Z86C9116FEG - 16MHz ROMless 8-Bit MCU | Zilog | Industrial
Référence : Z86C9116FEG ✓ ActifZ86C9116FEG Présentation
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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| Microcontroller Type | 8-bit Z8 ROMless microcontroller |
| Operating Frequency | 16 MHz |
| Program Memory | ROMless; external program memory required |
| RAM | 236 x 8 bytes |
| General-Purpose I/O Pins | 24 |
| Serial Interface | UART/USART |
| Supply Voltage Range | 4.5 V to 5.5 V |
| Plage de température de fonctionnement | -40°C to +105°C |
| Boîtier | 44-LQFP (10 x 10 mm) |
| Type de montage | Surface Mount |
| Core Architecture | Z8 8-bit |
| Product Family | Z8 ROMless microcontroller |
| Memory Architecture | External program memory with internal RAM |
| Communication | UART/USART |
| Industrial Temperature Qualification | Operating range specified as -40°C to +105°C |
Guide de configuration des broches du Z86C9116FEG 44-lqfp (10 x 10 mm)
Configuration des broches du Z86C9116FEG (boîtier 44-lqfp (10 x 10 mm)). 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 Z86C9116FEG.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
Z86C9116FEG convient pour 6 applications: Industrial Automation Controller, Serial Protocol Bridge, Appliance Control Board, Data Acquisition Module, Instrumentation and Test Equipment, LED Display Controller.
Industrial Automation Controller
The Z86C9116FEG fits compact industrial automation modules that need a reliable 8-bit control engine, 24 general-purpose I/O pins, and UART/USART connectivity. Its 16 MHz operating rate supports supervisory control, state-machine execution, sensor polling, and actuator sequencing, while the 4.5 V to 5.5 V supply range simplifies integration with 5 V industrial logic. The industrial temperature specification of -40°C to +105°C supports equipment operating across widely varying ambient conditions. Designers should reserve external program memory, validate the complete pin map, and provide local decoupling close to the power pins.
Recommandé
Serial Protocol Bridge
The Z86C9116FEG is suitable for a serial protocol bridge because it includes UART/USART connectivity and 24 general-purpose I/O pins alongside a 16 MHz Z8 core. Firmware can maintain protocol state, buffer incoming data, format responses, and coordinate between two serial devices without requiring a high-performance processor. The ROMless architecture allows application code to remain in external memory, which can be useful when code updates or memory selection are important. A practical design should confirm the device's external-memory interface and UART electrical requirements from the datasheet.
Recommandé
Appliance Control Board
The Z86C9116FEG can serve as the central controller in an appliance or equipment board requiring multiple discrete inputs and outputs. Its 24 general-purpose I/O pins can be assigned to switches, indicators, relays, interlocks, and status feedback, while UART/USART supports communication with a display, keypad, or service interface. The 16 MHz operating rate is appropriate for real-time control tasks that do not require a high-end processor. Because the MCU is ROMless, the appliance designer must select and interface external program memory correctly.
Recommandé
Data Acquisition Module
The Z86C9116FEG is appropriate for a compact data-acquisition module when the system requires deterministic 8-bit processing, external program storage, and serial reporting. Its 24 I/O pins can support discrete sensor channels, control outputs, status LEDs, and interface signals, while the UART/USART can stream collected data to a host. The 4.5 V to 5.5 V operating range is compatible with 5 V sensor and interface circuitry when appropriate level matching is used. Designers should account for external-memory timing, grounding, decoupling, and any analog conditioning ahead of the MCU inputs.
Recommandé
Instrumentation and Test Equipment
The Z86C9116FEG can be used in compact instrumentation and test equipment as a supervisory controller for front-panel controls, status indicators, calibration functions, and host communications. The 16 MHz Z8 core provides useful throughput for menu handling, sequencing, measurement bookkeeping, and serial command processing, while 24 I/O pins offer flexible discrete connectivity. Its -40°C to +105°C industrial range supports laboratory and industrial environments. The external-memory architecture gives designers flexibility in code storage, but the complete memory-interface and timing requirements must be verified before release.
Recommandé
LED Display Controller
The Z86C9116FEG is suited to an LED display controller that coordinates indicator states, refresh sequencing, button inputs, and serial configuration commands. The 24 general-purpose I/O pins can drive discrete display-control signals and read user controls, while UART/USART provides a convenient configuration and telemetry channel. Its 16 MHz clock supports responsive state-machine and timing tasks, and the 44-LQFP package keeps the design compact on a multilayer PCB. Because the controller is ROMless, the display firmware must be stored in external program memory and its interface timing should be checked carefully.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour Z86C9116FEG — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | Z86C9116FEG |
|---|---|---|
| Package | 44-LQFP (10 x 10 mm) | 44-LQFP (10 x 10 mm) - reference target |
| Brand | Zilog | Zilog - reference target |
| Architecture | 8-bit Z8 ROMless | 8-bit Z8 ROMless - reference target |
| Operating Frequency | 16 MHz | 16 MHz - reference target |
| Program Memory | ROMless; external program memory required | ROMless; external program memory required |
| RAM | 236 x 8 bytes | 236 x 8 bytes - reference target |
| General-Purpose I/O | 24 pins | 24 pins - reference target |
| Serial Interface | UART/USART | UART/USART - reference target |
| Supply Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V - reference target |
| Operating Temperature | -40°C to +105°C | -40°C to +105°C - reference target |
Principaux différenciateurs
- ROMless 8-bit architecture with external program memory (vs ATMEGA328P-MNR)
- High pin count for compact embedded control (vs ATMEGA328P-MNR)
- Industrial ambient-temperature capability (vs Z86C9116FEG reference listing)
Notes de conception
Route the external program-memory bus, clock circuitry, reset path, UART/USART signals, and all 24 general-purpose I/O lines with short, controlled-impedance traces where applicable. Keep the MCU and memory devices close together to minimize propagation delay and signal integrity risk. Confirm the exact package pin assignments and external-memory interface requirements from the manufacturer datasheet before routing; the supplied source excerpts do not provide a complete pin map.
Design the Z86C9116FEG supply around its verified 4.5 V to 5.5 V operating range. Place local decoupling capacitors close to the device power pins and provide a clean 5 V rail with appropriate startup and reset behavior. Because the part is ROMless and may be used with external memory and communication transceivers, calculate the complete rail budget including logic, memory, and interface loads rather than rating the supply for the MCU alone.
For industrial or communications equipment, separate noisy external-memory and transceiver paths from sensitive control signals and provide a continuous ground reference. Pay particular attention to oscillator placement, reset circuitry, and UART signal routing. Use the package drawing and datasheet pin definitions to preserve adequate clearance around all 44 LQFP leads, and validate the assembled board with signal-integrity and EMC testing appropriate to the end product.
Informations de conformité
The supplied verified data identifies the device as a Zilog 8-bit ROMless microcontroller and specifies its 44-LQFP package, 16 MHz operation, RAM, I/O, UART/USART, voltage range, and industrial temperature range. It does not provide RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations.
