To Next Page

To Previous Page

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.

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 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