ATF16V8C-7JI - 7.5ns 8-Macrocell EE PLD | Microchip
Артикул: ATF16V8C-7JI ✓ АктивенATF16V8C-7JI Обзор
A programmable logic device is a semiconductor that stores user-defined Boolean logic in a nonvolatile configuration structure. The ATF16V8C belongs to the 16V8 SPLD family, combining a 20-pin PAL-compatible architecture with eight macrocells. Each output can allocate eight product terms, and software automatically configures the supported operating modes, allowing the device to implement more complex logic than basic combinational PAL devices.
Key characteristics include an industry-standard 16V8 architecture, emulation of many 20-pin PAL devices, low-cost programming tools, CMOS and TTL-compatible interfaces, and a maximum pin-to-pin delay of 5 ns across the supported ATF16V8C speed options. The -7JI grade is identified in distributor data as an industrial-temperature 7.5 ns device. The family also includes a 100 µA pin-controlled power-down option, although the verified excerpt does not confirm that option for every suffix.
Technically, the ATF16V8C combines EECMOS processing with nonvolatile flash-based configuration. This supports in-circuit reconfiguration without volatile configuration loss and allows the eight outputs to implement registered or combinational functions. Because the device targets 5 V systems, its input thresholds and output behavior should be checked against the connected CMOS or TTL logic rather than assumed from modern low-voltage devices.
Typical applications include industrial control logic, interface decoding, state-machine implementation, glue logic, legacy control-panel logic, and compact combinational or sequential functions where a small PLD is more flexible than a fixed gate array. The 9 mm by 9 mm PLCC package also supports repair and upgrade programs that previously relied on 20-pin PAL devices.
Designers should preserve the J-lead land pattern, validate the programmed fuse file against the selected architecture, and confirm input levels, timing, and unused-pin requirements in the manufacturer datasheet. This page combines verified manufacturer and distributor data, drop-in family options, and practical replacement guidance to support legacy PLD design maintenance.
Аналоги без доработки для ATF16V8C-7JI — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
ATF16V8C-7JC
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Открыть даташит →ATF16V8C-7JU
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ATF16V8C-5JC
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ATF16V8C-10JC
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ATF16V8C-7CEXT
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ATF16V8C-7JI Максимальные параметры и электрические характеристики
| Device Type | 16V8 Simple Programmable Logic Device (SPLD) |
| Architecture | EECMOS |
| Configuration Memory | Electrically Erasable Flash Memory |
| Number of Macrocells | 8 macrocells |
| Количество выходов | 8 outputs |
| Product Terms per Output | 8 product terms |
| Target Device Speed | 7.5 ns |
| Family Maximum Pin-to-Pin Delay | 5 ns maximum |
| Напряжение питания | 5 V |
| Logic Compatibility | CMOS and TTL compatible |
| Power-Down Current Option | 100 µA pin-controlled power-down mode option |
| Корпус | 20-pin PLCC (J-Lead), 9 mm × 9 mm |
| Тип монтажа | Surface Mount |
| Temperature Grade | Industrial |
| Terminal Count | 20 terminals |
Руководство по цоколевке ATF16V8C-7JI в корпусе 20-pin plcc (j-lead), 9 mm × 9 mm
Цоколевка для ATF16V8C-7JI (корпус 20-pin plcc (j-lead), 9 mm × 9 mm). Эта цифровая ИС включает выводы GPIO, интерфейсы связи (UART, SPI, I2C) и выводы питания. Обратитесь к техническому описанию производителя для альтернативных функций выводов и вариантов конфигурации. Необходимо для проектирования встраиваемых систем и трассировки печатных плат.
Нет подробных данных о распиновке для ATF16V8C-7JI.
Обратитесь к даташиту для полной конфигурации выводов.
Типичное применение
ATF16V8C-7JI подходит для 6 применениеs: Industrial Control and Sequencing Logic, Legacy Interface Decoding, State Machine Implementation, Combinatorial Glue Logic, Data Acquisition and Control Front Ends, Repair and Legacy System Modernization.
Industrial Control and Sequencing Logic
The ATF16V8C-7JI fits compact industrial control blocks that require nonvolatile combinational or registered logic without a configurable FPGA. Its eight macrocells, eight outputs, and eight product terms per output provide enough structure for state decoding, interlocks, sequencing, and discrete decision logic. The 7.5 ns target speed supports short propagation paths, while the 5 V supply matches established TTL and CMOS control boards. For replacement work, engineers should confirm the exact industrial-temperature limits, unused-pin treatment, and input thresholds in the manufacturer datasheet before treating the device as qualified for new production.
Рекомендуется
Legacy Interface Decoding
The ATF16V8C-7JI can implement address, command, or signal-valid decoding around older processor and peripheral systems. Eight configurable macrocells allow address qualification and output-control equations to be consolidated in one nonvolatile PLD rather than implemented with separate TTL gates. Its 7.5 ns grade is suitable where decoded control timing must be checked against slower legacy buses, and electrically erasable flash allows firmware revisions without volatile configuration loss. The design should use the manufacturer’s timing model and verify that every output mode, feedback path, and unused pin matches the programmed fuse file.
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State Machine Implementation
The ATF16V8C-7JI is appropriate for small state machines and step-sequence controllers implemented in registered PLD modes. Eight outputs can drive enables, relays, indicators, or timing-qualified control signals, while the nonvolatile configuration preserves the implemented logic across power cycles. The 20-pin PLCC package supports compact repair-oriented designs, and the target’s 7.5 ns speed provides a defined timing basis for analyzing state transitions. Because macrocell resources and product terms are finite, engineers should complete the logic assignment and timing review before programming to avoid resource-allocation surprises.
Рекомендуется
Combinatorial Glue Logic
The ATF16V8C-7JI reduces board area when a design needs flexible combinational logic, signal qualification, or mutually exclusive control outputs. Its eight product terms per output support practical sum-of-products equations, and the electrically erasable configuration allows design changes without replacing the device. A 5 V implementation can directly interface with compatible TTL and CMOS signals, subject to the datasheet’s voltage and threshold limits. The target’s 7.5 ns timing should be included in worst-case path analysis, particularly when the PLD outputs control asynchronous machinery or must settle before a downstream latch is clocked.
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Data Acquisition and Control Front Ends
The ATF16V8C-7JI can provide control decoding, channel selection, and status aggregation in compact data-acquisition systems. Its nonvolatile macrocell configuration is useful for repeatable fixture or instrument behavior, while the seven available control outputs and eight product terms per output support typical channel-enable logic. The 7.5 ns grade helps minimize decode delay between acquisition commands and peripheral enables. System timing still depends on the external ADC, latch, and settling behavior, so the PLD delay must be included in the overall acquisition budget rather than treated as the only path delay.
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Repair and Legacy System Modernization
The ATF16V8C-7JI is particularly useful for maintaining equipment built around 20-pin PAL-compatible logic. Because its nonvolatile configuration retains the programmed equations, it can replace a failed PLD when the architecture, fuse file, and PLCC footprint are reproduced exactly. This makes the device valuable in repair, obsolescence-management, and controlled modernization programs rather than only new designs. Before substitution, compare the complete ordering code, programming algorithm, standard versus extended architecture, pin 4 behavior, power-down configuration, and temperature requirements. Electrical equivalence alone is insufficient when legacy fuse files distinguish JEDEC and extended modes.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для ATF16V8C-7JI — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | ATF16V8C-7JC | ATF16V8C-7JU | ATF16V8C-5JC | ATF16V8C-10JC |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-pin PLCC (J-Lead), 9 mm × 9 mm | 20-pin PLCC (J-Lead) | 20-pin PLCC (J-Lead) | 20-pin PLCC (J-Lead) | 20-pin PLCC (J-Lead) |
| Device Type | 16V8 SPLD | 16V8 SPLD | 16V8 SPLD | 16V8 SPLD | 16V8 SPLD |
| Speed Grade | 7.5 ns | 7.5 ns | 7.5 ns | 5 ns | 10 ns |
| Macrocells | 8 macrocells | 8 macrocells | 8 macrocells | 8 macrocells | 8 macrocells |
| Product Terms per Output | 8 product terms | 8 product terms | 8 product terms | 8 product terms | 8 product terms |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V | 5 V |
| Configuration Memory | Electrically Erasable Flash | Electrically Erasable Flash | Electrically Erasable Flash | Electrically Erasable Flash | Electrically Erasable Flash |
Ключевые отличия
- Target suffix explicitly identified as industrial grade (против ATF16V8C-7JC)
- Established 7.5 ns timing grade (против ATF16V8C-10JC)
- Faster timing option in the same ATF16V8C family (против ATF16V8C-5JC)
- Eight-output nonvolatile macrocell architecture (против ATF16V8C-7JU)
Заметки по проектированию
Use the manufacturer PLCC J-lead land pattern and verify the installed socket or PCB pads against the package drawing before ordering a substitute. The ATF16V8C-7JI uses a 20-pin PLCC package rather than a modern QFN, and small lead pitch or body-clearance differences can prevent assembly even when the logical function is equivalent. For repair assemblies, inspect socketed devices for lifted or oxidized J leads and confirm component orientation before applying programming voltage.
Build the external timing budget around the target’s 7.5 ns grade rather than the family’s 5 ns maximum. Include setup and hold requirements at receiving latches, output skew between macrocells, and the delay of any feedback paths. The 5 V interface is compatible with CMOS and TTL according to the verified family data, but actual high-level and low-level thresholds must be checked in the manufacturer datasheet against the actual supply voltage and noise margin.
Do not assume that every ATF16V8C fuse file is interchangeable. The verified datasheet excerpt distinguishes a JEDEC-compatible 16V8C without a power-down pin from a non-JEDEC 16V8CEXT arrangement, and notes that pin 4 may be available as a logic input. Confirm the architecture, programmed file, pin-4 treatment, and whether power-down is required before programming a replacement. This prevents a successful programming operation from producing incorrect board-level behavior.
Decouple the 5 V supply close to the PLCC power pins with the capacitance and placement recommended in the manufacturer datasheet. Although the ATF16V8C family offers a 100 µA pin-controlled power-down option, that figure represents a low-power state rather than normal operating consumption. Review active current, output loading, supply tolerance, and the contribution of every output state before treating the 100 µA figure as the board-level standby requirement.
Информация о соответствии
The supplied manufacturer and distributor data does not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status for the ATF16V8C-7JI.
