Microchip Technology AT17F16-30JC

Overview

AT17F16-30JC from Atmel is a 16-Mbit (16,777,216 × 1-bit) in-system programmable serial configuration PROM designed to store FPGA bitstreams for SRAM-based FPGAs. It operates at 3.3 V ±10%, supports 33 MHz serial download speed, features 5 V-tolerant I/O pins, and delivers low-power standby current of ≤2 mA. It is used in FPGA master serial mode for automatic power-up configuration of Xilinx, Altera, and Atmel FPGAs.

For engineers reviewing the AT17F16-30JC datasheet, AT17F16-30JC pinout, AT17F16-30JC application, or AT17F16-30JC equivalent, key selection criteria include cascading capability via CEO/CE daisy-chain, page-selectable memory partitioning (4×4 Mbit pages), ISP support via 2-wire bus, and compatibility with industrial temperature range (–40°C to +85°C) operation.

Technical Context

The AT17F16-30JC implements a serial flash-based configuration memory architecture with dedicated control logic for FPGA master serial mode. Its interface uses CLK-driven address/bit counters, tri-state DATA output controlled by RESET/OE and CE, and CEO output for automatic daisy-chain handoff between cascaded devices.

It supports two operational modes: FPGA configuration mode (SER_EN = High) and 2-wire ISP programming mode (SER_EN = Low). Page-select functionality (PAGESEL[1:0] + PAGE_EN) enables independent access to four 4-Mbit memory partitions, while READY provides open-collector power-on reset status indication.

Key Specifications

Pinout & Package

AT17F16-30JC is packaged in an 8-lead Leadless Array Package (LAP), 6 mm × 6 mm × 1.04 mm body, pin-compatible with standard 8-lead SOIC/VOIC footprints. The package uses exposed metal pads for thermal conduction and complies with RoHS (Pb/halide-free).

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC18V04, AT17F16-30JC offers 4× more memory, industrial temperature support, 5 V-tolerant I/O, and built-in daisy-chain capability; compared with AT17F08-30JC, it doubles capacity while maintaining identical electrical behavior, package, and thermal profile - enabling scalable FPGA configuration without board revision.

Availability

AT17F16-30JC is available at Aetrix Electronics and suitable for FPGA configuration, industrial motor control, telecom infrastructure, and automated test equipment requiring stable component supply across extended lifecycle and temperature ranges.

Supply support for AT17F16-30JC 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 for industrial, automotive, and consumer applications.

The AT17F Series was designed specifically as FPGA configuration PROMs - optimized for seamless integration with Xilinx, Altera, and Atmel SRAM FPGAs in master serial mode, emphasizing reliability, cascading scalability, and in-system reprogrammability.

FAQ

What is the primary function of the AT17F16-30JC in an FPGA-based system?

The AT17F16-30JC serves as a serial configuration PROM that stores and delivers the bitstream required to configure SRAM-based FPGAs such as Xilinx Virtex or Altera APEX devices. It operates in master serial mode, where the FPGA's CCLK drives the AT17F16-30JC's CLK pin to synchronize bitstream readout from its 16-Mbit flash array directly into the FPGA's configuration logic upon power-up or reset.

Does the AT17F16-30JC support in-system programming (ISP), and how is it enabled?

Yes, the AT17F16-30JC supports in-system programming via a 2-wire serial interface. ISP is enabled by driving the SER_EN pin Low, which places the device into programming mode. In this mode, the A2 pin acts as a chip-select input, and DATA/CLK serve as bidirectional serial lines. The device generates internal programming voltages, requiring only a 3.3 V supply - no external high-voltage sources are needed for AT17F16-30JC ISP operations.

Can multiple AT17F16-30JC devices be connected in series (daisy-chained), and what pin enables this?

Yes, multiple AT17F16-30JC devices can be daisy-chained using the CEO (Chip Enable Output) and CE (Chip Enable) pins. When the first AT17F16-30JC completes its data output, its CEO pin goes Low, which enables the CE input of the next AT17F16-30JC in the chain. This automatic handoff allows seamless expansion of total configuration memory beyond 16 Mbit without external control logic or timing intervention.

What is the purpose of the PAGE_EN and PAGESEL[1:0] pins on the AT17F16-30JC?

The PAGE_EN and PAGESEL[1:0] pins enable 4-page memory partitioning within the AT17F16-30JC's 16-Mbit array. When PAGE_EN is High, the address space is divided into four 4-Mbit segments (00000h–3FFFFh, 40000h–7FFFFh, etc.), selected by PAGESEL[1:0]. This allows independent storage and retrieval of multiple FPGA configurations - for example, boot, debug, fail-safe, and feature variants - without reprogramming the entire device.

Is the AT17F16-30JC compatible with industrial temperature requirements, and what is its rated range?

Yes, the AT17F16-30JC is rated for industrial temperature operation from –40°C to +85°C. This rating is confirmed in the "Operating Conditions" section of its datasheet (Section 12), where VCC min/max and DC/AC parameters are specified across that full range. The -30JC suffix explicitly denotes the industrial-grade version, making AT17F16-30JC suitable for deployment in factory automation, outdoor telecom, and transportation control systems.