| 摘要 |
Circuitry using fuse and anti-fuse latches (62) for selecting the number of input/output channels (98, 109) after encapsulation is disclosed. The various embodiments allow conventional bond pads (14, 16, 18) to be used for initial selection of the number of input/output channels prior to encapsulation. However, by providing different selection signals (52, 54), the number of input/output channels may be changed by the user at any time after encapsulation. Other embodiments employ "enable" latch circuits (133,135) allow the initial selection by the users at any time after encapsulation, and then at least one more subsequent selection. |
