AT17LV040-10BJC

AT17LV040-10BJC Application Field and Working Principle

AT17LV040-10BJC is a low voltage, one-time programmable (OTP) antifuse nonvolatile memory (NVM). It is designed to serve as the configuration memory for Field Programmable Gate Arrays (FPGAs) and other programmable logic devices (PLDs). As OTP devices, AT17LV040-10BJC are programmed once and retain their configuration even during power removal.

Types of FPGAs

There are two main types of FPGAs that utilize the AT17LV040-10BJC: stand-alone FPGAs and embedded FPGAs. Stand-alone FPGAs are generally programmed using an external configuration programmer and are readily available from leading electronic component suppliers. Embedded FPGAs, on the other hand, are typically implemented inside a processor or other integrated device and are programmed through an in-system serial interface.

Features of AT17LV040-10BJC

The AT17LV040-10BJC boasts several advantages over other NVM devices, including low power consumption, a wide operating temperature range, and a variety of process options designed to meet the diverse needs of circuit designers.

• Small package size with 4 Kbits of memory
• Low power consumption with 0.05 mW active current requirements
• Wide operation range with -40°C to +85°C commercial temperature range
• Variety of processes available, including CS (silicon-oxide-nitride-oxide-silicon) Si (silicon-oxide-silicon) and FL (fused-layers) processes

Working Principle of AT17LV040-10BJC

The AT17LV040-10BJC uses a unique antifuse technology to provide nonvolatile storage for FPGA or PLD configurations. The antifuse technology works by setting a permanent bridge between two vertical lines separated by an insulating layer. By connecting these two lines, a permanent logic “1” is programmed into the NVM device. This programming process is irreversible and the logic “1” remains until power is removed from the NVM device.

In order to program the AT17LV040-10BJC, the device must first be placed in programming mode. This is achieved by applying a fixed programming voltage to configure the device. Once the device is in programming mode, a single programming pulse is used to “confirm” every logic “1” to be programmed into the device. For stand-alone FPGAs, this process is typically carried out through an external configuration programmer. For embedded FPGAs, the programming pulse is generated through an in-system serial interface.

Conclusion

The AT17LV040-10BJC is an ideal solution for FPGAs and PLDs requiring nonvolatile storage of configuration information. Its antifuse technology offers a simple yet reliable method for retaining FPGA configurations, while its wide operating temperature range and low power consumption make it suitable for a variety of applications.