LC866424B datasheet(7/21 Pages) SANYO

Part #	LC866424B

Description	8-Bit Single Chip Microcontroller

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Manufacturer	SANYO [Sanyo Semicon Device]

Direct Link	https://www.sanyo-av.com/us/

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7 / 21 page

LC866448B/44B/40B/36B/32B/28B/24B/20B/16B/12B/08B

No.6699-7/21

Pin description

Pin name

I/O

Function description

Option

VSS1,2

-

Power pin (-) Short-circuit VSS1 to VSS2.

-

VDD1,2

-

Power pin (+) *1

Refer to Notes

-

VP

-

Power pin (+) for the VFD output pull-down resistor

-

PORT0

P00 to P07

I/O

•8-bit input/output port

•Input for port 0 interrupt

•Input/output in nibble units

•Input for HOLD release

•15V withstand at N-channel open drain output

•Pull-up resistor :

Provided/Not provided (each nibble)

•Output form :

CMOS/N-channel open drain (each bit)

PORT1

P10 to P17

I/O

•8-bit input/output port

•Input/output can be specified in a bit unit

•Other pin functions

P10 SIO0 data output

P11 SIO0 data input/bus input/output

P12 SIO0 clock input/output

P13 SIO1 data output

P14 SIO1 data input/bus input/output

P15 SIO1 clock input/output

P16 Buzzer output

P17 Timer 1 output (PWM0 output)

Output form :

CMOS/N-channel open drain (each bit)

PORT3

P30 to P33

I/O

•4-bit input/output port

•Input/output in bit unit

•15V withstand at N-channel open drain output

Output form :

CMOS/N-channel open drain (each bit)

•6-bit input port

•Other pin functions

P70 : INT0 input/HOLD release/N-channel Tr.

output for watchdog timer

P71 : INT1 input/HOLD release input

P72 : INT2 input/timer 0 event input

P73 : INT3 input with noise filter/timer 0 event input

P74 : 32.768kHz crystal oscillation terminal XT1

P75 : 32.768kHz crystal oscillation terminal XT2

•Interrupt received forms, the vector addresses

Pull-up resistor :

Provided/Not provided

(P70,71,72,73)

* P74 , P75 don’t have the pull-up

resistor option.

rising

falling

rising

&

falling

high

level

low

level

vector

INT0

enable

enable disable enable

enable

03H

INT1

enable

enable disable enable

enable

0BH

INT2

enable

enable disable disable

13H

PORT7

P70

P71 to P75

I/O

I

INT3

enable

enable disable disable

1BH

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