Z86C9325VSG - 25MHz 8-Bit ROMless MCU | Zilog
부품 번호: Z86C9325VSG ✓ 활성Z86C9325VSG 개요
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.
드롭인 대체품: Z86C9325VSG — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
Z86C9325VSC
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
Z86C9325VSG 최대 정격 & 전기적 특성
| Product Type | 8-bit ROMless Microcontroller |
| Manufacturer | Zilog |
| Series | Z8 |
| 데이터 버스 폭 | 8 bit |
| Maximum Clock Speed | 25 MHz |
| 동작 공급 전압 | 2.97 V to 5.5 V |
| I/O Port Count | 24 |
| Program Memory Configuration | ROMless |
| Multiplier | 16-bit x 16-bit hardwired multiplier |
| Divider | 32-bit by 16-bit divider |
| Counter Timer Count | 3 timers |
| Timer Resolution | 16 bit |
| Package Type | 44-pin PLCC |
| Package Dimensions | 16.6 mm x 16.6 mm |
| 실장 유형 | Surface Mount |
| 수명 주기 상태 | Active |
| RoHS 상태 | RoHS |
Z86C9325VSG 16.6 mm x 16.6 mm 핀 구성 가이드
Z86C9325VSG(16.6 mm x 16.6 mm 패키지)의 핀 구성입니다. 이 디지털 IC에는 GPIO, 통신 인터페이스(UART, SPI, I2C), 전원 핀이 포함되어 있습니다. 대체 핀 기능과 구성 옵션은 제조사 데이터시트를 참조하십시오. 임베디드 시스템 설계와 PCB 레이아웃에 필수적입니다.
다음에 대한 상세 핀아웃 데이터 없음: Z86C9325VSG.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
Z86C9325VSG 적합 용도: 6 애플리케이션s: Industrial Control Panels, Appliance and HVAC Controllers, Communications Equipment, Counter and Timing Systems, Keypad and Human-Interface Control, Motor and Mechanism Control.
Industrial Control Panels
The Z86C9325VSG fits industrial control panels that require 24 I/O ports and real-time counter-timer resources without a large programmable logic device. Its 25 MHz Z8 core can coordinate switch inputs, indicator outputs, and timing functions, while the three 16-bit timers support periodic measurement or event sequencing. The 2.97 V to 5.5 V supply range supports mixed 3.3 V and 5 V system partitioning. Because the device is ROMless, the panel design must include suitable external program memory and a defined reset and clock arrangement. Firmware should include input debouncing, output-state initialization, and fault handling rather than relying on automatic recovery from every transient.
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Appliance and HVAC Controllers
The Z86C9325VSG is appropriate for appliance and HVAC control boards that combine several switches, sensors, displays, and electromechanical outputs. Its 24 I/O ports provide a practical interface budget, and the 25 MHz clock supports responsive state-machine control. The hardwired 16-bit by 16-bit multiplier and 32-bit by 16-bit divider can help with timing and arithmetic functions without adding a separate calculator IC. The ROMless configuration allows product variants to share a controller platform while retaining separate external-memory or firmware configurations. Designers should budget decoupled supply rails, clean reset behavior, and protection for long external wiring connected to the I/O pins.
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Communications Equipment
The Z86C9325VSG can serve as an embedded supervisory controller in communications equipment where an 8-bit processor is sufficient for configuration, status monitoring, and protocol coordination. Its 25 MHz operating speed provides more than enough bandwidth for low- and moderate-speed control tasks, while 24 I/O ports allow status and control signals to be distributed across a system. The three 16-bit counter timers can support communication timeouts, periodic polling, and activity counters. Use the Z86C93 datasheet to define clocking and external-memory behavior. In a communication chassis, isolate long cable-driven inputs, provide controlled resets, and ensure that the ROMless firmware and external memory remain synchronized during power transitions.
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Counter and Timing Systems
The Z86C9325VSG is well suited to counter and timing systems because its Z86C93 architecture includes three 16-bit counter timers, a capture register, and a fast decrement mode. These resources can support frequency measurement, elapsed-time counting, pulse capture, and repeatable control events. The 25 MHz clock provides a higher-rate timing reference than many simple 8-bit controllers, while the ROMless format allows algorithms and calibration tables to be stored in external memory. Divide the measured time range into multiple counters where necessary to prevent overflow. Validate timer input levels and edge behavior against the system signals, and keep crystal or oscillator routing compact and away from switching-regulator inductors.
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Keypad and Human-Interface Control
The Z86C9325VSG can manage keypad scanning, status indicators, and display-control signals in compact human-interface modules. Its 24 I/O ports provide enough parallel connections for matrix keys and discrete interface signals, while the 25 MHz core supports debounce timing and responsive menu logic. The three 16-bit timers provide independent timing resources for key scans, display refresh, and audible or visual alerts. A ROMless design allows interface firmware to be updated while keeping the controller in the same 44-pin PLCC footprint. Use series resistance or appropriate input conditioning for externally accessible keys, initialize all outputs to a defined state at reset, and include ESD protection according to the enclosure and connector environment.
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Motor and Mechanism Control
The Z86C9325VSG can supervise motors, solenoids, and other controlled mechanisms when the main power stage is implemented separately. The controller can decode limit switches, manage sequencing states, count motion events, and generate timed control commands through its I/O ports and 16-bit timers. Its multiplier and divider hardware supports common speed-ratio and step calculations without requiring a separate arithmetic accelerator. Since the MCU operates from only 2.97 V to 5.5 V, it should remain electrically separate from high-current motor rails. Include driver interface logic, flyback protection, and a defined safe output state after reset. Validate stall conditions and timing margins in firmware because the controller does not replace motor-driver protection circuitry.
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추천 제품 요약
엔지니어링 참조 데이터: Z86C9325VSG — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | Z86C9325VSC |
|---|---|---|
| Manufacturer | Zilog | Zilog |
| Package | 44-pin PLCC | 44-pin PLCC |
| Product Type | 8-bit ROMless Microcontroller | 8-bit ROMless Microcontroller |
| Maximum Clock Speed | 25 MHz | 25 MHz |
| Data Bus Width | 8 bit | 8 bit |
| Program Memory | ROMless | ROMless |
주요 차별점
- Verified same-footprint replacement (vs Z86C9325VSC)
- Broad 3.3 V and 5 V operating compatibility (vs Z86C9333VSG)
- Lower clock target preserves compatibility (vs Z86C9333VSG)
설계 노트
The Z86C9325VSG operates across 2.97 V to 5.5 V, but every connected memory and peripheral must share a compatible electrical interface. Place the device’s supply bypass capacitors close to the package power terminals, keep the external-memory return current within the ground plane, and avoid routing switching-node currents beneath the clock or data paths. Confirm absolute maximum, power-up, and brownout behavior in the Zilog Z86C93 datasheet before selecting external components.
Route the oscillator or clock source using short traces with a continuous ground reference and position the associated capacitors close to their assigned pins. Keep the 44-pin PLCC land pattern accessible for programming and inspection, and preserve clearances around all terminals. Because the controller is ROMless, external address, data, and control lines can be sensitive to ringing; use the datasheet timing limits to determine whether series damping or additional buffering is necessary.
Do not assume that the Z86C9325VSC and Z86C9325VSG ordering suffixes change electrical performance; the verified comparison identifies matching package, terminal, and functional characteristics. The opposite risk is assuming every similarly named Z8 device is interchangeable: Z86C9333VSG is listed at up to 33 MHz and with a 4.5 V to 5.5 V supply range. Validate clock, voltage, memory interface, reset behavior, and firmware before approving any substitution.
규정 준수 정보
The LCSC product record identifies the Z86C9325VSG as RoHS compliant. No specific AEC-Q100 qualification, REACH declaration, halogen-free designation, or conflict-minerals statement is identified.
