Current sensing;
embedded flash memories;
low voltage;
sense amplifier;
CIRCUIT;
D O I:
10.1109/TCSII.2014.2368259
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
This brief presents a novel sense amplifier with an enhanced current sensing method for embedded flash memories, capable of operating at a voltage as low as 1.2 V. A dynamic bit-line clamping circuit and a novel reference voltage generation circuit are also employed to improve the precharge speed and sensing window under low power supply voltage. The sense amplifier was implemented in a flash realized with a 0.13-mu m flash technology. Experimental results show a read access time of 32 ns with a power supply voltage of 1.2 V and slow corner at 125 degrees C.