| 摘要 |
A card slot unit (21) that allows a function-extending card (23) having connection electrodes (22) on an insertion-edge side thereof to be inserted into the card slot unit for establishing electrical connection with the card slot unit comprises a slot board (24) on which a predetermined wiring pattern (28) is formed, a slot connector (25) which is mounted on the slot board and has connector pins (30) electrically as well as mechanically connectable to the connection electrodes (22) of the function extending card, a card control IC (26) which is mounted on the slot board (24) and electrically connected to the connector pins (30) of the slot connector (25) through the wiring pattern (28), and an output connector (27) which is mounted on the slot board (24) and electrically connected to the card control IC (26) through the wiring pattern (28). The card slot unit is hardly affected by noise, reducing the number of errors generated in the signal. As a result, the operating frequency can be raised. <IMAGE> |
