GMS81C50 Datasheet, PDF (14/99 Pages) Hynix Semiconductor – 8-BIT SINGLE CHIP MICROCONTROLLERS

HYUNDAI
GMS81C50 Series
PIN NAME
R00
R01
R02
R03
R04
R05
R06
R07
R10
R11/INT1
R12/INT2
R13
R14/EC
R15/T2
R16/T1
R17/T0
R20
R21
R22
R23
R24
R25
R26
R27
R30
R31
R32
R33
R34
R35
R36
R37
INPUT/
Pin Numbers
OUTPUT 28Pin 40PDIP 44PLCC 44QFP
I/O
28
1
13 41
I/O
1
2
14 42
I/O
2
3
15 43
I/O
3
4
16 44
I/O
4
5
17
1
I/O
5
6
18
2
I/O
6
7
19
3
I/O
7
8
20
4
I/O
11 16 29 12
I/O
12 17 30 13
I/O
13 18 31 14
I/O
14 19 32 15
I/O
17 22 36 19
I/O
18 23 37 20
I/O
20 26 40 23
I/O
21 27 41 24
I/O
23 33
4
31
I/O
24 34
5
32
I/O
25 35
6
33
I/O
26 36
7
34
I/O
27 37
8
35
I/O
-
38
9
36
I/O
-
39 10 37
I/O
-
40 11 38
I/O
-
28 42 25
I/O
-
29 43 26
I/O
-
30 44 27
I/O
-
32
3
30
I/O
-
9
21
4
I/O
-
10 22
5
I/O
-
12 25
8
I/O
-
13 26
9
Function
@ RESET @ STOP
- Each bit of the port can be
individually configured as an
input or an output by user software
- Push-pull output
- CMOS input with pull-up resistor
(can be selectable by user software)
- Can be programmable as Key
Scan Input or Open drain output
- Pull-ups are automatically
disabled at output mode
State
INPUT of before
STOP
- Each bit of the port can be
individually configured as an
input or an output by user software
- CMOS input with pull-up resistor
(can be selectable by user software)
- Push-pull output
- Can be programmable as
Open drain output
- Direct Driving of LED(N-TR)
- Pull-ups are disabled at output
mode
R40
I/O
-
25 39 22
XIN
XOUT
REMOUT
I
10 15 28 11 _{- Oscillator Input}
O
9 14 27 10 - Oscillator Output
O
19 24 38 21 - High Current Output
RESET
I
16 21 35 18 - Includes pull-up resistor
TEST
I
15 20 33 16 - Includes pull-up resistor
VDD
P
8 11 12,23,24 6,7,39 - Positive power supply
Low
High
`L` output `L` Output
`L` level ^state
of before
STOP
VSS
P
22 31 1,2.34 17,28,29 - Ground
11