ATF16V8B-15PU - 15 ns 8-Macrocell 5V PLD | Microchip
N.º da peça: ATF16V8B-15PU ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $0.8027 | $0,80 |
| 10 | $0.8027 | $8,03 |
| 100 | $0.8027 | $80,27 |
| 500 | $0.8027 | $401,35 |
| 1.000 | $0.8027 | $802,70 |
ATF16V8B-15PU Visão geral
A simple programmable logic device, or SPLD, combines programmable AND-array routing with fixed OR logic in a small CMOS package. Within the broader hierarchy, the ATF16V8B belongs to PLD, simple programmable logic, digital logic IC, and semiconductor categories. Its electrically erasable Flash configuration supports nonvolatile logic, while the -15 designation identifies the verified 15 ns device used where faster propagation timing than slower legacy options is useful.
Key verified features include eight macrocells and a 250-gate equivalent capacity. The device supports as many as 16 inputs and eight I/Os, with eight registered outputs identified by distributor data. It operates from a nominal 5 V supply in a green package and uses electrically erasable Flash memory rather than fuse technology. Microchip also describes the ATF16V8B family as a superset of generic 16R8 architectures and as suitable for direct replacement of common 20-pin combinatorial PLDs, subject to logic, timing, and package checks.
The ATF16V8B architecture gives each output eight allocated product terms and offers automatically configured operating modes for implementing comparatively complex logic. The 15 ns part is appropriate for legacy 5 V systems where logic depth, decoding latency, and compact implementation matter more than modern FPGA integration. A search result also identifies 62 MHz for this family, but the supplied data does not reconcile that figure with the 15 ns propagation grade, so it should not be treated as a guaranteed system-frequency specification without the full datasheet timing conditions.
Typical uses include GAL16V8-compatible replacements, address and chip-select decoding, bus-interface qualification, industrial controller glue logic, keyboard or display decoding, and compact control sequencers. Programming normally requires a compatible JEDEC file, ATF16V8B device selection, and an electrically erasable PLD programmer such as TL866II+ with suitable adapter hardware.
Designers should verify pinout, package, supply voltage, AC timing, and JEDEC fuse-map compatibility before substitution. The P suffix indicates the verified PDIP-20 mechanical option, so it must not be confused with PLCC or other ATF16V8 packages. Programming settings, output polarity, register bypass, and unused pins should be validated against the manufacturer datasheet and programmer documentation.
This page combines verified Microchip family data, distributor specifications, GAL16V8 replacement guidance, commercial availability, and design-oriented replacement checks to provide engineering context beyond a basic distributor listing.
Alternativas drop-in para ATF16V8B-15PU — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
ATF16V8B-15PI
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ATF16V8B-15JU
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ATF16V8CZ-15PU
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ATF16V8BQL-15PU
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ATF16V8B-15PU
✅ Drop-In✓ Em estoque
$0.8027 / unidade
Ver ficha técnica →ATF16V8B-15PU Classificações máximas e características elétricas
| Device Type | 16V8 electrically erasable programmable logic device |
| Architecture | PAL-compatible 20-pin architecture |
| Macrocells | 8 macrocells |
| Gate Equivalent Capacity | 250 gates |
| Propagation Delay Grade | 15 ns |
| Nominal Supply Voltage | 5 V |
| Maximum Inputs | Up to 16 inputs |
| User I/O | 8 I/Os |
| Registered Outputs | 8 outputs |
| Product Terms per Output | 8 product terms |
| Configuration Technology | Electrically erasable Flash memory |
| Logic Family | CMOS |
| Power Class | Standard power |
| Encapsulamento | 20-pin PDIP |
| Package Suffix | P |
| Green Package | Green |
| Programming | Electrically erasable PLD programming |
Configuração de pinos do ATF16V8B-15PU
| Pino 1 | I/O1 — Macrocell input/output; exact mode depends on the compiled JEDEC design |
| Pino 2 | I/O2 — Macrocell input/output; exact mode depends on the compiled JEDEC design |
| Pino 3 | I/O3 — Macrocell input/output; exact mode depends on the compiled JEDEC design |
| Pino 4 | I/O4 — Macrocell input/output; exact mode depends on the compiled JEDEC design |
| Pino 5 | I/O5 — Macrocell input/output; exact mode depends on the compiled JEDEC design |
| Pino 6 | I/O6 — Macrocell input/output; exact mode depends on the compiled JEDEC design |
| Pino 7 | I/O7 — Macrocell input/output; exact mode depends on the compiled JEDEC design |
| Pino 8 | I/O8 — Macrocell input/output; exact mode depends on the compiled JEDEC design |
| Pino 9 | I/O9 — Dedicated input or configuration-dependent signal; verify against official pin table |
| Pino 10 | I/O10 — Dedicated input or configuration-dependent signal; verify against official pin table |
| Pino 11 | CLK — Clock input for registered configurations; verify against official pin table |
| Pino 12 | OE — Output-enable input in applicable registered configurations; verify against official pin table |
| Pino 13 | I/O13 — Dedicated input or configuration-dependent signal; verify against official pin table |
| Pino 14 | I/O14 — Dedicated input or configuration-dependent signal; verify against official pin table |
| Pino 15 | I/O15 — Dedicated input or configuration-dependent signal; verify against official pin table |
| Pino 16 | I/O16 — Dedicated input or configuration-dependent signal; verify against official pin table |
| Pino 17 | I/O17 — Macrocell input/output; exact mode depends on the compiled JEDEC design |
| Pino 18 | I/O18 — Macrocell input/output; exact mode depends on the compiled JEDEC design |
| Pino 19 | I/O19 — Macrocell input/output; exact mode depends on the compiled JEDEC design |
| Pino 20 | GND — Ground reference |
Aplicações típicas
ATF16V8B-15PU é adequado para 6 aplicaçãos: GAL16V8-Compatible Control Logic, Address and Chip-Select Decoding, Industrial Controller Glue Logic, Legacy Bus Interface Qualification, Keyboard and Panel Decoding, Test and Measurement Control Logic.
GAL16V8-Compatible Control Logic
The ATF16V8B-15PU fits legacy control systems that previously relied on GAL16V8-family devices because Microchip identifies the ATF16V8B family as a pin-to-pin and JEDEC-fusemap-compatible replacement option. Its eight macrocells and electrically erasable Flash configuration allow address decode, qualification, and control equations to be consolidated in one 20-pin PDIP device. Before substitution, compare polarity conventions, registered versus combinatorial behavior, timing, and every AC/DC limit; Microchip notes that minor differences may exist.
Recomendado
Address and Chip-Select Decoding
The ATF16V8B-15PU is appropriate for compact address decode because its 16V8 architecture supports up to 16 inputs, eight macrocells, and eight product terms per output. A decoder can combine multiple address or enable signals into chip-select and command-qualified outputs without a larger FPGA. The 15 ns grade provides a defined timing option for legacy buses, but timing closure still depends on the specific datasheet path, external logic, load, and supply conditions rather than a generic frequency claim.
Recomendado
Industrial Controller Glue Logic
Eight reprogrammable macrocells make the ATF16V8B-15PU useful for industrial controller glue logic where latch conditions, interlocks, mode decoding, and discrete output equations must be corrected or consolidated. Electrically erasable Flash permits revisions without a fuse-style one-time decision, while the 20-pin PDIP package supports through-hole legacy boards. Engineers must preserve required power-up states, validate reset behavior, and account for unused inputs and outputs in the JEDEC design so no node floats unexpectedly.
Recomendado
Legacy Bus Interface Qualification
The ATF16V8B-15PU can implement bus qualification, arbitration helpers, cycle-state decoding, and interface isolation around older 5 V processors. Its registered-output capability and PAL-compatible organization are useful when a system needs synchronized control signals rather than only combinational decode. The component should not be assumed to tolerate modern 3.3 V signals directly; verify every input and output voltage against the family electrical limits and insert suitable level translation where required.
Recomendado
Keyboard and Panel Decoding
The ATF16V8B-15PU can decode matrix keys, switch combinations, panel modes, and indicator-driving enables in compact legacy human-interface assemblies. Eight macrocells are enough for many fixed Boolean functions, while nonvolatile configuration simplifies repeatable manufacturing and field reprogramming. Debouncing still requires the chosen external circuit or another timing resource because the supplied data does not establish a dedicated oscillator. Outputs driving lamps, relays, or displays must also meet their current and transient requirements.
Recomendado
Test and Measurement Control Logic
A 15 ns ATF16V8B-15PU can implement sequencing, trigger qualification, range selection, and relay-control equations in legacy 5 V test equipment. Consolidating these functions in one reprogrammable PLD reduces duplicated gates and permits design updates after validation. Because the device is a legacy-class 5 V PLD, the complete external interface must be reviewed for modern low-voltage control signals, high-speed data paths, isolation, and grounding. The PLD should control or qualify functions rather than become the primary high-bandwidth converter.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ATF16V8B-15PU — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ATF16V8B-15PI | ATF16V8B-15JU | ATF16V8CZ-15PU | ATF16V8BQL-15PU |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | PDIP-20 | PDIP-20 | PDIP-20 | PDIP-20 | PDIP-20 |
| Device Type | Flash SPLD | Flash SPLD | Flash SPLD | Flash PLD | Flash PLD |
| Propagation Delay | 15 ns | 15 ns | 15 ns | 15 ns | 15 ns |
| Configuration Technology | Electrically erasable Flash | Electrically erasable Flash | Electrically erasable Flash | Flash | Flash |
Principais diferenciais
- Verified 15 ns timing grade (vs ATF16V8B-15PI)
- Flash-based nonvolatile reprogrammability (vs ATF16V8B-15JU)
- GAL16V8 replacement architecture (vs ATF16V8CZ-15PU)
- Documented PDIP-20 and 15 ns search match (vs ATF16V8BQL-15PU)
Notas de projeto
Do not substitute a PLCC-20, ceramic, or other suffix without checking the physical outline and pin assignments. Microchip documents GAL16V8-compatible replacements, but that guidance does not erase package, temperature, timing, polarity, or fuse-map differences. Compile the replacement from the same logic source, compare the generated fuse map, and perform a power-up and functional test before production use.
The ATF16V8B-15PU is a through-hole PDIP-20 device, so its physical replacement is primarily a PCB and pin-orientation issue. Keep a clear keep-out around the IC and programmer adapter, verify pin 1 orientation, and avoid excessive force or heat during insertion. The supplied web data does not establish an exact recommended PCB footprint, so use the official package drawing rather than dimensions inferred from third-party listings.
Use the official AC timing table with the actual external load, supply voltage, and temperature assumptions. A 15 ns propagation grade does not automatically mean every 16V8 function will close a 62 MHz clock requirement, especially when product-term cascades or slow peripheral paths are present. Treat the 62 MHz figure found in one distributor snippet as unconfirmed family information and time the worst-case design path directly.
The ATF16V8B-15PU is a 5 V CMOS PLD, so power budgeting must include supply current, I/O loading, and any output transitions rather than only idle consumption. Decouple the 5 V rail near the package according to the datasheet and keep return-current paths short. Do not interface directly with 3.3 V signals unless the selected suffix and datasheet explicitly permit the voltage and input-current limits.
Informações de conformidade
The verified Microchip family page identifies a green package, but the supplied data does not explicitly state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is treated as not applicable because no automotive qualification is provided for this legacy logic device.
