Z86E4412PSG - 8-Bit 12MHz 16KB OTP MCU | Zilog
部品番号: Z86E4412PSG ✓ 生産中Z86E4412PSG 概要
A microcontroller is a programmable integrated circuit that combines a processor core, memory, and peripherals on one semiconductor die. The Z8 MCU family belongs to the broader embedded-controller hierarchy, where an 8-bit MCU provides efficient control for sensors, actuators, human-interface circuits, and industrial equipment. Unlike field-programmable Flash memory, the Z86E4412PSG uses OTP memory, so its application program is permanently committed during device programming.
Key features include a 12MHz operating frequency, 16K × 8 organization for the 16KB OTP program memory, and 236 × 8 bytes of RAM. The integrated Power-On Reset helps establish a known initial controller state, while the Watchdog Timer provides a mechanism for recovering from stalled software execution. EBI/EMI expands the available external interface resources for communicating with additional memory or peripheral devices.
The Z86E4412PSG uses an 8-bit architecture optimized for embedded control rather than high-throughput computation. Its 12MHz clock provides the execution rate for supervisory loops, status monitoring, and basic user-interface tasks. The 236-byte RAM supports working variables and stack operations, although complex buffering or protocol stacks may require an external memory device connected through the external bus interface.
Typical uses include industrial control panels, building equipment, security and access peripherals, appliance controllers, motor-control interfaces, and compact embedded sensing systems. The 40-pin PDIP package is particularly useful for prototypes, through-hole industrial assemblies, and designs where a socketed controller simplifies replacement or inspection.
The primary design consideration is OTP programming. Engineers should validate the complete firmware and all configuration bytes before programming because OTP memory cannot be rewritten, and they should verify external-bus timing and peripheral assignments against the manufacturer datasheet. Supply voltage, pin-specific limits, oscillator requirements, and programming procedures are not available in the supplied source excerpts and must be confirmed from the manufacturer datasheet.
This page consolidates verified distributor and manufacturer-related source information, compares the available documented substitute, and identifies missing electrical data explicitly. It is intended to support engineering selection while preventing unverified voltage, pinout, pricing, and lifecycle assumptions from being presented as facts.
ドロップイン代替品: Z86E4412PSG — 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。
Z86E4412PSC
✅ ドロップイン📋 参考代替品（カタログ未掲載）
Z86E4412PSG 最大定格＆電気的特性
| Product Type | 8-bit embedded microcontroller |
| Processor Core | Z8 |
| 最大クロック周波数 | 12 MHz |
| Program Memory Type | One-Time Programmable (OTP) |
| Program Memory Size | 16 KB |
| Program Memory Organization | 16K × 8 bits |
| RAM Size | 236 × 8 bytes |
| Power-On Reset | Integrated |
| Watchdog Timer | Integrated |
| External Bus Interface | EBI/EMI |
| パッケージ | 40-pin PDIP |
| 実装タイプ | Through-hole |
Z86E4412PSG 40-pin pdip ピン配置ガイド
Z86E4412PSG (40-pin pdip 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: Z86E4412PSG.
詳細は データシート をご参照ください。
主な用途
Z86E4412PSG の用途: 6 件s: Industrial Control Panel, Building Equipment Controller, Access Control Peripheral, Appliance Controller, Compact Sensor Interface, Security and Surveillance Module.
Industrial Control Panel
The Z86E4412PSG fits compact supervisory control panels because its 12MHz Z8 core can execute status logic while the 236-byte RAM holds working variables and the Watchdog Timer provides a recovery path after a software fault. Its EBI/EMI interface can connect additional external memory or peripheral resources when an application exceeds the on-chip data capacity. The 40-pin PDIP package is also practical for prototypes and through-hole industrial assemblies where reworkability matters. Before production use, verify supply-voltage limits, I/O ratings, operating temperature, and oscillator requirements from the manufacturer datasheet because those values are not present in the supplied excerpts.
Building Equipment Controller
The Z86E4412PSG is suitable for building equipment that coordinates sensors, indicators, and discrete actuators through a deterministic embedded-control loop. Its 16KB OTP program memory supports a fixed controller program, while Power-On Reset establishes a known startup condition and the Watchdog Timer can restart a task after a software hang. The 8-bit Z8 core at 12MHz is appropriate for supervisory functions rather than intensive data processing. Confirm the device's electrical operating limits and environmental ratings for the installation site before using it in HVAC, access, or lighting equipment.
Access Control Peripheral
The Z86E4412PSG can manage keypad, request-to-exit, relay, or status-indicator functions in an access-control peripheral because its 12MHz core provides useful control throughput and its 16KB OTP memory accommodates fixed embedded firmware. The integrated Power-On Reset supports predictable initialization of external interface logic, and the Watchdog Timer improves recovery from firmware or peripheral stalls. The EBI/EMI interface may be useful when additional addressable devices are required. Validate absolute maximum ratings, logic thresholds, and timing requirements against the manufacturer datasheet because the supplied excerpts do not specify them.
Appliance Controller
The Z86E4412PSG is appropriate for appliance subcontrollers that sequence motors, heaters, indicators, or solenoids from a compact embedded program. Its 236-byte RAM is sufficient for bounded working sets and stack operations, while the 16KB OTP program memory supports a fixed production firmware image. The 40-pin PDIP format simplifies prototyping and socket-based serviceability compared with very small surface-mount packages. Because OTP cannot be rewritten, all firmware and configuration options should be validated before programming, and the final board should be checked against the documented supply-voltage and temperature limits.
Compact Sensor Interface
The Z86E4412PSG can serve as a local sensor-interface controller when the device must collect digital status inputs, apply control logic, and relay results to a wider system. Its 12MHz Z8 core supports responsive embedded tasks, and EBI/EMI provides a path to external bus-connected sensing or memory devices. The Watchdog Timer helps maintain dependable operation if a peripheral transaction stalls, while Power-On Reset simplifies deterministic startup. The 236-byte RAM should be checked against buffering requirements, and analog input support should not be assumed because no analog-conversion specification appears in the verified excerpts.
Security and Surveillance Module
The Z86E4412PSG can support a compact security peripheral that supervises detectors, indicators, or communication interfaces. Its 12MHz 8-bit core is well suited to event handling and supervisory logic, while 16KB of OTP memory protects a finalized application program from accidental modification. The Watchdog Timer provides an additional recovery mechanism for unattended equipment. A complete design still needs verified logic thresholds, I/O current limits, reset behavior, and environmental qualification from the manufacturer datasheet. The supplied data does not establish a security certification, so the MCU must not be described as certified for any particular security standard.
エンジニアリング参考データ: Z86E4412PSG — 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 | Z86E4412PSC |
|---|---|---|
| Package | PDIP-40 | PDIP-40 |
| Brand | Zilog | Zilog |
| Processor Core | Z8 | Z8 |
| CPU Architecture | 8-bit | 8-bit |
| Maximum Clock Frequency | 12 MHz | 12 MHz |
| Program Memory | 16KB OTP, organized as 16K × 8 | 16KB OTP |
| RAM | 236 × 8 bytes | 236 × 8 bytes |
| Power-On Reset | Integrated | Integrated |
| Watchdog Timer | Integrated | Integrated |
| External Interface | EBI/EMI | EBI/EMI |
主な差別化要因
- Exact package-compatible replacement path （vs Z86E4412PSC)
- Matching embedded-control performance （vs Z86E4412PSC)
- Matching memory and reset resources （vs Z86E4412PSC)
設計ノート
Treat OTP program memory as a write-once manufacturing step. Validate the complete application code, configuration bytes, interrupt vectors, and all hardware-dependent constants before programming production devices. Because the verified excerpts do not include the programming pinout, electrical limits, or programming procedure, use the manufacturer datasheet rather than relying on general Z8 family assumptions.
The DIP-40 footprint simplifies through-hole prototyping, but oscillator, reset, programming, and unused-pin handling still require a complete pin-level design review. Do not leave required pins floating unless the manufacturer explicitly permits it, and route the external-bus signals away from sensitive analog or high-speed paths. Confirm decoupling and exposed-pin requirements from the datasheet because no supply-voltage or pin-specific values are present in the supplied excerpts.
The supplied source data does not specify the operating-voltage range, absolute maximum ratings, input thresholds, or output-drive capability. Before applying the Z86E4412PSG to a 5V or 3.3V system, verify those parameters directly in the manufacturer datasheet and check every attached peripheral's logic level. This avoids assuming that the 12MHz clock rating implies a particular supply voltage.
The 236-byte RAM imposes a strict working-memory budget for buffers, call stacks, and multi-task state. Profile worst-case stack use and avoid placing large data structures in RAM when external memory can be reached through EBI/EMI. The available sources do not identify the external-memory protocol or timing, so interface mapping and signal compatibility must be confirmed from the datasheet.
コンプライアンス情報
The supplied source excerpts do not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements.
