HT48C06 datasheet(2/38 Pages) HOLTEK

2 / 38 page

Pin Assignment

Pad Assignment

* The IC substrate should be connected to VSS in the PCB layout artwork.

Pad Description

Pad Name

I/O

Options

Description

PA0~PA7

I/O

Pull-high*

Wake-up

Bidirectional 8-bit input/output port. Each bit can be configured as wake-up

input by options. Software instructions determine the CMOS output or

Schmitt trigger input with a pull-high resistor (determined by pull-high op-

tions).

PB0/BZ

PB1/BZ

PB2

I/O

Pull-high*

I/O or BZ/BZ

Bidirectional 3-bit input/output port. Software instructions determine the

CMOS output or Schmitt trigger input with a pull-high resistor (determined by

pull-high options).

The PB0 and PB1 are pin-shared with the BZ and BZ, respectively. Once the

PB0 and PB1 are selected as buzzer driving outputs, the output signals come

from an internal PFD generator (shared with a timer/event counter).

VSS

¾¾

Negative power supply, ground

PC0/INT

PC1/TMR

I/O

Pull-high*

Bidirectional I/O lines. Software instructions determine the CMOS output or

Schmitt trigger input with a pull-high resistor (determined by pull-high op-

tions). The external interrupt and timer input are pin-shared with the PC0 and

PC1, respectively. The external interrupt input is activated on a high to low

transition.

HT48R05A-1/HT48C05/HT48R06A-1/HT48C06

Rev. 1.10

June 9, 2004

P A 4

P A 5

P A 6

P A 7

O S C 2

O S C 1

V D D

R E S

P C 1 / T M R

P A 3

P A 2

P A 1

P A 0

P B 2

P B 1 / B Z

P B 0 / B Z

V S S

P C 0 / I N T

1 8

1 7

1 6

1 5

1 4

1 3

1 2

1 1

1 0

H T 4 8 R 0 5 A - 1 / H T 4 8 C 0 5

H T 4 8 R 0 6 A - 1 / H T 4 8 C 0 6

1 8 D I P - A / S O P - A

1 6

1 5

1 4

1 3

1 2

1 1

1 0

H T 4 8 R 0 5 A - 1 / H T 4 8 C 0 5

H T 4 8 R 0 6 A - 1 / H T 4 8 C 0 6

1 6 S S O P - A

P A 4

P A 5

P A 6

P A 7

O S C 2

O S C 1

V D D

R E S

P A 3

P A 2

P A 1

P A 0

P B 0 / B Z

V S S

P C 0 / I N T

P C 1 / T M R

( 0 , 0 )

1 0

1 1

1 2

1 3

1 4

1 5

1 6

1 7

1 8

P A 0

P B 2

P B 1 / B Z

O S C 2

P A 7

HT48C06 Datenblatt(PDF) 2 Page - Holtek Semiconductor Inc

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