LC87F1D64A Datasheet, PDF(12/29 Page) Sanyo Semicon Device – CMOS IC FROM 64K byte, RAM 4K byte on-chip 8-bit 1-chip Microcontroller with Full-Speed USB

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

LC87F1D64A Datasheet, PDF (12/29 Pages) Sanyo Semicon Device – CMOS IC FROM 64K byte, RAM 4K byte on-chip 8-bit 1-chip Microcontroller with Full-Speed USB

◁

LC87F1D64A

Power Pin Treatment

Connect the IC as shown below to minimize the noise input to the VDD1 pin.

Be sure to electrically short the VSS1, VSS2, and VSS3 pins.

Example 1: When the microcontroller is in the backup state in the HOLD mode, the power to sustain the high level of

output ports is supplied by their backup capacitors.

Power

supply

For backup

LSI

VDD1

VDD2

VDD3

VSS1 VSS2 VSS3

Example 2: The high level output at ports is not sustained and unstable in the HOLD backup mode.