LC876694B/78B/62B

No.6843-8/23

Pin name

I/O

Function description

Option

PORT8

P80 to P87

I/O

• 8bit Input/output port

• Input/output can be specified in a bit unit

• Other functions:

AD input port: AN0 to AN7

Weak signal detector input port: MICIN(P87)

No

S0/T0 to

S6/T6

O

• Large current output for VFD display controller digit (can be used for segment)

Yes

S7/T7 to

S8/T8

O

• Large current output for VFD display controller digit (can be used for segment)

No

S9/T9 to

S15/T15

O

• Large current output for VFD display controller segment/digit

No

S16 to S23

I/O

• Output for VFD display controller segment/digit

• Other functions:

High voltage input port: PC0 to PC7

No

S24 to S31

I/O

• Output for VFD display controller segment

• Other functions:

High voltage input port: PD0 to PD7

No

S32 to S39

I/O

• Output for VFD display controller segment

• Other functions

High voltage input port: PE0 to PE7

Yes

S40 to S47

I/O

• Output for VFD display controller segment

• Other functions:

High voltage input/output port: PF0 to PF7

Yes

S48 to S51

I/O

• Output for VFD display controller segment

• Other functions:

High voltage input/output port: PG0 to PG3

No

RES

I

Reset terminal

No

XT1

I

• Input for 32.768kHz crystal oscillation

• Other functions:

General purpose input port

When not in use, connect to VDD1.

AD input port: AN10

No

XT2

I/O

• Output for 32.768kHz crystal oscillation

• Other functions:

General purpose input port

When not in use, set to oscillation mode and leave open circuit.

AD input port: AN11

No

CF1

I

Input terminal for ceramic oscillator

No

CF2

O

Output terminal for ceramic oscillator

No