Z86E0412PEG - 8-Bit 12MHz OTP MCU | Zilog
Référence : Z86E0412PEG ✓ ActifZ86E0412PEG Présentation
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.
Alternatives de remplacement direct pour Z86E0412PEG — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Z86E0412PEC
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
Z86E0412PEG Valeurs maximales et caractéristiques électriques
| Product Type | 8-bit CMOS microcontroller |
| Processor Core | Z8 core |
| Fréquence d'horloge maximale | 12 MHz |
| Program Memory | 1 KB (1K x 8) OTP |
| Data Memory | 125 x 8 bytes RAM |
| Number of I/O Pins | 14 pins |
| Number of 8-Bit Timers | 2 timers |
| Operating Supply Voltage Range | 4.5 V to 5.5 V |
| Plage de température de fonctionnement | -40°C to +105°C |
| Boîtier | 18-pin DIP |
| Architecture | Z8 single-chip microcontroller |
| Process Technology | CMOS |
| Program Memory Type | One-time programmable (OTP) |
| Clock/Oscillator Designation | XTEMP |
| Statut RoHS | Compliant |
Guide de configuration des broches du Z86E0412PEG 18-pin dip
Configuration des broches du Z86E0412PEG (boîtier 18-pin dip). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour Z86E0412PEG.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
Z86E0412PEG convient pour 6 applications: Temperature Control Panel, Liquid Level Controller, Appliance User Interface, Small Actuator Controller, Digital Sensor Interface, Prototype Control Module.
Temperature Control Panel
The Z86E0412PEG fits a compact temperature-control panel because its 12 MHz Z8 core can execute a control state machine while 14 I/O lines connect switches, indicators, and discrete control signals. The 125-byte RAM provides working storage for sampled values, timing counters, and operating states. Production programming is practical for a fixed-function appliance controller because the 1 KB OTP program memory becomes permanent after programming. Designers should divide the firmware into acquisition, filtering, control, and output sections, then validate worst-case timing and ensure every external signal respects the 4.5 V to 5.5 V supply limits.
Recommandé
Liquid Level Controller
The Z86E0412PEG can supervise a simple pump or valve system using discrete level sensors and relay-driving stages. Its 14 I/O pins offer sufficient pin count for sensor inputs, status LEDs, mode buttons, and actuator commands, while the 8-bit architecture keeps the firmware straightforward for threshold logic, debouncing, delays, and fault handling. The 12 MHz clock supports responsive multiplexing of multiple digital inputs. Because the controller has only 1 KB of OTP memory and 125 bytes of RAM, the application should avoid oversized buffers and should use compact state representation. A regulated 5 V supply and local decoupling are required.
Recommandé
Appliance User Interface
The Z86E0412PEG is suitable for a dedicated appliance interface when the user experience consists of buttons, LEDs, buzzers, and discrete status signals. The 14 available I/O pins support shared input scanning and multiplexed indicator control, and the 12 MHz Z8 core can implement debouncing, long-press handling, indicator patterns, and simple menu logic. Its 1 KB OTP program memory favors a fixed, production-oriented product rather than a field-updateable consumer appliance. Confirm the required pin functions, reset behavior, and operating limits in the manufacturer datasheet, and program the approved firmware image under a controlled production process.
Recommandé
Small Actuator Controller
The Z86E0412PEG can act as the central controller for a compact actuator assembly using digital command inputs and discrete output stages. The 8-bit processor is appropriate for sequencing, interlocks, timing, and fault latching, while the 12 MHz operating frequency provides ample headroom for deterministic control loops without complex high-end peripherals. Fourteen I/O lines allow the controller to interface with limit switches, enable inputs, and status indicators. Keep the firmware modular so sensor handling and actuator timing remain testable, and account for the one-time-programmable memory by validating all production images before they are written to the device.
Recommandé
Digital Sensor Interface
The Z86E0412PEG can gather discrete signals from switches, contact sensors, or simple digital sensor outputs and translate them into system actions. Its 14 I/O pins permit several inputs alongside status and actuator outputs, while 125 bytes of RAM are sufficient for short histories, counters, and sampled states. The 12 MHz Z8 core supports efficient input scanning and debounce routines without requiring a separate processor. The controller is most appropriate when the sensor interface is digital and the product does not need field-updatable firmware. Review peripheral assignments and pin multiplexing in the manufacturer datasheet, particularly for reset, clock, and programming functions.
Recommandé
Prototype Control Module
The Z86E0412PEG is useful for prototyping dedicated embedded-control logic where the final product will use fixed firmware and a through-hole footprint. Engineers can exercise button inputs, relay sequences, timing functions, and status signaling on the Z8 platform before committing the program to production devices. The DIP-18 package simplifies breadboard and socket-based assembly, while the 12 MHz CPU provides quick execution for development iterations. Because the target uses OTP memory, prototypes should be assembled on programmable development hardware or sacrificial devices whenever possible. Keep the eventual production programmer interface and connector layout separate from the operational control circuitry.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour Z86E0412PEG — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | Z86E0412PEC |
|---|---|---|
| Brand | Zilog | Zilog |
| Package | 18-pin DIP | 18-pin DIP |
| Processor Core | Z8, 8-bit | Z8, 8-bit |
| Maximum Clock Frequency | 12 MHz | 12 MHz |
| Program Memory | 1 KB (1K x 8) OTP | 1 KB (1K x 8) OTP |
| RAM | 125 x 8 bytes | 125 x 8 bytes |
| Number of I/O Pins | 14 pins | 14 pins |
| Operating Supply Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V |
| Programming Interface | One-time programmable | One-time programmable |
Principaux différenciateurs
- Directly replaceable DIP option (vs Z86E0412PEC)
- Production-oriented OTP architecture (vs Z86E0412PEC)
- Broad specified operating temperature (vs Z86E0412PEC)
Notes de conception
Treat OTP programming as a one-way manufacturing step. Build and test the firmware on compatible Z8 hardware or sacrificial devices, verify the exact binary image, and record its checksum before programming production parts. A programming error cannot be corrected by erasing the memory. The programming fixture should also enforce correct orientation, supply levels, and pin contact because an 18-pin DIP can be inserted in the wrong orientation.
Use the manufacturer pin-description table to assign the DIP-18 footprint and preserve the package outline and pin numbering. The device has 14 I/O pins, but power, ground, clock, reset, and programming-related assignments must come from the official pin table rather than assumption. Provide local supply decoupling close to the power pins and route high-current actuator or relay paths separately from sensitive control traces.
Design the board around the specified 4.5 V to 5.5 V operating range and use a regulated 5 V source for the simplest implementation. Confirm that connected sensors, indicators, and input stages do not drive the MCU pins beyond its electrical limits. If relays or other inductive loads are used, provide suitable driver and flyback circuitry rather than powering or switching those loads directly through MCU pins.
Keep the clock and programming-related routes short, follow the reference layout in the manufacturer documentation, and place input conditioning close to the associated MCU pins. Because the device offers limited RAM, avoid design methods that require large buffering or stack-heavy routines. Compact state tables and direct I/O access can improve firmware predictability while preserving memory for timing, counters, and system status.
Informations de conformité
The component listing identifies the Z86E0412PEG as RoHS compliant. No separate REACH, lead-free, halogen-free, conflict-minerals, or automotive qualification statement was established.
