GMS81C1404 Datasheet, PDF(9/93 Page) Hynix Semiconductor

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GMS81C1404 Datasheet, PDF (9/93 Pages) Hynix Semiconductor – 8-BIT SINGLE-CHIP MICROCONTROLLERS

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GMS81C1404/GMS81C1408

PIN NAME

Pin No.

In/Out

VDD

VSS

RESET

Supply voltage

Circuit ground

Reset signal input

XIN

XOUT

RA0 (EC0)

I/O (Input)

RA1 (AN1)

I/O (Input)

RA2 (AN2)

I/O (Input)

RA3 (AN3)

RA4 (AN4)

I/O (Input)

8-bit general I/O ports

I/O (Input)

RA5 (AN5)

I/O (Input)

RA6 (AN6)

I/O (Input)

RA7 (AN7)

I/O (Input)

RB0 (AVref/AN0)

I/O (Input)

RB1 (BUZ)

I/O (Input)

RB2 (INT0)

I/O (Input)

RB3 (INT1)

RB4 (PWM0/COMP0)

I/O (Output)

8-bit general I/O ports

I/O (Output/Output)

RB5 (PWM1/COMP1)

I/O (Output/Output)

RB6 (EC1)

I/O (Output/Output)

RB7 (TMR2OV)

I/O (Output/Output)

RC3 (SRDYIN/SRDYOUT)

I/O (Input/Output)

RC4 (SCK)

RC5 (SIN)

I/O (Input/Output)

4-bit general I/O ports

I/O (Input)

RC6 (SOUT)

I/O (Output)

RD0 (INT2)

I/O (Input)

RD1 (INT3)

I/O (Input)

3-bit general I/O ports

RD2

I/O

Table 5-5 Pin Description

Function

External Event Counter input 0

Analog Input Port 1

Analog Input Port 2

Analog Input Port 3

Analog Input Port 4

Analog Input Port 5

Analog Input Port 6

Analog Input Port 7

Analog Input Port 0 / Analog Reference

Buzzer Driving Output

External Interrupt Input 0

External Interrupt Input 1

PWM0 Output or Timer1 Compare Output

PWM1 Output or Timer3 Compare Output

External Event Counter input 1

Timer2 Overflow Output

SPI READY Input/Output

SPI CLK Input/Output

SPI DATA Input

SPI DATA Output

External Interrupt Input 2

External Interrupt Input 3

June. 2001 Ver 1.2

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