged in a 44-pin LQFP measuring 10 mm by 10 mm. It provides 236 bytes of RAM, 32 I/O pins, two 8-bit timers, and a UART interface. The device combines a compact 8-bit embedded-control architecture with external program-memory support, making it suitable for cost-sensitive control systems that require dedicated application firmware. An 8-bit microcontroller is a microprocessor core, memory interface, and peripheral set integrated on one semiconductor die. The Z8 family belongs to the broader microcontroller and embedded-controller hierarchy, where firmware controls sensors, relays, user interfaces, communications, and power functions. Unlike a ROM-based device, the ROMless Z86C9116FSC requires an external program-memory device, allowing the program capacity and interface arrangement to be selected according to the finished system. The verified product information identifies a 16 MHz operating speed, 236 bytes of RAM, 32 I/O pins, two 8-bit timers, and one UART interface. These resources support basic sequential control, periodic timing, serial communication, and digital input/output tasks. The 44-LQFP package provides 44 physical leads for power, ground, clock, reset, programming, I/O, and external-memory connections, although exact lead assignments are not included in the supplied source data. The ROMless architecture is the principal engineering distinction of this Z8 device. External program memory allows firmware capacity to scale with the application, but the PCB must also provide the external memory interface, address and data routing, and associated signal-integrity measures. Designers should therefore evaluate the complete memory subsystem rather than treating the microcontroller package as a self-contained storage solution. Typical uses include small industrial controllers, appliance-control boards, keypad interfaces, communication modules, motor or relay sequencers, and compact embedded products that benefit from the Z8 instruction set and dedicated timers. External program memory is appropriate when a fixed application program must be loaded during manufacturing rather than stored in an internal ROM mask. A primary design consideration is package and memory-interface validation. Confirm the exact Z86C9116FSC pin assignment, external-memory requirements, clock configuration, and programming connection against the manufacturer documentation before layout release. Because the available verified data does not include a complete pinout or numerical distributor price schedule, those details remain explicitly unresolved rather than being inferred. This product page consolidates the verified distributor specifications, purchasing sources, package information, and engineering guidance for the Z86C9116FSC. It also distinguishes verified facts from missing electrical, pinout, pricing, and lifecycle details, helping engineers assess fit before committing to a PCB design or production order.

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Z86C9116PEG

Z86C9116PEG - 8-Bit 16MHz ROMless MCU | Zilog

Zilog Z86C9116PEG is an 8-bit Z8 ROMless microcontroller operating at 16 MHz with a 4.5 V to 5.5 V supply range, 32 I/O ports, and a 40-pin CDIP package. It is designed for embedded control systems requiring a compact 8-bit processor, dedicated I/O capacity, and external program memory. A ROMless microcontroller is a microprocessor that contains no embedded program memory. The Z86C9116PEG therefore requires an external memory device for firmware storage, while its internal architecture supplies the central processing unit, I/O control, timers, interrupts, and communication peripherals. Within the semiconductor hierarchy, it belongs to the microprocessor and microcontroller family, specifically the Zilog Z8 product line. The principal operating characteristics are a 16 MHz clock, an 8-bit data bus, 32 I/O ports, and a 4.5 V to 5.5 V operating supply. Its industrial operating range makes it appropriate for factory equipment, instrumentation, access-control systems, and embedded controllers that require deterministic peripheral control. The 40-pin CDIP package also supports traditional through-hole assembly and prototyping workflows. The ROMless architecture separates firmware storage from the controller, allowing application code size to scale with an external memory component. This can be useful in designs that need multiple firmware variants, field-programmable logic, or a shared memory interface. The trade-off is that the board must provide an external memory device and associated address and data connections, increasing component count and PCB complexity relative to a ROM-based microcontroller. Typical applications include industrial keypad scanners, programmable timers, motor-control interfaces, serial protocol bridges, test fixtures, and compact control panels. The Z86C9116PEG is especially appropriate when a design needs more I/O than a small surface-mount controller offers but does not require the processing power or memory capacity of a 16- or 32-bit MCU. Before layout, confirm the external-memory interface requirements, reset behavior, oscillator arrangement, and available I/O functions in the Zilog Z86C9116 datasheet. Use the manufacturer pin-description table when assigning tracks because the 40-pin CDIP footprint includes both power, ground, clock, reset, I/O, and external-memory signals. This page combines core Z86C9116PEG specifications, verified sourcing information, compatible alternatives, and practical selection guidance to help engineers evaluate the controller for legacy and new embedded-control designs.

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Z86C9116PSG

Z86C9116PSG - 16MHz 8-Bit ROMless MCU | Zilog

Zilog Z86C9116PSG is an 8-bit Z8 ROMless microcontroller operating at 16 MHz with a 4.5 V to 5.5 V supply range, 236 bytes of RAM, 32 I/O ports, and a 40-pin PDIP package. It belongs to the Z86C91 product family and requires an external program-memory device because no internal ROM is provided. An 8-bit ROMless microcontroller is a compact embedded-control processor designed for systems that require deterministic I/O handling rather than application storage inside the MCU. In the product hierarchy, the Z86C9116PSG is a microcontroller, an embedded processor, and a semiconductor integrated circuit. Its ROMless architecture separates program memory from the controller, allowing designers to select external storage according to firmware size and interface requirements. The headline features include a 16 MHz operating clock, an 8-bit data bus, 236 bytes of on-chip RAM, and 32 I/O ports. The 4.5 V to 5.5 V supply range supports conventional 5 V industrial embedded systems. Because the MCU is ROMless, an external program-memory device is required, while the 236 bytes of internal RAM provide limited working memory for variables, stack operations, and control-state management. The Z86C9116PSG uses the Z8 architecture and is positioned as a compact, low-cost controller for embedded products requiring parallel digital I/O. Its 40-pin PDIP package provides a comparatively large number of external connections compared with smaller surface-mount MCUs, making it practical for prototyping, through-hole industrial assemblies, and applications that need direct access to peripheral pins. Typical uses include appliance controllers, industrial sequencers, keyboard or panel interfaces, lighting-control modules, instrumentation, and small embedded automation systems. The 32 I/O ports are particularly useful when a design must connect multiple switches, indicators, sensors, or actuators without relying on additional interface expanders. When designing around this device, engineers must account for the absence of internal program memory and provide a suitable external memory implementation. The available verified data does not specify the external-memory interface, exact pin assignments, peripheral mix, or detailed timing characteristics, so those items should be confirmed in the manufacturer datasheet before schematic capture. This product page consolidates distributor availability, verified pricing, device hierarchy, package information, and same-brand replacement analysis. It also distinguishes directly documented drop-in candidates from alternatives that cannot be verified as pin-to-pin compatible, helping engineers avoid replacing an MCU solely because the clock speed and package description look similar.

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Z86C9116VEG

Z86C9116VEG - 16MHz ROMless 8-Bit MCU | Zilog

The Zilog Z86C9116VEG is an 8-bit ROMless CMOS microcontroller operating at 16 MHz with a 4.5 V to 5.5 V supply range. It provides an 8-bit data bus, 32 I/O ports, and an industrial operating range. The part is identified as a DIP-40 device in the technical listing, making it suitable for designs that require a through-hole controller with external program memory. As a ROMless microcontroller, the Z86C9116VEG requires an external program-memory device connected through its address and data buses. This architecture separates code storage from the controller and allows the program size to be selected during system design. The 16 MHz operating speed provides a practical balance between processing throughput, power consumption, and external-memory access time for cost-sensitive embedded control systems. The listed electrical characteristics include a 4.5 V minimum operating supply and a 5.5 V maximum operating supply. An 8-bit external data bus supports connection to external program memory, while the 32 available I/O ports provide dedicated digital interfaces for sensors, switches, indicators, relays, and peripheral control signals. The device operates in the industrial temperature range, supporting industrial control and instrumentation environments. Because the device is ROMless, the complete memory system depends on the external memory interface, address decoding, and firmware initialization sequence. Board designers should confirm the external bus timing and address map against the manufacturer datasheet before layout release. Decoupling, grounding, and unused-pin treatment are equally important for reliable operation in a through-hole industrial design. Typical uses include industrial controllers, data-acquisition modules, keypad interfaces, motor-control sequencers, appliance controllers, and embedded instrumentation. The DIP-40 format also supports prototyping and legacy system maintenance where socketed parts and hand-wiring are common. This page combines lifecycle information, verified distributor listings, pin-package details, application guidance, and engineering notes to support component selection and board-level planning for the Z86C9116VEG.

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Z86C9116VSG

Z86C9116VSG - 16MHz 8-Bit ROMless MCU | Zilog

The Zilog Z86C9116VSG is an 8-bit Z8 ROMless microcontroller with a 16 MHz clock speed, 32 I/O ports, and a 44-pin PLCC package. Its 4.5 V to 5.5 V supply-voltage range supports industrial control systems that use a conventional 5 V power rail. The ROMless architecture requires an external program-memory device, while the integrated 32-port I/O capability reduces the number of companion interface ICs needed in small embedded systems. An 8-bit microcontroller is a compact processor designed around a byte-oriented architecture, embedded control peripherals, and direct digital input/output. The Z8 family sits within the broader hierarchy of microcontrollers, embedded processors, and semiconductor components. Compared with a general-purpose processor, this device focuses on deterministic control tasks, communication peripherals, timers, and externally accessed program and data memory rather than operating-system performance or high-bandwidth computation. Principal features include ROMless operation, an 8-bit data bus, a 16 MHz maximum clock, and 32 I/O ports. The 44-pin PLCC package provides enough connections for external memory interfaces, parallel I/O, control signals, and clock or reset support. Because the device has no internal program memory, system access must include suitable external memory and address, data, and control wiring. The 4.5 V minimum supply voltage also leaves less headroom for low-voltage operation than 3.3 V-oriented microcontrollers. The Z86C9116VSG belongs to the Zilog Z86C91 family and uses the Z8 architecture. Its ROMless design provides flexibility for applications that require firmware upgrades, field-configurable control logic, or program storage in a separate nonvolatile device. At the same time, external memory introduces address-decoding and bus-timing requirements that must be considered during schematic design and PCB layout. The 16 MHz operating speed provides sufficient instruction throughput for typical embedded sequencing, data acquisition, keypad, display, actuator, and industrial automation tasks. Typical uses include programmable logic controllers, industrial controllers, instrumentation panels, keyboard scanners, LED or display sequence controllers, data-acquisition systems, and compact embedded automation equipment. The 32 I/O ports are especially useful for machines requiring numerous digital inputs and outputs, while external program memory allows application firmware to be sized independently of the microcontroller package. A critical design consideration is the ROMless implementation. Route the external memory bus cleanly, preserve the timing margin required by the Z8 bus interface, and include the required clock and reset components. Keep sensitive analog or communication circuitry away from high-current memory outputs, and validate signal integrity across all board lengths and temperature conditions. This page consolidates the key electrical ratings, package identity, sourcing considerations, and drop-in comparison candidates for the Z86C9116VSG. It also highlights the practical trade-offs involved in retaining the Z8 platform, especially external-memory requirements, package availability, and the difference between a true pin-compatible replacement and a merely similar controller.

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Z86C9320ASG

Z86C9320ASG - 8-Bit 20MHz ROMless MCU | Zilog

The Zilog Z86C9320ASG is an 8-bit Z8 ROMless microcontroller rated for operation up to 20 MHz and supplied in a 44-LQFP package measuring 10 mm by 10 mm. It belongs to the Z86C93 controller family and includes a hardware multiplier, a divider, and three 16-bit counter timers for embedded-control workloads that require more arithmetic capability than a basic 8-bit core. An 8-bit microcontroller is a compact embedded-processing component intended to execute firmware, read inputs, control outputs, and manage communication or timing functions in a larger electronic system. Within the embedded hierarchy, this device belongs to the microcontrollers category and uses the Z8 architecture. Because Z86C9320ASG is ROMless, its program memory must be supplied externally rather than being integrated into the device. The Z86C9320ASG combines a 20 MHz maximum clock with a hardwired 16-bit-by-16-bit multiplier, a 32-bit-by-16-bit divider, and three 16-bit counter timers. The multiplier supports efficient arithmetic in motor-control, measurement, and signal-processing routines, while the divider supports frequency and scaling calculations. These dedicated hardware resources reduce the execution burden placed on the 8-bit processor during time-sensitive control operations. The device also provides a capture register and a fast decrement mode, expanding the available event-timing options for industrial controls, counters, and timing-sensitive embedded products. The 44-LQFP package exposes 44 external connections and supports conventional surface-mount PCB assembly. Its 10 mm by 10 mm body is larger than the smallest microcontroller packages but provides a practical pin count for peripheral connections and multi-signal interfaces. Typical design roles include industrial control, digital instrumentation, motor and stepper-control systems, timing modules, and compact embedded controllers. Its dedicated arithmetic and timer resources are particularly useful when the firmware must multiply measurements, divide frequencies, count external events, or coordinate multiple timing sequences without relying entirely on software loops. For a new design, confirm oscillator, reset, clock, programming, interrupt, and I/O assignments against the manufacturer pin description before laying out the PCB. Because this is a ROMless microcontroller, the external memory interface, associated address and data routing, and programming arrangement can materially affect both routing complexity and board-space requirements. This product page combines the manufacturer-family characteristics, package information, source pricing context, cross-reference findings, and practical design considerations needed to evaluate the Z86C9320ASG. It also distinguishes verified drop-in replacements from functionally related 8-bit controllers that require separate pin, clock, memory, and peripheral validation.

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Z86C9320FSC

Z86C9320FSC 8-Bit 20MHz ROMless MCU 44-LQFP | Zilog

The Zilog Z86C9320FSC is an 8-bit Z8 ROMless microcontroller operating at up to 20 MHz in a 44-LQFP package measuring 10 x 10 mm. It provides 236 KB of RAM, 24 I/O pins, three 8-bit timers, and a UART communication interface. Z86C9320FSC is intended for embedded control designs where external program memory is required and a compact, high-pin-count surface-mount implementation is preferred. An 8-bit microcontroller is a programmable semiconductor device designed to execute embedded control logic using an 8-bit data path. The Z86C9320FSC belongs to the Z8 family of Zilog microcontrollers and is a ROMless device, meaning the application program is stored in external memory rather than embedded program ROM. This architecture separates the controller from the program memory, allowing the memory device to be selected according to application capacity, interface, and cost requirements. The principal verified specifications are a maximum operating speed of 20 MHz, 236 KB of RAM, 24 I/O, three 8-bit timers, one UART interface, and a 44-LQFP package. The package provides 44 terminals for power, clock, reset, communications, timers, interrupts, general-purpose I/O, and external-memory connections. The reported speed options include 20 MHz, 25 MHz, and 33 MHz, while the distributor listing identifies the Z86C9320FSC specifically as a 20 MHz ROMless device. The ROMless architecture is useful for applications that need larger or field-updatable firmware than a fixed-program microcontroller normally provides. External program-memory selection must account for bus timing, address capacity, signal integrity, and the controller's documented external-memory interface. The Z86C9320FSC should therefore be evaluated as a system component rather than only as a standalone MCU. Typical application areas include industrial control panels, serial-control equipment, building automation modules, data-acquisition controllers, motor-control interfaces, and embedded communication products. A UART provides a practical path for host configuration, sensor networking, or supervisory control, while the three timers support periodic timing, input capture, or basic output-control functions depending on the complete peripheral configuration. A critical design consideration is firmware availability: because this device is ROMless, the PCB must include an appropriate external memory solution and correct bus support components. Engineers should verify the complete Zilog documentation for electrical limits, pin assignments, memory-interface timing, clock requirements, and programming procedure before releasing a production layout. This page consolidates verified distributor specifications, package information, sourcing details, and engineering-oriented application guidance. It also distinguishes documented facts from parameters that require confirmation from the manufacturer datasheet, helping designers compare the Z86C9320FSC efficiently without assuming unavailable electrical details.

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Z86C9320VSG

Z86C9320VSG - 8-Bit 20MHz ROMless MCU | Zilog

The Zilog Z86C9320VSG is an 8-bit Z8 Z8 C93-series ROMless microcontroller operating at up to 20 MHz, with 236 bytes of RAM and multiply/divide capability in a 44-pin PLCC package. It is designed for embedded control systems requiring a compact processor, parallel and serial control peripherals, and externally supplied program memory. A ROMless microcontroller is a semiconductor that contains a processor core and peripheral hardware but omits embedded program memory. Zilog's Z8 family sits within the broader 8-bit microcontroller hierarchy, where the CPU core, timers, serial interfaces, interrupt controller, and external memory interface provide a compact alternative to a general-purpose processor. Z86C9320VSG is identified as a C93-series device, making it appropriate for legacy Z8 control architectures and designs requiring external program-memory organization. The headline characteristics are an 8-bit CPU, a 20 MHz maximum clock, 236 bytes of RAM, ROMless operation, multiply/divide arithmetic, and a 44-pin PLCC package. Its external-memory architecture allows the final firmware capacity to be established with suitable memory devices rather than a fixed internal ROM. The 44-pin PLCC also provides a substantial pin count for interfacing external program memory and the peripheral signals needed by embedded industrial equipment. Z86C9320VSG belongs to the Zilog Z86C93 device family. The ROMless configuration is useful when application firmware must remain in external nonvolatile memory, when production code revisions need a flexible memory strategy, or when a board family must share one processor and support several memory sizes. The processor's 20 MHz operating rate supports deterministic control logic, while the multiply/divide function is useful for scaling, compensation, and basic arithmetic tasks that would otherwise require software routines. Typical applications include industrial controllers, legacy peripheral-control boards, motor and mechanism controllers, instrumentation interfaces, and embedded systems that already use the Z8 C93 architecture. In these systems, external program memory can hold firmware while the microcontroller manages timing, communications, and I/O. The PLCC package is also appropriate for leaded, socket-compatible industrial hardware and prototypes where field replacement or component-level servicing may be important. Designers should verify the external memory interface, interrupt requirements, peripheral assignments, and pin multiplexing in the Zilog device documentation before layout release. Because the MCU is ROMless, the complete system must include suitable external program memory and the associated address, data, and control routing. A practical advantage is the flexible firmware-memory sizing, while the main trade-off is the additional board area and component count compared with a ROM-based microcontroller. This page consolidates the verified Z86C9320VSG device identity, package information, sourcing context, replacement analysis, and engineering guidance into a design-oriented reference. It also distinguishes verified drop-in interchangeability from unreferenced similarity so engineers can assess PCB reuse and migration risk with greater clarity.

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Z86C9325ASG

Z86C9325ASG - 8-Bit 25 MHz ROMless MCU | Zilog

Zilog Z86C9325ASG is an 8-bit CMOS ROMless Z8 microcontroller operating at 25 MHz, supplied in a 48-pin LQFP package measuring 7 x 7 mm. It operates from a 3 V to 5.5 V supply and is designed for embedded control systems that require deterministic timer, arithmetic, and input/output performance in a compact surface-mount package. A microcontroller is a programmable system-on-chip that integrates a processor core, memory interface, timers, serial interfaces, and digital I/O into one device. The Z8 family belongs to the broader embedded-controller hierarchy: ROMless microcontrollers are programmed externally, allowing the same silicon to be used with different program memories or configurations. This makes them useful when a product requires field customization, external nonvolatile program storage, or a memory arrangement not addressed by the MCU's own program memory. The Z86C93 family includes a hardwired 16-bit by 16-bit multiplier, a 32-bit by 16-bit divider, and three 16-bit counter timers. A capture register and fast decrement mode improve measurement and event-handling flexibility. These arithmetic and timing resources are valuable for motor control, industrial counting, signal timing, and compact embedded controllers that must perform calculations without relying on a more complex processor architecture. The 25 MHz operating rate provides more execution headroom than slower members of the Z86C93 family while retaining an 8-bit instruction-oriented architecture. Program storage is external because the device is ROMless, so designers must select the appropriate memory interface, programmer, and code-development workflow. Firmware determines the final peripheral configuration and application behavior, meaning successful implementation depends on matching the external program-memory device and bus timing to the controller requirements. Typical applications include industrial timers, counter modules, keypad and display controllers, appliance controls, small motor-control boards, and embedded OEM products requiring compact 8-bit control. The 48-pin LQFP package exposes more I/O than smaller packages and supports prototype and production assembly using standard surface-mount processes. It is particularly appropriate where three timers and dedicated arithmetic hardware simplify control tasks that would otherwise require additional discrete logic. For layout and firmware work, begin with the manufacturer pin-description table and the Z86C93 hardware design guidance. Confirm external program-memory addressing, oscillator connections, reset behavior, and the functions assigned to every I/O pin before routing the board. Pay particular attention to trace length, grounding, and decoupling around high-frequency clock and program-bus signals because those routes determine whether the intended 25 MHz operation is reliable in the final assembly. This product overview combines the verified Z86C93 device characteristics with practical guidance on package use, firmware resources, and board integration. It also identifies the limits of direct substitution: an equivalent-looking 8-bit microcontroller is not a true drop-in replacement unless its package pins, electrical ratings, timer resources, instruction behavior, and external memory interface are all confirmed compatible.

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Z86C9325PSG

Z86C9325PSG - 25MHz ROMless 8-Bit MCU | Zilog

Zilog, Inc. Z86C9325PSG is a ROMless 8-bit Z8 microcontroller with a 25 MHz core clock, 236 x 8 bytes of RAM, 24 general-purpose I/O pins, and a 40-pin DIP package. Its operating-voltage range is 3 V to 5.5 V, and its integrated interfaces include EBI/EMI and UART/USART connectivity. The device is designed for embedded control systems that require external program memory and flexible peripheral expansion. A ROMless microcontroller is an embedded controller whose application program is stored in external memory rather than internal mask-programmable ROM. This architecture belongs to the broader hierarchy of microcontroller, embedded processor, embedded controller, and semiconductor. It is useful when firmware revisions, external memory sizing, or shared program storage are important. Zilog's Z8 family combines an 8-bit CPU with integrated peripherals intended for control, communications, and mixed external-memory designs. Key features include a 25 MHz operating speed, 24 general-purpose I/O pins, 236 bytes of internal RAM, an internal oscillator, and serial and external-bus interfaces. The ROMless architecture allows the program-memory implementation to be selected separately from the microcontroller. Its 3 V to 5.5 V supply range supports both 3.3 V and conventional 5 V embedded systems, although designers must observe the operating limits associated with each clock and peripheral configuration. The Z86C9325PSG architecture is organized around an 8-bit Z8 core and an external program-memory interface. EBI/EMI provides access to external devices, while UART/USART supports serial communication with sensors, host computers, and other controllers. The 24 I/O pins allow a prototype to connect digital inputs, output devices, and address or data-bus signals. Exact pin directions, interrupt behavior, and memory-interface timing should be confirmed from the manufacturer datasheet before a PCB is released. Typical uses include industrial keypad controllers, appliance control modules, serial protocol bridges, programmable instrument interfaces, and embedded systems that benefit from externally updatable or shared program memory. Because the controller is ROMless, firmware can be stored in flash, SRAM, or another suitable external memory, allowing programmers to separate hardware configuration from application code. The principal design consideration is the external-memory interface. Board layout should minimize trace lengths between the Z86C9325PSG and external memory, provide a stable clock and supply network, and preserve signal-integrity margins on the external bus. Power-supply decoupling and input protection should be sized for the attached memory and peripheral loads rather than assuming that the microcontroller alone determines the demand. This product overview consolidates the verified core specifications, interface capabilities, package information, application guidance, and sourcing questions for engineers evaluating the Z86C9325PSG. It also distinguishes documented device facts from parameters that require confirmation in the manufacturer datasheet before layout or firmware deployment.

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Z86C9325VSG

Z86C9325VSG - 25MHz 8-Bit ROMless MCU | Zilog

Zilog Z86C9325VSG is an 8-bit ROMless Z8-series microcontroller with a 25 MHz clock, 24 I/O ports, and a 2.97 V to 5.5 V operating supply range in a 44-pin PLCC package. It targets embedded control designs requiring an external program and data memory while retaining the Z8 peripheral architecture. A microcontroller is a programmable semiconductor that integrates a CPU core, memory interface, I/O ports, timers, and communication peripherals on one device. The Z86C9325VSG belongs to the Z8 family of 8-bit embedded controllers and is positioned as a general-purpose embedded-control component for industrial, consumer, and communications equipment. The controller combines a 25 MHz maximum clock with an 8-bit data bus and 24 I/O ports. Its 2.97 V to 5.5 V supply range supports both 3.3 V and 5 V system designs. The ROMless configuration permits firmware and data to be stored in external memory, providing greater design flexibility than a device with fixed internal program memory. The Z86C93 architecture includes a hardwired 16-bit by 16-bit multiplier, a 32-bit by 16-bit divider, and three 16-bit counter timers. A capture register and fast decrement mode support additional measurement and control functions. These resources can reduce external logic in motor, counter, signal-processing, and timing-oriented embedded systems. Typical uses include industrial controllers, appliance-control boards, communications equipment, keypad and panel interfaces, and compact embedded systems that need moderate processing speed with numerous I/O connections. External memory is required when program storage exceeds any external-memory configuration selected for the design, and the system must account for the controller’s external address and data interfaces. Layout planning should preserve access to all 44 PLCC terminals and route sensitive clock and reset signals away from noisy switching nodes. Power, decoupling, programming, and clock requirements should be implemented according to the Z86C93 manufacturer datasheet. Because this is a ROMless controller, firmware availability, boot behavior, and external-memory sizing determine whether it remains a practical upgrade option. This page combines the Z86C9325VSG specifications with package details, engineering applications, verified drop-in references, and practical selection guidance. It is designed to help engineers assess clock rate, voltage compatibility, external-memory requirements, pin count, and lifecycle status before committing a new PCB design.

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Z86C9333ASG

Z86C9333ASG - 33MHz 8-Bit ROMless MCU | Zilog

The Zilog Z86C9333ASG is an 8-bit ROMless Z8 microcontroller operating at 33 MHz, supplied in a 48-pin LQFP package measuring 7 x 7 mm. Its 4.5 V to 5.5 V operating-voltage range suits 5 V embedded control systems where an 8-bit processor must combine straightforward peripheral integration with deterministic control performance. The part is identified as part of the C93 microcontroller family. An 8-bit microcontroller is a compact embedded processor designed to execute control instructions from externally supplied program memory. The ROMless architecture places code in external memory rather than an internal masked-ROM array, allowing the same controller to be used with different program-storage arrangements. Within the product hierarchy, the Z86C9333ASG is an embedded microcontroller, an integrated circuit, and a semiconductor intended for industrial automation, instrumentation, and equipment-control applications. The principal operating specifications are a 33 MHz clock, an 8-bit CPU architecture, and a 4.5 V to 5.5 V supply range. The device also incorporates a multiplier and divider capability according to the product description. These functions make it useful in control systems that need arithmetic scaling, frequency generation, timing measurement, or peripheral clock division without relying on a higher-cost processor architecture. The Z86C9333ASG uses a 48-pin LQFP package, providing a comparatively high pin count for an 8-bit controller and supporting connection of multiple external interfaces and memory devices. Its 7 x 7 mm body keeps the component practical for compact industrial control boards. The package exposes the controller's external program-memory interface, general-purpose I/O, and other device functions through a surface-mount footprint requiring careful signal-integrity and layout planning. Typical uses include industrial controllers, data-acquisition equipment, programmable logic controllers, instrumentation, and embedded automation modules. A designer may select this device when the application fits an 8-bit control model but requires external program memory, moderate processing speed, and extensive I/O. It can also serve as a dedicated subsystem controller alongside another processor when peripheral management or timing functions dominate the design. PCB implementation should prioritize a short, continuous ground return beneath the device and careful routing of clock, reset, and external-memory signals. Decoupling capacitors should be placed directly beside the relevant supply pins, while external program-memory routing should minimize propagation delay between the controller and memory components. Before release, verify the exact pin assignments, electrical timing, and power requirements against the Zilog datasheet. This product page combines the Z86C9333ASG's confirmed operating characteristics, application guidance, sourcing information, and design considerations in a format that helps engineers evaluate the controller before beginning PCB layout or firmware development.

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Z86C9333FSC

Z86C9333FSC - 33MHz 8-Bit ROMless MCU | Zilog

Zilog Z86C9333FSC is a 33 MHz, 8-bit Z8 ROMless microcontroller with 236 x 8 bytes of RAM, 24 I/O lines, three 8-bit timers, UART/USART support, and EBI/EMI connectivity in a 44-pin LQFP package measuring 10 x 10 mm. Its 33 MHz operating speed provides higher throughput than conventional low-speed 8-bit controllers while retaining the simple Z8 architecture and external program-memory interface. An 8-bit microcontroller is a compact processor designed to execute embedded control logic from program memory and maintain operating state in RAM. The Z86C9333 belongs to the broader embedded-controller hierarchy: MCU -> microcontroller -> embedded processor -> semiconductor. A ROMless architecture means the device contains no internal program ROM, so firmware must be supplied through an external memory interface. This architecture is useful when programs, firmware revisions, or memory sizes must remain flexible. The verified feature set includes ROMless operation at 33 MHz, 236 bytes of RAM, 24 I/O lines, three 8-bit timers, UART communication, and EBI/EMI interfaces. The 44-LQFP surface-mount package exposes substantially more signal pins than small dual-inline packages, supporting parallel external memory and additional peripheral connectivity while remaining compatible with automated PCB assembly. The Z86C9333 architecture is intended for embedded control rather than high-compute workloads. Its external program-memory interface allows the stored firmware size to be established outside the MCU, while its three timers support periodic counting, timing, and event generation. UART/USART communication enables connection to host systems, sensors, or other controllers, and EBI/EMI provides an external bus-oriented path for additional devices. Typical applications include industrial keypad controllers, serial data concentrators, instrumentation interfaces, embedded control panels, and compact automation modules. In these systems, the 33 MHz speed can improve response to serial traffic and control tasks, while the 24 I/O lines reduce the need for separate I/O expanders. The ROMless configuration is particularly valuable when the same MCU platform must cover several firmware versions or board configurations. Designers must account for external program-memory timing, address decoding, bus contention, and required support components when using the ROMless configuration. PCB layout should minimize routing delay and preserve signal integrity on external bus and UART lines. Software must also provide the vector table and reset behavior expected by the external memory system. Because the verified data does not state supply voltage, timing margins, or detailed pin assignments, those values should be confirmed in the manufacturer documentation before schematic capture. This product page consolidates verified distributor specifications, same-package replacement information, application guidance, and design cautions. It distinguishes confirmed Z86C9333FSC characteristics from unavailable electrical details so procurement and engineering decisions can be made without inventing package, pin, or lifecycle information.

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Z86C9333VSG

Z86C9333VSG - 8-Bit 33MHz ROMless MCU | IXYS

The IXYS Z86C9333VSG is an 8-bit, 33 MHz ROMless Z8-series microcontroller packaged in a 44-lead J-leaded LCC measuring 16.6 mm by 16.6 mm. It operates from a 4.5 V to 5.5 V supply and is intended for embedded control systems requiring an external memory interface, compact surface-mount construction, and a moderately high operating clock. A microcontroller is a programmable semiconductor that integrates a CPU, memory interfaces, I/O ports, timers, and peripheral functions on one device. The Z8 family belongs to the broader hierarchy of 8-bit microcontrollers, embedded processors, semiconductor integrated circuits, and electronic control components. A ROMless configuration means the device does not contain its final program storage internally; an external memory device is therefore part of the complete embedded design. Key characteristics include the 8-bit CPU architecture, 33 MHz maximum clock, ROMless program-memory architecture, and 4.5 V to 5.5 V operating supply. Its 44-LCC J-lead package supports compact industrial, consumer, and embedded-control assemblies without relying on a fine-pitch BGA package. The package is identified as surface-mount technology and uses J-shaped terminals designed for board attachment and mechanical inspection. The device is specifically described as a Z8-series microcontroller and as an embedded controller. Its operating architecture allows firmware and data to be organized in external memory, which can provide flexible field-programmable behavior, reusable platform designs, and separation between application code and the microcontroller package. At 33 MHz, the processor is suited to control loops, human-interface tasks, protocol handling, and supervisory functions that require more scheduling headroom than a basic low-speed microcontroller. Typical applications include industrial machine controls, instrumentation panels, motor and actuator supervisory systems, building-control interfaces, programmable logic controllers, and compact embedded control products. The 4.5 V to 5.5 V supply range is suitable for regulated 5 V system rails. Designs should provide suitable external program and data memory, power decoupling, oscillator circuitry, and a reset arrangement appropriate to the selected Z8 memory interface. The primary engineering consideration is that ROMless operation requires additional memory and careful bus implementation. Place the external memory, controller, and associated routing as a coordinated subsystem, following the pin-description and reference-circuit guidance in the manufacturer datasheet. Confirm signal timing and memory-map compatibility before PCB release because the CPU clock, external memory access, and I/O behavior must operate as one consistent design. This page consolidates verified package, clock, supply, architecture, and lifecycle information into an engineering-oriented product record. It also separates confirmed Z86C9333VSG characteristics from unresolved memory and peripheral details, compares related Z8 devices, and highlights practical verification steps for external-memory, decoupling, and pinout decisions.

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Z86C9533VSC

Z86C9533VSC - CMOS Z8 DSP Microcontroller | Zilog

Zilog Z86C9533VSC is a CMOS Z8 microcontroller with an embedded digital signal processor, combining general-purpose microcontroller control with dedicated DSP processing in a 84-pin leadless chip carrier package. It belongs to the Z8 family of highly integrated embedded controllers designed for applications requiring both digital control and real-time signal processing. The Z86C95 architecture is ROMless, allowing program storage and boot code to be implemented in external memory. A digital signal processor, commonly abbreviated as DSP, is a semiconductor architecture optimized for operations used in signal processing, including multiplication, accumulation, filtering, waveform generation, and spectral analysis. The Z8 MCU hierarchy combines a conventional embedded-control environment with an embedded DSP engine. This integration can reduce the need for separate processor packages when a system must perform control functions and process sampled or generated signals concurrently. The principal identifiable features of the Z86C9533VSC are its CMOS construction, Z8 single-chip microcontroller architecture, embedded DSP processor, ROMless configuration, and 84-pin LCC package. Its integration is useful when a product needs deterministic embedded control alongside digital signal-processing functions. Exact processor clock, memory, I/O, electrical limits, temperature range, and package dimensions must be confirmed against the manufacturer datasheet before schematic capture or firmware development. The Z86C9533VSC belongs to the Z86C95 MCU family, which combines microcontroller functionality with an embedded DSP processor. A ROMless architecture generally requires external program memory, so designers should plan the memory interface, reset behavior, bus timing, and firmware loading method as an integrated part of the system architecture rather than treating memory as an afterthought. Firmware development also requires the correct Z8 toolchain, device programming method, interrupt configuration, and peripheral initialization sequence. Typical uses include digital audio and communications, industrial signal conditioning, motor and motion control, communications equipment, and embedded systems that combine a control loop with real-time waveform processing. The LCC-84 format provides many external connections compared with a small leaded microcontroller package, making it suitable for systems requiring multiple peripheral, bus, and control signals while still allowing board-level miniaturization. PCB implementation requires careful attention to exposed-pad or thermal requirements if present, supply decoupling, signal integrity, and programming access. Because this is a fine-pitch leadless package, verify land geometry and assembly tolerances against the manufacturer package drawing. A new design should also confirm peripheral multiplexing and pin assignments in the datasheet rather than inferring them from the larger Z8 family. This product page organizes the available Z86C9533VSC identity, packaging information, sourcing path, and engineering considerations. It also separates documented facts from unverified numeric details, helping engineers move from part selection to datasheet verification without relying on assumptions about clock speed, memory size, or electrical performance.

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Z86E0308PSG

Z86E0308PSG - 8-Bit Z8 OTP MCU, 8MHz | Zilog

The Zilog Z86E0308PSG is an 8-bit Z8 CMOS microcontroller with 512 bytes of one-time-programmable memory, an 8 MHz operating frequency, and support for 3.3 V or 5 V operation. It is packaged in an 18-pin PDIP. The device belongs to the Zilog Z8 family of small-format embedded microcontrollers designed for cost-sensitive control, monitoring, and simple peripheral-control applications. Its compact memory footprint, integrated digital control functions, and dual-voltage operation make it suitable for designs that need deterministic control without a larger application-specific processor. An OTP microcontroller stores programmed logic permanently, so the Z86E0308PSG is appropriate for finished products whose control firmware does not need field updates. The Z8 architecture uses an 8-bit instruction-oriented design and is commonly used for appliance controls, industrial interfaces, sensor conditioning systems, and embedded automation equipment. Its 3.3 V and 5 V capability helps designers support multiple supply environments without changing the controller family. The manufacturer identifies the Z86E0308PSG as an 8-bit MCU with 512-byte OTP memory and an 8 MHz maximum operating frequency. The 18-pin PDIP package provides a through-hole option for prototypes, educational designs, and production assemblies where leaded components are preferred. Because the exact peripheral allocation, electrical limits, pin names, and timing details are not listed in the retrieved product descriptions, engineers should use the Zilog Z86E03/E06 CMOS Z8 OTP Microcontrollers datasheet for the definitive pinout and timing reference. Typical implementations include simple motor and relay controllers, temperature and industrial monitoring units, keyboard interfaces, LED status panels, and low-cost embedded equipment. The 512-byte OTP limit is most suitable for compact control loops rather than protocol-heavy gateways, data logging, or applications requiring substantial RAM. In those designs, the MCU can handle discrete input decisions, timing, and peripheral coordination while external components provide sensing, actuation, communications, or power regulation. For a new layout, verify the 18-pin PDIP footprint, oscillator requirements, reset behavior, input thresholds, and programming procedure against the manufacturer datasheet before committing the PCB. Use the Request a Quote form on this page to request current commercial availability, lead time, and ordering information.

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Z86E0308SSG

Z86E0308SSG - 8-Bit 8MHz OTP Microcontroller | Zilog

Zilog Z86E0308SSG is an 8-bit Z8 microcontroller with 512 bytes of one-time-programmable memory, an 8 MHz operating frequency, and a 3 V to 5.5 V supply range. The device is packaged in an 18-pin SOIC with a 300 mil body width for through-hole assembly compatibility. It combines a compact embedded-control footprint with OTP program memory for cost-sensitive, low-volume embedded products. An 8-bit microcontroller is a compact computing device designed to execute control logic, monitor inputs, and drive outputs within appliances, instruments, and industrial equipment. The Z86E0308SSG belongs to the Z8 microcontroller family, combining a processor core, OTP program memory, timers, and serial I/O in one package. This architecture suits sequential control tasks where deterministic behavior and low component count matter more than high-bandwidth processing. Principal characteristics include an 8 MHz clock, 512 bytes of OTP program memory, and operation across a 3 V to 5.5 V supply range. Its 18-pin SOIC-18-300mil package supports conventional PCB assembly and inspection. The industrial temperature classification, gull-wing terminal arrangement, and rectangular package geometry are useful constraints when laying out a new board or sourcing a mechanically similar replacement. The Z8 architecture is intended for embedded control rather than high-volume data processing. One-time-programmable memory makes the programmed version of the device suitable for products whose firmware does not require field updates. Because the memory cannot be rewritten after programming, production programming, blank-device handling, and firmware revision control must be planned before devices reach the assembly line. Typical uses include small appliance controllers, instrumentation front ends, industrial control modules, sensor interfaces, and dedicated timing or sequence-control products. In these applications, the MCU can evaluate digital inputs, operate timers, update displays, and communicate with external peripherals while keeping the external component count and board area modest. When designing a board, verify the exact pin assignments, port capabilities, oscillator requirements, and programming interface against the manufacturer datasheet before routing signals. The 300 mil SOIC body is wider than a narrow 150 mil SOIC, so component clearance, connector placement, and assembly tooling must accommodate the specified package rather than a generic 18-pin footprint. This page consolidates distributor specifications, package constraints, drop-in comparison information, and application-level engineering guidance. It also distinguishes documented parameters from values that must be confirmed with Zilog before schematic release, helping designers move from part selection to a controlled PCB and firmware implementation.

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Z86E0412PEG

Z86E0412PEG - 8-Bit 12MHz OTP MCU | Zilog

Zilog Z86E0412PEG is an 8-bit Z8 CMOS microcontroller operating at up to 12 MHz, with 1 KB of one-time-programmable program memory, 125 bytes of RAM, and 14 I/O pins in an 18-pin DIP package. It is intended for compact control systems that require deterministic embedded control in a low-pin-count through-hole package. A microcontroller is a programmable semiconductor containing a processor core, program memory, data memory, and peripherals on one integrated circuit. The Z8 family combines an 8-bit CPU architecture with resources suited to appliance controls, industrial controllers, and small production systems. The Z86E0412PEG belongs to the one-time-programmable segment of this family, providing a practical path to firmware development and low-volume manufacturing without requiring a user-programmed flash-memory interface. The principal specifications include a 12 MHz maximum operating frequency, 1 KB of OTP program memory organized as 1K x 8, 125 bytes of RAM, and 14 I/O lines. Its operating supply range is 4.5 V to 5.5 V, while the specified temperature range extends from -40°C to +105°C. The DIP-18 package supports conventional through-hole PCB assembly and is useful when socketed prototyping, manual service, or legacy manufacturing processes are preferred. Its one-time-programmable architecture allows application firmware to be permanently written during production, providing a field-programmable appearance during development without a costly external programming interface. This is especially useful for small embedded products where the firmware does not need to be changed after deployment. Because OTP memory cannot be erased, revision control and production programming procedures should be planned carefully before a product reaches manufacturing. Typical applications include temperature or level control, small actuator controllers, appliance interfaces, discrete sensor-conditioning systems, and simple embedded control panels. The 14 I/O count provides useful connectivity for switches, indicators, relays, and digital sensors, while the 125-byte RAM can hold variables and short-lived state. Designers should verify peripheral availability, interrupt requirements, and timing behavior against the manufacturer datasheet for each selected function. The main design consideration is programming and validation. Develop the firmware on the target Z8 architecture, test production programming in a repeatable fixture, and verify every programmed image before release. The 4.5 V to 5.5 V supply requirement also means that the power source and all attached I/O devices must remain within compatible voltage levels. A 5 V supply with suitable local decoupling is the straightforward baseline when designing around this controller. This product page combines the core Z86E0412PEG specifications, commercial sourcing guidance, package information, application guidance, and the available drop-in comparison. It is designed to help engineers identify the correct Z8 controller, plan programming and PCB assembly, and determine whether the directly replaceable Z86E0412PEC variant satisfies the project requirements.

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Z86E0412SEG

Z86E0412SEG - 8-Bit 12MHz 1KB OTP MCU | Zilog

Zilog Z86E0412SEG is an 8-bit Z8 microcontroller with a 12 MHz clock, 1 KB of one-time-programmable memory, 14 I/O ports, and an 18-pin SOIC package. It operates from a 4.5 V to 5.5 V supply and is specified for operation from -40°C to +105°C. The Z86E0412SEG combines a compact OTP MCU architecture with the Z8 family’s integrated peripherals and low-cost single-chip design. What is an 8-bit microcontroller? An 8-bit microcontroller is a programmable integrated circuit containing a central processing unit, nonvolatile program memory, data memory, and input/output peripherals on one chip. The Z86E0412SEG belongs to the Z8 family of MCUs, a semiconductor subtype of embedded controller. Its OTP program memory permits a device to be programmed once during manufacturing or prototype preparation, making it practical for cost-sensitive products with stable firmware. The principal characteristics include an 8-bit processor, 12 MHz operating speed, 1 KB of OTP memory organized as 1K × 8, and 14 I/O ports. Its 4.5 V to 5.5 V operating range accommodates conventional 5 V equipment, while the -40°C to +105°C rating supports industrial environments. The 18-pin SOIC-18, 300 mil package is also identified by some listings as an 18-pin plastic DIP-family package. Z86E0412SEG is a Zilog Z8 CISC controller intended for compact embedded-control tasks. One-time-programmable storage distinguishes it from field-reprogrammable Flash MCUs, eliminating the need for nonvolatile memory that can be updated after programming. The 14 I/O ports provide external control and monitoring points, while the 12 MHz clock supports time-dependent control, debouncing, signal sequencing, and communication tasks within the device’s stated limits. Typical applications include appliance controllers, small motor or relay-control boards, industrial interface modules, lighting controllers, instrumentation peripherals, and legacy equipment upgrades. Its combination of limited memory, 14 I/O ports, and a wide temperature range is well suited to simple control systems where the application does not require large firmware images or extensive connectivity. The OTP architecture is particularly appropriate when firmware will not change after deployment. Designers should verify oscillator configuration, pin multiplexing, and programming requirements against the Zilog datasheet before committing the PCB footprint. Because OTP memory cannot be rewritten, firmware validation and device programming must be complete before production programming. Decoupling should follow the manufacturer’s recommended power-network layout, and unused inputs should be configured to avoid unnecessary current consumption. This product page consolidates the Z86E0412SEG specifications, package information, family alternatives, and application-oriented design guidance. It also identifies the practical migration limits associated with one-time-programmable memory, helping engineers distinguish true family options from MCU replacements that require software and hardware requalification.

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