LC86E6548 查看數據表（PDF） - SANYO -> Panasonic

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LC86E6548

8-Bit Single Chip Microcontroller with the UVEPROM

SANYO -> Panasonic 

LC86E6548

Pin name I/O

Function description

S48 to S51 I/O •Output for VFD display controller segment

-

*9

•Other function

S48 : High voltage I/O port PG0

S49 : High voltage I/O port PG1

S50 : High voltage I/O port PG2

S51 : High voltage I/O port PG3

RES

I Reset pin

-

XT1/ P74

I •Input pin for 32.768kHz crystal oscillation

-

•Other function

XT1 : Input port P74

In case of non use, connect to VDD1.

XT2/P75 O •Output pin for 32.768kHz crystal oscillation

-

•Other function

XT2 : Input port P75

In case of non use, connect to VDD1 at using

as port or unconnect at using as oscillation.

CF1

I Input pin for the ceramic resonator oscillation

-

CF2

O Output pin for the ceramic resonator oscillation

-

♦ All of port options (except pull-up resistor of port 0) can be specified in bit unit.

Option

*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.

Shorted the VSS1 terminal to the VSS2 terminal and to make the back-up time long.

*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 S31 : provided the pull-down resistor (fixed)

*9 S32 to S51 : not provided the pull-down resistor

Power

Supply

Back-up capacitor

LSI

VDD1

VDD2

VDD3

VDD4

VSS1

VFD

powers

VSS2

EPROM mode

-

-

-

-

-

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No.6747-9/21

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