ATF16V8B-10JC - 10ns 8-Macrocell EEPLD | Microchip Technology
部品番号: ATF16V8B-10JC ✓ 生産中ATF16V8B-10JC 概要
An EEPLD is a programmable-logic IC that stores its logic configuration in electrically erasable nonvolatile memory. Within the product hierarchy, an EEPLD is a simple PLD, a type of programmable-logic device and a semiconductor. Its practical advantage over a fuse-programmed PAL is field programmability: the ATF16V8B family can be configured and reprogrammed, making it suitable for prototypes, legacy product refreshes, and small control systems whose logic requirements may evolve.
Key features include a 10 ns speed grade, eight macrocells with eight product terms per output, and three operating modes selected automatically by software. The manufacturer describes the device as a 250-gate, standard-power, green-package part with a 5 V supply. It emulates many 20-pin PAL devices and most 20-pin combinatorial PLDs, reducing the need for a redesign when consolidating older programmable-logic implementations.
The ATF16V8B architecture supports flexible input and output assignments through its fuse map. Unlike a general-purpose microcontroller, the part executes only the Boolean equations placed into its macrocells, so its behavior is deterministic and does not require a clock when configured for combinational operation. Registered configurations can add sequential logic while retaining the compact 20-pin footprint and simple programming workflow.
Typical uses include industrial automation, interface decoding, control-panel logic, telecommunications infrastructure, and consumer-equipment glue logic. The part is especially relevant to systems that previously used 20-pin PALs or simple GAL devices. Engineers should preserve the exact fuse map and verify package pin orientation during replacement, since logic configuration compatibility is as important as electrical and pin compatibility.
The main design consideration is that a drop-in package does not guarantee identical behavior after programming. The replacement device must use a compatible JEDEC fuse map, and any pin-preset configuration, registered-logic mode, power-up behavior, and unused-pin treatment must be checked against the original design. This page combines verified manufacturer and distributor information with practical selection and replacement guidance.
ドロップイン代替品: ATF16V8B-10JC — 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。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: ATF16V8B-10JC （同一形状・フットプリント） — 相違点: Device Type, Package.
ATF16V8BQ-10JC
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ATF16V8B-10JI
✅ ドロップイン価格はお問い合わせください
データシートを見る →ATF16V8B-10JU
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ATF16V8C-10JC
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
ATF16V8BQL-10JC
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
ATF16V8B-10JC 最大定格＆電気的特性
| Device Type | 16V8 electrically erasable programmable logic device (EEPLD) |
| Architecture | 8 macrocells with 8 product terms per output |
| Equivalent Gate Capacity | 250 gates |
| 電源電圧 | 5 V |
| Propagation Delay | 10 ns |
| Maximum Inputs | 16 inputs |
| I/O Outputs | 8 I/O outputs |
| Programming Technology | Electrically erasable Flash memory |
| パッケージ | 20-pin PLCC (9x9 mm), J-lead |
| 実装タイプ | Surface mount |
| Package Code | QCCJ |
| Terminals | 20 terminals |
| Package Shape | Square |
| Power Class | Standard power |
| Operating Modes | 3 software-configured modes |
| Logic Compatibility | Emulates many 20-pin PAL devices and most 20-pin combinatorial PLDs |
| Commercial Temperature Grade | Commercial |
ATF16V8B-10JC square ピン配置ガイド
ATF16V8B-10JC (square 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: ATF16V8B-10JC.
詳細は データシート をご参照ください。
主な用途
ATF16V8B-10JC の用途: 6 件s: Industrial Automation Interface Logic, Telecommunications Equipment Control, Legacy 20-Pin PAL Consolidation, Consumer Equipment Glue Logic, Address Decoding and Memory Control, Programmable Control Panel Logic.
Industrial Automation Interface Logic
The ATF16V8B-10JC fits industrial interface and control logic that requires deterministic combinational behavior without the overhead of a microcontroller. According to the manufacturer datasheet, its eight macrocells can implement multiple Boolean functions with eight product terms per output, while the 10 ns propagation delay provides useful timing margin for address decoding, command translation, and interlock logic. The device is installed in a 20-pin PLCC package, simplifying replacement of legacy 20-pin PAL designs. Its electrically erasable Flash configuration permits firmware-style logic updates during commissioning without socketed parts. Engineers should verify the commercial temperature range against the enclosure environment and confirm that the JEDEC fuse map matches the original logic.
おすすめ
Telecommunications Equipment Control
The ATF16V8B-10JC is appropriate for compact control and status logic in telecommunications equipment where line-card interfaces require deterministic decoding. The manufacturer describes a 5 V, 250-gate EEPLD with up to 16 inputs, 8 I/O outputs, three software-selected operating modes, and a 10 ns speed grade. Those resources allow engineers to consolidate address decode, alarm masking, and command sequencing into one 20-pin PLCC device. Compared with a software-based controller, the ATF16V8B executes its stored equations directly and requires no firmware execution loop. For replacement work, validate the fuse map, registered-versus-combinational configuration, and unused-pin states rather than relying on package identity alone.
おすすめ
Legacy 20-Pin PAL Consolidation
The ATF16V8B-10JC is particularly useful when consolidating multiple legacy 20-pin PAL implementations into a programmable alternative. According to the Microchip Technology manufacturer datasheet, the architecture emulates many 20-pin PAL devices and most 20-pin combinatorial PLDs. Its eight outputs, eight macrocells, and eight product terms per output make it well suited to Boolean decoding and simple control equations. Electrically erasable Flash configuration also avoids the one-time programming limitation of fuse-based PALs, allowing configuration revisions during maintenance. Migration should begin with a fuse-map comparison because Microchip’s replacement guidance requires JEDEC fusemap compatibility even when the electrical pin arrangement matches.
おすすめ
Consumer Equipment Glue Logic
The ATF16V8B-10JC can implement board-level glue logic in consumer equipment where fixed Boolean decoding, mode selection, or indicator control is needed. According to the verified manufacturer information, the device supplies 250 gates of logic in a 20-pin PLCC package, supports up to 16 inputs and 8 I/O outputs, and operates from a 5 V supply. That combination allows multiple combinational functions to replace scattered gates without introducing a larger microcontroller. The 10 ns grade also provides more timing margin than slower legacy PALs in many control paths. Because the packaged part is identified as commercial grade, it should remain within its specified environmental limits. Confirm its power-up preset and configured output states during power-supply sequencing tests.
おすすめ
Address Decoding and Memory Control
The ATF16V8B-10JC is suitable for fixed address decoding, chip-select generation, and simple memory-control interlocks in 5 V digital systems. According to the Microchip Technology manufacturer datasheet, the device has eight macrocells, three operating modes, and a 10 ns propagation delay. These characteristics support multiple decode equations and registered output configurations while preserving the standard 20-pin PAL footprint. The electrically erasable architecture makes the part useful during prototype development because decode maps can be revised more easily than fuse-programmed PAL logic. Verify setup and hold timing in the target system, especially if the original design used a registered output mode. The supplied excerpts do not provide a complete pin table, so engineers should check the official diagram and fuse map before layout changes.
おすすめ
Programmable Control Panel Logic
The ATF16V8B-10JC can implement key scanning, mode encoding, indicator-state decoding, and switch-condition logic in a compact control panel. According to the manufacturer product information, the device provides 16 inputs and 8 I/O outputs in a 20-pin PLCC package, with each output supported by eight product terms. This lets engineers consolidate several small combinational circuits into one deterministic programmable-logic device. A 10 ns propagation delay can support moderate scan and decoding rates while the nonvolatile Flash configuration preserves the logic between power cycles. When replacing a GAL16V8 or PAL implementation, confirm JEDEC fuse-map compatibility, pin presets, and the behavior of unused inputs. A microcontroller such as an ATMEGA device may be preferable when scan matrix complexity, serial diagnostics, or firmware maintenance dominates.
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: ATF16V8B-10JC — 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 | ATF16V8BQ-10JC | ATF16V8B-10JI | ATF16V8B-10JU | ATF16V8B-10PC | ATF16V8C-10JC |
|---|---|---|---|---|---|---|
| Package | 20-pin PLCC (9x9 mm), J-lead | 20-pin PLCC (9x9 mm), J-lead | 20-pin PLCC (9x9 mm), J-lead | 20-pin PLCC (9x9 mm), J-lead | 20-pin PLCC (9x9 mm), J-lead | 20-pin PLCC (9x9 mm), J-lead |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Device Architecture | 16V8 EEPLD with 8 macrocells | 16V8 EEPLD with 8 macrocells | 16V8 EEPLD with 8 macrocells | 16V8 EEPLD with 8 macrocells | 16V8 EEPLD with 8 macrocells | 16V8-family EEPLD |
| Propagation Delay | 10 ns | 10 ns | 10 ns | 10 ns | 10 ns | 10 ns |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
| Programming Technology | Electrically erasable Flash | Electrically erasable Flash | Electrically erasable Flash | Electrically erasable Flash | Electrically erasable Flash | Electrically erasable Flash |
主な差別化要因
- Reprogrammable logic with legacy PAL footprint support （vs ATF16V8B-10PC)
- Commercial and industrial temperature options within the same family （vs ATF16V8B-10JI)
- Automotive-oriented family option （vs ATF16V8BQ-10JC)
設計ノート
Do not assume that a matching 20-pin PLCC package guarantees a functional replacement. Microchip’s GAL16V8 replacement guidance requires pin-to-pin and JEDEC fuse-map compatibility, while noting minor electrical differences may exist. Before substituting, compare the fuse map, registered or combinatorial operating mode, output-enable behavior, power-up preset, and treatment of unused inputs. If the programming file was created for a different architecture, regenerate it with compatible PLD development software before production programming.
Treat the ATF16V8B-10JC as a 5 V digital device and provide clean, decoupled supply connections at the package. The supplied excerpts do not include the recommended input, output, or bypass capacitor values, so those must be taken from the official manufacturer datasheet rather than guessed. Keep programming and normal logic-operation requirements separated, and maintain the correct J-lead PLCC orientation on the board. Because the supplied pinout was incomplete, verify every land pattern against the official package drawing before fabrication.
Account for both active and standby current when planning the logic rail, particularly for a board containing several programmable-logic devices. The retrieved data identifies the ATF16V8B as a standard-power 5 V family and separately lists power-saving BQL variants, showing that power mode is a meaningful selection criterion. The target’s detailed supply-current limits were not included in the supplied excerpts, so use the manufacturer values for worst-case rail sizing and do not substitute the lower-power BQL part without reviewing its timing and electrical characteristics.
コンプライアンス情報
The manufacturer product excerpt describes a green package but does not explicitly confirm RoHS, REACH, lead-free, halogen-free, or conflict-minerals declarations. The standard ATF16V8B-10JC is treated as not qualified for AEC-Q100; the automotive-oriented ATF16V8BQ-10JC is listed separately as an alternative.
