Microchip Technology AT17F080-30JC

Overview

AT17F080-30JC from Atmel is an 8-Mbit in-system programmable serial configuration PROM designed to store FPGA bitstreams for SRAM-based FPGAs including Xilinx Virtex®, Spartan®, XC4000™, and Altera FLEX® devices. It supports 33 MHz serial download, 5V-tolerant I/O, 3.3V output capability, and cascading via CEO/CE daisy-chain. It operates across -40°C to +85°C industrial temperature range.

For engineers reviewing the AT17F080-30JC datasheet, AT17F080-30JC pinout, AT17F080-30JC application, or AT17F080-30JC equivalent, key selection criteria include its 8-Mbit density, 20-lead PLCC industrial-grade package, 33 MHz configuration clock support, page-selectable memory partitioning (PAGESEL[1:0]/PAGE_EN), and compatibility with FPGA master serial mode without external controller.

Technical Context

The AT17F080-30JC implements a serial-access flash memory architecture optimized for FPGA configuration loading in Master Serial mode. Its control logic directly interfaces with FPGA CCLK, DIN, and CE signals-no microcontroller required. The device uses internal address counters synchronized to CLK and tri-states DATA on RESET/OE low or CEO assertion.

It supports two operational modes: FPGA configuration (SER_EN = High) and 2-wire ISP programming (SER_EN = Low). In configuration mode, it responds to CE, RESET/OE, and CLK to drive DATA; in ISP mode, A2 serves as chip select and PAGESEL/CEO are inactive. Paging is enabled only when PAGE_EN = High, dividing the 8-Mbit space into four 2-Mbit partitions.

Key Specifications

Pinout & Package

AT17F080-30JC is packaged in a 20-lead Plastic Leaded Chip Carrier (PLCC), JEDEC MS-018 compliant, with 1.27 mm lead pitch, body size 9.78 × 9.78 mm, and 3.05 mm height. Pin 1 identifier is a corner chamfer.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar FPGA configuration memory applications.

Compared with XC18V08 and LX1000-08, AT17F080-30JC uniquely combines 33 MHz speed, 5 V-tolerant I/O, 4-page memory partitioning, and 2-wire ISP-making it optimal for industrial, telecom, and multi-FPGA platforms requiring flexible, field-upgradable configuration.

Availability

AT17F080-30JC is available at Aetrix Electronics and suitable for industrial PLCs, FPGA-based test equipment, telecom remote radio units, and defense radar signal processors requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for AT17F080-30JC includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Atmel Corporation (now part of Microchip Technology) is a semiconductor manufacturer specializing in microcontrollers, nonvolatile memory, and programmable logic solutions.

The AT17F Series was designed specifically to provide cost-effective, in-system programmable configuration memory for SRAM-based FPGAs-including Xilinx, Altera, and Lucent devices-enabling simple, controller-free bitstream loading in master serial mode.

FAQ

What is the maximum configuration clock frequency supported by the AT17F080-30JC?

The AT17F080-30JC supports a maximum configuration clock frequency of 33 MHz when SER_EN is high. This allows full 8-Mbit bitstream loading in under 250 ms, enabling rapid FPGA startup in time-critical applications such as telecom base stations and automated test equipment. The 33 MHz rating applies to commercial and industrial temperature grades.

Does the AT17F080-30JC support in-system programming (ISP), and what interface does it use?

Yes, the AT17F080-30JC supports in-system programming via a 2-wire serial interface activated when SER_EN is driven low. During ISP mode, the CEO pin functions as A2 for device selection, and standard industry programmers-including Atmel's ATDH2200E and third-party tools-can reprogram the flash memory without removing the device from the PCB.

How does the page-select feature work on the AT17F080-30JC, and what is its practical benefit?

The AT17F080-30JC uses PAGE_EN, PAGESEL0, and PAGESEL1 to divide its 8-Mbit memory into four 2-Mbit pages. When PAGE_EN = High, PAGESEL[1:0] selects one of four address ranges (00000h–1FFFFh, 20000h–3FFFFh, etc.). This enables storage of multiple FPGA configurations-e.g., for different operating modes or field upgrades-without requiring external memory management logic.

Is the AT17F080-30JC compatible with Xilinx Virtex® FPGAs, and which pins connect directly?

Yes, the AT17F080-30JC is explicitly compatible with Xilinx Virtex® FPGAs in Master Serial mode. Direct connections include: AT17F080-30JC DATA → FPGA DIN, CLK → FPGA CCLK, CEO → next device CE (or unused), and RESET/OE → FPGA INIT_B. The 20-lead PLCC variant matches Virtex®-specific pinout per datasheet Figure 2.

What is the operating temperature range and supply voltage specification for the AT17F080-30JC?

The AT17F080-30JC is rated for industrial operation from -40°C to +85°C and requires a 3.3 V ±10% supply (2.97–3.63 V). Its 5 V-tolerant inputs-including CE, RESET/OE, CLK, and SER_EN-allow direct connection to 5 V control logic without level shifters, simplifying system integration in mixed-voltage environments.