描述 Description

The AT18F Series of JTAG In-System Programmable Configuration PROMs (Configurators) provide an easy-to-use, cost-effective configuration memory for Field Programmable Gate Arrays. The AT18F Series device is packaged in a 20-lead TSSOP. The AT18F Series Configurator uses a simple serial-access procedure to

configure one or more FPGA devices.

The AT18F Series Configurators can be programmed with Atmel or industry-standard, third-party, stand-alone programmers such as BP, Data I/O, Hi-Lo, etc.

特性 Features

? Very Low-cost Configuration Memory

? Programmable 1,048,576 x 1, 2,097,152 x 1, 4,194,304 x 1 and 7,340,032 x 1-bit Serial Memories Designed to Store Configuration Programs for Field Programmable Gate Arrays (FPGAs)

? 1.8V, 2.5V, and 3.3V I/O

? 3.3V Supply Voltage

? Program Support using an Atmel Programmer or Industry-standard Third Party Programmers

? In-System Programmable (ISP) via JTAG Interface (IEEE 1532)

? IEEE 1149.1 Boundary-scan Testability

? Simple Interface to SRAM FPGAs

? Pin Compatible with Xilinx? XCFxxS Series Platform Flash PROM to Configure Xilinx Spartan? and Virtex? FPGAs

? Cascadable Read-back to Support Additional Configurations or Higher-density FPGAs

? Low-power CMOS FLASH Process

? Available in 20-lead TSSOP Package

? Low-power Standby Mode

? Fast Serial Download Speeds up to 33 MHz

? Endurance: 100,000 Write Cycles Typical

? Green (Pb/Halide-free/RoHS Compliant) Package

? Functionally-compatible with Existing AT17 Series Configuration Memories to Configure Atmel AT40KAL Series FPGAs