ATF16V8C-5XC - 5ns 16V8 Flash PLD | Microchip
料号： ATF16V8C-5XC ✗ 停产ATF16V8C-5XC 概述
A programmable logic device, or PLD, is a semiconductor whose internal digital logic connections can be configured after manufacture. The ATF16V8C belongs to the simple PLD hierarchy: PLD → simple PLD → electrically erasable PLD → EECMOS Flash PLD. Unlike a mask-programmed PAL or a one-time-programmable fuse device, its Flash configuration can be erased and reprogrammed, simplifying logic updates, prototype corrections, and board rework.
The principal features include eight macrocells, eight outputs, eight inputs, a 5 ns maximum pin-to-pin delay, and operation across the 5 V supply range specified by the manufacturer datasheet. The architecture is a superset of generic 16R8 devices and can emulate many 20-pin combinatorial PLDs. Each output is allocated eight product terms, while automatically selected operating modes support registered, combinatorial, and more complex logic functions.
The ATF16V8C-5XC uses Atmel's proven electrically erasable Flash memory technology rather than ultraviolet-erasable EPROM. Flash programming supports reusable development cycles, while the low-cost software flow helps simplify device programming. A pin-controlled power-down mode can reduce current when the logic does not need to remain active, although exact current and operating-mode limits must be confirmed in the manufacturer datasheet.
Typical uses include industrial control logic, decoding and multiplexing, glue logic, interface conditioning, and other fixed digital functions requiring up to eight outputs and a 5 ns performance class. Its 20-pin TSSOP package is appropriate for compact surface-mount assemblies, but designers should verify land pattern, pin assignment, and signal timing against the official datasheet before layout release.
The primary design consideration is that device configuration, setup times, output feedback, OE handling, and power-down behavior must be treated as part of the timing design. The datasheet should be checked for the exact operating mode selected by the programming file, especially when registered outputs or feedback paths are used. PCB design should also provide a stable supply and clean routing for high-speed digital edges.
This page consolidates verified manufacturer and distributor information, practical programming and layout guidance, and a parameter comparison of same-package ATF16V8C speed alternatives. It also distinguishes verified facts from fields that require confirmation from the complete datasheet, preventing unverified timing, pinout, and pricing assumptions from being presented as engineering data.
直接替换替代料： ATF16V8C-5XC ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ATF16V8C-5XC （相同外形与封装尺寸） ——差异在于 Architecture, Package.
ATF16V8C-7XC
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →ATF16V8C-10XC
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ATF16V8C-15XC
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ATF16V8C-20XC
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ATF16V8C-25XC
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ATF16V8C-5XC 最大额定值与电气特性
| Product Type | 16V8 Programmable Logic Device (PLD) |
| Programmable Technology | EE Flash PLD using EECMOS technology |
| Number of Macrocells | 8 macrocells |
| 输出数量 | 8 outputs |
| Maximum Pin-to-Pin Delay | 5 ns |
| 电源电压 | 5 V |
| Industrial Supply Voltage Range | 5 V ±10% |
| Commercial Supply Voltage Range | 5 V ±5% |
| Architecture | Superset of generic 16R8 architecture |
| Product Terms per Output | 8 product terms |
| Operating Modes | Registered, combinatorial, and complex logic modes |
| Power-Down Mode | Pin-controlled; 100 µA option stated for the device family |
| 封装 | 20-TSSOP (0.173 inch, 4.40 mm width) |
| 安装类型 | Surface mount |
| Packaging | Tube |
| Lead-Free Status | Contains lead |
ATF16V8C-5XC 20-tssop (0.173 inch, 4.40 mm width) 引脚配置指南
ATF16V8C-5XC（20-tssop (0.173 inch, 4.40 mm width) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： ATF16V8C-5XC.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ATF16V8C-5XC 适用于 6 应用s: Industrial Control and Automation Logic, Legacy Interface and Bus Decoding, Product Test and System Diagnostics, Embedded Peripheral Control, Instrumentation Signal Conditioning, Communication Equipment Support Logic.
Industrial Control and Automation Logic
The ATF16V8C-5XC is suitable for compact control logic where a 16V8 architecture and 5 ns maximum pin-to-pin delay are needed. Its eight macrocells, eight outputs, and eight product terms per output can implement decoding, state-transition, interlocking, and output-selection functions that would otherwise consume multiple conventional gates. The device’s 20-TSSOP package also supports compact surface-mount control boards. Because this ordering code is marked obsolete, it is most appropriate for maintenance, replication, and legacy-system support. New production designs should confirm availability and verify all timing against the manufacturer datasheet.
推荐
Legacy Interface and Bus Decoding
The ATF16V8C-5XC can implement address decoding, chip-select generation, data routing, and command qualification in legacy digital interfaces. Its 5 ns speed grade provides more timing margin than slower PLD options when combinational outputs participate in multi-level decision paths, while the electrically erasable Flash configuration allows a design to be revised without replacing the entire device. Each of the eight outputs can use eight product terms, providing enough logic depth for many address and control functions. Engineers should still validate output feedback, OE timing, and operating-mode behavior against the complete pinout and timing tables.
推荐
Product Test and System Diagnostics
The ATF16V8C-5XC is applicable to compact board test, fixture-control, and diagnostic logic where discrete gate counts would increase board area. Eight macrocells can consolidate stimulus selection, pass/fail decisions, and control-output generation into one reprogrammable device. Its 5 ns maximum pin-to-pin delay helps preserve margin in short combinational test paths, and Flash technology permits configuration updates as test requirements evolve. Because the exact part is obsolete, engineers should verify programmer availability, supply continuity, and any required safety or quality documentation before using it in new production test equipment.
推荐
Embedded Peripheral Control
The ATF16V8C-5XC can serve as dedicated glue logic between a microcontroller, memory, and peripheral devices. Eight configurable outputs and flexible registered or combinatorial modes support chip enables, arbitration, interrupt qualification, reset sequencing, and data-format adaptation. A 5 ns maximum propagation delay is useful when control signals must be resolved within short system timing windows. The 20-TSSOP package reduces board area compared with larger through-hole PAL devices, although an obsolete ordering code should be reserved for legacy platforms or approved repair applications rather than new embedded platforms with long-term sourcing requirements.
推荐
Instrumentation Signal Conditioning
The ATF16V8C-5XC can implement front-panel sequencing, range selection, status encoding, and control interlocks in electronic test and measurement equipment. The 16V8 architecture provides a compact way to realize multiple related Boolean functions while keeping the design programmable for later revisions. Its 5 ns pin-to-pin speed class can improve response in short control chains, and the TSSOP package supports panel and instrument PCB density. Timing closure must account for the selected registered or combinatorial mode, clock distribution, output enable behavior, and supply tolerance; those details are not fully available in the supplied search excerpts.
推荐
Communication Equipment Support Logic
The ATF16V8C-5XC is suitable for line-interface support functions such as channel selection, timing qualification, frame decoding, and alarm generation. The eight macrocells and selectable operating modes allow relatively complex combinational and registered functions to be consolidated into one 20-TSSOP device. Its 5 ns maximum propagation delay provides useful margin for short local control paths, while Flash configuration simplifies reuse of the same board across several related protocols. Because this exact MPN is obsolete and no complete pin table was provided, production use requires confirmation of supply, pin compatibility, setup and hold timing, and programming-tool support.
推荐
推荐产品汇总
工程参考数据： ATF16V8C-5XC ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | ATF16V8C-7XC | ATF16V8C-10XC | ATF16V8C-15XC | ATF16V8C-20XC | ATF16V8C-25XC |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-TSSOP | 20-TSSOP | 20-TSSOP | 20-TSSOP | 20-TSSOP | 20-TSSOP |
| Maximum Pin-to-Pin Delay | 5 ns | 7 ns | 10 ns | 15 ns | 20 ns | 25 ns |
| Product Family | ATF16V8C | ATF16V8C | ATF16V8C | ATF16V8C | ATF16V8C | ATF16V8C |
| Number of Macrocells | 8 macrocells | 8 macrocells | 8 macrocells | 8 macrocells | 8 macrocells | 8 macrocells |
| Programmable Technology | EE Flash PLD using EECMOS technology | EE Flash PLD using EECMOS technology | EE Flash PLD using EECMOS technology | EE Flash PLD using EECMOS technology | EE Flash PLD using EECMOS technology | EE Flash PLD using EECMOS technology |
| Number of Outputs | 8 outputs | 8 outputs | 8 outputs | 8 outputs | 8 outputs | 8 outputs |
| Supply Voltage | 5 V nominal | 5 V nominal | 5 V nominal | 5 V nominal | 5 V nominal | 5 V nominal |
关键差异点
- Faster same-family timing class （对比 ATF16V8C-25XC)
- Shorter timing margin for critical local control paths （对比 ATF16V8C-10XC)
- Reusable Flash configuration within the same architecture （对比 ATF16LV8C-10XC)
- Compact 20-TSSOP implementation with eight outputs （对比 ATF16V8C-15XC)
设计说明
Do not treat every ATF16V8C suffix as interchangeable without checking the package, speed grade, and temperature grade. The verified target uses the “-5XC” ordering code and a 20-TSSOP package. Before substituting another family member, compare the manufacturer pin configuration, programmed architecture, supply range, setup and hold timing, output behavior, and package drawing. A shared 16V8 family name does not by itself prove that two programmed devices are drop-in replacements.
The ATF16V8C-5XC is a 5 ns maximum pin-to-pin device, so clock, feedback, and output-enable paths require disciplined routing. Keep critical traces short, avoid unnecessary stubs, provide a continuous ground reference, and route the clock away from switching outputs where practical. Place any required bypass capacitance close to the supply and ground pins according to the official layout guidance. Validate setup and hold timing with actual board and load assumptions rather than relying only on the 5 ns headline specification.
Use the 5 V nominal operating range specified for the applicable temperature grade and verify the exact limits for the “XC” suffix in the manufacturer datasheet. Power-down can reduce supply current when the logic is idle, but the OE and PD pins must be sequenced without violating the device’s input-voltage and timing requirements. Since the exact part is obsolete, also confirm whether an authorized distributor can provide traceable production quantities rather than relying on spot-market inventory.
Use the official 20-TSSOP land pattern and confirm its pin-1 orientation against the package drawing before PCB release. The supplied excerpts verify the TSSOP-20 package but do not provide the numbered signal table, so no unverified pin mapping should be used. Check solder-reflow profile, tube-to-board handling, and exposed lead clearances during mechanical review. For legacy repairs, inspect the original assembly for paste residue or hand soldering before fitting the replacement.
合规信息
The verified distributor specification states that the ATF16V8C-5XC contains lead. RoHS, REACH, halogen-free, and conflict-minerals declarations were not included in the supplied data and are therefore recorded as unknown. AEC-Q100 is not applicable because this is a programmable logic device rather than an automotive-qualified semiconductor product.
