Electrical fuse device

An electrical fuse device comprising:

• a plurality of fuse cores, each having an electrical fuse element and a switching element serially connected to the electrical fuse element;
• a program control circuit for generating a program shift signal by sequentially shifting a program control transmission signal in synchronization with an effective program clock signal and subsequently generating a program control signal based on program data and the program shift signal;
• a program mode control circuit for controlling the conducting and non-conducting states of the program control signal in accordance with a program enable signal and, when the program control signal is in a conducting state, outputting the program control signal to each of the switching elements in the plurality of fuse cores as a program signal;
• a program clock control circuit for controlling the conducting and non-conducting states of a program clock signal in accordance with a program clock enable signal and, when the program clock signal is in a conducting state, transmitting the program clock signal to the program control circuit as the effective program clock signal;
• and
• a counter circuit, disposed in a stage before the program clock control circuit, for counting the number of input pulses of a program mode switching pattern signal, asserting and outputting the program clock enable signal to the program clock control circuit when the number of the input pulses counted reaches a preset value.