LC86E6449 Datasheet, PDF (10/22 Pages) Sanyo Semicon Device – 8-Bit Single Chip Microcontroller with the UVEPROM

LC86E6449
Pin name I/O
Function description
Option
CF1
I Input pin for the ceramic resonator oscillation
-
CF2
O Output pin for the ceramic resonator oscillation -
♦ All of port options except the pull-up resistor option of port 0 can be specified in a bit unit.
EPROM mode
-
-
*1 Memory select input for data security
*2 Output enable input
*3 Chip enable input
*4 Connect like the following figure to reduce noise into a VDD1 terminal.
*5 TA ! EPROM control signal input
*6 S0/T0 to S6/T6 : not provided the pull-down resistor
*7 S7/T7 to S15/T15 : provided the pull-down resistor (fixed)
*8 S16 to S27 : provided the pull-down resistor (fixed)
*9 S28 to S31 : not provided the pull-down resistor
*10 S32 to S37 : not provided the pull-down resistor
[Notes]
When connecting to the power supply, the power pins must be connected like following figure.
Power
Supply
For the LC866448B/44B/40B/36B
LSI
VDD1
For back-up
VDD2
(VFD power pin)
VSS1 VSS2
Power
Supply
For the LC866432A/28A/24A/20A/16A/12A/08A
LSI
VDD1
For back-up
VDD2
(VFD power pin)
VSS1 VSS2
No.6746-10/22