Z86C9116PEG - 8-Bit 16MHz ROMless MCU | Zilog
MPN： Z86C9116PEG ✓ 啟用中Z86C9116PEG 概覽
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.
直接替換替代品，適用於 Z86C9116PEG — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： Z86C9116PEG （相同外形與佔位） — 差異在於 I/O Port Count, Package Type, Program Memory.
Z86C9116PEC
✅ 直接替換📋 參考替代品（不在目錄中）
Z86C9116PSG
✅ 直接替換聯絡詢價
查看資料表 →Z86C9116PEG 最大額定值與電氣特性
| Product Type | 8-bit ROMless microcontroller |
| Processor Family | Zilog Z8 |
| Maximum Clock Speed | 16 MHz |
| 資料匯流排寬度 | 8 bit |
| 工作電源電壓 | 4.5 V to 5.5 V |
| I/O Port Count | 32 ports |
| Total Pin Count | 40 pins |
| Package Type | CDIP, DIP-40 |
| 安裝方式 | Through-hole |
| Program Memory | ROMless; external memory required |
| Operating Range | Industrial |
| 生命週期狀態 | Active |
Z86C9116PEG cdip, dip-40 腳位配置指南
Z86C9116PEG（cdip, dip-40 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： Z86C9116PEG.
請參閱 資料表 以查看完整腳位配置。
典型應用
Z86C9116PEG 適用於 6 應用s: Industrial Keypad and Panel Controller, Programmable Timer and Sequencer, External-Memory Embedded Controller, Instrumentation Signal Interface, Access-Control and Reader Interface, Legacy Test and Measurement Fixture.
Industrial Keypad and Panel Controller
The Z86C9116PEG fits keypad scanners and compact operator panels that require many discrete inputs and outputs without a higher-performance processor. Its 32 I/O ports can support key scanning, status indicators, interlocks, and control outputs, while the 16 MHz clock provides deterministic handling of debouncing and panel tasks. The 4.5 V to 5.5 V supply simplifies interface design in traditional industrial control electronics. Because the controller is ROMless, a production design must route an external memory interface, so firmware updates can be managed independently of the processor assembly. The DIP-40 footprint also supports through-hole industrial daughterboards and facilitates replacement in serviceable equipment.
推薦
Programmable Timer and Sequencer
The Z86C9116PEG can implement deterministic timing and step-sequence control for industrial machinery using its 16 MHz 8-bit processor and 32 available I/O ports. Outputs can represent sequence stages, while inputs can accept start, stop, reset, and interlock signals. The ROMless architecture is useful when multiple machines share similar hardware but require different timing tables stored in external memory. A designer should confirm timer resources, interrupt behavior, and clock configuration in the Zilog Z86C9116 datasheet before assigning every external signal. The 40-pin CDIP package provides a practical through-hole construction for control modules requiring straightforward assembly and field replacement.
推薦
External-Memory Embedded Controller
The Z86C9116PEG is suited to embedded subsystems where firmware is stored externally and must be revised independently of the controller. Its ROMless architecture lets the designer select memory capacity according to application requirements rather than accepting a fixed internal ROM size. The 16 MHz clock and 8-bit architecture are appropriate for supervisory logic, configuration management, and protocol handling around a larger control system. The main engineering cost is the external address and data interface, which requires careful PCB routing and a defined memory map. The 32 I/O ports provide flexibility for status reporting and peripheral control even after memory and clock pins are allocated.
推薦
Instrumentation Signal Interface
The Z86C9116PEG can serve as a low-cost interface controller in legacy instrumentation that requires many digital inputs, discrete outputs, and external firmware storage. Its 32 I/O ports are useful for range selection, relay control, status flags, and communication handshakes, while the 16 MHz 8-bit processor can manage measurement sequencing. A ROMless implementation allows calibration and configuration tables to be stored in external memory, which simplifies product variants. Engineers should ensure that the external-memory timing, reset behavior, and available clock configuration meet the instrument's acquisition timing requirements. The DIP-40 package suits instrument daughterboards using through-hole assembly.
推薦
Access-Control and Reader Interface
The Z86C9116PEG is appropriate for access-control readers and credential-system interfaces that combine several inputs with alarm, lock, and indicator outputs. Its 32 I/O ports can organize reader signals, request-to-exit inputs, door-state feedback, and status lamps, while the 16 MHz clock supports responsive event handling. The 4.5 V to 5.5 V operating supply is compatible with conventional 5 V control logic. Firmware can be placed in external memory to support multiple reader configurations or later updates without changing processor hardware. The design must include appropriate electrical protection for long cable runs, and the final pin assignment should follow the manufacturer pin-description table.
推薦
Legacy Test and Measurement Fixture
The Z86C9116PEG is well suited to legacy test fixtures requiring a flexible pin count, external firmware, and straightforward through-hole assembly. Its 32 I/O ports can control fixture relays, connect test points, read switches, and communicate fixture status, while the ROMless architecture enables reusable firmware across different board variants. The 16 MHz processor provides ample control capability for sequencing ordinary low-speed measurements. Test engineers should verify reset timing, external-memory access timing, and input levels before connecting automated equipment. The 40-pin DIP package also makes replacement and socket-based maintenance practical on long-life industrial test systems.
推薦
推薦產品摘要
工程參考資料，適用於 Z86C9116PEG — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | Z86C9116PEC | Z86C9116PSG |
|---|---|---|---|
| Brand | Zilog | Zilog | Zilog |
| Package | CDIP, DIP-40 | CDIP, DIP-40 | DIP-40 |
| Clock Speed | 16 MHz | 16 MHz | 16 MHz |
| Program Memory Architecture | ROMless | ROMless | ROMless |
主要差異化特點
- Plastic DIP construction for the target ordering suffix (對比Z86C9116PEC)
- Documented 32-port industrial controller configuration (對比Z86C9116PSG)
- Exact Z86C9116 family orderable configuration (對比Z86C9116PEC)
設計說明
Reserve the external program-memory interface and its associated control pins on the PCB even when the prototype initially uses a simple firmware source. The ROMless architecture means address, data, and control routing is part of the final controller circuit rather than an optional expansion. Follow the Zilog Z86C9116 pin-description table for every signal and keep the clock and reset traces short, away from switching-node copper.
Design the 4.5 V to 5.5 V supply rail with enough decoupling for the controller and attached external memory. Place the local ceramic bypass capacitor close to the device's power pins and use the manufacturer's recommended power and ground pin connections. Because several pins may share supply or ground functions, verify the current path across the DIP-40 footprint rather than assuming that every adjacent power position can be treated independently.
Use the DIP-40 pin-1 convention shown in the package drawing, with pin 1 at the top-left when the notch faces upward. Confirm socket orientation, external-memory address lines, oscillator components, and reset polarity before fabrication. For long I/O cables, add suitable protection or buffering at the board edge so external switching and ESD events do not propagate directly into the controller pins.
Do not treat Z86C9116PEC or Z86C9116PSG as unconditional substitutions without checking the full electrical and environmental tables. The documented PEC interchange uses ceramic rather than plastic DIP construction, while the PSG is described as similar but not identical. Review clock, supply, temperature, package, and qualification constraints, and preserve the original manufacturer ordering suffix whenever possible.
合規資訊
The device is listed as an industrial 8-bit ROMless microcontroller. Specific environmental, material, and automotive qualification declarations are not stated in the cited product information.
