Variable-output-characteristic semiconductor integrated circuit device

#1. Field of the Invention

#The present invention relates to a semiconductor integrated circuit device of which an output characteristic is variable according to a code fed thereto.

#2. Description of the Prior Art

#This and other objects and features of the present invention will become clear from the following description, taken in conjunction with the preferred embodiments with reference to the accompanying drawings in which:

#FIG. 1 is a block diagram illustrating the basic configuration according to the invention;

#FIG. 2 is a block diagram illustrating the basic configuration of an analog output circuit;

#Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram illustrating the basic configuration according to the invention, and FIG. 2 is a block diagram illustrating the basic configuration of an analog output circuit.

#In the block diagram of FIG. 1, when, for example, an input code in the form of a binary number 010001001 is fed from an unillustrated control device to a semiconductor integrated circuit device 1 according to the invention, it yields a characteristic that corresponds to the input code. Here, the input code 010001001 is composed of a user code, which the supplier of the semiconductor integrated circuit device. gives to the user who requested that particular characteristic, and a characteristic setting code. The same input code is never given to another user who requests the same characteristic or to another user who requests a different characteristic.

#In FIG. 2, the aforementioned input code is fed to a memory cell 2 provided within the semiconductor integrated circuit device 1, and the configuration or internal connection of an analog circuit block 3 acting as an output circuit is accordingly changed to yield an analog characteristic corresponding to the input code.