LC86F3448B Datasheet, PDF (10/21 Pages) Sanyo Semicon Device – 8-bit 1-chip Microcontroller

LC86F3448B
Pins
P0
Options
Input: Without pull-up MOS transistor
Output: N-channel open drain
Input: With pull-up MOS transistor
Output: CMOS
P1
Input: With programmable pull-up MOS transistor
Output: N-channel open drain
Input: With programmable pull-up MOS transistor
Output: CMOS
P3
No options
Input: With programmable pull-up MOS transistor
Output: CMOS
P7
No options
Input: With programmable pull-up MOS transistor
Output: With pull-up MOS (P70)
CMOS (P71 to P73)
Condition during and on release of reset
Output -off
Input mode: High impedance
Output-off
Flash version: During reset and in the first few hundred µs after reset
is released, the pull-up MOS transistor is OFF. Thereafter, set to
input mode with pull-up MOS Tr. ON
Mask version: During reset the pull-up MOS transistor is OFF.
After soon, set to input mode with pull-up MOS Tr. ON
Output-off
Input mode: High impedance
Output -off
Input mode: High impedance
Output-off
Input mode: High impedance
On-board writing system
The LC86F3448B has the On-board writing system. The program is renewable by using SANYO Flash On-board
System after the LSI has been installed on the application board.
This system is composed of 4 types divided by the combination of mode setting pin and communication pin.
Each type system has to connect the 6 pins (VDD, VSS, RES, communication pins) with the interface board of SANYO
Flash On-board System.
It is necessary that the pins to be used for the rewriting system should be able to be separated from the application board
properly.
The system type is selected by the option setting program (Su86K.exe).
types
type1
type2
type3
type4
mode setting pin
RES pin (high voltage (12V) applied)
RES pin (high voltage (12V) applied)
P30 pin (High level voltage (5V) applied)
P30 pin (High level voltage (5V) applied)
communication pins
P30(DATA1), P31(DATA0), P32(CLK)
P30(DATA1), P11(DATA0), P10(CLK)
P30(ENA/DATA1), P31(DATA0), P32(CLK)
P30(ENA/DATA1), P11(DATA0), P10(CLK)
• Type 3 or 4 is selected : P30 is exclusive for the on-board system. This pin must always be pulled-down, so
this pin can’t be used for other applications.
• The loader program must be written into the ROM to use On-board writing system.
The loader program should be written into the ROM before the LSI has been installed on the board by the general
purpose PROM programs.
When the option setting selects the this system to use, the loader program automatically links on the user program
linking.
Please ask to our sales persons before using On-board writing system.
No.A0120-10/21