GMS81C1404 Datasheet, PDF (11/98 Pages) Hynix Semiconductor – 8-BIT SINGLE-CHIP MICROCONTROLLERS

GMS81C1404/GMS81C1408
PIN NAME
Pin No.
In/Out
V_DD
5
V_SS
22
RESET
21
X_IN
19
X_OUT
20
RA0 (EC0)
25
RA1 (AN1)
26
RA2 (AN2)
27
RA3 (AN3)
28
RA4 (AN4)
1
RA5 (AN5)
2
RA6 (AN6)
3
RA7 (AN7)
4
RB0 (AVref/AN0)
6
RB1 (BUZ)
7
RB2 (INT0)
8
RB3 (INT1)
9
RB4 (PWM0/COMP0)
10
RB5 (PWM1/COMP1)
11
RB6 (EC1)
12
RB7 (TMR2OV)
13
RC3 (SRDYIN/SRDYOUT) 14
RC4 (SCK)
15
RC5 (SIN)
16
RC6 (SOUT)
17
RD0 (INT2)
23
RD1 (INT3)
24
RD2
18
-
Supply voltage
-
Circuit ground
I
Reset signal input
I
O
I/O (Input)
I/O (Input)
I/O (Input)
I/O (Input)
I/O (Input)
8-bit general I/O ports
I/O (Input)
I/O (Input)
I/O (Input)
I/O (Input)
I/O (Input)
I/O (Input)
I/O (Output)
8-bit general I/O ports
I/O (Output/Output)
I/O (Output/Output)
I/O (Output/Output)
I/O (Output/Output)
I/O (Input/Output)
I/O (Input/Output)
I/O (Input)
4-bit general I/O ports
I/O (Output)
I/O (Input)
I/O (Input)
3-bit general I/O ports
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
SEP. 2004 Ver 1.3
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