Voltage HVCCF (0.7 V) that is applied across the two electrodes of the capacitor fuse is a voltage of the same level as the voltage that is applied to normal memory cells, and the reliability of the semiconductor memory device is therefore improved....
a detection block including a detection transistor that charges the detection capacitor; and a consumption detector supplied by a voltage across the detection capacitor, the consumption detector having an input that receives he supply voltage and an output that provides a detection signal that controls...
CONSTITUTION:The voltage slightly lower than the voltage generated in the charging circuit 1 is generated across the fuse 21 if the fuse 21 is assumed to be blown. This voltage is supplied via the diode 210 to the terminals H and Z of a fuse checking circuit 7. The fuse checking circuit...
The unit (24) comprises a polarity check diode (27), a Zener diode (26) and a fuse (25) in series across the main terminals. The Zener acts as a spike clipper. The polarity check diode blows the fuse if the unit is incorrectly connected. The fuse also blows on sustained over-...
The unit (24) comprises a polarity check diode (27), a Zener diode (26) and a fuse (25) in series across the main terminals. The Zener acts as a spike clipper. The polarity check diode blows the fuse if the unit is incorrectly connected. The fuse also blows on sustained over-...