LC87FBL08A Datasheet, PDF (12/28 Pages) Sanyo Semicon Device – 8K-byte FROM and 256-byte RAM integrated 8-bit 1-chip Microcontroller

LC87FBL08A
User Option Table
Option Name
Port output type
Option to be Applied on
P00 to P07
Mask version
*1
{
Flash-ROM
Version
{
Option Selected in
Units of
1 bit
P10 to P17
{
{
1 bit
P20 to P21
{
{
1 bit
P30 to P31
{
{
1 bit
Program start
address
-
×
{
-
*2
Low-voltage
Detect function
{
{
-
detection reset
function
Detect level
{
{
-
Power-on reset
Power-On reset level
{
{
-
function
*1: Mask option selection - No change possible after mask is completed.
*2: Program start address of the mask version is 00000h.
Option Selection
CMOS
Nch-open drain
CMOS
Nch-open drain
CMOS
Nch-open drain
CMOS
Nch-open drain
00000h
01E00h
Enable:Use
Disable:Not Used
3-level
4-level
Recommended Unused Pin Connections
Port Name
P00 to P07
P10 to P17
P20 to P21
P30 to P31
P70 to P73
CF1/XT1
CF2/XT2
Recommended Unused Pin Connections
Board
Open
Open
Open
Open
Open
Pulled low with a 100kΩ resistor or less
Pulled low with a 100kΩ resistor or less
Software
Output low
Output low
Output low
Output low
Output low
General-purpose input port
General-purpose input port
On-chip Debugger Pin Connection Requirements
For the treatment of the on-chip debugger pins, refer to the separately available documents entitled "RD87 on-chip
debugger installation manual".
Power Pin Treatment Recommendations (VDD1, VSS1)
Connect bypass capacitors that meet the following conditions between the VDD1 and VSS1 pins:
• Connect among the VDD1 and VSS1 pins and bypass capacitors C1 and C2 with the shortest possible heavy lead
wires, making sure that the impedances between the both pins and the bypass capacitors are as possible (L1=L1’ ,
L2=L2’).
• Connect a large-capacity capacitor C1 and a small-capacity capacitor C2 in parallel.
The capacitance of C2 should approximately 0.1μF.
L2
L1
C1
C2
VSS1
L1’
L2’
VDD1
Note : Be sure to electrically short-circuit between the VSS1 and VSS2 pins.
No.A1955-12/28