Abstract: The single chip microcontroller unit includes a processing unit having normal power mode of operation and a low power mode of operation. Analog circuitry and digital circuitry are connected to the processing unit. Monitoring circuitry determines if a chip supply voltage level exceeds a threshold level necessary to maintain operation of the digital circuitry.

Abstract: An apparatus comprises a band gap voltage generator circuit for generating a band gap voltage. A temperature invariant current generator is located within the band gap voltage generator circuit for generating a temperature invariant current. A temperature invariant current correction circuit is located within the band gap voltage generator circuit and adjusts the output voltage responsive to the temperature invariant current without altering temperature characteristics of the temperature invariant current.

Abstract: The single chip microcontroller unit includes a processing unit having normal power mode of operation and a low power mode of operation. Analog circuitry and digital circuitry are connected to the processing unit. A power management unit controls power operations of the processing unit, the analog circuitry and the digital circuitry. Power monitoring circuitry provides power control signals to the power management unit. The power monitoring circuitry further includes a system voltage monitoring circuit for generating a system voltage control signal responsive to a system voltage level with respect to a predetermined level. The power monitoring circuitry also includes a supply monitoring circuit for determining if a chip supply voltage level exceeds a threshold level.

Abstract: An electrical connector (1) comprises a housing (1) fixed on a PCB, a metal cover (40) pivotally mounted to the housing (10), and a lever (50) attached to the housing (10). The housing (10) defines a plurality of passageways receiving a plurality of terminals (20) therein. The cover (40) defines a first side (401) with a tongue portion (4010), a second side (402) opposite to the first side (401) and a third side (403) and a fourth side (404) opposite to the third side (401) connecting the first side (401) and the second side (402). The third and the fourth side (401, 402) define as an arched configuration and project toward the housing, and the first and the second sides (403, 404) define at least one projection (405) respectively.

Abstract: A contact (1) is provided for use in a land grid array (LGA) socket (300). The contact (1) of the present invention comprises a support body (12), a first contact arm (13) and a second contact arm (14) respectively extend from the same lengthwise side of the supporting body (12) through a first curved arm (131) and a second curved arm (141), a plurality of barb (111) configured in the support body (12) are adapted to securely hold the contact (1) in a hole (202) of a insulative housing. The two contact arms (13), (14) with different length are parallel one another and not aligned in the same plane for preventing contacts from undesired short caused by touching of adjoining contacts while an integrated circuit is mounted in the socket.

Abstract: An electrical connector (1) includes a connector body (51) holding a plurality of contacts (52). The connector body includes a base section (511) with four side walls (512) surrounded thereby to form an interior cavity adapted to receive an IC package. A datum protrusion (5120) is provided on each of two adjacent side walls and configured to laterally invade the interior cavity. A chamfered surface (513) is formed along a joint between each of two adjacent side walls and the base section, and further adjacent each of the datum protrusions, thereby avoiding stress generation around the joint between each side wall and the base section.

Abstract: An electrical connector (1) comprises a housing (1) fixed on a PCB, a metal cover (40) pivotally mounted to the housing (10), and a lever (50) attached to the housing (10). The housing (10) defines a plurality of passageways receiving a plurality of terminals (20) therein. The cover (40) defines a first side (401) with a tongue portion (4010), a second side (402) opposite to the first side (401) and a third side (403) and a fourth side (404) opposite to the third side (401) connecting the first side (401) and the second side (402). The third and the fourth side (401, 402) define as an arched configuration and project toward the housing, and the first and the second sides (403, 404) define at least one projection (405) respectively.

Abstract: An electrical connector (1) includes a connector body (51) holding a plurality of contacts (52). The connector body includes a base section (511) with four side walls (512) surrounded thereby to form an interior cavity adapted to receive an IC package. A datum protrusion (5120) is provided on each of two adjacent side walls and configured to laterally invade the interior cavity. A chamfered surface (513) is formed along a joint between each of two adjacent side walls and the base section, and further adjacent each of the datum protrusions, thereby avoiding stress generation around the joint between each side wall and the base section.