Kilopass lowers voltage on antifuse memory IP
The X2Bit bitcell retains the configuration of the existing bitcell in the current XPM, Gusto-2, and SecretCode one-time-programmable (OTP) products. However, using a patented programming method, the bitcell achieves a lower turn-on voltage, the voltage at which the "1" memory bitcell generates current to distinguish itself from the "0" bitcell.
This makes X2Bit compatible for use with core voltages down to 0.75V used in the emerging Ultra-Low-Power (ULP) process technologies from semiconductor manufacturers. The X2Bit technology has been in use in the Gusto product line since 2Q15 and it will be optimized for Internet of Things (IoT) devices in 1Q16.
The X2Bit bitcell is suitable for next-generation IoT devices that demand less than 10uA/MHz in read currents. Currently available eNVM technologies typically consume 100uA/MHz under comparable operating conditions. Kilopass has completed a test vehicle of the X2Bit bitcell in a 65nm manufacturing process technology. The first product, likely the next-generation Gusto, using the X2Bit bitcell will tape-out in 1Q16.
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