Chapter 1. Overview
1.4 Pin Function
INPUT
INPUT/
OUTPUT
PIN NAME
Function
@ RESET @ STOP
20Pin 24Pin 28Pin 44Pin
6
7
8
9
8
9
11
15
16
19
27
30
31
32
5
R00
R01
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I
- 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 INPUT of before
8
10
11
14
15
16
17
4
10
11
18
19
20
21
4
R02
9
R03
State
12
13
14
15
2
R04
STOP
(option)
R05
- Can be programmable as Key
Scan Input
- Pull-ups are automatically
disabled at output mode
R06
R07
R10
1
3
3
4
R11/INT1
R12/INT2
R13
- CMOS input with pull-up resistor
(option)
- Push-pull output
- Can be programmable as Key
Scan Input or Open drain output
- Direct Driving of LED(N-TR)
- Pull-ups are disabled at output
mode
-
2
2
3
-
1
1
2
State
INPUT of before
STOP
-
24
23
22
21
12
-
28
27
26
25
12
13
14
15
16
-
44
43
42
41
20
21
22
24
25
13
14
36
10
9
R14/EC
R15/T2
R16/T1
R17/T0
R20
-
20
19
10
-
- CMOS input with pull-up resistor
(option)
- Push-pull output
- Direct Driving of LED(N-TR)
- Pull-ups are disabled at output
mode
R21
-
-
R22
State
INPUT of before
STOP
-
-
R23
-
-
R24
-
-
R25
-
-
-
R26
-
-
-
R27
5
7
7
XIN
- Oscillator Input
- Oscillator Output
Low
High
4
6
6
XOUT
REMOUT
O
18
20
24
38
`L` Output
state
of before
STOP
O
- High Current Output
`L` output
`L` level
17
19
23
37
RESET
I
- Includes pull-up resistor
16
3
18
5
22
5
33
8
TEST
VDD
VSS
VSS
I
- Includes pull-up resistor
- Positive power supply
P
P
P
11
-
13
-
17
-
26
35
- Ground
1 - 8
HYNIX [ HYNIX SEMICONDUCTOR ]
