ATF16LV8C-10SC - 10ns 16V8 EECMOS PLD | Microchip
MPN： ATF16LV8C-10SC ✗ 停產ATF16LV8C-10SC 概覽
A simple programmable logic device is a configurable semiconductor that implements digital logic functions through programmed AND/OR product terms. The ATF16LV8C belongs to the broader hierarchy of programmable logic devices, combining the density of a small field-programmable gate array with the simpler architecture of a PAL-style device. Its eight macrocells and configurable operating modes make it useful for compact control, decoding, address translation, interface adaptation, and fixed-format logic consolidation.
The primary performance features include a maximum pin-to-pin delay of 10 ns, eight individually allocated macrocells, and eight product terms for each output. Automatic software-configured operating modes allow more complex logic functions without requiring a large gate-array implementation. Low-power operation includes typical 100 nA standby current, while the dedicated power-down control path can reduce current to no more than 5 µA when the circuit does not require continuous logic evaluation.
Technically, the ATF16LV8C uses electrically erasable CMOS technology based on the manufacturer's proven flash-memory process. Its architecture emulates many 20-pin PAL devices and supports legacy 16R8 and combinatorial logic conversions. This makes it especially useful for maintaining or repairing equipment whose original mask-programmed or fuse-programmed logic has become difficult to source. Programming still requires the correct logic-development environment and a compatible device programmer.
Typical implementations include industrial control logic, decoding and multiplexing networks, keyboard or panel-interface controllers, small peripheral adapters, legacy equipment service replacements, and compact embedded subsystems. Because each output is organized around a macrocell and multiple product terms, the device can consolidate several gates of fixed Boolean logic while preserving predictable propagation delay.
The principal design consideration is compatibility. The replacement must use the same 20-pin SOIC footprint, supply voltage, output architecture, and programming method; electrical similarity alone is insufficient for a true drop-in upgrade. Existing schematics and board documentation should be reviewed before programming a substitute, especially when the replacement has a different operating-temperature designation or speed grade.
This page combines the manufacturer's device architecture description with cross-reference findings, application guidance, package details, and selection criteria. It focuses on practical replacement planning, programmable-logic architecture, power behavior, and the differences that matter when deciding whether a candidate is genuinely pin-compatible.
直接替換替代品，適用於 ATF16LV8C-10SC — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ATF16LV8C-10SC （相同外形與佔位） — 差異在於 Package, Device Type, Power-Down Current, Programmable Technology, Maximum Pin-to-Pin Delay.
此產品無可直接替換的替代品。
申請替代品ATF16LV8C-10SC 最大額定值與電氣特性
| Device Type | 16V8 electrically erasable CMOS programmable logic device |
| Programmable Technology | EECMOS flash-memory-based |
| Number of Macrocells | 8 macrocells |
| 輸出數量 | 8 outputs |
| Product Terms per Output | 8 product terms |
| Maximum Pin-to-Pin Delay | 10 ns |
| Supply Voltage Range | 3 V to 5.5 V |
| Power-Down Current | 5 µA maximum |
| Typical Standby Current | 100 nA |
| Input Compatibility | TTL compatible |
| Output Compatibility | TTL compatible |
| 封裝 | 20-pin SOIC, 7.50 mm width |
| 安裝類型 | Surface mount |
| Operating Modes | 3 software-configured modes |
| Legacy Architecture Support | Direct replacement of the 16R8 family and most 20-pin combinatorial PLDs |
| Programming Type | Electrically erasable programmable logic |
ATF16LV8C-10SC 腳位配置
| 腳位 1 | CLK — Dedicated clock input |
| 腳位 2 | I0 — Logic input |
| 腳位 3 | I1 — Logic input |
| 腳位 4 | I2 — Logic input |
| 腳位 5 | I3 — Logic input |
| 腳位 6 | I4 — Logic input |
| 腳位 7 | I5 — Logic input |
| 腳位 8 | I6 — Logic input |
| 腳位 9 | GND — Ground connection |
| 腳位 10 | OE — Output enable input |
| 腳位 11 | I7 — Logic input |
| 腳位 12 | O0 — Programmable output |
| 腳位 13 | O1 — Programmable output |
| 腳位 14 | O2 — Programmable output |
| 腳位 15 | O3 — Programmable output |
| 腳位 16 | O4 — Programmable output |
| 腳位 17 | O5 — Programmable output |
| 腳位 18 | O6 — Programmable output |
| 腳位 19 | O7 — Programmable output |
| 腳位 20 | VCC — Positive power supply |
典型應用
ATF16LV8C-10SC 適用於 6 應用s: Industrial Control Logic Consolidation, Legacy Equipment Service Replacement, Decoder and Multiplexer Networks, Embedded Peripheral Interface Control, Keyboard and Panel Interface Logic, Compact Programmable Control Subsystem.
Industrial Control Logic Consolidation
The ATF16LV8C-10SC is useful for consolidating fixed Boolean control functions in industrial equipment where an 8-macrocell device provides more capacity than a basic PAL without requiring a larger FPGA. Each output supports eight product terms, and the three software-configured modes allow more complex expressions than the original 16R8 architecture. Its 10 ns maximum pin-to-pin delay supports deterministic control paths, while the 3 V to 5.5 V operating range matches common legacy logic supply levels. Engineers should preserve the original pin mapping, verify input and output timing, and confirm that the programmed logic file remains available for maintenance production.
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Legacy Equipment Service Replacement
The ATF16LV8C-10SC supports service restoration of legacy electronics when the original device was a 16V8-compatible PLD and the board uses the 20-pin SOIC footprint. Electrically erasable flash technology allows the replacement to be programmed with recovered or newly documented logic instead of reproducing a custom mask-programmed part. The device can emulate the 16R8 family and most 20-pin combinatorial PLDs, which broadens its usefulness for obsolete controls and instruments. Before installation, compare every pin, verify the 3 V to 5.5 V supply tolerance, and reproduce the original logic in the programming software.
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Decoder and Multiplexer Networks
The ATF16LV8C-10SC can implement decoding, multiplexing, and address-selection functions where eight outputs each require as many as eight Boolean product terms. Its 10 ns speed grade provides a defined maximum pin-to-pin delay, helping designers establish timing margin for select and data paths. The 20-pin SOIC package also allows the logic to remain close to the devices being controlled, reducing board area compared with multiple discrete gate packages. Engineers should account for input and output rise times, verify TTL-compatible signal levels, and check that the output equations fit the available product terms and macrocell architecture.
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Embedded Peripheral Interface Control
The ATF16LV8C-10SC can implement fixed sequencing, handshake, and protocol-format logic between an embedded processor and discrete peripherals. Eight macrocells provide enough product-term capacity for common address decode, latch control, interrupt routing, and data-format functions. Its low standby current of 100 nA typical and 5 µA maximum power-down current are beneficial in equipment that spends substantial time idle, although external pull resistors and attached devices must also be included in a full power budget. Confirm reset behavior, clock assumptions, and every signal direction in the pin-description table before creating the programming file.
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Keyboard and Panel Interface Logic
The ATF16LV8C-10SC can implement scanning, debounce-related logic, command decoding, and indicator-control functions in keyboard, test-panel, and operator-console equipment. The 10 ns delay rating permits short combinational paths between decoded inputs and output controls, while the 20-pin SOIC package keeps the implementation compact. Because the device is electrically erasable, the same hardware can support multiple panel revisions by reprogramming the logic rather than changing discrete components. Validate scan timing, contact-bounce assumptions, output drive requirements, and power-down behavior against the original system to prevent hidden timing incompatibilities.
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Compact Programmable Control Subsystem
The ATF16LV8C-10SC can serve as a small programmable logic companion to a microcontroller in compact control subsystems. It is useful when several deterministic gate-level functions must execute concurrently with a processor, such as pulse stretching, interrupt qualification, data routing, or redundant timing checks. The 10 ns speed grade and three operating modes provide design flexibility without moving to a larger programmable gate array. For reliable integration, define signal direction and reset state for every pin, verify that supply sequencing meets device requirements, and include the programmed configuration in controlled production documentation for maintainability.
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推薦產品摘要
工程參考資料，適用於 ATF16LV8C-10SC — 比較、設計指引及合規資訊。
選型指南
設計說明
Treat the ATF16LV8C-10SC as a footprint-specific replacement rather than a generic 20-pin logic IC. Confirm the original device uses the 20-pin SOIC arrangement, then preserve pin 1 orientation and the manufacturer's decoupling guidance in the board layout. Place input and output conditioning components near their associated pins, and avoid routing sensitive asynchronous signals adjacent to the clock and programmable output paths to reduce coupling during switching.
A shared package name does not establish drop-in compatibility. Verify the pin functions, electrical characteristics, memory technology, programming algorithm, and required logic file before substituting an ATF16LV8C variant. A temperature-grade suffix, a slower speed grade, or a different package code can make two devices unsuitable for the same PCB even when both are described as 16V8 devices.
Design the supply rail for the documented 3 V to 5.5 V operating range and include suitable local bypass capacitance. Although the device can enter a pin-controlled power-down state with no more than 5 µA current, total board consumption depends on external pull resistors, input states, and attached logic. Ensure the OE and power-down signals have defined levels during reset and startup so the outputs cannot enter an unintended state.
Use the 10 ns maximum pin-to-pin-delay specification as a complete-path limit rather than assuming each macrocell contributes only a fraction of that value. Include external clock jitter, setup time, hold time, and output loading when evaluating timing margin. For long interconnects or slow external nodes, use Schmitt-trigger buffers where appropriate or partition the logic so critical paths remain short and deterministic.
合規資訊
No RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations were identified in the available manufacturer or distributor summaries. Confirm current compliance documentation directly with Microchip Technology before using the part in regulated new-production programs.
