HT82D22R datasheet(3/41 Pages) HOLTEK

3 / 41 page

Pin Assignment

Pin Description

Pin Name

I/O

Configuration

Option

Description

PA0~PA5,

PA6/TMR0

PA7/TMR1

I/O

Pull-high

Wake-up

CMOS/NMOS/PMOS

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

as a wake-up input by ROM code option. The input or output

mode is controlled by PAC (PA control register).

Pull-high resistor options: PA0~PA7

CMOS/NMOS/PMOS output options: PA0~PA7

Wake-up options: PA0~PA7

PA6 is wire-bonded with TMR0

PA7 is wire-bonded with TMR1

PB0/FSK-B_OUT

I/O

Pull-high

Wake-up

Bidirectional 1-bit input/output port. Software instructions deter-

mine the CMOS output or Schmitt trigger input with pull-high re-

sistor (determined by pull-high options)

PB0 is wire bonded with FSK-B demodulation data output.

Wake-up option: PB0

PC0/FSK-A_OUT

I/O

Pull-high

Wake-up

Bidirectional 1-bit input/output port. Software instructions deter-

mine the CMOS output or Schmitt trigger input with pull-high re-

sistor (determined by pull-high options)

PC0 is wire bonded with FSK-A demodulation data output.

Wake-up option: PC0

VSS, GNDA1A,

GNDA1B

¾¾

Negative power supply, ground

RES

Schmitt trigger reset input. Active low.

VDD,VDD-A, VDD-B

VCCA1A~VCCA2A

VCCA1B~VCCA2B

¾¾

Positive power supply

V33O

3.3V regulator output

USBD+/CLK

I/O

USBD+ or PS2 CLK I/O line

USB or PS2 function is controlled by software control register

USBD-/DATA

I/O

USBD- or PS2 DATA I/O line

USB or PS2 function is controlled by software control register

HT82D22R/HT82D22A

Rev. 1.10

January 27, 2010

H T 8 2 D 2 2 R

H T 8 2 D 2 2 A

4 8 Q F N - A

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

1 0

1 1

1 2

3 6

3 5

3 4

3 3

3 2

3 1

3 0

2 9

2 8

2 7

2 6

2 5

3 7

3 8

3 9

4 0

4 1

4 2

4 3

4 4

4 5

4 6

4 7

4 8

V S S

A N T _ I N 2 A

A N T _ I N 1 A

G N D A 1 A

V C C A 2 A

N C

V C C A 1 A

V D D - A

X T A L _ I N A

X T A L _ O U T A

V S S

V D D

P A 7

O S C I

O S C O

R E S

V S S

P B 0 / F S K - B _ O U T

V S S

X T A L _ O U T B

X T A L _ I N B

V D D - B

V C C A 1 B

N C

HT82D22R Datasheet(PDF) 3 Page - Holtek Semiconductor Inc

HT82D22R Datasheet(HTML) 3 Page - Holtek Semiconductor Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

Datasheet Download

Link URL