ATF16V8C-7JU - 7ns 16V8 EECMOS PLD | Microchip
料号： ATF16V8C-7JU ✓ 量产中ATF16V8C-7JU 概述
A programmable logic device, or PLD, is a semiconductor whose internal digital logic is configured after manufacture. The ATF16V8C belongs to the simple PLD family within the broader programmable-logic hierarchy. It provides more integration than a collection of individual gates while avoiding the software and hardware complexity of a field-programmable gate array. Its eight outputs are each allocated eight product terms, enabling combinational logic functions and registered operations to be implemented in one device.
Key features include eight macrocells, a 16-input by 8-output organization, EECMOS nonvolatile flash configuration, and a 7 ns speed grade for the ATF16V8C-7JU. The manufacturer describes the ATF16V8C family as a superset of generic 16R8 architectures, allowing direct replacement of the 16R8 family and many 20-pin combinatorial PLDs. Three configurable operating modes support different registered, combinatorial, and mixed logic arrangements.
The 20-pin PLCC package provides eight user I/O resources according to the listed device specification while retaining dedicated control functions required for programming and operation. Its ceramic LCC-20 construction is identified in the product listing as ceramic, with a 9 x 9 mm package body. The 58.8 MHz internal-frequency figure and 5 V operating voltage identify the device's speed and supply characteristics, while the 300-gate description expresses its approximate logic capacity.
Typical uses include interface control, address decoding, command sequencing, industrial automation, embedded control, and compact glue-logic implementations. Because the configuration is electrically erasable, the same PLD can be reprogrammed during development or manufacturing without relying on a one-time fuse. This is particularly useful when logic behavior evolves after prototype hardware has been laid out.
When assigning PCB connections, use the complete pin-description table in the manufacturer datasheet rather than inferring PLCC numbering from a generic 16V8 symbol. Confirm programming voltage, signal levels, clocking requirements, and unused-pin treatment in the same document. PCB layout should preserve the device footprint, provide adequate clearance around the ceramic package, and route programming signals away from sensitive analog or high-speed nets.
This page combines the manufacturer's device description, the exact MPN specifications, sourcing status, package details, and practical implementation guidance. It also distinguishes the confirmed 7 ns ATF16V8C-7JU from related slower or differently qualified ATF16V8 devices, helping engineers identify when a true pin-compatible substitution is available and when redesign or requalification is necessary.
直接替换替代料： ATF16V8C-7JU ——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-7JU （相同外形与封装尺寸） ——差异在于 Device Type, Mounting Type, Supply Voltage, Architecture, Package.
该产品暂无直接替换替代料。
请求替代料ATF16V8C-7JU 最大额定值与电气特性
| Device Type | 16V8 electrically erasable CMOS programmable logic device |
| Programmable Logic Architecture | Simple PLD with 8 macrocells |
| Macrocells | 8 macrocells |
| Logic Organization | 16 inputs by 8 outputs |
| Configuration Technology | EECMOS electrically erasable flash memory |
| Target MPN Speed | 7 ns |
| Internal Frequency | 58.8 MHz |
| 电源电压 | 5 V |
| Logic Family | CMOS |
| Approximate Gate Capacity | 300 gates |
| User I/O | 8 pins |
| 引脚数量 | 20 pins |
| Package Type | Ceramic LCC-20 |
| Package Dimension | 9 x 9 mm PLCC |
| 安装类型 | Surface mount |
| Power-Down Mode | Pin-controlled power-down mode |
| Power-Down Current | 100 µA for the ATF16V8C family |
| Operating Modes | 3 configurable modes of operation |
| Output Product Terms | 8 product terms per output |
ATF16V8C-7JU 9 x 9 mm plcc 引脚配置指南
ATF16V8C-7JU（9 x 9 mm plcc 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-7JU.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ATF16V8C-7JU 适用于 6 应用s: Industrial Control and Automation, Address Decoding and Interface Control, Embedded Control Glue Logic, Legacy Instrumentation and Test Logic, Programmable Timing and State Sequencing, Prototype and Legacy Board Upgrade.
Industrial Control and Automation
The ATF16V8C-7JU is useful for compact industrial control logic where a 16V8 device can combine decoding, sequencing, and discrete Boolean functions. Its 8 macrocells and three configurable operating modes allow registered and combinational sections to coexist, while the 7 ns target speed supports timing paths shorter than the related 15 ns ATF16V8B-15JU. EECMOS flash configuration also permits design revisions without changing the PCB when only the programmed logic changes.
推荐
Address Decoding and Interface Control
The ATF16V8C-7JU can implement address decode, chip-select generation, bus arbitration, and state-machine control in a compact interface subsystem. Its 16-input by 8-output organization provides dedicated logic channels for control outputs, while the 8 macrocells and eight product terms per output accommodate moderately complex Boolean equations. The 7 ns speed class gives designers additional timing margin relative to the 15 ns ATF16V8B-15JU when control paths are short but consequential.
推荐
Embedded Control Glue Logic
The ATF16V8C-7JU fits legacy embedded platforms that still require programmable glue logic alongside a microcontroller or processor. It can consolidate reset coordination, command sequencing, interrupt qualification, and peripheral interlock functions into a 20-pin PLCC. Electrical erasure permits firmware-driven logic updates during development, and the three operating modes let the designer mix combinational and registered functions. The 7 ns target speed is advantageous when control signals must meet a compact external timing budget.
推荐
Legacy Instrumentation and Test Logic
The ATF16V8C-7JU can implement measurement sequencing, range selection, status decoding, and front-panel control logic in legacy instrumentation. Its nonvolatile programmable architecture allows alternate operating modes to be stored and selected without adding a separate microcontroller. The 20-pin PLCC footprint also supports board upgrades from older combinatorial PLDs because the manufacturer describes the ATF16V8C architecture as a superset of the 16R8 family and many 20-pin devices.
推荐
Programmable Timing and State Sequencing
The ATF16V8C-7JU is suitable for deterministic sequencing across sensors, relays, and actuators where a small state machine must coordinate multiple outputs. Three configurable operating modes support the required mix of combinational equations and registered transitions, while the 7 ns speed grade helps reduce uncertainty in control-path delay. The device also accepts electrical configuration updates, making it practical for prototype refinement and production programming from a controlled logic source.
推荐
Prototype and Legacy Board Upgrade
The ATF16V8C-7JU supports repair, modernization, and functional expansion of boards built around 20-pin programmable logic devices. Its EECMOS architecture permits electrical erasing and reprogramming, allowing revised Boolean behavior to be loaded after hardware assembly. The manufacturer identifies the family as a superset of the 16R8 architecture, but an upgrade must still be checked for exact pin compatibility, supply voltage, output timing, programming algorithm, and whether registered or combinational behavior matches the original circuit.
推荐
推荐产品汇总
工程参考数据： ATF16V8C-7JU ——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 |
|---|---|
| Manufacturer | Microchip Technology |
| Package | 20-pin ceramic PLCC, 9 x 9 mm |
| Device Architecture | 16 inputs by 8 outputs |
| Macrocells | 8 macrocells |
| Configuration Technology | EECMOS electrically erasable flash memory |
| Target Speed | 7 ns |
| Internal Frequency | 58.8 MHz |
| Supply Voltage | 5 V |
| Output Product Terms | 8 product terms per output |
| Power-Down Current | 100 µA for the ATF16V8C family |
| Logic Family | CMOS |
| User I/O | 8 pins |
关键差异点
- Faster target speed than the related ATF16V8B-15JU （对比 ATF16V8B-15JU)
- Electrically erasable flash configuration （对比 ATF16V8B-15JU)
- Configurable mixed operating modes （对比 ATF16V8B-15JU)
设计说明
Do not treat the ATF16V8B-15JU as a drop-in substitute solely because both devices use a 20-pin PLCC. The ATF16V8C-7JU has a 7 ns target speed, while the ATF16V8B-15JU is identified at 15 ns. Before substitution, compare every pin function, programming algorithm, supply requirement, registered-output behavior, and maximum propagation delay. A footprint match alone does not guarantee timing or logic compatibility.
Follow the manufacturer datasheet when assigning PCB traces because the ATF16V8C supports multiple operating modes and the listed user-I/O count does not describe every physical pin. Keep programming and dedicated control nets away from sensitive analog routes, preserve the ceramic PLCC land pattern exactly, and provide appropriate clearance around the 9 x 9 mm package. Validate orientation and pin 1 against the package drawing before fabrication.
Design the 5 V rail to support both normal operation and programming. Decouple the supply close to the ATF16V8C-7JU with the capacitance and placement prescribed by the manufacturer datasheet, and account for the pin-controlled 100 µA power-down option in the ATF16V8C family. If the PLCC is used in legacy equipment with a noisy supply, verify sequencing and signal levels before enabling the device.
The 7 ns speed class means that output timing and board propagation cannot be treated as irrelevant even though the device implements relatively simple logic. Check the required setup and hold times, use controlled-impedance routing where clocks are involved, and avoid unnecessary stubs on high-speed control nets. Use the manufacturer timing diagrams and device models to evaluate paths involving external counters, transceivers, or memory devices.
合规信息
The manufacturer documentation confirms EECMOS flash-memory technology but does not explicitly state the requested environmental compliance statuses. AEC-Q100 is not applicable to this industrial programmable logic device.
