HT82M980A datasheet(3/6 Pages) HOLTEK

3 / 6 page

D.C. Characteristics

Ta=25

°C

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VDD

Conditions

VDD

Operating Voltage

¾¾

4.4

5.25

IDD

Operating Current

(Crystal OSC)

No load,

fSYS=6MHz

USB mode

PS/2 mode

ISUS

USB Suspend Mode

No load, system HALT

¾¾

250

VIL1

Input Low Voltage

(X1, X2, Y1, Y2, Z1, Z2, L, M,

R, B4, B5)

1.0

VIH1

Input High Voltage

(X1, X2, Y1, Y2, Z1, Z2, L, M,

R, B4, B5)

3.5

VIL2

Input Low Voltage

(RESET)

1.5

VIH2

Input High Voltage

(RESET)

3.5

VPOR

Built-in Power on Reset VDD

Detection Voltage

¾¾

3.7

IOL

Sink Current (LED)

VOL=0.8V

A.C. Characteristics

Ta=25

°C

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VDD

Conditions

fSYS

System Clock (Crystal OSC)

6000

kHz

Note: tSYS=1/fSYS

Timing Diagram

X, Y Axis Photo-Coupler Crossed Width

X, Y, Z Axis Counting

HT82M980A

Rev. 1.40

February 10, 2003

X 1 ( Y 1 ) ( Z 1 )

X 2 ( Y 2 ) ( Z 2 )

t r

t f

t p

N o t e : . o r X , Y - a x i s t r , t p , t f > 3 0 m s

. o r Z - a x i s t r , t p , t f > 1 m s

X 1

X 2

+ 1

- 1

Z 1

Z 2

+ 1

- 1

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