| 摘要 |
A method of reading a memory cell is disclosed. The method includes the step of connecting (708) a reference voltage generator (600) to a first bitline (/BL). The first bitline is charged to a reference voltage (VREF) from the reference voltage generator. The reference voltage generator is disconnected (RFWL_A/B low at t4, FIG. 10B) from the first bitline. A signal voltage (PL high at t4, FIG. 10B) from the memory cell is applied to a second bitline (BL) after the step of disconnecting. A difference voltage between the first and second bitlines is amplified (SAEN high at t7, FIGS. 8A and 10B). |
