Absolute Maximum Ratings

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

-50°Cto125°C

Operating Temperature...............................0

°Cto70°C

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 reliabil-

ity.

D.C. Characteristics

Ta=25

°C

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Conditions

Operating Voltage

¾¾

4

¾

5.5

V

Operating Current (6MHz Crystal)

5V

¾

79

mA

Standby Current

5V

No load, system HALT

¾

300

500

mA

Input Low Voltage for I/O Ports

5V

¾

0

¾

0.8

V

Input High Voltage for I/O Ports

5V

¾

2

¾

5V

Input Low Voltage (RES)5V

¾

0

¾

V

Input High Voltage (RES)5V

¾

¾

V

Output Sink Current for Other Ports

PA0~PA7, PB2~PB4, PB7

5V

24

¾

mA

Output Port Source Current

5V

-2.5

-4

¾

mA

Pull-down Resistance for PA0~PA3, PB2

and PB3

5V

¾

10

30

50

k

W

Pull-high Resistance for CLK and DATA

¾¾

2

4.7

6

k

W

Pull-high Resistance for PA0~PA7,

PB2~PB4, PB7

¾¾

30

50

70

k

W

Low Voltage Reset

5V

¾

2.4

2.7

3

V

A.C. Characteristics

Ta=25

°C

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Conditions

System Clock (Crystal OSC)

5V

¾

6

¾

12

MHz

RC Clock with 8-bit Prescaler Register

5V

¾

032

¾

kHz

Watchdog Time-out Period (System Clock)

¾ Without WDT prescaler 1024

¾¾

USBD+, USBD- Rising & falling Time

¾¾

75

¾

300

ns

System Start-up Timer Period

¾ Wake-up from HALT

¾

1024

¾

Crystal Setup

¾¾

¾

510

ms

HT82M99E

Rev. 1.50

3

November 19, 2004