LC87F2J32A Datasheet, PDF (12/30 Pages) Sanyo Semicon Device – 8-bit 1-chip Microcontroller

LC87F2J32A
User Option Table
Option name
Port output type
Option to be applied on
P00 to P07
Flash-ROM version
{
Option selected in units of
1 bit
Option selection
CMOS
Nch-open drain
P10 to P17
{
CMOS
1 bit
Nch-open drain
P20 to P27
{
CMOS
1 bit
Nch-open drain
P30 to P36
{
CMOS
1 bit
Nch-open drain
Program start
address
-
{
00000h
-
07E00h
Low-voltage
detection reset
Detect function
{
function
Detect level
{
Enable: Use
-
Disable: Not Used
-
7-level
Power-on reset
Power-On reset level
{
function
8-level
-
Note: To reduce VDD signal noise and to increase the duration of the backup battery supply, VSS1, VSS2, and VSS3
should connect to each other and they should also be grounded.
Example 1: During backup in hold mode, port output ‘H’ level is supplied from the back-up capacitor.
Power
Supply
Back-up capacitor
LSI
VDD1
VDD2
VDD3
VSS1 VSS2 VSS3
Example 2: During backup in hold mode, output is not held high and its value in unsettled.
Power
Supply
Back-up capacitor
LSI
VDD1
VDD2
VDD3
VSS1 VSS2 VSS3
No.A1384-12/30