Holtek HT48R30A-1 - Pin Description

Note The pin compatibility features of the microcontroller packages allow for straightforward upgrading
to devices of higher functionality with minimal changes to application hardware.
Pin Description
HT48R10A-1/HT48C10-1
Pin Name I/O
Configuration
Option
Description
PA0~PA7 I/O
Pull-high
Wake-up
Schmitt Trigger
Bidirectional 8-bit input/output port. Each pin can be config-
ured as a wake-up input by configuration option. Software
instructions determine if the pin is a CMOS output or input.
Configuration options determine if all pins on this port have
pull-high resistors and if the inputs are Schmitt Trigger or
non Schmitt Trigger.
PB0/BZ
PB1/BZ
PB2~PB7
I/O
Pull-high
I/O or BZ/BZ
Bidirectional 8-bit input/output port. Software instructions
determine if the pin is a CMOS output or Schmitt Trigger in
-
put. A configuration option determines if all pins on this port
have pull-high resistors. Pins PB0 and PB1 are pin-shared
with BZ and BZ
, respectively.
PC0/INT
PC1/TMR
PC2
I/O Pull-high
Bidirectional 3-bit input/output port. Software instructions de
-
termine if the pin is a CMOS output or Schmitt Trigger input.
A configuration option determines if all pins on this port have
pull-high resistors. Pin PC0 is pin-shared with external inter
-
rupt pin INT
and PC1 shared with external timer pin TMR.
The external interrupt is activated on a high to low transition.
8
I/O Type MCU
P A 6 P A 5 P A 4 P B 7 P B 6 P B 5 P B 4
P G 7 P G 6 P G 5 P G 4
P A 3 P A 2
P A 7
P F 0
P F 1
P F 2
P F 3
O S C 2
O S C 1
P F 4
P F 5
P F 6
P F 7
V D D
R E S
T M R 1
P D 3
P D 2
P D 1
P D 0
P C 7
P A 1
P A 0
P E 7
P E 6
P E 5
P E 4
P B 3
P B 2
P B 1 / B Z
P B 0 / B Z
P E 3
P E 2
P E 1
P E 0
P D 7
P D 6
P D 5
P D 4
V S S
P C 6 P C 5 P C 4 P C 3 P C 2 P C 1 P C 0 P G 3 P G 2 P G 1 P G 0 T M R 0 I N T
H T 4 8 R 7 0 A - 1 / H T 4 8 C 7 0 - 1
6 4 Q F P - A
2 0 2 1 2 2 2 3 2 4 3 23 13 02 92 82 72 62 5
1
2
3
4
5
6
7
8
9
1 0
1 1
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
5 1
5 0
4 9
4 8
4 7
4 6
4 5
4 4
4 3
4 2
4 1
4 0
3 9
3 8
3 7
3 6
3 5
3 4
3 3
6 4 6 3 6 2 6 1 6 0 5 25 35 45 55 65 75 85 9
P A 6 P A 5 P A 4 P B 7 P B 6 P B 5 P B 4
P G 7 P G 6 P G 5 P G 4
P A 3 P A 2
P A 7
P F 0
P F 1
P F 2
P F 3
O S C 2
O S C 1
P F 4
P F 5
P F 6
P F 7
V D D
R E S
T M R 1
P D 3
P D 2
P D 1
P D 0
P C 7
2 0 2 1 2 2 2 3 2 4
P A 1
P A 0
P E 7
P E 6
P E 5
P E 4
P B 3 / T M R 2
P B 2 / I N T 1
P B 1 / B Z
P B 0 / B Z
P E 3
P E 2
P E 1
P E 0
P D 7
P D 6
P D 5
P D 4
V S S
P C 6 P C 5 P C 4 P C 3 P C 2 P C 1 / R X P C 0 / T X P G 3
P G 2
P G 1
P G 0
T M R 0
I N T 0
3 23 13 02 92 82 72 62 5
1
2
3
4
5
6
7
8
9
1 0
1 1
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
5 1
5 0
4 9
4 8
4 7
4 6
4 5
4 4
4 3
4 2
4 1
4 0
3 9
3 8
3 7
3 6
3 5
3 4
3 3
6 4 6 3 6 2 6 1 6 0 5 25 35 45 55 65 75 85 9
H T 4 8 R U 8 0 / H T 4 8 C U 8 0
6 4 Q F P - A