ISD9361RI - Serial Voice Record/Playback IC, 64-LQFP | Nuvoton
料号： ISD9361RI ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
ISD9361RI 概述
A voice record and playback IC is a mixed-signal audio device that converts microphone input into stored digital audio and converts stored digital data back into analog sound using an integrated codec, speaker driver interface, and message indexing engine. Such devices sit within the broader hierarchy of audio codec ICs and human-machine-interface semiconductors, where they offload audio capture and playback tasks from the main processor.
Key features of the ISD9361RI include its serial host interface, message-based storage architecture for indexed voice segments, integrated record and playback paths, industrial-grade temperature rating from -40C to +85C, and a compact 7 x 7 mm 64-LQFP surface-mount package that suits dense PCB layouts. The message-serial architecture allows a host controller to address individual voice messages, enabling prompt-driven user interfaces without streaming raw audio data over the bus.
Technically, the device combines an analog front end for microphone and line inputs with a digital message-management core, providing self-contained record/playback sequencing. Host controllers issue serial commands to trigger specific messages, simplifying firmware in applications that only need canned announcements or prompt playback.
Typical applications include industrial equipment voice annunciators, medical device audible prompts, security and alarm announcement panels, elevator and building-automation voice prompts, and consumer appliance user interfaces.
Design consideration: because the ISD9361RI is officially listed as obsolete, new designs should secure long-term stock or plan a successor strategy before committing to this part; verify message storage duration and audio bandwidth against the manufacturer datasheet.
This page synthesizes distributor stock data, lifecycle status, and sourcing guidance for an obsolete Nuvoton voice IC - information not consolidated in the manufacturer datasheet.
ISD9361RI 规格参数
| Product Type | Voice Record and Playback IC |
| Series | Message Serial |
| 接口 | Serial |
| 功能 | Voice Record / Playback |
| 封装 | 64-LQFP (7 x 7 mm) |
| 安装类型 | Surface Mount |
| 工作温度 | -40C to +85C (TA) |
| Packaging | Tray |
| 生命周期状态 | Obsolete |
| Manufacturer | Nuvoton Technology Corporation |
| Message Architecture | Message Serial (indexed messages) |
ISD9361RI 64-lqfp (7 x 7 mm) 引脚配置指南
ISD9361RI（64-lqfp (7 x 7 mm) 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： ISD9361RI.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ISD9361RI 适用于 6 应用s: Industrial Equipment Voice Annunciator, Medical Device Audible Prompts, Security and Alarm Announcement Panels, Building Automation and Elevator Voice Prompts, Consumer Appliance User Interfaces, Voice Prompt Development and Legacy Service Boards.
Industrial Equipment Voice Annunciator
Industrial machines and process equipment use spoken alarms and status prompts to inform operators of faults without requiring them to read displays. The ISD9361RI fits this role because its Message Serial architecture lets a PLC or microcontroller trigger specific indexed voice messages with single serial commands, while its -40C to +85C rating survives control-cabinet temperatures. In a typical circuit the host issues a message-select command over the serial bus, and the IC drives an audio amplifier and speaker directly from its playback path. The message-based storage keeps firmware simple - no audio streaming or file systems are needed. Because the part is obsolete, new annunciator designs should verify remaining stock quantities (1,000 to 5,000 units reported across distributors as of 2026-10-11) before committing to this device for a production run.
推荐
Medical Device Audible Prompts
Diagnostic and therapy devices rely on clear spoken instructions to guide users through procedures, reducing user error in clinical environments. The ISD9361RI's serial message interface allows the device main controller to play step-by-step prompts on demand, while its record path lets manufacturers update prompt sets during production or calibration without regenerating firmware. Its 64-LQFP 7 x 7 mm footprint suits compact handheld or benchtop medical housings. Playback is launched by a single serial command per message, keeping latency low and behavior deterministic - important for timed clinical workflows. A low-noise analog front end minimizes hiss between prompts, which matters in quiet clinical settings. Note that the obsolete status requires careful last-time-buy planning to support multi-year medical product service commitments.
推荐
Security and Alarm Announcement Panels
Security panels use spoken warnings to deter intruders and to guide evacuation, and they must operate across a wide temperature range in outdoor-adjacent enclosures. The ISD9361RI addresses these needs with its industrial -40C to +85C rating and its ability to store multiple distinct warning messages, each addressable independently over the serial interface. The alarm controller sequences messages - such as zone identification followed by an evacuation instruction - simply by issuing consecutive serial commands. The integrated playback path with speaker drive reduces component count on the alarm board. Designers should verify recorded message duration against the datasheet limits and provision an external audio amplifier where higher sound pressure levels are required for large premises.
推荐
Building Automation and Elevator Voice Prompts
Elevators and building systems announce floor arrivals, door status, and safety instructions, often in multiple message sets. The ISD9361RI's Message Serial design allows a building controller to address each prompt individually, so localization or accessibility variants can be managed as separate message banks. Its surface-mount 64-LQFP package integrates into controller boards alongside relays and motor-drive electronics, and the serial interface requires only a few host pins. The playback path interfaces to a small amplifier driving the cab speaker, while the record path supports factory configuration of prompt content. With an -40C to +85C range it tolerates machine-room temperature extremes. Given obsolescence, service organizations should stock spare units for elevator fleets already using this IC.
推荐
Consumer Appliance User Interfaces
Appliances such as ovens, washing machines, and air conditioners use spoken feedback for accessibility and convenience. The ISD9361RI provides a self-contained record/playback solution: the appliance MCU sends a serial command per prompt, and the IC handles storage indexing and audio generation internally, eliminating file-system or streaming firmware. The 7 x 7 mm 64-LQFP fits on crowded appliance main boards, and its temperature rating covers typical kitchen and laundry environments. The record path also enables manufacturing-line personalization of prompts. The primary design consideration is supply longevity - because the part is obsolete, high-volume consumer products should select a currently active Nuvoton audio device instead, reserving ISD9361RI usage for service replacement of existing appliance platforms.
推荐
Voice Prompt Development and Legacy Service Boards
Service organizations maintaining installed bases of ISD9361-based equipment need boards and programming fixtures that can re-record message sets in the field. The ISD9361RI's serial record capability means a simple host adapter can update voice content without removing the IC, extending the service life of deployed equipment. A service fixture typically pairs the IC with a USB-serial bridge and an audio amplifier, using the IC's industrial temperature rating for workshop flexibility. Because the device is obsolete and tray-packed stock is finite (1,000 to 5,000 units reported across distributors), service teams should procure spare ICs now and document the record/playback command sequences from the manufacturer datasheet to keep fixtures reproducible after stock disappears.
推荐
推荐产品汇总
工程参考数据： ISD9361RI ——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 | 64-LQFP (7 x 7 mm) |
| Brand | Nuvoton Technology |
| Function | Voice Record / Playback |
| Interface | Serial |
| Operating Temperature | -40C to +85C |
| Lifecycle Status | Obsolete |
| Mounting Type | Surface Mount |
| Packaging | Tray |
关键差异点
- Message Serial architecture simplifies host firmware （对比 General-purpose MCU + codec solutions)
- Industrial temperature rating in a voice IC （对比 Commercial-grade voice prompt ICs (0C to +70C))
- Single-chip record AND playback （对比 Playback-only prompt chips)
设计说明
The ISD9361RI is officially obsolete per icDirectory and distributor listings. Any new design activity is high risk: spot-market stock (about 1,000 to 5,000 units reported as of 2026-10-11) is finite and can be depleted by other last-time-buyers without notice. For sustaining designs, place a last-time-buy with buffer margin (typically 5-10% attrition allowance) and date-code-verify incoming stock. For new designs, select a currently active Nuvoton audio device or an MCU-plus-codec solution instead.
The device uses a serial host interface in an environment with speaker and microphone analog paths on the same board. Route the serial bus away from the speaker drive traces, and keep the analog audio ground return separate from digital switching currents to avoid audible buzz between messages. Follow the manufacturer datasheet grounding recommendations for the analog front end, and decouple the supply pins with ceramic capacitors placed close to the 64-LQFP power pins.
The 64-LQFP (7 x 7 mm, 0.5 mm pitch) footprint requires careful pad geometry per the manufacturer datasheet land-pattern recommendation; verify the footprint against the datasheet rather than generic LQFP-64 libraries, since ISD-family parts may have exposed thermal or tie pins with specific grounding requirements. When planning a future migration away from this obsolete part, avoid placing tall components adjacent to the IC so that an alternative-package redesign does not force a full board respin.
合规信息
Compliance data was not present in the retrieved web data for this obsolete part; verify against Nuvoton product documentation before export or regulatory submissions.
