ATF16V8B-10JC - 10ns 8-Macrocell EEPLD | Microchip Technology
料号： ATF16V8B-10JC ✓ 量产中ATF16V8B-10JC 概述
An EEPLD is a programmable-logic IC that stores its logic configuration in electrically erasable nonvolatile memory. Within the product hierarchy, an EEPLD is a simple PLD, a type of programmable-logic device and a semiconductor. Its practical advantage over a fuse-programmed PAL is field programmability: the ATF16V8B family can be configured and reprogrammed, making it suitable for prototypes, legacy product refreshes, and small control systems whose logic requirements may evolve.
Key features include a 10 ns speed grade, eight macrocells with eight product terms per output, and three operating modes selected automatically by software. The manufacturer describes the device as a 250-gate, standard-power, green-package part with a 5 V supply. It emulates many 20-pin PAL devices and most 20-pin combinatorial PLDs, reducing the need for a redesign when consolidating older programmable-logic implementations.
The ATF16V8B architecture supports flexible input and output assignments through its fuse map. Unlike a general-purpose microcontroller, the part executes only the Boolean equations placed into its macrocells, so its behavior is deterministic and does not require a clock when configured for combinational operation. Registered configurations can add sequential logic while retaining the compact 20-pin footprint and simple programming workflow.
Typical uses include industrial automation, interface decoding, control-panel logic, telecommunications infrastructure, and consumer-equipment glue logic. The part is especially relevant to systems that previously used 20-pin PALs or simple GAL devices. Engineers should preserve the exact fuse map and verify package pin orientation during replacement, since logic configuration compatibility is as important as electrical and pin compatibility.
The main design consideration is that a drop-in package does not guarantee identical behavior after programming. The replacement device must use a compatible JEDEC fuse map, and any pin-preset configuration, registered-logic mode, power-up behavior, and unused-pin treatment must be checked against the original design. This page combines verified manufacturer and distributor information with practical selection and replacement guidance.
直接替换替代料： ATF16V8B-10JC ——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： ATF16V8B-10JC （相同外形与封装尺寸） ——差异在于 Device Type, Package.
ATF16V8BQ-10JC
✅ 直接替换📋 参考替代料（不在目录中）
ATF16V8B-10JI
✅ 直接替换联系询价
查看数据手册 →ATF16V8B-10JU
✅ 直接替换📋 参考替代料（不在目录中）
ATF16V8C-10JC
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ATF16V8BQL-10JC
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ATF16V8B-10JC 最大额定值与电气特性
| Device Type | 16V8 electrically erasable programmable logic device (EEPLD) |
| Architecture | 8 macrocells with 8 product terms per output |
| Equivalent Gate Capacity | 250 gates |
| 电源电压 | 5 V |
| Propagation Delay | 10 ns |
| Maximum Inputs | 16 inputs |
| I/O Outputs | 8 I/O outputs |
| Programming Technology | Electrically erasable Flash memory |
| 封装 | 20-pin PLCC (9x9 mm), J-lead |
| 安装类型 | Surface mount |
| Package Code | QCCJ |
| Terminals | 20 terminals |
| Package Shape | Square |
| Power Class | Standard power |
| Operating Modes | 3 software-configured modes |
| Logic Compatibility | Emulates many 20-pin PAL devices and most 20-pin combinatorial PLDs |
| Commercial Temperature Grade | Commercial |
ATF16V8B-10JC square 引脚配置指南
ATF16V8B-10JC（square 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： ATF16V8B-10JC.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ATF16V8B-10JC 适用于 6 应用s: Industrial Automation Interface Logic, Telecommunications Equipment Control, Legacy 20-Pin PAL Consolidation, Consumer Equipment Glue Logic, Address Decoding and Memory Control, Programmable Control Panel Logic.
Industrial Automation Interface Logic
The ATF16V8B-10JC fits industrial interface and control logic that requires deterministic combinational behavior without the overhead of a microcontroller. According to the manufacturer datasheet, its eight macrocells can implement multiple Boolean functions with eight product terms per output, while the 10 ns propagation delay provides useful timing margin for address decoding, command translation, and interlock logic. The device is installed in a 20-pin PLCC package, simplifying replacement of legacy 20-pin PAL designs. Its electrically erasable Flash configuration permits firmware-style logic updates during commissioning without socketed parts. Engineers should verify the commercial temperature range against the enclosure environment and confirm that the JEDEC fuse map matches the original logic.
推荐
Telecommunications Equipment Control
The ATF16V8B-10JC is appropriate for compact control and status logic in telecommunications equipment where line-card interfaces require deterministic decoding. The manufacturer describes a 5 V, 250-gate EEPLD with up to 16 inputs, 8 I/O outputs, three software-selected operating modes, and a 10 ns speed grade. Those resources allow engineers to consolidate address decode, alarm masking, and command sequencing into one 20-pin PLCC device. Compared with a software-based controller, the ATF16V8B executes its stored equations directly and requires no firmware execution loop. For replacement work, validate the fuse map, registered-versus-combinational configuration, and unused-pin states rather than relying on package identity alone.
推荐
Legacy 20-Pin PAL Consolidation
The ATF16V8B-10JC is particularly useful when consolidating multiple legacy 20-pin PAL implementations into a programmable alternative. According to the Microchip Technology manufacturer datasheet, the architecture emulates many 20-pin PAL devices and most 20-pin combinatorial PLDs. Its eight outputs, eight macrocells, and eight product terms per output make it well suited to Boolean decoding and simple control equations. Electrically erasable Flash configuration also avoids the one-time programming limitation of fuse-based PALs, allowing configuration revisions during maintenance. Migration should begin with a fuse-map comparison because Microchip’s replacement guidance requires JEDEC fusemap compatibility even when the electrical pin arrangement matches.
推荐
Consumer Equipment Glue Logic
The ATF16V8B-10JC can implement board-level glue logic in consumer equipment where fixed Boolean decoding, mode selection, or indicator control is needed. According to the verified manufacturer information, the device supplies 250 gates of logic in a 20-pin PLCC package, supports up to 16 inputs and 8 I/O outputs, and operates from a 5 V supply. That combination allows multiple combinational functions to replace scattered gates without introducing a larger microcontroller. The 10 ns grade also provides more timing margin than slower legacy PALs in many control paths. Because the packaged part is identified as commercial grade, it should remain within its specified environmental limits. Confirm its power-up preset and configured output states during power-supply sequencing tests.
推荐
Address Decoding and Memory Control
The ATF16V8B-10JC is suitable for fixed address decoding, chip-select generation, and simple memory-control interlocks in 5 V digital systems. According to the Microchip Technology manufacturer datasheet, the device has eight macrocells, three operating modes, and a 10 ns propagation delay. These characteristics support multiple decode equations and registered output configurations while preserving the standard 20-pin PAL footprint. The electrically erasable architecture makes the part useful during prototype development because decode maps can be revised more easily than fuse-programmed PAL logic. Verify setup and hold timing in the target system, especially if the original design used a registered output mode. The supplied excerpts do not provide a complete pin table, so engineers should check the official diagram and fuse map before layout changes.
推荐
Programmable Control Panel Logic
The ATF16V8B-10JC can implement key scanning, mode encoding, indicator-state decoding, and switch-condition logic in a compact control panel. According to the manufacturer product information, the device provides 16 inputs and 8 I/O outputs in a 20-pin PLCC package, with each output supported by eight product terms. This lets engineers consolidate several small combinational circuits into one deterministic programmable-logic device. A 10 ns propagation delay can support moderate scan and decoding rates while the nonvolatile Flash configuration preserves the logic between power cycles. When replacing a GAL16V8 or PAL implementation, confirm JEDEC fuse-map compatibility, pin presets, and the behavior of unused inputs. A microcontroller such as an ATMEGA device may be preferable when scan matrix complexity, serial diagnostics, or firmware maintenance dominates.
推荐
推荐产品汇总
工程参考数据： ATF16V8B-10JC ——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 | ATF16V8BQ-10JC | ATF16V8B-10JI | ATF16V8B-10JU | ATF16V8B-10PC | ATF16V8C-10JC |
|---|---|---|---|---|---|---|
| Package | 20-pin PLCC (9x9 mm), J-lead | 20-pin PLCC (9x9 mm), J-lead | 20-pin PLCC (9x9 mm), J-lead | 20-pin PLCC (9x9 mm), J-lead | 20-pin PLCC (9x9 mm), J-lead | 20-pin PLCC (9x9 mm), J-lead |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Device Architecture | 16V8 EEPLD with 8 macrocells | 16V8 EEPLD with 8 macrocells | 16V8 EEPLD with 8 macrocells | 16V8 EEPLD with 8 macrocells | 16V8 EEPLD with 8 macrocells | 16V8-family EEPLD |
| Propagation Delay | 10 ns | 10 ns | 10 ns | 10 ns | 10 ns | 10 ns |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
| Programming Technology | Electrically erasable Flash | Electrically erasable Flash | Electrically erasable Flash | Electrically erasable Flash | Electrically erasable Flash | Electrically erasable Flash |
关键差异点
- Reprogrammable logic with legacy PAL footprint support （对比 ATF16V8B-10PC)
- Commercial and industrial temperature options within the same family （对比 ATF16V8B-10JI)
- Automotive-oriented family option （对比 ATF16V8BQ-10JC)
设计说明
Do not assume that a matching 20-pin PLCC package guarantees a functional replacement. Microchip’s GAL16V8 replacement guidance requires pin-to-pin and JEDEC fuse-map compatibility, while noting minor electrical differences may exist. Before substituting, compare the fuse map, registered or combinatorial operating mode, output-enable behavior, power-up preset, and treatment of unused inputs. If the programming file was created for a different architecture, regenerate it with compatible PLD development software before production programming.
Treat the ATF16V8B-10JC as a 5 V digital device and provide clean, decoupled supply connections at the package. The supplied excerpts do not include the recommended input, output, or bypass capacitor values, so those must be taken from the official manufacturer datasheet rather than guessed. Keep programming and normal logic-operation requirements separated, and maintain the correct J-lead PLCC orientation on the board. Because the supplied pinout was incomplete, verify every land pattern against the official package drawing before fabrication.
Account for both active and standby current when planning the logic rail, particularly for a board containing several programmable-logic devices. The retrieved data identifies the ATF16V8B as a standard-power 5 V family and separately lists power-saving BQL variants, showing that power mode is a meaningful selection criterion. The target’s detailed supply-current limits were not included in the supplied excerpts, so use the manufacturer values for worst-case rail sizing and do not substitute the lower-power BQL part without reviewing its timing and electrical characteristics.
合规信息
The manufacturer product excerpt describes a green package but does not explicitly confirm RoHS, REACH, lead-free, halogen-free, or conflict-minerals declarations. The standard ATF16V8B-10JC is treated as not qualified for AEC-Q100; the automotive-oriented ATF16V8BQ-10JC is listed separately as an alternative.
