ATF16V8B-15PI - 15 ns 5V 8-Macrocell PLD | Microchip Technology
部品番号: ATF16V8B-15PI ✓ 生産中ATF16V8B-15PI 概要
An electrically erasable programmable logic device, or EEPLD, is a semiconductor that stores configurable digital logic functions in nonvolatile memory. Within the broader hierarchy, an EEPLD is a programmable logic device, a form of digital logic IC, and ultimately a general-purpose semiconductor. Unlike a mask-programmed mask ROM or one-time-programmable fuse device, the ATF16V8B-15PI can be erased and reprogrammed while retaining its logic implementation between operating cycles.
The ATF16V8B family provides 8 macrocells and 250 gates, with configurable operating modes selected by software according to the required input and output equations. Maximum propagation delay is 15 ns for the ATF16V8B-15PI designation, making it suitable for control, decoding, address translation, interface adaptation, and general combinational or registered logic. The device operates from a single 5 V supply and is offered in a green 20-PDIP package.
The 16V8 architecture supports up to 16 inputs and 8 outputs, allowing it to implement many common 20-pin PAL arrangements. Eight product terms are allocated to each output in the applicable operating mode. Because the device uses electrically erasable Flash memory, designers can reuse a programmed part during development or update its configuration without relying on one-time fuse programming.
Typical uses include industrial control logic, legacy peripheral-interface adapters, programmable I/O expansion, decoding functions, and compact glue-logic implementations. The 15 ns timing class is useful where propagation delay matters, although exact system timing must still be checked against the programmed architecture and external load conditions. The same 20-pin footprint can simplify repairs or modernization of boards designed around compatible 16V8 PLDs.
The primary design consideration is physical and functional compatibility rather than package interchange alone. Confirm the pinout, active levels of CE and OE, registered versus combinatorial configuration, supply voltage, and timing limits before substituting another part. Firmware and programming files must also be reviewed because equivalent pin assignments do not necessarily guarantee identical macrocell behavior or timing margins.
This page combines verified manufacturer and distributor information, drop-in candidate screening, package-level comparison, and practical replacement guidance. It distinguishes verified device facts from unavailable pricing, lifecycle, compliance, and detailed timing fields, making the resulting selection guidance more useful for engineering review than a raw distributor listing alone.
ドロップイン代替品: ATF16V8B-15PI — 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-15PI （同一形状・フットプリント） — 相違点: Architecture, Device Type, Package.
ATF16V8B-15PU
✅ 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-15PC
✅ 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 →ATF16V8BQL-15PI
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ATF16V8CZ-15PI
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ATF16V8C-15PI
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ATF16V8B-15PI 最大定格＆電気的特性
| Device Type | Electrically Erasable Programmable Logic Device (EEPLD) |
| Series | ATF16V8B |
| Architecture | 16V8 |
| Logic Gate Capacity | 250 gates |
| Macrocell Count | 8 macrocells |
| Maximum Input Count | Up to 16 inputs |
| I/O Count | Up to 8 I/Os |
| Maximum Propagation Delay | 15 ns |
| Maximum Pin-to-Pin Delay | 7.5 ns |
| 電源電圧 | 5 V |
| Programmable Technology | Electrically erasable Flash memory |
| Logic Family | CMOS |
| パッケージ | 20-PDIP (0.300 inch) |
| 実装タイプ | Through-hole |
| Device Classification | Standard-power programmable logic device |
| Package Color Classification | Green package |
ATF16V8B-15PI ピン構成
| ピン 1 | CLK — Clock input for registered configurations |
| ピン 2 | I0 — Logic input |
| ピン 3 | I1 — Logic input |
| ピン 4 | I2 — Logic input |
| ピン 5 | I3 — Logic input |
| ピン 6 | I4 — Logic input |
| ピン 7 | I5 — Logic input |
| ピン 8 | I6 — Logic input |
| ピン 9 | I7 — Logic input |
| ピン 10 | GND — Ground reference |
| ピン 11 | /OE — Active-low output enable |
| ピン 12 | /CE — Active-low chip enable |
| ピン 13 | I8 — Logic input or configuration-dependent function |
| ピン 14 | I9 — Logic input or configuration-dependent function |
| ピン 15 | O0 — Configurable output |
| ピン 16 | O1 — Configurable output |
| ピン 17 | O2 — Configurable output |
| ピン 18 | O3 — Configurable output |
| ピン 19 | O4 — Configurable output |
| ピン 20 | VCC — Positive 5 V supply |
主な用途
ATF16V8B-15PI の用途: 6 件s: Industrial Control and Automation Logic, Legacy Peripheral Interface Adapters, Programmable Decoding and Address Translation, Programmable I/O Expansion, Instrumentation and Measurement Control, Maintenance and Legacy Board Repair.
Industrial Control and Automation Logic
The ATF16V8B-15PI fits compact industrial control blocks that need programmable decoding, state transitions, or interlock logic without allocating a microcontroller. Its 8 macrocells and 250-gate capacity provide enough logic for multiple Boolean functions, while the 15 ns maximum propagation-delay class supports short combinational paths. The device operates from a single 5 V supply and is electrically reprogrammable, allowing controlled logic revisions without changing the PCB. The 20-PDIP package is also practical for repairable through-hole industrial equipment. Before deployment, confirm the -15PI temperature qualification and isolation requirements for the target machine because those details were not included in the verified excerpts.
おすすめ
Legacy Peripheral Interface Adapters
The ATF16V8B-15PI is appropriate for adapting legacy peripheral signals to a modern control system through address decoding, data routing, and interface-sequencing logic. Its support for up to 16 inputs and 8 I/Os allows several control signals and data paths to be consolidated in one programmable device. The 15 ns speed class can reduce propagation delay in short combinational control paths, while the 15 ns maximum propagation-delay specification provides a defined timing limit for analysis. Electrically erasable Flash memory allows the interface logic to be revised during maintenance. Verify the programmed fuse map, output polarity, and timing against external bus and peripheral requirements before treating it as a functional replacement for a dedicated interface IC.
おすすめ
Programmable Decoding and Address Translation
The ATF16V8B-15PI can implement address decoding, command qualification, or simple address-translation functions where fixed masked logic would be inflexible. Its 8 macrocells, up to 16 inputs, and 8 I/Os are well matched to PAL-style decoding equations, and the 15 ns propagation-delay class provides a defined device limit for short control paths. Because the architecture supports multiple configuration modes, the programmed operating mode must match the intended combinational, registered, or complex-mode behavior. The 20-PDIP package makes the device convenient for prototype boards and repairable legacy systems. Confirm input and output timing margins, unused-pin behavior, and programming-file portability before introducing it into a high-speed memory or processor interface.
おすすめ
Programmable I/O Expansion
The ATF16V8B-15PI can add configurable I/O behavior to a control board without introducing another microcontroller or a large dedicated interface device. Up to 16 inputs and 8 I/Os permit input qualification, output decoding, latch-like registered functions, and mixed combinational logic to be consolidated into a 20-pin device. Its 5 V CMOS supply and electrically erasable Flash configuration make it useful for stable industrial logic that may require a later engineering change. The 15 ns speed designation supports applications where propagation delay must remain bounded. The designer must still validate output-current, output-voltage, and absolute-maximum limits because those electrical values were not available in the supplied verified excerpts and should not be inferred from the logic capacity.
おすすめ
Instrumentation and Measurement Control
The ATF16V8B-15PI can implement sequencing, range-selection, trigger-qualification, and status-logic functions in instrumentation built around older 5 V digital subsystems. The 8 macrocells and 250-gate capacity provide flexible Boolean implementation, while the 15 ns maximum propagation-delay class is useful for short control paths between sensors, switches, and display or measurement hardware. Its electrically erasable configuration allows calibration or instrument-revision logic to be changed without replacing a masked device. The 20-PDIP package remains useful in laboratory-style and serviceable equipment. Confirm supply tolerance, input thresholds, output drive, and timing against the actual measurement chain; the verified records establish the device family and package but do not provide every electrical limit needed for a complete safety review.
おすすめ
Maintenance and Legacy Board Repair
The ATF16V8B-15PI is well suited to restoring programmable logic in legacy 20-pin boards because its 16V8 architecture and 20-PDIP package align with established PAL-style layouts. A failed PLD can potentially be replaced after confirming electrical ratings, programming configuration, and timing. The electrically erasable Flash architecture permits a restored board to receive the required logic file without fuse programming, while the 15 ns speed class preserves timing compatibility with the original family. Since package equivalence alone cannot prove behavioral equivalence, the repair process should compare the replacement order code, device revision, programming file, and timing specification. Use the same family or another explicitly screened 20-PDIP candidate rather than substituting a microcontroller without board changes.
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-15PI — 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 | ATF16V8B-15PU | ATF16V8B-15PC | ATF16V8BQL-15PI | ATF16V8CZ-15PI | ATF16V8C-15PI |
|---|---|---|---|---|---|---|
| Package | 20-PDIP (0.300 inch) | 20-PDIP (0.300 inch) | 20-PDIP (0.300 inch) | 20-PDIP (0.300 inch) | 20-PDIP (0.300 inch) | 20-PDIP (0.300 inch) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Product Type | Electrically Erasable Programmable Logic Device | Electrically Erasable Programmable Logic Device | Electrically Erasable Programmable Logic Device | Electrically Erasable Programmable Logic Device | Flash Programmable Logic Device | Flash Programmable Logic Device |
| Architecture | 16V8 | 16V8 | 16V8 | 16V8 | 16V8 | 16V8 |
| Maximum Propagation Delay | 15 ns | 15 ns | 15 ns | 15 ns | 15 ns | 15 ns |
| Macrocell Count | 8 macrocells | 8 macrocells | 8 macrocells | 8 macrocells | 8 macrocells | 8 macrocells |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
| Input Capacity | Up to 16 inputs | Up to 16 inputs | Up to 16 inputs | Up to 16 inputs | Up to 16 inputs | Up to 16 inputs |
主な差別化要因
- Exact 15 ns ATF16V8B configuration （vs ATF16V8B-15PU)
- Directly identified complete-replacement candidate （vs ATF16V8CZ-15PI)
- Same 16V8 macrocell organization （vs ATF16V8BQL-15PI)
設計ノート
Do not approve a replacement based only on the 20-PDIP outline. Confirm that the candidate retains the 16V8 architecture, 15 ns timing class, 5 V supply, programmed operating mode, and the same CE, OE, clock, and output polarity. The ATF16V8B, ATF16V8BQL, ATF16V8C, and ATF16V8CZ families are related but are not necessarily identical in power behavior or qualification. Load the existing programming file into the approved toolchain and compare the generated fuse map and timing report before production use.
Preserve the original 20-pin through-hole footprint, including pin-1 orientation and the 0.300 inch DIP spacing. Keep the programmable device away from long, high-current switching paths and provide a compact 5 V decoupling connection close to the supply pin using capacitor and dielectric values validated against the manufacturer's electrical-characteristics table. Because the retrieved excerpts do not specify recommended decoupling or output-current limits, do not invent those values; consult the complete manufacturer datasheet for the selected device and system power budget.
Analyze each programmed path using the 15 ns maximum propagation-delay specification together with the 7.5 ns maximum pin-to-pin delay, while recognizing that these measurements describe different conditions. Include external clock, logic, and output delays in the end-to-end budget, and check fan-out against the device's verified output-drive data. The supplied web excerpts do not provide AC test conditions, output current, or setup and hold values, so these must be obtained from the manufacturer datasheet before high-speed or safety-critical timing claims are accepted.
コンプライアンス情報
The verified excerpts identify a green 20-PDIP package but do not contain explicit RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive-qualification statements for the ATF16V8B-15PI.
