Z8673312SSG - 8-Bit 12MHz OTP Microcontroller | Zilog
部品番号: Z8673312SSG ✓ 生産中Z8673312SSG 概要
A microcontroller is a programmable semiconductor that integrates a processor core, memory, and peripheral functions onto one device. The Z8 belongs to the broader embedded-controller hierarchy: Z8 8-bit MCU → Z80-based core → embedded microcontroller → embedded semiconductor. Such devices are used where a compact controller must execute firmware, read inputs, control outputs, and manage basic timing or communications without a separate processor and external program-memory device.
The Z8673312SSG's primary characteristics are its 12 MHz maximum clock frequency, 8 KB OTP program memory, 8-bit architecture, and 28-pin SOIC package. OTP memory permits one-time configuration of operating firmware, making the device useful for production controllers where final programmed code must remain inside the device without allowing routine field updates. Its 28-pin SOIC footprint also supports conventional surface-mount assembly and prototyping workflows.
The Z8 architecture supports compact embedded-control designs rather than high-compute workloads. Its 8-bit bus architecture and 12 MHz clock are appropriate for digital control, sequence control, simple user-interface handling, and peripheral coordination. Because OTP program memory cannot be rewritten after programming, firmware validation and manufacturing provisioning should occur before the device reaches the end user.
Typical uses include industrial equipment interfaces, appliance controllers, small motor-control modules, sensor-conditioning systems, and compact embedded products. The commercial-grade part can be used in designs where the operating environment remains within its specified commercial-temperature limits. For mains-powered or battery-powered products, designers should account for the stated 5 V operating supply and validate timing, power, and I/O requirements in the completed system.
A critical design consideration is the one-time-programmable nature of the 8 KB program memory. Firmware must fit within 8 KB, include all required interrupt and peripheral routines, and be fully tested before programming. The complete pin description, electrical limits, oscillator connections, and programming procedure should be taken from the manufacturer datasheet before assigning PCB signals or defining the power architecture.
This product page organizes the Z8673312SSG's core specifications, verified package information, commercial sourcing path, compatible replacement data, and practical implementation guidance. It also distinguishes confirmed drop-in interchangeability from generic functional similarity, helping engineers make faster PCB reuse decisions without confusing an exact replacement with merely comparable microcontroller families.
ドロップイン代替品: Z8673312SSG — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
Z8673312SSC
✅ ドロップイン📋 参考代替品（カタログ未掲載）
Z8673312SSG 最大定格＆電気的特性
| Microcontroller Type | 8-bit Z8 microcontroller |
| Processor Core | Z80 |
| 最大クロック周波数 | 12 MHz |
| データバス幅 | 8 bit |
| Program Memory Type | OTPROM |
| Program Memory Size | 8 KB (8K x 8) |
| 電源電圧 | 5 V |
| Package Type | 28-pin SOIC |
| Package Height | 2.44 mm |
| Package Length | 18 mm |
| 実装スタイル | SMD/SMT |
| Temperature Grade | Commercial |
Z8673312SSG 18 mm ピン配置ガイド
Z8673312SSG (18 mm パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: Z8673312SSG.
詳細は データシート をご参照ください。
主な用途
Z8673312SSG の用途: 6 件s: Industrial Equipment Interface Controller, Appliance Sequence Controller, Sensor Conditioning and Data Acquisition, Small Motor and Relay Control, Smart Home Peripheral Controller, Fixed-Function Programmable Controller.
Industrial Equipment Interface Controller
The Z8673312SSG fits compact industrial interface modules that translate switch, sensor, and actuator signals into a deterministic control sequence. Its 12 MHz Z80-based core provides the processing rate for basic state machines, debouncing, timing, and peripheral coordination, while the 8 KB OTPROM can hold a fixed application program. Because OTP cannot be rewritten after programming, the production firmware should be validated before programming. The 28-pin SOIC package also permits compact, serviceable surface-mount assemblies.
おすすめ
Appliance Sequence Controller
Z8673312SSG is appropriate for appliances requiring fixed mode logic, timing, and discrete output control. Its 8-bit architecture and 12 MHz clock can execute the main state machine, while 8 KB of OTPROM provides space for production-only operating code. The device avoids a continuously rewritable program store, which can simplify controlled manufacturing once the appliance firmware has been qualified. Use the manufacturer datasheet to confirm timer, I/O, reset, and supply requirements.
おすすめ
Sensor Conditioning and Data Acquisition
The Z8673312SSG can manage low-complexity sensor acquisition, threshold evaluation, and data conditioning in a compact embedded module. Its 12 MHz clock supports deterministic digital processing, and the 8-bit bus suits straightforward sensor and switch interfaces. The 8 KB OTP memory is best suited to fixed acquisition logic rather than applications requiring frequent firmware revisions. Confirm analog-input availability and electrical limits in the manufacturer datasheet before assigning analog sensor signals.
おすすめ
Small Motor and Relay Control
Z8673312SSG is suitable for basic motor, relay, and solenoid sequencing where an 8-bit control engine is sufficient. The 12 MHz operating frequency supports responsive state-machine logic, while the 28-pin SOIC package leaves a practical number of connections for control inputs and driver-command outputs. External transistors, flyback protection, and isolation remain necessary where inductive loads are involved. Confirm output-drive limits and timing margins in the manufacturer datasheet.
おすすめ
Smart Home Peripheral Controller
The Z8673312SSG can serve as a dedicated controller for a smart-home peripheral such as a keypad, relay interface, or status panel. Its 8 KB OTPROM accommodates a fixed user-interface or device-control program, and the 12 MHz clock supports scanning and serial-state handling. The commercial-grade part is best considered for controlled indoor products rather than harsh environments. Review the complete peripheral list and package-level electrical limits before finalizing the design.
おすすめ
Fixed-Function Programmable Controller
Z8673312SSG is appropriate when production programming is acceptable and the end product should operate from immutable firmware. The 8K x 8 OTPROM provides a defined code-storage limit for repeatable manufacturing, and the 8-bit Z80-based architecture supports compact control logic. This is useful for dedicated products where field updates are unnecessary or undesirable. Create a programming and traceability procedure that validates each programmed device before it enters the assembly line.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: Z8673312SSG — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | Z8673312SSC |
|---|---|---|
| Package | 28-pin SOIC | 28-pin SOIC |
| Brand | Zilog | Zilog |
| Microcontroller Type | 8-bit Z8 microcontroller | Z8 8-bit microcontroller |
| Processor Core | Z80 | Z80 |
| Maximum Clock Frequency | 12 MHz | 12 MHz |
| Program Memory | 8 KB OTPROM (8K x 8) | 8 KB OTPROM (8K x 8) |
| Data Bus Width | 8 bit | 8 bit |
| Supply Voltage | 5 V | 5 V |
| Mounting Style | SMD/SMT | SMD/SMT |
主な差別化要因
- Confirmed no-modification replacement （vs Z8673312SSC)
- Compact 8-bit control platform （vs Z8673312SSC)
- Production-oriented immutable firmware （vs Z8673312SSC)
設計ノート
Treat the 8 KB OTPROM as a one-time manufacturing decision, not as conventional flash memory. Complete functional testing, bootloader requirements, and firmware change control before programming production devices. The available code space is 8K x 8 bits, so interrupt vectors, application logic, tables, and configuration constants must all fit within the same program-memory limit.
Assign every one of the 28 physical pins using the manufacturer pin-description table before releasing artwork. Do not infer power, ground, oscillator, programming, reset, or I/O functions from a generic SOIC drawing. Place the device's required support components close to their associated pins and follow the datasheet layout for decoupling and oscillator connections to preserve signal and power integrity.
The listed operating supply is 5 V, so design the rail around that requirement rather than assuming a lower-voltage core. Confirm absolute maximum and recommended supply limits in the manufacturer datasheet, provide adequate local decoupling, and account for startup current before sizing the supply. Any relay, motor, or solenoid load should use separate driver circuitry rather than relying directly on MCU pins.
コンプライアンス情報
The device is identified as commercial grade. RoHS, REACH, lead-free, halogen-free, and conflict-minerals declarations must be confirmed from the current Zilog product documentation or declaration.
