Pin Assignment

Pin Description

Pin Name

I/O

Code

Option

Description

PA0~PA7

I/O

Pull-high

Wake-up

Bidirectional 8-bit input/output port. A configuration option determines if all of

the pins on this port are configured as wake-up inputs. Software instructions

determine the CMOS output or Schmitt trigger input with a pull-high resistor

(determined by pull-high options).

PB0~PB2

I/O

Pull-high

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).

VDD

¾¾

Positive power supply

VSS

¾¾

Negative power supply, ground

OSC2

OSC1

O

I

Crystal

or RC

OSC1, OSC2 are connected to an RC network or a crystal (determined by

code option) for the internal system clock. In the case of RC operation, OSC2

is the output terminal for 1/4 system clock (NMOS open drain output).

RES

I

¾

Schmitt trigger reset input. Active low.

Note: The Port A wake-up configuration option applies to all pins on Port A. Individual pins on this port cannot be setup

to have a wake-up function.

Absolute Maximum Ratings

Storage Temperature ............................

-50°Cto125°C

Operating Temperature...........................

-40°Cto85°C

IOL Total .............................................................150mA

IOH Total ..........................................................

-100mA

Total Power Dissipation .....................................500mW

Note: These are stress ratings only. Stresses exceeding the range specified under

²Absolute Maximum Ratings² may

cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed

in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.

HT48R062/HT48C062

Rev. 1.21

2

December 30, 2008

H T 4 8 R 0 6 2 / H T 4 8 C 0 6 2

1 6 D I P - A / N S O P - A

1 6

1 5

1 4

1 3

1 2

1 1

1 0

9

1

2

3

4

5

6

7

8

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

V S S

P B 1

P B 2