HT56R64 datasheet(3/90 Pages) HOLTEK

3 / 90 page

Pin Description

Pin Name

I/O

Configuration

Option

Description

PA0/BZ

PA1/BZ

PA2

PA3/PFD

PA4~PA7

I/O

BZ/BZ

PFD

Bidirectional 8-bit input/output port. Each individual bit on this port can be

configured as a wake-up input using the PAWU register. Software instruc-

tions determine if the pin is a CMOS output or Schmitt trigger input. A

pull-high resistor can be connected to each pin using the PAPU register.

Pins PA0, PA1 and PA3 are shared with BZ, BZ and PFD respectively, the

function of which is chosen via configuration option. Pins PA0~PA3 can

also be setup as open drain pins using the MISC register.

PB0/AN0~

PB7/AN7

I/O

Bidirectional 8-bit input/output port. Software instructions determine if the

pin is a CMOS output or Schmitt trigger input. A pull-high resistor can be

connected to each pin using the PBPU register. PB is pin-shared with the

A/D input pins. The A/D inputs are selected via software instructions.

Once selected as an A/D input, the I/O function and pull-high resistor

selections are disabled automatically.

PD0/PWM0~

PD3/PWM3

PD4/INT0

PD5/INT1

PD6/TMR0

PD7/TMR1

I/O

Bidirectional 8-bit input/output port. Software instructions determine if the

pin is a CMOS output or Schmitt trigger input. A pull-high resistor can be

connected to each pin using the PDPU register. The PWM outputs,

PWM0~PWM3, are pin shared with pins PD0~PD3, the function of which

is chosen using the PWM registers. Pins PD4~PD7 are pin-shared with

INT0, INT1, TMR0 and TMR1 respectively.

COM0~COM2

COM3/SEG32

COM2~COM0 are the LCD common outputs. A bit in the LCD Control

driver or as a common output driver.

HT56R64

Rev. 1.40

September 8, 2009

1 0

1 1

1 2

1 3

1 4

1 5

1 6

1 7

1 8

1 9

2 0

2 1

2 2

2 3

2 4

2 5

2 6

2 7

2 8

2 9

3 0

3 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 4 0 4 1 4 2 4 3 4 4 4 5 4 6 4 7 4 8 4 9 5 0

8 1

8 2

8 3

8 4

8 5

8 6

8 7

8 8

8 9

9 0

9 1

9 2

9 3

9 4

9 5

9 6

9 7

9 8

9 9

1 0 0

8 0

7 9

7 8

7 7

7 6

7 5

7 4

7 3

7 2

7 1

7 0

6 9

6 8

6 7

6 6

6 5

6 4

6 3

6 2

6 1

6 0

5 9

5 8

5 7

5 6

5 5

5 4

5 3

5 2

5 1

P A 5

P A 6

P A 7

N C

P B 0 / A N 0

P B 1 / A N 1

P B 2 / A N 2

P B 3 / A N 3

P B 4 / A N 4

P B 5 / A N 5

P B 6 / A N 6

P B 7 / A N 7

V S S

A V S S

P D 0 / P W M 0

P D 1 / P W M 1

P D 2 / P W M 2

P D 3 / P W M 3

P D 4 / I N T 0

P D 5 / I N T 1

P D 6 / T M R 0

P D 7 / T M R 1

N C

V L C D 1

N C

S E G 0

S E G 1

S E G 2

S E G 3

S E G 4

S E G 5

S E G 6

S E G 7

S E G 8

S E G 9

S E G 1 0 / S D O

S E G 1 1 / S D I / S D A

S E G 1 2 / S C K / S C L

S E G 1 3 / S C S

S E G 1 4 / P C L K

S E G 1 5 / P I N T

S E G 1 6

S E G 1 7

S E G 1 8

S E G 1 9

S E G 2 0

S E G 2 1

N C

H T 5 6 R 6 4

1 0 0 Q F P - A

HT56R64 Datasheet(PDF) 3 Page - Holtek Semiconductor Inc

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