Z86C9116FSC 16MHz ROMless 8-Bit MCU | Zilog
料号： Z86C9116FSC ✗ 停产Z86C9116FSC 概述
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.
直接替换替代料： Z86C9116FSC ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
该产品暂无直接替换替代料。
请求替代料Z86C9116FSC 最大额定值与电气特性
| Microcontroller Type | 8-bit ROMless microcontroller |
| Architecture | Z8 |
| 最大时钟频率 | 16 MHz |
| Program Memory | ROMless; external program memory required |
| RAM | 236 bytes |
| I/O Count | 32 I/O |
| Timer Count | 2 8-bit timers |
| Communication Interface | UART |
| 封装 | 44-LQFP (10 mm x 10 mm) |
| 引脚数量 | 44 pins |
| 安装类型 | Surface mount |
Z86C9116FSC 44-lqfp (10 mm x 10 mm) 引脚配置指南
Z86C9116FSC（44-lqfp (10 mm x 10 mm) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： Z86C9116FSC.
请参阅 数据手册 以查看完整引脚配置。
典型应用
Z86C9116FSC 适用于 6 应用s: Industrial Appliance Controller, Serial Communication Module, Keypad and Display Interface, Relay and Sequencer Control, Smart Sensor Interface, Programmable Logic Controller.
Industrial Appliance Controller
The Z86C9116FSC fits a compact appliance-control board that coordinates user inputs, indicators, actuators, and serial diagnostics. Its 16 MHz Z8 core provides control-loop processing, while two verified 8-bit timers support periodic tasks and timing functions. The 32 I/O positions offer substantial digital connectivity, and the UART permits a service interface to a higher-level controller. Because the device is ROMless, application code can be stored in external program memory and loaded during manufacturing, which offers a different provisioning model from a mask-ROM MCU.
推荐
Serial Communication Module
The Z86C9116FSC can serve as the protocol controller in a small communications module that receives commands over its UART and operates digital I/O on the external bus. The verified 16 MHz clock provides computational headroom for framing, validation, and state-machine processing, while 236 bytes of RAM can support short packet buffers. External program memory separates firmware storage from the MCU itself, making this arrangement useful where update policy or manufacturing flexibility matters. Designers should verify UART electrical levels and timing from the full datasheet before connecting it to a transceiver.
推荐
Keypad and Display Interface
A Z86C9116FSC is appropriate for a keypad, LED, or small display interface that requires many digital signals and deterministic periodic updates. Its 32 I/O pins can distribute scanning and indicator-control functions, while the two 8-bit timers can support scanning intervals and timeout handling without excessive software polling. The UART provides an optional connection to a host processor or service console. External program memory permits application firmware to be loaded at production, while the 236-byte RAM supports a bounded working set. Display-specific voltage and timing requirements remain subject to the missing electrical specifications.
推荐
Relay and Sequencer Control
The Z86C9116FSC can implement a deterministic relay, lamp, or step-sequence controller for compact equipment. The two verified 8-bit timers are useful for timing activation intervals, debounce periods, and interlock delays, while the 32 I/O pins provide direct connections to control outputs and switch inputs. The 16 MHz processor can coordinate state machines and fault responses. Since the MCU is ROMless, each manufactured unit can receive the same externally stored application program, supporting production flexibility. Relay drivers, isolation, and flyback protection must be designed separately around the MCU.
推荐
Smart Sensor Interface
The Z86C9116FSC can act as a small sensor-conditioning and routing controller in a compact IoT or embedded sensor node. Its 32 I/O lines can accommodate discrete sensors, thresholds, indicators, and configuration switches, while the UART allows data transfer to a radio, gateway, or host processor. The two timers support periodic sampling and communication timing, and the 236-byte RAM is adequate for short-lived measurements and protocol state. External program memory enables application code to be provisioned during assembly. Power-conscious deployments should wait for verified operating-current data before estimating battery life.
推荐
Programmable Logic Controller
The Z86C9116FSC can serve as the processing element of a small PLC or embedded sequencer that reads discrete inputs, executes control logic, and drives outputs. The Z8 architecture operates at 16 MHz, the two 8-bit timers support repetitive scheduling, and the UART enables programming, monitoring, or connection to a human-machine interface. Thirty-two I/O positions make the device relevant for compact machines with a modest signal count. Because program memory is external, the complete controller board must include that memory and its bus routing. Functional safety and long-term availability should be assessed separately for deployed industrial equipment.
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推荐产品汇总
工程参考数据： Z86C9116FSC ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 |
|---|---|
| Package | 44-LQFP (10 mm x 10 mm) |
| Brand | Zilog |
| Architecture | Z8 |
| CPU Width | 8-bit |
| Maximum Clock Frequency | 16 MHz |
| Program Memory | ROMless; external program memory required |
| RAM | 236 bytes |
| I/O Count | 32 I/O |
| Timers | 2 8-bit timers |
| Serial Interface | UART |
关键差异点
- ROMless program-memory architecture supports external firmware storage （对比 ROM-based 8-bit MCUs)
- 32 I/O positions in a compact controller （对比 Lower-I/O 8-bit MCUs)
- Dedicated timing and serial resources for compact embedded control （对比 Minimal GPIO-only controllers)
设计说明
Treat the external program-memory interface as a dedicated high-speed routing problem. Keep address, data, and control traces short, provide continuous return paths, and place any required termination or decoupling exactly where the manufacturer reference design specifies. Confirm the complete 44-LQFP lead assignment before routing because the supplied verified sources establish the package and pin count but do not publish an individual signal list.
Validate the final supply-voltage range and operating-current limits from the manufacturer datasheet before designing the power tree. The verified data does not include supply current, standby current, or voltage limits. Do not infer those values from the 16 MHz clock rating; instead size the regulator and local decoupling using the worst-case clock, I/O, and external-memory activity in the completed system.
Place required clock, reset, and decoupling components close to their associated pins and preserve the package's exposed thermal and layout requirements once confirmed from the datasheet. If the external memory bus includes a clock signal, maintain a short and properly referenced route and test the finished board for signal integrity at the intended 16 MHz operating condition and across the external-memory access pattern.
Do not substitute a related Z86C9116 order code solely because it uses the same family name. Package suffix, external-memory interface, programming signals, and peripheral mapping must all match. The supplied cross-reference results contain search tools and the original part listing but no verified pin-compatible replacement, so an unverified candidate should not be released as a drop-in substitute without a complete footprint and pinout comparison.
合规信息
The supplied verified results do not provide part-specific RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive qualification declarations. AEC-Q100 is marked not_applicable because the supplied data does not identify this product as an automotive-qualified device; this is not an automotive qualification claim.
