LC87F1JJ8B Datasheet, PDF (11/28 Pages) Sanyo Semicon Device – 8-bit 1-chip Microcontroller with USB-host controller

User Options
Option Name
Port output type
Program start
address
USB Regulator
Type
P00 to P07
P10 to P17
P20 to P27
P30 to P34
-
USB Regulator
USB Regulator
(at HOLD mode)
USB Regulator
(at HALT mode)
LC87F1JJ8B
Flash ROM Version
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Option Selected in Units of
1 bit
1 bit
1 bit
1 bit
-
-
-
-
Setting
CMOS
Nch-open drain
CMOS
Nch-open drain
CMOS
Nch-open drain
CMOS
Nch-open drain
00000h
1FE00h
Use
Nonuse
Use
Nonuse
Use
Nonuse
Power Pin Treatment
Connect the IC as shown below to minimize the noise input to the VDD1 pin and extend the backup period. 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.
Power
supply
For backup
LSI
VDD1
VDD2
VDD3
VSS1 VSS2 VSS3
No.A1538-11/28